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feat(workflow): show durable run records in Chat

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pku-xht
2026-08-10 18:37:30 +08:00
parent d2321d210a
commit 8de6df19d9
73 changed files with 3013 additions and 227 deletions
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docs/subsystems/workflow.zh.md
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@@ -6,7 +6,7 @@
Service Definition：[dsh-workflow](../../packages/workflow/workflow)（`ctx.workflows` + 下文词汇）。Service provider 是 [dsh-workflow-workerthread](../../packages/workflow/workflow-workerthread)（一个 `node:worker_threads` 引擎——每个 run 一个 worker，脚本的 vm 上下文位于其中）；面向模型的 Consumer 是 [dsh-tool-workflow](../../packages/workflow/tool-workflow)。提案与设计理由见 [dynamic-workflows Agent Note](../../.agents/notes/implemented/feature/2026-07-05-dynamic-workflows.md)。
源码：[`packages/workflow/workflow/src/types.ts`](../../packages/workflow/workflow/src/types.ts)
源码：浏览器安全词汇位于 [`packages/workflow/workflow/src/types.ts`](../../packages/workflow/workflow/src/types.ts)，Host 请求与活跃运行句柄位于 [`runtime-types.ts`](../../packages/workflow/workflow/src/runtime-types.ts)。
## 启动请求
@@ -15,33 +15,23 @@ Service Definition：[dsh-workflow](../../packages/workflow/workflow)（`ctx.wor
```ts type-equiv
/**
* What a caller asks for when starting a workflow run. `meta` and `args` are
* plain JSON DATA by the seam contract (the tool builds both from the model's schema-validated call;
* the engine validates `meta` against its schema and rejects loud
* before anything runs) — an engine never evaluates script text to obtain
* them. `parent` is REQUIRED — every `agent()` the script spawns is
* attributed to it (cwd, lineage, depth flow through the subagent seam).
* plain JSON data by the seam contract. `parent` is required because every
* `agent()` spawned by the script is attributed to that live Agent.
*/
interface WorkflowStartRequest {
/** The plain-JS script body (top-level await allowed; ends with `return <json-value>`). */
script: string
/** The workflow's identity fields as plain JSON data, validated by the engine. */
/** The workflow's identity block, as plain JSON data (shape-validated by the engine). */
meta: WorkflowMeta
/** Optional input exposed verbatim to the script as the `args` global. */
args?: unknown
/**
* Optional engine-wide child-provider override for this run. The workflow
* script cannot observe or replace it; omission uses the engine's configured
* provider.
*/
/** Optional engine-wide child-provider override for this run. */
subagentProvider?: string
/**
* Optional per-run total-child ceiling. Implementations reject values above
* their deployment ceiling before publishing the run.
*/
/** Optional per-run total-child ceiling. */
maxTotalAgents?: number
/** The agent on whose behalf the run executes (parent of every child). */
parent: Agent
/** Cancels the run when aborted (the tool's `exec.signal`). */
/** Cancels the run when aborted. */
signal?: AbortSignal
}
```
@@ -76,7 +66,7 @@ interface WorkflowMeta {
```ts type-equiv
/**
* The outcome of one run, resolved by {@link WorkflowRun.result}. `value` is
* The outcome resolved by a live workflow run. `value` is
* the script's materialized return value (plain host-realm JSON data; `null`
* when the script returned `undefined`) — meaningful only for `completed`.
* A non-`completed` reason carries the failure in `error`; the consumer maps
@@ -106,19 +96,17 @@ interface WorkflowResult {
```ts type-equiv
/**
* Holder-owned live workflow. `result` never rejects and settles within the
* engine's cancellation grace; failures resolve through `stopReason`. Consumers
* may cancel and must call idempotent `dispose()` on every path to await bounded
* script settlement and child quiescence.
* Holder-owned live workflow. `result` never rejects; consumers may cancel
* and must call idempotent `dispose()` to await script and child quiescence.
*/
interface WorkflowRun {
readonly id: WorkflowRunId
/** The validated meta block (available before the body runs). */
/** The validated meta block available before the script body runs. */
readonly meta: WorkflowMeta
readonly result: Promise<WorkflowResult>
/** Cancel the run: children abort, pending hooks reject, the script dies at its next await (or is force-settled at the grace). */
/** Cancel the run and its children. */
cancel(reason?: string): void
/** Cancel + bounded-grace settle; safe to call on every path (idempotent). */
/** Cancel if needed and await bounded settlement and cleanup. */
dispose(): Promise<void>
}
```
@@ -131,6 +119,14 @@ interface WorkflowRun {
`workflow/*` 事件（`workflow/start`、`workflow/phase`、`workflow/log`、`workflow/agent-start`、`workflow/agent-end`、`workflow/end`，见[事件目录](#cordis-surface)）是**仅供观察**的 emit，携带数据快照：每个 payload 以 `WorkflowRunInfo`（id + meta）开头，而非活跃的 `WorkflowRun`，因此订阅者无法获得 `cancel`/`dispose`；`workflow/end` 刻意省略 result value（观察结果的监听器不得收到调用方 result 的可变别名）。每次 emit 对每个监听器隔离：抛出异常的订阅者被记录日志但不传播，不会饿死在它之后注册的监听器；每个监听器收到自己的 payload 克隆，因此修改它既不会损坏引擎也不会影响其他监听器。这种隔离方式与 `subagent/start`/`subagent/end` 一致。
## 持久 Chat 记录
顶层 `dsh-tool-workflow` 消费方把展示事实投影到调用它的父 Session，同时不改变执行所有权。运行接受后写 `tool-workflow/run-start`，以 `runId + seq` 配对成员开始与结束，并且只在结果已取得且 dispose 完全停稳后写 `tool-workflow/run-end`。嵌套 transport 调用不写记录。第一次 append 失败会禁用本运行后续写入，因此日志保持为空或合法连续前缀，工具结果不变。
`dsh-tool-workflow/invariant` 会在实时提交前和 Session 加载时校验同一协议：每个运行只有一个 start，成员序号为正且唯一，成员 end 必须配对，仍有开放成员时不能结束运行，运行结束后不能继续更新。日志尾部缺少成员 end 或 run end 是有效的中断证据，不是损坏。
`dsh-client-ui-workflow-run` 通过 Conversation Node 引擎把四类事件折叠为一个 `workflow-run` Chat 节点，以 run-start 序号锚定在原工作流工具节点之后。阶段组只来自真正开始过的成员，并保留精确字符串，包括字段缺省与 `''` 的区别。Location 关闭时，缺失终点会显示为已中断。32 像素运行行使用 module-platform 背景、常驻 chevron 与内联状态点加文字；32 像素阶段行在主区显示标题和计数，在固定尾部精确显示聚合状态且不重复状态点；成员使用 16 像素状态点槽和固定 64 像素生命周期列。只有成员状态与当前列表同时证明它是同父级、仍运行的本地 subagent 时，带下划线名称才标记普通 Session 导航。
<!-- BEGIN GENERATED cordis-surface (gen-cordis-catalog.ts) — do not edit between markers -->
<a id="cordis-surface"></a>
@@ -155,7 +151,7 @@ Workflow Service Definition contract. Invalid requests throw before publication;
abstract start(request: WorkflowStartRequest): WorkflowRun
```
Source: [`packages/workflow/workflow/src/index.ts:159`](../../packages/workflow/workflow/src/index.ts)
Source: [`packages/workflow/workflow/src/index.ts:157`](../../packages/workflow/workflow/src/index.ts)
<a id="workflow-events"></a>
@@ -181,7 +177,7 @@ One `agent()` call settled (clean result, child failure, or run cancellation). P
'workflow/agent-end'(info: WorkflowRunInfo, agent: WorkflowAgentEndInfo): void
```
Source: [`packages/workflow/workflow/src/index.ts:81`](../../packages/workflow/workflow/src/index.ts)
Source: [`packages/workflow/workflow/src/index.ts:79`](../../packages/workflow/workflow/src/index.ts)
<a id="workflowagent-start--emit"></a>
@@ -202,7 +198,7 @@ One `agent()` call established a published child run. Paired with Events['workfl
'workflow/agent-start'(info: WorkflowRunInfo, agent: WorkflowAgentInfo): void
```
Source: [`packages/workflow/workflow/src/index.ts:70`](../../packages/workflow/workflow/src/index.ts)
Source: [`packages/workflow/workflow/src/index.ts:68`](../../packages/workflow/workflow/src/index.ts)
<a id="workflowend--emit"></a>
@@ -223,7 +219,7 @@ A workflow run settled (any stop reason). Fired when WorkflowRun.result resolves
'workflow/end'(info: WorkflowRunInfo, result: WorkflowResultInfo): void
```
Source: [`packages/workflow/workflow/src/index.ts:91`](../../packages/workflow/workflow/src/index.ts)
Source: [`packages/workflow/workflow/src/index.ts:89`](../../packages/workflow/workflow/src/index.ts)
<a id="workflowlog--emit"></a>
@@ -241,7 +237,7 @@ The script emitted a narration line (a `log(message)` call).
'workflow/log'(info: WorkflowRunInfo, message: string): void
```
Source: [`packages/workflow/workflow/src/index.ts:60`](../../packages/workflow/workflow/src/index.ts)
Source: [`packages/workflow/workflow/src/index.ts:58`](../../packages/workflow/workflow/src/index.ts)
<a id="workflowphase--emit"></a>
@@ -260,7 +256,7 @@ The script entered a phase (a `phase(title)` call) — progress grouping for obs
'workflow/phase'(info: WorkflowRunInfo, title: string): void
```
Source: [`packages/workflow/workflow/src/index.ts:53`](../../packages/workflow/workflow/src/index.ts)
Source: [`packages/workflow/workflow/src/index.ts:51`](../../packages/workflow/workflow/src/index.ts)
<a id="workflowstart--emit"></a>
@@ -278,5 +274,5 @@ A workflow run started — the script's meta block validated, the body about to
'workflow/start'(info: WorkflowRunInfo): void
```
Source: [`packages/workflow/workflow/src/index.ts:45`](../../packages/workflow/workflow/src/index.ts)
Source: [`packages/workflow/workflow/src/index.ts:43`](../../packages/workflow/workflow/src/index.ts)
<!-- END GENERATED cordis-surface -->