From a4091daa3d7bf3f9f9a958969ae45878e57e5d83 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Thu, 25 Jun 2026 13:59:34 +0800 Subject: [PATCH 01/32] docs: propose web capability seam --- docs/rfc/README.md | 1 + .../2026-06-24-web-capability-seam.md | 385 ++++++++++++++++++ 2 files changed, 386 insertions(+) create mode 100644 docs/rfc/proposed/architecture/2026-06-24-web-capability-seam.md diff --git a/docs/rfc/README.md b/docs/rfc/README.md index a731aa8ff9..73a2675caa 100644 --- a/docs/rfc/README.md +++ b/docs/rfc/README.md @@ -59,6 +59,7 @@ Do NOT write one for a mechanical or local choice (a variable name, a one-file r |---|---| | [Runtime schemas for the event vocabulary (Zod vs the merge-extensible-map pattern)](proposed/architecture/2026-06-16-typed-event-schemas.md) | 2026-06-16 | | [Extract a generic long-running tool runtime](proposed/architecture/2026-06-20-generic-long-running-tool-runtime.md) | 2026-06-20 | +| [Web capability seam - provider registry and model-facing web tools](proposed/architecture/2026-06-24-web-capability-seam.md) | 2026-06-24 | ### Process diff --git a/docs/rfc/proposed/architecture/2026-06-24-web-capability-seam.md b/docs/rfc/proposed/architecture/2026-06-24-web-capability-seam.md new file mode 100644 index 0000000000..e97e8380da --- /dev/null +++ b/docs/rfc/proposed/architecture/2026-06-24-web-capability-seam.md @@ -0,0 +1,385 @@ +# RFC: Web capability seam - stable tools over multiple providers + +Status: proposed + +## Problem + +The harness needs model-facing web tools without binding the model contract to one vendor's API shape. Search is the immediate pressure point: the first version should support at least Exa search and Perplexity search — two deliberately different provider shapes (Exa returns a flat `results[]` of `{title, url, highlights, publishedDate}`; Perplexity returns a generated answer plus citations), which is what proves the normalized seam does not just mirror one vendor. Fetch is a separate capability: an anonymous public HTTP(S) fetch backend has transport, security, redirect, decoding, and size-limit concerns that are not the same as provider-backed search. + +The model-facing surface should stay stable while backends change. A search provider swap should not change how the model asks for a query, and a fetch implementation swap should not change how the model asks for a URL. Conversely, a provider package should not expose its own model-facing tool schema just because it has extra provider-specific knobs. + +Putting search and fetch directly in `dsh-tool-web` would make the model-facing tool own provider selection, backend request mapping, transport policy, result normalization, prompt guidance, presentation, and schema registration at once. Letting each provider register its own tool has the opposite problem: tool availability, names, descriptions, and parameters would depend on whichever provider packages happen to load, and provider-specific fields would leak into the model contract. + +There is also a provider-selection question. Existing `tool-bash` and `tool-fs` can rely on Cordis `inject` because there is one backend service key. Web has two independent capabilities (`search` and `fetch`) and potentially multiple providers per capability. `inject: ['web']` proves the seam exists; it does not prove a usable search or fetch provider exists, and it does not define which provider should win when several are registered. + +## Proposal + +Introduce web access as a first-class capability seam following [the capability-seam RFC](../../implemented/architecture/2026-06-13-capability-seams.md): + +1. `@deepseek-ai/dsh-web` (`packages/web/web`) owns `ctx.web`, provider registration, provider selection, shared request/result vocabulary, and web-specific errors. +2. Provider packages implement concrete backends and register capabilities with `ctx.web`, for example `@deepseek-ai/dsh-web-search-exa`, `@deepseek-ai/dsh-web-search-perplexity`, and `@deepseek-ai/dsh-web-fetch-local`. +3. `@deepseek-ai/dsh-tool-web` (`packages/web/tool-web`) owns the model-facing `web_search` and `web_fetch` tool schemas, prompt sections, argument validation, result formatting, and tool-owned presentation over `ctx.web`. + +Providers do not register tools. Providers register capabilities. `dsh-tool-web` is the only owner of model-facing names, descriptions, prompt guidance, JSON schemas, and presentation. + +Search and fetch are separate capabilities and separate model-facing tools, but they are deliberately one seam. `ctx.web` is a single web-access middle layer between provider packages on one side and the tool consumer on the other: one service to inject, one provider-selection policy owner, one abort/error vocabulary, one place a product configures "how this harness reaches the web." The two halves do not share a request schema and have no shared business logic — search normalizes provider-backed discovery into a portable result with optional answer text and citeable sources, while fetch retrieves a concrete public HTTP(S) URL and returns a status code plus bounded decoded content — but they are parallel registries on one capability surface, not two surfaces. The cost is a `WebService` whose registry/status/exec methods come in `Search`/`Fetch` pairs; that parallelism is intentional, not a missed extraction. Splitting into `dsh-search` and `dsh-fetch` is the rejected alternative below. + +`dsh-tool-web` should register model-facing web tools when the product has enabled those tools and the `ctx.web` seam is present. Backend availability is an execution-time concern, not a schema-registration concern: + +- Register `web_search` when web search is enabled for the product/app. +- Register `web_fetch` when web fetch is enabled for the product/app. +- Do not unregister a tool merely because its selected provider is missing, misconfigured, missing credentials, ambiguous, or temporarily unavailable. +- Resolve the provider at execution time, and return a structured `WebError` when the selected capability cannot run. + +This keeps the model schema stable without making plugin load order, credential state, or HMR timing part of the model-facing contract. If web search is enabled but no usable search provider exists, `web_search` remains visible and execution fails with a structured `WebError` such as `WEB_PROVIDER_UNAVAILABLE` or `WEB_PROVIDER_CONFIGURED_UNAVAILABLE`. If a provider appears after `dsh-tool-web`, the next execution can use it without changing the schema. If a provider disappears mid-call, execution fails with a structured `WebError` instead of silently choosing another provider or falling through to `UNKNOWN_TOOL`. + +The first version's provider-change signal is intentionally small. `web/providers-change` has no payload, carries no capability graph, and does not expose provider metadata. It means only "the provider registry changed; observers may recompute status from `ctx.web`." `searchStatus()` and `fetchStatus()` remain derived, not stored, and they are diagnostics plus execution-resolution inputs rather than tool-schema visibility switches. + +## Package topology + +The three-package interface/implementation/consumer split follows bash and filesystem, but the *interface* package is closer to the LLM seam. `LlmService` (`packages/llm/llm/src/index.ts`) is a name-keyed provider registry: `registerAdapter(models, adapter)` stores adapters in a `Map`, returns a disposer, throws `DUPLICATE_ADAPTER` on duplicate keys, and throws `NO_ADAPTER` at resolution time. `ctx.web` follows that registry shape, but has two capability kinds and one small selection-status layer so diagnostics and execution can explain why a search or fetch capability can or cannot run. + +The dependency direction mirrors bash and filesystem: + +```text +@deepseek-ai/dsh-tool-web --depends on--> @deepseek-ai/dsh-web <--depends on-- @deepseek-ai/dsh-web-search-exa + consumer interface implementation + <--depends on-- @deepseek-ai/dsh-web-search-perplexity + implementation + <--depends on-- @deepseek-ai/dsh-web-fetch-local + implementation +``` + +At runtime, provider packages register capabilities with `ctx.web`; `tool-web` reads capability status and registers stable tools with `ctx.tools`: + +```mermaid +flowchart LR + exa["@deepseek-ai/dsh-web-search-exa"] -->|registerSearchProvider| web["@deepseek-ai/dsh-web / ctx.web"] + perplexity["@deepseek-ai/dsh-web-search-perplexity"] -->|registerSearchProvider| web + fetchLocal["@deepseek-ai/dsh-web-fetch-local"] -->|registerFetchProvider| web + toolWeb["@deepseek-ai/dsh-tool-web"] -->|searchStatus/fetchStatus| web + toolWeb -->|ctx.tools.register| webSearch["tool: web_search"] + toolWeb -->|ctx.tools.register| webFetch["tool: web_fetch"] +``` + +`@deepseek-ai/dsh-web` depends only on Cordis and low-level harness support. It declares `ctx.web`, provider interfaces, request/result types, status types, and error codes. It does not import tool, agent, session, LLM, or provider packages. + +Provider packages depend on `@deepseek-ai/dsh-web` and Cordis. They own credentials, endpoint config, provider-specific request mapping, provider-specific response parsing, and provider-specific error translation into `WebError`. They issue network requests with the platform-native `fetch` (Node 24), mirroring `@deepseek-ai/dsh-llm-deepseek`'s adapter, NOT a cordis HTTP-client service (`ctx.http`/`@cordisjs/plugin-http`) — even where a Perplexity provider's request is shaped like an OpenAI-compatible chat completion, that wire shape is a provider-private detail and does not make the provider depend on `ctx.llm`. + +`@deepseek-ai/dsh-tool-web` depends on `@deepseek-ai/dsh-web`, `@deepseek-ai/dsh-tools`, `@deepseek-ai/dsh-system-prompt`, and Cordis. It never imports concrete provider packages. + +## `ctx.web` contract + +`ctx.web` is a provider registry plus a provider-selecting execution surface. The registry half should stay close to `LlmService`: a `Map` per capability kind, `registerSearchProvider` / `registerFetchProvider` methods that return disposers, duplicate ids that throw `WebError`, and execution-time resolution that throws when the selected provider is absent or unusable. The exact TypeScript signatures belong to the implementation PR, but the seam should expose this shape: + +```ts +interface WebSearchProvider { + readonly id: string + status(): WebProviderStatus + search(request: WebSearchRequest, exec?: WebExecContext): Promise +} + +interface WebFetchProvider { + readonly id: string + status(): WebProviderStatus + fetch(request: WebFetchRequest, exec?: WebExecContext): Promise +} + +interface WebService { + registerSearchProvider(provider: WebSearchProvider): () => void + registerFetchProvider(provider: WebFetchProvider): () => void + + searchStatus(): WebCapabilityStatus + fetchStatus(): WebCapabilityStatus + + search(request: WebSearchRequest, exec?: WebExecContext): Promise + fetch(request: WebFetchRequest, exec?: WebExecContext): Promise +} + +interface WebExecContext { + readonly signal?: AbortSignal +} +``` + +`WebExecContext` is execution control, not business input. The first version should carry only `signal` so `tool-web` can propagate turn cancellation, tool timeout, and agent disposal into provider network requests, SSE readers, and expensive decoding. It should not pass `ToolExecution` through the seam, because that would make `dsh-web` depend on `dsh-tools`. + +`@deepseek-ai/dsh-web` should also declare a Cordis event named `web/providers-change`. Provider ids are stable strings and unique within their capability kind. Registering a duplicate search provider id or duplicate fetch provider id should fail rather than silently replace the old provider. Provider registration returns a disposer, emits `web/providers-change` after successful registration, and emits it again when the provider is disposed. The registry should follow the existing `ctx.tools.register()` / `ctx.systemPrompt.section()` pattern: wrap the mutation in `ctx.effect()`, install the rollback disposer before emitting `web/providers-change`, and let a throwing registration-time change listener roll back the just-added provider instead of leaking it into the registry. + +## Provider status and selection + +Provider status and capability selection are separate concepts, but both stay minimal. A provider reports only whether that concrete implementation is usable by cheap local checks such as credential presence or parseable endpoint config. A provider `status()` must not make network calls. The service reports whether the capability has a selected usable provider, or why execution would fail. + +`LlmService` has no status type at all: availability is expressed as registry membership plus a resolution-time throw. `ctx.web` needs a small status answer because product apps, diagnostics, tests, and execution can report precise provider-selection failures without probing individual providers from the tool layer. Status must be derived from the configured provider id, registered providers, and each provider's cheap local `status()` on each call; it must not be stored as mutable service state. + +`WebCapabilityStatus` stays intentionally small: `available` plus a `reason` discriminant, and the selected `providerId` on the available branch so diagnostics can report which provider won. It does NOT carry the per-reason payload (the unavailable provider id, the ambiguous candidate set, the underlying provider-unavailable reason). That branchable detail lives in the structured `WebError` thrown at execution time, which is the surface callers route on; duplicating it into the status union would give the same fact two homes that can disagree. `searchStatus()` / `fetchStatus()` answer "can this capability run, and if not, in which broad category does it fail" — enough for startup diagnostics and the execution-resolution decision — and the thrown error answers "exactly which provider/ids/reason." + +`WebProviderStatus` is an input to selection, not a health system. `tool-web` reads only the aggregated `searchStatus()` / `fetchStatus()`, never each provider's `status()` directly, so selection policy has one owner. + +```ts +type WebProviderStatus = + | { readonly available: true } + | { readonly available: false; readonly reason: 'missing-credential' | 'misconfigured' } + +type WebCapabilityStatus = + | { readonly available: true; readonly providerId: string } + | { readonly available: false; readonly reason: 'none' | 'configured-missing' | 'configured-unavailable' | 'ambiguous' } +``` + +Selection must not depend on registration order. Cordis load order, config ordering, and HMR timing are not product semantics. + +| Situation | Status / behavior | +|---|---| +| A configured provider id is registered and `status().available === true` | `available: true` for that provider | +| A configured provider id is not registered | `configured-missing`; execution fails with `WEB_PROVIDER_CONFIGURED_MISSING` | +| A configured provider id is registered but unavailable | `configured-unavailable`; execution fails with `WEB_PROVIDER_CONFIGURED_UNAVAILABLE` | +| No provider id is configured and exactly one provider for that kind is registered and available | `available: true` for that single provider | +| No provider id is configured and no provider for that kind is registered | `none`; execution fails with `WEB_PROVIDER_UNAVAILABLE` | +| No provider id is configured and multiple usable providers for that kind are registered | `ambiguous`; execution fails with `WEB_PROVIDER_AMBIGUOUS` rather than choosing by registration order | +| No provider id is configured and providers exist but none are usable | `none`; execution fails with `WEB_PROVIDER_UNAVAILABLE` | + +The "single provider auto-selects" rule is for tests, demos, and simple deployments. Product configs should set explicit provider ids: + +```yaml +- id: web + name: '@deepseek-ai/dsh-web' + config: + searchProvider: exa + fetchProvider: local-http + +- id: web-search-exa + name: '@deepseek-ai/dsh-web-search-exa' + +- id: web-search-perplexity + name: '@deepseek-ai/dsh-web-search-perplexity' + +- id: web-fetch-local + name: '@deepseek-ai/dsh-web-fetch-local' + +- id: tool-web + name: '@deepseek-ai/dsh-tool-web' +``` + +Operational overrides such as environment variables may exist, but they must feed the same explicit selection path. For example, `DSH_WEB_SEARCH_PROVIDER=perplexity` is equivalent to config `searchProvider: perplexity`; it is not a hidden priority chain inside `dsh-tool-web`. + +`ctx.web.search()` and `ctx.web.fetch()` resolve the provider at execution time using the same rules as the status query. If the selected capability is unavailable, they throw `WebError` with a structured code such as `WEB_PROVIDER_UNAVAILABLE`, `WEB_PROVIDER_CONFIGURED_MISSING`, `WEB_PROVIDER_CONFIGURED_UNAVAILABLE`, or `WEB_PROVIDER_AMBIGUOUS`. If no provider is explicitly configured and no usable provider exists, the status and execution error are both the generic `none` / `WEB_PROVIDER_UNAVAILABLE` case; the first version should not add a diagnostic summary of every unavailable provider. + +## Search request and result schema + +The first `web_search` model-facing tool should be small. The only model-facing argument is: + +- `query`: required string. + +`max_results` is NOT exposed to the model in the first version. It is a `dsh-tool-web`-layer decision: the tool sets the result bound — a default of `8` (aligning with OpenCode's Exa default), as an exported constant mirroring `dsh-tool-fs`'s `READ_LIMIT` / `GREP_LIMIT` — and passes it to the seam as `maxResults` on the `WebSearchRequest`. Keeping it off the model schema means the model just asks a question and the product controls how much context comes back; the field can be promoted to a model-facing argument later without breaking the seam. + +`maxResults` flows tool → seam → provider, and the bound is enforced on the way back: + +- `dsh-tool-web` owns the value and puts it on `WebSearchRequest.maxResults`. +- `ctx.web` passes the request through to the selected provider unchanged. +- A provider should apply `maxResults` at the request layer when its API supports it (Exa's `numResults`), as a cost/latency optimization. +- `ctx.web` enforces the bound on the result: if a provider returns more than `maxResults` sources — because its API has no result-count control (Perplexity) or ignored the hint — the seam truncates `sources[]` to `maxResults` and sets `WebSearchResult.truncated` to `true` before returning. This makes the bound a single cross-provider guarantee the model-facing layer can rely on, rather than something each provider must remember to honor. + +The seam request should not include provider-specific controls such as Perplexity model selection, search recency, domain filters, Exa `livecrawl`, Exa `type`, regional hints, generated-answer budgets, or search depth in the first version. Those fields should be added only when they have provider-neutral semantics that both the tool schema and selected providers can honor honestly. + +```ts +interface WebSearchRequest { + readonly query: string + /** Upper bound on returned sources; the seam truncates to it. Omitted = no bound. `dsh-tool-web` always sets it. */ + readonly maxResults?: number +} + +interface WebSearchResult { + readonly providerId: string + readonly query: string + readonly content?: string + readonly sources: readonly WebSearchSource[] + readonly truncated: boolean +} + +interface WebSearchSource { + readonly url: string + readonly title?: string + readonly snippet?: string + readonly publishedAt?: string +} +``` + +`content` is optional provider-generated answer text, search context, or summary. `sources[]` is the portable citation surface. A source always has a URL; title, snippet, and `publishedAt` are optional because not every provider returns them. `title` should not be required: Perplexity-style citations may provide only URLs, and forcing adapters to invent titles would make the seam lie. `dsh-tool-web` can render `title ?? hostname(url)` for display. `publishedAt` is an optional publication/crawl timestamp as an ISO-8601 string — Exa returns it as `publishedDate` on each result and Perplexity returns a `date` on search results, so it is real provider data, not derived; the seam carries it as a string and leaves date parsing to the consumer. + +Exa search should map each entry of the provider's flat `results[]` into a `WebSearchSource`: `url` ← `url`, `title` ← `title`, `snippet` ← the first `highlights[]` entry (an entry with no highlight has no portable snippet and is dropped), `publishedAt` ← `publishedDate`. Exa returns no provider-generated answer, so `content` is omitted. Perplexity search should map `choices[0].message.content` to `content` and prefer the structured top-level `search_results[]` for `sources[]` — `url` ← `url`, `title` ← `title`, `snippet` ← `snippet` (often empty), `publishedAt` ← `date` — falling back to the URL-only `citations[]` array only when `search_results` is absent (those sources carry just a `url`). If a provider returns fewer structured fields than the seam supports, the adapter omits those optional fields. + +Full page retrieval remains the job of `web_fetch(url)`. Search snippets are discovery context, not fetched page bodies. + +## Fetch request and result schema + +The first `web_fetch` implementation should be an anonymous public HTTP(S) fetch provider, likely `local-http`. It should fetch bytes from a concrete URL, apply the basic transport hygiene below (http/https-only, credential rejection, byte/time caps, cross-origin redirect blocking), decode textual content, and return only the minimal model-useful result: final URL, status code, body, and truncation. It should not carry browser cookies, editor credentials, git credentials, internal auth tokens, or implicit access to private services. (Full SSRF / private-network blocking is deferred — see [Deferred work](#deferred-work).) + +The first seam request should stay smaller than OpenCode's model-facing tool: + +- `url`: required HTTP(S) URL. +- `timeoutMs`: optional positive number capped by the provider. + +The seam request deliberately does not include `format`, `prompt`, or provider-specific extraction controls. `format` is a presentation decision over a fetched resource; `prompt` is a higher-level LLM summarization instruction; extraction APIs such as Firecrawl, Exa, Tavily, or Parallel may not expose a concrete HTTP response. If the product later needs provider-backed page extraction, add a separate `web_extract` capability or explicitly widen this RFC before implementation. Do not smuggle extract semantics into `web_fetch` by making every HTTP field optional. + +HTTP status is part of the fetched resource state, not automatically a tool failure. A successful network fetch of a `404` or `500` response should return `WebFetchResult` with the status code and a bounded decoded body when the content type is supported. `WebError` is for failures to safely retrieve or represent the resource: invalid or blocked URL, redirect policy violation, timeout, abort, response too large, unsupported content type, provider failure, or network failure. + +```ts +interface WebFetchRequest { + readonly url: string + readonly timeoutMs?: number +} + +interface WebFetchResult { + readonly providerId: string + readonly url: string + readonly statusCode: number + readonly body: WebFetchBody + readonly truncated: boolean +} + +type WebFetchBody = + | { readonly kind: 'html'; readonly content: string } + | { readonly kind: 'text'; readonly content: string } +``` + +`WebFetchResult.url` is the final URL after allowed redirects. The request URL is already present in `WebFetchRequest`, so the first version should not add separate `requestedUrl` and `finalUrl` fields. + +`WebFetchBody` is a CLOSED discriminated union owned by `dsh-web`, not a merge-extensible map. The merge-extensible pattern (`ContentBlockMap`) exists for variants that independent plugins introduce and the seam cannot foresee; body kinds are not that — `dsh-web` declares the kind, the fetch provider decodes it, and `dsh-tool-web` renders it, so a new kind is a coordinated change across three known packages, not a plugin extension. Keeping it closed buys compile-time exhaustiveness: consumers `switch` on `kind` ending in `default: assertNever(body, …)`, so adding a kind breaks compilation at every consumer that must render it (e.g. `tool-web`'s `html`→markdown vs `text` passthrough) until that arm is written. Each arm stays its own object literal even when the fields coincide today, leaving room for arm-specific fields (a future `pdf` body's `pageCount`, a `json` body's parsed value) without reshaping the type. Since the harness is unreleased, extending this closed union later is free (no migration, no compat shim). + +The provider owns safe resource retrieval: URL validation, HTTP transport, redirect policy, timeout, abort propagation, byte caps, charset decoding, content-type classification, and binary rejection. `dsh-tool-web` owns presentation: HTML-to-markdown, HTML-to-text, truncation formatting for the model, and future summaries. + +The fetch provider must define resource controls before the tool ships: + +- Accept only `http:` and `https:` URLs. +- Reject credentials in URLs. +- Enforce maximum URL length, response byte cap, decoded body character cap, timeout, and redirect hop cap. +- Propagate abort signals through network fetches and expensive decoding. +- Automatically follow only same-origin redirects. +- Fail cross-origin redirects with `WEB_REDIRECT_BLOCKED`, requiring a fresh tool call and therefore a fresh provider/permission decision. (Claude Code's WebFetch uses this same model — it does not auto-follow a cross-host redirect; it returns the redirect target to the model for a fresh call.) +- Use an explicit product user agent rather than silently impersonating a browser by default. + +SSRF / private-network protection (blocking private, loopback, link-local, multicast, and otherwise non-public destinations, with DNS-resolve-then-validate to defeat rebinding and per-hop re-validation on redirects) is **deferred** — see [Deferred work](#deferred-work). Until it lands, `web_fetch` is an SSRF primitive and must not be enabled in a deployment that can reach sensitive internal network targets. + +## Tool consumer behavior + +`dsh-tool-web` owns two `ToolDefinition`s: `web_search` and `web_fetch`. It owns model-facing JSON schemas, snake_case argument names, prompt sections, result rendering to `ContentBlock[]`, `presentCall`, and `presentResult`. + +`dsh-tool-web` must not enumerate providers or call provider `status()` directly. Its execution path is `ctx.web.search()` / `ctx.web.fetch()`, and any optional startup diagnostics should read only `ctx.web.searchStatus()` / `ctx.web.fetchStatus()`. That keeps provider selection in one layer; otherwise the tool package could decide one provider is usable while execution resolves a different state. + +Tool registration in the first version is a minimal stable sync: + +1. On plugin startup, read the product/app config that enables or disables web search and web fetch. +2. If web search is enabled, register `web_search` and keep that tool's disposer. +3. If web fetch is enabled, register `web_fetch` and keep that tool's disposer. +4. Do not dispose either tool merely because `ctx.web.searchStatus()` or `ctx.web.fetchStatus()` is unavailable. +5. Dispose registered tools when the `tool-web` fiber is disposed. + +Provider status changes affect execution results and diagnostics, not whether the model-facing schema exists. If a product wants no web tools at all, it disables `dsh-tool-web` or the individual web tool in config; if it wants web tools but the backend is misconfigured, the model sees a structured tool error at execution time. + +Prompt guidance should explain the semantic split: use `web_search` for discovery and current information, then use `web_fetch` when the model needs the content of a specific URL. The prompt and tool result should tell the model to cite relevant URLs with markdown links. + +The model-facing output should be text-first because current tool results are `ContentBlock[]`, but the seam outcome should stay structured so UI presentation and future adapters do not have to scrape rendered text. + +## Errors + +`dsh-web` should define `WebError extends HarnessError` with stable codes. Initial codes should include only states that callers may reasonably branch on: + +- `WEB_PROVIDER_UNAVAILABLE` +- `WEB_PROVIDER_CONFIGURED_MISSING` +- `WEB_PROVIDER_CONFIGURED_UNAVAILABLE` +- `WEB_PROVIDER_AMBIGUOUS` +- `WEB_DUPLICATE_PROVIDER` +- `WEB_INVALID_URL` +- `WEB_BLOCKED_URL` +- `WEB_REDIRECT_BLOCKED` +- `WEB_FETCH_TOO_LARGE` +- `WEB_FETCH_TIMEOUT` +- `WEB_ABORTED` +- `WEB_UNSUPPORTED_CONTENT_TYPE` +- `WEB_PROVIDER_ERROR` + +`WEB_DUPLICATE_PROVIDER` is thrown synchronously from `registerSearchProvider` / `registerFetchProvider` when an id is already registered for that capability kind (the analogue of `LlmService`'s `DUPLICATE_ADAPTER`); it is a registration-time programming error, not an execution outcome, but shares the `WebError` code space so callers see one taxonomy. `WEB_PROVIDER_ERROR` is the catch-all for a provider's own failure surfaced through the seam, including network/transport failure in `web-fetch-local` (DNS, connection refused, TLS); the first version does not split out a separate `WEB_NETWORK` code, but the provider should set a descriptive message so the model and logs can tell a network failure from a provider API failure. + +Tool execution should let these errors flow through `ToolRegistry.execute()`, which already converts `HarnessError` into an error tool result with structured metadata. The model gets a readable error message; hooks, tests, and UI code can route on the stable code. + +## Tests + +Tests should prove the seam contract without turning this RFC into an implementation checklist. + +`dsh-web` tests cover provider registration and disposal, duplicate provider ids, `web/providers-change` emission, rollback when a registration-time `web/providers-change` listener throws, `searchStatus()` and `fetchStatus()` for the selection table above, execution-time provider resolution, `maxResults` truncation of `sources[]` with `truncated` set when a provider over-returns, abort propagation through `WebExecContext.signal`, and structured `WebError` codes. + +Search provider tests cover request mapping, response parsing into `content` plus `sources[]`, missing credentials, provider errors, timeout/abort, truncation, and a self-skipping with-key smoke test for each real provider. Perplexity fixtures must include URL-only citations so the optional source fields stay honest. + +`dsh-web-fetch-local` tests cover real HTTP behavior using a local test server: valid text and HTML fetches, non-2xx HTTP responses returned as results, byte/decoded-body caps, timeout, abort, invalid URLs, credential-in-URL rejection, cross-origin redirect blocking, unsupported content types, and product user agent. (Private-destination/SSRF blocking tests come with that deferred work.) + +`dsh-tool-web` tests execute through the real tool registry. They verify schema registration follows product/app tool enablement rather than provider availability, unavailable or ambiguous providers produce structured execution errors, argument validation, formatting of successful search/fetch results, structured error propagation, and cleanup on disposal. + +Integration tests should load the real seam, provider, and tool packages together and execute through `ctx.tools.execute()` rather than calling providers directly. If wiring the tools into an ACP-facing example changes editor-visible transcripts, add or update the relevant snapshot scenario in the same change. + +At least one test must drive these packages through their REAL cordis Loader/export path, not a hand-built `ctx.plugin({...})` mount, so a broken export shape is caught (see [docs/postmortem/0001](../../../postmortem/0001-acp-default-export-drops-inject.md) and `packages/AGENTS.md` § plugin-export-shape). The two shapes need different guards: `dsh-web` and the provider packages are **services** (`export default` the class) and a stray extra export would surface as a missing service; `dsh-tool-web` is a **namespace plugin** (named `name`/`inject`/`apply`, NO default), and because it has `inject`, a stray `export default apply` makes `unwrapExports` drop the `inject` and the plugin throws `cannot get property … without inject` the moment it loads — so a Loader smoke that boots tool-web over `ctx.web` catches it. Prove the guard bites: add `export default apply` to `tool-web`, watch the smoke go red, revert. + +## Migration plan + +This is new capability work, so no compatibility migration is required while the harness is unreleased. + +Land the work in seam order: + +1. Add `packages/web/web` with `ctx.web`, provider registration, provider status, capability status, selection, request/result/error types, and contract tests. +2. Add `packages/web/web-search-exa` with parser/unit tests and a self-skipping real-provider smoke test. +3. Add `packages/web/web-search-perplexity` with parser/unit tests and a self-skipping real-provider smoke test. +4. Add `packages/web/web-fetch-local` with local HTTP behavior tests. +5. Add `packages/web/tool-web` with config-driven tool registration, prompt sections, model formatting, presentation, and tool-registry tests. +6. Wire product app/example configs only after package behavior is stable, because tool schemas and prompt sections affect agent behavior and snapshots. +7. Update `docs/architecture.md`, `packages/README.md`, package READMEs, generated Cordis catalogs if new events/services are added, and maintenance scripts. + +## Alternatives considered + +### Let each provider register its own model-facing tool + +This matches the most flexible provider-plugin systems: every provider can expose its full native schema. It is rejected for the harness because it gives provider packages ownership of model-facing names, descriptions, prompt guidance, and result formatting. Multiple search providers would produce duplicate tool names or provider-specific tool names, and the model would learn backend details instead of a stable product capability. + +### Put provider dispatch directly in `dsh-tool-web` + +This resembles OpenCode's local web search: one stable `websearch` tool dispatches to Exa or Parallel internally. It is acceptable for a small product path but wrong as a harness foundation. The tool package would own provider selection, credentials, request mapping, transport, response parsing, and presentation, making it hard to add Exa and Perplexity without baking their differences into the tool schema. + +### Split search and fetch into two seams (`dsh-search`, `dsh-fetch`) + +Tempting because the two halves share no request schema and no business logic, so each would map cleanly onto the bash/fs three-package template, and the `Search`/`Fetch` method-pair duplication on `WebService` would disappear. Rejected because the shared machinery — provider-id registry, registration-order-independent selection policy, abort propagation, the `WebError` taxonomy, and the product-facing "how this harness reaches the web" config surface — is real and would otherwise be duplicated across two near-identical seams. One `ctx.web` middle layer gives the product a single thing to inject and configure and gives provider selection one owner. The price is the parallel `searchX`/`fetchX` method pairs, which is accepted deliberately. + +### Choose the first registered provider + +Rejected. Registration order is not a product policy. It can change with config order, plugin loading, HMR, or refactors. Provider selection must be explicit, or automatic only when exactly one usable provider exists. + +### Treat Firecrawl/Exa/Tavily/Parallel extraction as fetch + +Rejected for the first version. Those providers often return extracted or summarized content rather than a concrete HTTP response. If the product needs extraction, design `web_extract` or deliberately widen the fetch seam later. + +### Mirror Claude Code's `url + prompt` WebFetch shape + +Rejected for the seam. `prompt` turns fetch into LLM summarization and couples public-web retrieval to a model provider. The harness seam should fetch and decode deterministically; `dsh-tool-web` can later offer summaries as a presentation mode without making `ctx.web` depend on `ctx.llm`. + +## Risks + +**The search schema may be too thin.** Exa and Perplexity both expose useful provider-specific controls. The first version should resist adding them until they can be defined provider-neutrally and enforced honestly by both tool registration and provider execution. + +**Perplexity citations may be sparse.** A citation may be only a URL. Making `title` and `snippet` optional keeps the seam truthful but means `tool-web` must render useful fallback labels. + +**Stable tool registration can defer misconfiguration to execution.** Keeping the tool visible is correct when the product enabled web access, but product apps that expect web search should surface `configured-missing`, `configured-unavailable`, and `ambiguous` loudly during startup diagnostics so users do not discover setup problems only after the model calls the tool. + +**Provider state can change after startup.** A tool can be visible in the request assembled at step start and lose its provider before execution. The execution path must resolve again and fail with a structured error. + +**Fetch is a network boundary, not just a read-only tool.** `web_fetch` can still reach sensitive network targets or exfiltrate data through URLs. The first version ships only the basic transport hygiene (http/https-only, credential rejection, byte/time caps, cross-origin redirect blocking); SSRF / private-network blocking is deferred (see [Deferred work](#deferred-work)), so until it lands `web_fetch` must not be enabled where it can reach internal targets. + +**Large web content can damage context quality.** Providers must enforce byte/character caps and report `truncated`; `tool-web` must format bounded model output with clear continuation or follow-up guidance. + +## Deferred work + +- SSRF / private-network protection for `web_fetch`: block private, loopback, link-local, multicast, and otherwise non-public destinations so `web_fetch` is not an SSRF primitive. Doing it correctly is more than a URL-string check — it needs DNS-resolve-then-connect-to-the-validated-IP (to defeat DNS rebinding / TOCTOU), per-hop re-validation across redirects, and IPv6 edge handling (private ranges, IPv4-mapped addresses). Neither reference implementation surveyed does IP-level blocking (OpenCode does a prefix check then fetches; Claude Code relies on a centralized hostname blocklist plus a "private URLs will fail" prompt), so there is no implementation to copy and this is the harness's only SSRF defense — it warrants its own focused design/spike. Until it lands, `web_fetch` must only be enabled in deployments that cannot reach sensitive internal targets. +- A `pdf` `WebFetchBody` kind: the `local-http` provider decodes text-extractable PDFs (best-effort, capped, `truncated`) into a `{ kind: 'pdf'; content; pageCount? }` arm, and `tool-web` renders it. This is fetch, not `web_extract` — PDF retrieval is a concrete HTTP 200 plus deterministic local decoding, not provider-side extraction of a non-HTTP resource. Adding it is a coordinated change across `dsh-web` (declare the arm), the provider (decode + narrow "binary rejection" to "reject binary except text-extractable PDF"; scanned/image PDFs needing OCR stay out of scope), and `tool-web` (render). The closed `WebFetchBody` union makes the consumer side fail to compile until the new arm is handled. +- Provider-backed extraction as a separate `web_extract` capability, rather than widening `web_fetch` silently. +- Permission policy integration once the deferred permission system lands. +- Provider-neutral search controls beyond `query` and `maxResults`, once Exa and Perplexity can both honor them honestly. + +## Open questions + +- Should product app packages treat `configured-missing`, `configured-unavailable`, and `ambiguous` as fatal startup errors when web is explicitly configured, or should `dsh-web` only report status and let apps decide? +- Where should permission policy for public web access live once the deferred permission system lands: a dedicated web permission plugin on `tools/execute`, provider config, or both? From d01f5f73b7866b457f00ffbe60b78af39273fc7a Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Thu, 25 Jun 2026 15:04:12 +0800 Subject: [PATCH 02/32] Add web capability seam: ctx.web, search/fetch providers, web tools Introduce web access as a first-class capability seam so the model-facing web tools stay stable while backends change. dsh-web owns ctx.web as a provider registry with registration-order-independent selection and the WebError taxonomy; dsh-web-search-exa, dsh-web-search-perplexity, and dsh-web-fetch-local register capabilities into it; dsh-tool-web is the sole owner of the model-facing web_search/web_fetch schemas, prompt sections, and HTML-to-markdown presentation. Search and fetch are deliberately one seam. Providers ship as namespace plugins that register into ctx.web (like an LlmAdapter into ctx.llm), not key-owning services, since multiple search providers cannot each own the key. Tool registration follows product enablement, not backend availability, so load order/credentials never enter the model contract; the seam resolves the provider at execution time and surfaces a structured WebError otherwise. Moves the RFC to implemented/ amended to match what shipped. Example/app configs are intentionally not wired yet (RFC migration step 6). --- .gitignore | 3 + docs/architecture.md | 7 + docs/rfc/README.md | 2 +- .../2026-06-24-web-capability-seam.md | 14 +- knip.json | 8 + packages/README.md | 11 + packages/web/README.md | 15 + packages/web/tool-web/README.md | 30 ++ packages/web/tool-web/package.json | 42 +++ packages/web/tool-web/src/fetch.ts | 87 ++++++ packages/web/tool-web/src/html.ts | 85 ++++++ packages/web/tool-web/src/index.ts | 59 ++++ packages/web/tool-web/src/search.ts | 105 +++++++ .../web/tool-web/tests/integration.spec.ts | 99 ++++++ packages/web/tool-web/tests/load-path.spec.ts | 49 +++ packages/web/tool-web/tests/tool-web.spec.ts | 281 ++++++++++++++++++ packages/web/tool-web/tsconfig.json | 17 ++ packages/web/tool-web/tsdown.config.ts | 18 ++ packages/web/web-fetch-local/README.md | 34 +++ packages/web/web-fetch-local/package.json | 33 ++ packages/web/web-fetch-local/src/index.ts | 77 +++++ packages/web/web-fetch-local/src/policy.ts | 59 ++++ packages/web/web-fetch-local/src/provider.ts | 233 +++++++++++++++ .../web-fetch-local/tests/fetch-local.spec.ts | 239 +++++++++++++++ packages/web/web-fetch-local/tsconfig.json | 24 ++ packages/web/web-search-exa/README.md | 23 ++ packages/web/web-search-exa/package.json | 33 ++ packages/web/web-search-exa/src/index.ts | 48 +++ packages/web/web-search-exa/src/provider.ts | 130 ++++++++ packages/web/web-search-exa/src/types.ts | 36 +++ packages/web/web-search-exa/tests/exa.e2e.ts | 19 ++ packages/web/web-search-exa/tests/exa.spec.ts | 193 ++++++++++++ packages/web/web-search-exa/tsconfig.json | 24 ++ packages/web/web-search-perplexity/README.md | 24 ++ .../web/web-search-perplexity/package.json | 33 ++ .../web/web-search-perplexity/src/index.ts | 52 ++++ .../web/web-search-perplexity/src/provider.ts | 138 +++++++++ .../web/web-search-perplexity/src/types.ts | 41 +++ .../tests/perplexity.e2e.ts | 23 ++ .../tests/perplexity.spec.ts | 192 ++++++++++++ .../web/web-search-perplexity/tsconfig.json | 24 ++ packages/web/web/README.md | 45 +++ packages/web/web/package.json | 33 ++ packages/web/web/src/index.ts | 270 +++++++++++++++++ packages/web/web/src/types.ts | 225 ++++++++++++++ packages/web/web/tests/web.spec.ts | 263 ++++++++++++++++ packages/web/web/tsconfig.json | 24 ++ pnpm-lock.yaml | 86 ++++++ tsconfig.base.json | 3 + tsconfig.build.json | 5 + 50 files changed, 3610 insertions(+), 8 deletions(-) rename docs/rfc/{proposed => implemented}/architecture/2026-06-24-web-capability-seam.md (96%) create mode 100644 packages/web/README.md create mode 100644 packages/web/tool-web/README.md create mode 100644 packages/web/tool-web/package.json create mode 100644 packages/web/tool-web/src/fetch.ts create mode 100644 packages/web/tool-web/src/html.ts create mode 100644 packages/web/tool-web/src/index.ts create mode 100644 packages/web/tool-web/src/search.ts create mode 100644 packages/web/tool-web/tests/integration.spec.ts create mode 100644 packages/web/tool-web/tests/load-path.spec.ts create mode 100644 packages/web/tool-web/tests/tool-web.spec.ts create mode 100644 packages/web/tool-web/tsconfig.json create mode 100644 packages/web/tool-web/tsdown.config.ts create mode 100644 packages/web/web-fetch-local/README.md create mode 100644 packages/web/web-fetch-local/package.json create mode 100644 packages/web/web-fetch-local/src/index.ts create mode 100644 packages/web/web-fetch-local/src/policy.ts create mode 100644 packages/web/web-fetch-local/src/provider.ts create mode 100644 packages/web/web-fetch-local/tests/fetch-local.spec.ts create mode 100644 packages/web/web-fetch-local/tsconfig.json create mode 100644 packages/web/web-search-exa/README.md create mode 100644 packages/web/web-search-exa/package.json create mode 100644 packages/web/web-search-exa/src/index.ts create mode 100644 packages/web/web-search-exa/src/provider.ts create mode 100644 packages/web/web-search-exa/src/types.ts create mode 100644 packages/web/web-search-exa/tests/exa.e2e.ts create mode 100644 packages/web/web-search-exa/tests/exa.spec.ts create mode 100644 packages/web/web-search-exa/tsconfig.json create mode 100644 packages/web/web-search-perplexity/README.md create mode 100644 packages/web/web-search-perplexity/package.json create mode 100644 packages/web/web-search-perplexity/src/index.ts create mode 100644 packages/web/web-search-perplexity/src/provider.ts create mode 100644 packages/web/web-search-perplexity/src/types.ts create mode 100644 packages/web/web-search-perplexity/tests/perplexity.e2e.ts create mode 100644 packages/web/web-search-perplexity/tests/perplexity.spec.ts create mode 100644 packages/web/web-search-perplexity/tsconfig.json create mode 100644 packages/web/web/README.md create mode 100644 packages/web/web/package.json create mode 100644 packages/web/web/src/index.ts create mode 100644 packages/web/web/src/types.ts create mode 100644 packages/web/web/tests/web.spec.ts create mode 100644 packages/web/web/tsconfig.json diff --git a/.gitignore b/.gitignore index b52f86cd61..2788817b23 100644 --- a/.gitignore +++ b/.gitignore @@ -11,6 +11,9 @@ examples/*/.sessions/ coverage/ .doc-typecheck-*/ .humanize/ +tmp/ +.claude/commands/ +.claude/settings.json .vscode/ .DS_Store .idea diff --git a/docs/architecture.md b/docs/architecture.md index c76d8f7ba4..dbaf76cd3f 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -24,6 +24,9 @@ For a catalog of the **data structures** this architecture moves around — the │ @deepseek-ai/dsh-agent-loop (the ONE concrete plugin) │ │ @deepseek-ai/dsh-bash-local (bash impl) │ │ @deepseek-ai/dsh-tool-bash (bash tool schemas) │ +│ @deepseek-ai/dsh-web-search-exa (web search impl) │ +│ @deepseek-ai/dsh-web-fetch-local (web fetch impl) │ +│ @deepseek-ai/dsh-tool-web (web tool schemas) │ │ @deepseek-ai/dsh-session-persistence-jsonl (persistence impl)│ ├─────────────────────────────────────────────────────────────┤ │ @deepseek-ai/dsh-agent (vocabulary + registry) │ @@ -33,6 +36,7 @@ For a catalog of the **data structures** this architecture moves around — the │ @deepseek-ai/dsh-session-persistence (persistence seam) │ │ @deepseek-ai/dsh-llm (abstract model service) │ │ @deepseek-ai/dsh-bash (abstract bash executor) │ +│ @deepseek-ai/dsh-web (abstract web access) │ ├─────────────────────────────────────────────────────────────┤ │ vendor/: cordis, loader, include, group, timer, hmr, │ │ logger-console, cosmokit, schemastery │ @@ -54,6 +58,7 @@ Dependency rule: **extension** plugins depend on interface packages, never on `d | `ctx.agentLoop` | `AgentLoop` | dsh-agent-loop | creates `ReactLoopAgent`s and drives their loops | | `ctx.bash` | `BashExecutor` (abstract) | dsh-bash | bash execution seam: foreground runs + background tasks | | `ctx.compact` | `CompactService` (abstract) | dsh-compact | compaction seam: decide when history is too large, summarize an older range into a single surface node | +| `ctx.web` | `WebService` | dsh-web | web access seam: search/fetch provider registries, registration-order-independent selection, the `WebError` taxonomy | All registrations (`registerAdapter`, `section`, `tools`, `register`, …) go through `ctx.effect()` and return disposers, so plugin hot-reload (vendored HMR) and fiber disposal clean up automatically. @@ -69,6 +74,8 @@ Swappable capabilities are split into **three packages** so each part evolves in The LLM seam has the same topology folded differently: `dsh-llm` carries the interface (`LlmAdapter`) AND the consumer surface (`ctx.llm.stream()`), with adapters as implementation packages — there the consumer is the loop itself, not a swappable schema surface. Use the full three-package split when the consumer is independently replaceable; keep interface + consumer together when they are one concern. Don't split preemptively: a capability with one conceivable implementation and one consumer stays one package until proven otherwise. +The web capability uses the same three-package split but folds two capabilities onto one seam: `dsh-web` owns the abstract `ctx.web` service, which is a provider REGISTRY (`registerSearchProvider`/`registerFetchProvider`, registration-order-independent selection, the `WebError` taxonomy) rather than a single backend. Providers register capabilities, not tools — `dsh-web-search-exa`, `dsh-web-search-perplexity`, and `dsh-web-fetch-local` each register into `ctx.web` the way an `LlmAdapter` registers into `ctx.llm`, so they are namespace plugins (`inject: ['web']`), not key-owning services. `dsh-tool-web` is the single consumer that owns the model-facing `web_search`/`web_fetch` schemas, prompt sections, and presentation; it reads only the aggregated `ctx.web.searchStatus()`/`fetchStatus()` and executes through `ctx.web.search()`/`fetch()`, so provider selection has one owner. Search and fetch are deliberately one seam (one thing to inject and configure, one selection policy, one abort/error vocabulary) despite sharing no request schema — see the [web capability seam RFC](rfc/implemented/architecture/2026-06-24-web-capability-seam.md). + > **"Capability" — two unrelated meanings.** (1) The *seam pattern* above ("one plugin provides a capability, another needs it") is realized by plain Cordis **services + `inject`**: a provider registers a service (`ctx.bash`, declared in `interface Context`); a consumer declares `inject: ['bash']` and its fiber stays pending until the service exists, tearing down via HMR if it later vanishes. No extra library is needed. (2) `@cordisjs/plugin-capability` is a different axis entirely — a **permission/capability-security** service (named permissions with inheritance/dependency, tested against a session via `ctx.capability.test`). It is a candidate for the deferred permissions/sandbox work (the `tools/execute` veto seam), NOT a mechanism for swapping implementations. ## The vocabulary (dsh-llm) diff --git a/docs/rfc/README.md b/docs/rfc/README.md index 73a2675caa..ab3e97e4bc 100644 --- a/docs/rfc/README.md +++ b/docs/rfc/README.md @@ -59,7 +59,6 @@ Do NOT write one for a mechanical or local choice (a variable name, a one-file r |---|---| | [Runtime schemas for the event vocabulary (Zod vs the merge-extensible-map pattern)](proposed/architecture/2026-06-16-typed-event-schemas.md) | 2026-06-16 | | [Extract a generic long-running tool runtime](proposed/architecture/2026-06-20-generic-long-running-tool-runtime.md) | 2026-06-20 | -| [Web capability seam - provider registry and model-facing web tools](proposed/architecture/2026-06-24-web-capability-seam.md) | 2026-06-24 | ### Process @@ -120,6 +119,7 @@ Do NOT write one for a mechanical or local choice (a variable name, a one-file r | [Reorganize packages into a modular hierarchy](implemented/architecture/2026-06-20-package-hierarchy.md) | 2026-06-20 | | [Branded IDs everywhere they belong](implemented/architecture/2026-06-20-branded-ids.md) | 2026-06-20 | | [Extract example apps into packages](implemented/architecture/2026-06-20-extract-example-app-packages.md) | 2026-06-20 | +| [Web capability seam — provider registry and model-facing web tools](implemented/architecture/2026-06-24-web-capability-seam.md) | 2026-06-24 | ### Process diff --git a/docs/rfc/proposed/architecture/2026-06-24-web-capability-seam.md b/docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md similarity index 96% rename from docs/rfc/proposed/architecture/2026-06-24-web-capability-seam.md rename to docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md index e97e8380da..3b9fb166d0 100644 --- a/docs/rfc/proposed/architecture/2026-06-24-web-capability-seam.md +++ b/docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md @@ -1,6 +1,6 @@ # RFC: Web capability seam - stable tools over multiple providers -Status: proposed +Status: implemented ## Problem @@ -64,7 +64,7 @@ flowchart LR `@deepseek-ai/dsh-web` depends only on Cordis and low-level harness support. It declares `ctx.web`, provider interfaces, request/result types, status types, and error codes. It does not import tool, agent, session, LLM, or provider packages. -Provider packages depend on `@deepseek-ai/dsh-web` and Cordis. They own credentials, endpoint config, provider-specific request mapping, provider-specific response parsing, and provider-specific error translation into `WebError`. They issue network requests with the platform-native `fetch` (Node 24), mirroring `@deepseek-ai/dsh-llm-deepseek`'s adapter, NOT a cordis HTTP-client service (`ctx.http`/`@cordisjs/plugin-http`) — even where a Perplexity provider's request is shaped like an OpenAI-compatible chat completion, that wire shape is a provider-private detail and does not make the provider depend on `ctx.llm`. +Provider packages depend on `@deepseek-ai/dsh-web` and Cordis. They own credentials, endpoint config, provider-specific request mapping, provider-specific response parsing, and provider-specific error translation into `WebError`. They issue network requests with the platform-native `fetch` (Node 24), mirroring `@deepseek-ai/dsh-llm-deepseek`'s adapter, NOT a cordis HTTP-client service (`ctx.http`/`@cordisjs/plugin-http`) — even where a Perplexity provider's request is shaped like an OpenAI-compatible chat completion, that wire shape is a provider-private detail and does not make the provider depend on `ctx.llm`. A provider does NOT own the `ctx.web` key (two search providers cannot both own it): like `dsh-llm-deepseek`, each provider package is a function/namespace plugin (`inject: ['web']`) whose `apply` constructs the backend and calls `ctx.web.registerSearchProvider` / `registerFetchProvider`. `@deepseek-ai/dsh-web` is the `export default` service that owns the key. `@deepseek-ai/dsh-tool-web` depends on `@deepseek-ai/dsh-web`, `@deepseek-ai/dsh-tools`, `@deepseek-ai/dsh-system-prompt`, and Cordis. It never imports concrete provider packages. @@ -267,11 +267,11 @@ SSRF / private-network protection (blocking private, loopback, link-local, multi Tool registration in the first version is a minimal stable sync: -1. On plugin startup, read the product/app config that enables or disables web search and web fetch. -2. If web search is enabled, register `web_search` and keep that tool's disposer. -3. If web fetch is enabled, register `web_fetch` and keep that tool's disposer. +1. On plugin startup, read the `dsh-tool-web` `Config` (`search?: boolean`, `fetch?: boolean`, both default `true`) that enables or disables each web tool. +2. If web search is enabled, register `web_search` (its disposer is fiber-scoped via the effect-based registry). +3. If web fetch is enabled, register `web_fetch` (likewise fiber-scoped). 4. Do not dispose either tool merely because `ctx.web.searchStatus()` or `ctx.web.fetchStatus()` is unavailable. -5. Dispose registered tools when the `tool-web` fiber is disposed. +5. Disposing the `tool-web` fiber tears down its registrations automatically. Provider status changes affect execution results and diagnostics, not whether the model-facing schema exists. If a product wants no web tools at all, it disables `dsh-tool-web` or the individual web tool in config; if it wants web tools but the backend is misconfigured, the model sees a structured tool error at execution time. @@ -315,7 +315,7 @@ Search provider tests cover request mapping, response parsing into `content` plu Integration tests should load the real seam, provider, and tool packages together and execute through `ctx.tools.execute()` rather than calling providers directly. If wiring the tools into an ACP-facing example changes editor-visible transcripts, add or update the relevant snapshot scenario in the same change. -At least one test must drive these packages through their REAL cordis Loader/export path, not a hand-built `ctx.plugin({...})` mount, so a broken export shape is caught (see [docs/postmortem/0001](../../../postmortem/0001-acp-default-export-drops-inject.md) and `packages/AGENTS.md` § plugin-export-shape). The two shapes need different guards: `dsh-web` and the provider packages are **services** (`export default` the class) and a stray extra export would surface as a missing service; `dsh-tool-web` is a **namespace plugin** (named `name`/`inject`/`apply`, NO default), and because it has `inject`, a stray `export default apply` makes `unwrapExports` drop the `inject` and the plugin throws `cannot get property … without inject` the moment it loads — so a Loader smoke that boots tool-web over `ctx.web` catches it. Prove the guard bites: add `export default apply` to `tool-web`, watch the smoke go red, revert. +At least one test must drive these packages through their REAL cordis Loader/export path, not a hand-built `ctx.plugin({...})` mount, so a broken export shape is caught (see [docs/postmortem/0001](../../../postmortem/0001-acp-default-export-drops-inject.md) and `packages/AGENTS.md` § plugin-export-shape). The two shapes need different guards: `dsh-web` is a **service** (`export default` the class) and a stray extra export would surface as a missing service; the provider packages and `dsh-tool-web` are **namespace plugins** (named `name`/`inject`/`apply`, NO default), and because each has `inject`, a stray `export default apply` makes `unwrapExports` drop the `inject` and the plugin throws `cannot get property … without inject` the moment it loads — so a Loader smoke that boots tool-web over `ctx.web` catches it (and each provider's registration test mounts it the real way and asserts no default export). Prove the guard bites: add `export default apply` to `tool-web`, watch the smoke go red, revert. ## Migration plan diff --git a/knip.json b/knip.json index 67d99a861d..3f0a56097c 100644 --- a/knip.json +++ b/knip.json @@ -29,6 +29,14 @@ "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] }, + "packages/web/web-search-exa": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, + "packages/web/web-search-perplexity": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, "packages/ui/acp-agent": { "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] diff --git a/packages/README.md b/packages/README.md index 11cace9017..ab81df0a66 100644 --- a/packages/README.md +++ b/packages/README.md @@ -13,6 +13,7 @@ Packages are grouped by modular role at `packages///`. The group dir | [`bash/`](bash/README.md) | Bash capability family: the executor seam, a local impl, and the model-facing tool | Product — stable surface | | [`compact/`](compact/README.md) | Compaction capability family: the abstract seam (backend + tool deferred) | Product — stable surface | | [`subagent/`](subagent/README.md) | Subagent capability family: the provider-registry seam and the model-facing delegation tool | Product — stable surface | +| [`web/`](web/README.md) | Web capability family: the abstract seam, search/fetch provider impls, and the model-facing web tools | Product — stable surface | | [`session-persistence/`](session-persistence/README.md) | Persistence capability family: the seam + JSONL/SQLite backends | Product — stable surface | | [`ui/`](ui/README.md) | Editor/client integration surfaces (the ACP bridge) | Product — stable surface | | [`support/`](support/README.md) | Dev/test/example infrastructure (invariants, stdio UI, replay adapter) | Support — lower compatibility expectations | @@ -33,6 +34,11 @@ dsh-compact ← dsh-session, dsh-llm (abstract compaction s dsh-tools ← dsh-llm, dsh-system-prompt, dsh-agent dsh-bash-local ← dsh-bash (BashExecutor impl) dsh-tool-bash ← dsh-bash, dsh-tools (bash tool schemas) +dsh-web ← dsh-llm (abstract web seam; search/fetch registries, WebError) +dsh-web-search-exa ← dsh-web (Exa WebSearchProvider) +dsh-web-search-perplexity ← dsh-web (Perplexity WebSearchProvider) +dsh-web-fetch-local ← dsh-web (anonymous public HTTP(S) WebFetchProvider) +dsh-tool-web ← dsh-web, dsh-tools, dsh-system-prompt (web tool schemas) dsh-llm-deepseek ← dsh-llm (DeepSeek adapter) dsh-llm-pi-ai ← dsh-llm (pi-ai-backed adapter) dsh-agent-loop ← dsh-llm, dsh-session, dsh-system-prompt, dsh-tools, dsh-agent @@ -68,6 +74,11 @@ The rule: **extension** plugins depend on interfaces, never on the concrete loop | `bash-local/` | `bash` | Local-subprocess `BashExecutor` implementation | (registers `ctx.bash`) | | `tool-bash/` | `bash` | Model-facing `bash`/`bash_output`/`bash_kill` tool schemas | (registers on `ctx.tools`) | | `compact/` | `compact` | Abstract compaction seam + `compact/*` events + `CompactionResult` | `ctx.compact` | +| `web/` | `web` | Abstract web seam (search/fetch provider registries + selection + vocabulary + `WebError`) | `ctx.web` | +| `web-search-exa/` | `web` | Exa-backed `WebSearchProvider` | (registers on `ctx.web`) | +| `web-search-perplexity/` | `web` | Perplexity-backed `WebSearchProvider` | (registers on `ctx.web`) | +| `web-fetch-local/` | `web` | Anonymous public HTTP(S) `WebFetchProvider` | (registers on `ctx.web`) | +| `tool-web/` | `web` | Model-facing `web_search`/`web_fetch` tool schemas | (registers on `ctx.tools`) | | `llm-deepseek/` | `llm` | DeepSeek API adapter (hand-rolled fetch/SSE) | (registers on `ctx.llm`) | | `llm-pi-ai/` | `llm` | DeepSeek adapter via `@earendil-works/pi-ai` (design twin) | (registers on `ctx.llm`) | | `session-persistence/` | `session-persistence` | Persistence seam + write coordinator | `ctx.sessionPersistence` | diff --git a/packages/web/README.md b/packages/web/README.md new file mode 100644 index 0000000000..0742d9c2cc --- /dev/null +++ b/packages/web/README.md @@ -0,0 +1,15 @@ +# web/ - web capability family + +The web access capability seam: an abstract web interface, search/fetch provider implementations, and the model-facing web tools. All **product** packages. + +| Package | Role | ctx key | +|---|---|---| +| `web/` | Abstract web seam (search/fetch provider registries + selection + vocabulary + `WebError`) | `ctx.web` | +| `web-search-exa/` | Exa-backed `WebSearchProvider` | (registers on `ctx.web`) | +| `web-search-perplexity/` | Perplexity-backed `WebSearchProvider` | (registers on `ctx.web`) | +| `web-fetch-local/` | Anonymous public HTTP(S) `WebFetchProvider` | (registers on `ctx.web`) | +| `tool-web/` | Model-facing `web_search`/`web_fetch` tool schemas | (registers on `ctx.tools`) | + +The interface lives at `web/web/`. Unlike bash/fs, the seam spans **two capabilities** (search and fetch) with potentially multiple providers each: `ctx.web` is one web-access middle layer with one provider-selection policy, one abort/error vocabulary, and one product-facing "how this harness reaches the web" config surface. Providers register **capabilities**, not tools; `tool-web` is the only owner of model-facing names, schemas, prompt guidance, and presentation. A search provider swap does not change how the model asks for a query, and a fetch implementation swap does not change how the model asks for a URL. + +See the [web capability seam RFC](../../docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md) for the design rationale, including why search and fetch are deliberately one seam and why `web_fetch`'s SSRF protection is deferred. diff --git a/packages/web/tool-web/README.md b/packages/web/tool-web/README.md new file mode 100644 index 0000000000..762bfe0189 --- /dev/null +++ b/packages/web/tool-web/README.md @@ -0,0 +1,30 @@ +# @deepseek-ai/dsh-tool-web + +The model-facing web tool suite — `web_search` and `web_fetch` — over the [web capability seam](../web/README.md) (`ctx.web`). It owns model-facing concerns only: tool names, JSON schemas, snake_case argument names, prompt sections, the result-count bound, result formatting, HTML→markdown presentation, and `presentCall`. All web access goes through `ctx.web`; this package never imports a concrete provider. + +Each tool is also a subpath plugin (`@deepseek-ai/dsh-tool-web/search`, `/fetch`) for focused deployments. + +## Tools + +| Tool | Args | Behavior | +|---|---|---| +| `web_search` | `query` (string) | Discovery. Returns an optional answer plus source URLs. `max_results` is **not** model-facing — the tool sets the bound (`WEB_SEARCH_MAX_RESULTS = 8`) and passes it to the seam. | +| `web_fetch` | `url` (string), `timeout_ms` (number, optional) | Retrieves a specific URL. HTML bodies are rendered to markdown-ish text; text bodies pass through. A non-2xx status is reported, not an error. | + +## Config + +| Key | Default | Meaning | +|---|---|---| +| `search` | `true` | Register `web_search`. | +| `fetch` | `true` | Register `web_fetch`. | + +```yaml +- id: tool-web + name: '@deepseek-ai/dsh-tool-web' +``` + +## Stable registration + +Tool registration follows product **enablement**, not backend availability. A tool stays visible even when its selected provider is missing, misconfigured, ambiguous, or temporarily unavailable; the seam resolves the provider at execution time and execution fails with a structured `WebError` (e.g. `WEB_PROVIDER_UNAVAILABLE`, `WEB_PROVIDER_AMBIGUOUS`), which `ToolRegistry.execute()` turns into an error tool result the model can read and hooks/UI can route on. This keeps the model schema stable without making plugin load order, credential state, or HMR timing part of the model-facing contract. To remove a web tool entirely, disable it here in config. + +The tool reads only the aggregated `ctx.web.searchStatus()` / `fetchStatus()` for diagnostics — never each provider's `status()` directly — so provider selection has one owner. diff --git a/packages/web/tool-web/package.json b/packages/web/tool-web/package.json new file mode 100644 index 0000000000..8d46faa157 --- /dev/null +++ b/packages/web/tool-web/package.json @@ -0,0 +1,42 @@ +{ + "name": "@deepseek-ai/dsh-tool-web", + "description": "Model-facing web tools (web_search, web_fetch) over the DeepSeek Harness web capability seam (ctx.web)", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/index.d.ts", + "exports": { + ".": { "types": "./lib/index.d.ts", "default": "./lib/index.js" }, + "./search": { "types": "./lib/search.d.ts", "default": "./lib/search.js" }, + "./fetch": { "types": "./lib/fetch.d.ts", "default": "./lib/fetch.js" }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-system-prompt": "^0.0.1", + "@deepseek-ai/dsh-tools": "^0.0.1", + "@deepseek-ai/dsh-web": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-agent": "workspace:^", + "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", + "@deepseek-ai/dsh-system-prompt": "workspace:^", + "@deepseek-ai/dsh-tools": "workspace:^", + "@deepseek-ai/dsh-web": "workspace:^", + "@deepseek-ai/dsh-web-fetch-local": "workspace:^", + "@deepseek-ai/dsh-web-search-exa": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/web/tool-web/src/fetch.ts b/packages/web/tool-web/src/fetch.ts new file mode 100644 index 0000000000..a48ad41414 --- /dev/null +++ b/packages/web/tool-web/src/fetch.ts @@ -0,0 +1,87 @@ +/** + * The model-facing `web_fetch` tool: retrieve the content of a specific URL. + * Execution goes through `ctx.web` — this module owns the model-facing schema, + * argument validation, and PRESENTATION (HTML→markdown, truncation formatting), + * while the fetch provider owns safe retrieval (transport, redirects, caps). + * + * @module @deepseek-ai/dsh-tool-web/fetch + */ + +import type { Context } from 'cordis' +import { defineTool } from '@deepseek-ai/dsh-tools' +import type { ToolCallPresentation } from '@deepseek-ai/dsh-tools' +import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import type { WebFetchBody, WebFetchResult } from '@deepseek-ai/dsh-web' +import { assertNever } from '@deepseek-ai/dsh-llm' +import type {} from '@deepseek-ai/dsh-system-prompt' +import { htmlToMarkdown } from './html.ts' + +/** Validate value constraints the schema DSL can't express. */ +export function parseFetchArgs(args: { url: string; timeout_ms?: number }): { url: string; timeoutMs?: number } { + if (args.url.trim().length === 0) throw new Error('url must be a non-empty string') + if (args.timeout_ms !== undefined && (!Number.isFinite(args.timeout_ms) || args.timeout_ms <= 0)) { + throw new Error('timeout_ms must be a positive number') + } + return { url: args.url, ...args.timeout_ms !== undefined ? { timeoutMs: args.timeout_ms } : {} } +} + +/** Render a fetched body to model-facing markdown text. */ +export function renderBody(body: WebFetchBody): string { + switch (body.kind) { + case 'html': + return htmlToMarkdown(body.content) + case 'text': + return body.content + /* v8 ignore next 2 -- WebFetchBody is a closed union; this arm is unreachable and only makes adding a kind a compile error. */ + default: + return assertNever(body, 'unhandled web fetch body kind') + } +} + +/** Format a fetch result as one model-facing text block. */ +export function formatFetchOutput(result: WebFetchResult): string { + const header = `Fetched ${result.url} (HTTP ${result.statusCode})` + const footer = result.truncated ? '\n\n(Content truncated. Fetch a more specific URL or section for the full text.)' : '' + return `${header}\n\n${renderBody(result.body)}${footer}` +} + +/** Pending-call presentation: a fetch card titled by the URL. */ +export function presentFetchCall(args: { url: string; timeout_ms?: number }): ToolCallPresentation { + return { title: args.url, kind: 'fetch', rawInput: args.url } +} + +/** Register the `web_fetch` tool and its system-prompt guidance. */ +export function apply(ctx: Context): void { + ctx.systemPrompt.section({ + name: 'tool:web_fetch', + order: 111, + text: 'Use the web_fetch tool to retrieve the content of a specific HTTP(S) URL (for example a result from web_search). It returns the page content decoded to text. Cite the URL as a markdown link when you use its content.', + }) + + ctx.tools.register(defineTool({ + name: 'web_fetch', + description: 'Fetch the content of a specific HTTP(S) URL and return it decoded to text.', + parameters: { + url: { type: 'string', required: true, description: 'The HTTP(S) URL to fetch.' }, + timeout_ms: { type: 'number', description: 'Optional fetch timeout in milliseconds (capped by the provider).' }, + }, + async execute(args, exec): Promise { + const input = parseFetchArgs(args) + const result = await ctx.web.fetch( + { url: input.url, ...input.timeoutMs !== undefined ? { timeoutMs: input.timeoutMs } : {} }, + exec.signal ? { signal: exec.signal } : undefined, + ) + return [{ type: 'text', text: formatFetchOutput(result) }] + }, + presentCall: presentFetchCall, + })) +} + +/** Cordis plugin name used by loader diagnostics. */ +export const name = 'web-fetch' + +/** Services required by the `web_fetch` tool plugin. */ +export const inject = ['tools', 'web', 'systemPrompt'] + +/** Named helper for direct registration in the root plugin and tests. */ +export const applyWebFetchTool = apply diff --git a/packages/web/tool-web/src/html.ts b/packages/web/tool-web/src/html.ts new file mode 100644 index 0000000000..622be86fd5 --- /dev/null +++ b/packages/web/tool-web/src/html.ts @@ -0,0 +1,85 @@ +/** + * Minimal, dependency-free HTML→markdown-ish text conversion for `web_fetch` + * presentation. This is intentionally NOT a full HTML parser: it strips + * script/style/noscript, drops tags, decodes the common named/numeric entities, + * and collapses whitespace into a readable plain-text approximation with a few + * markdown affordances (headings, list bullets, links). A heavier converter can + * replace this without touching the seam or the tool schema. + * + * @module @deepseek-ai/dsh-tool-web/html + */ + +/** Decode the handful of HTML entities common in textual content. */ +function decodeEntities(text: string): string { + return text + .replace(/&(#[xX][0-9a-fA-F]+|#[0-9]+|[a-zA-Z]+);/g, (match, entity: string) => { + if (entity.startsWith('#x') || entity.startsWith('#X')) { + const code = Number.parseInt(entity.slice(2), 16) + return safeFromCodePoint(code, match) + } + if (entity.startsWith('#')) { + const code = Number.parseInt(entity.slice(1), 10) + return safeFromCodePoint(code, match) + } + return NAMED_ENTITIES[entity] ?? match + }) +} + +const NAMED_ENTITIES: Record = { + amp: '&', lt: '<', gt: '>', quot: '"', apos: "'", nbsp: ' ', + copy: '©', reg: '®', trade: '™', hellip: '…', mdash: '—', ndash: '–', +} + +function safeFromCodePoint(code: number, fallback: string): string { + try { + return String.fromCodePoint(code) + } catch { + // An out-of-range code point (RangeError) is the only failure here; keep the + // original entity text rather than throwing out of pure presentation. + return fallback + } +} + +/** + * Convert an HTML document to a readable markdown-ish text approximation. + * Best-effort and lossy by design — fidelity is the job of a future heavier + * converter, not this fallback. + */ +export function htmlToMarkdown(html: string): string { + let text = html + // Drop non-content elements entirely (including their contents). + .replace(/]*>[\s\S]*?<\/script>/gi, '') + .replace(/]*>[\s\S]*?<\/style>/gi, '') + .replace(/]*>[\s\S]*?<\/noscript>/gi, '') + .replace(//g, '') + + // Convert links to markdown before stripping tags. + text = text.replace(/]*\bhref\s*=\s*["']([^"']*)["'][^>]*>([\s\S]*?)<\/a>/gi, (_match, href: string, label: string) => { + const cleanLabel = label.replace(/<[^>]+>/g, '').trim() + return cleanLabel.length > 0 ? `[${cleanLabel}](${href})` : href + }) + + // Headings → markdown hashes. + text = text.replace(/]*>([\s\S]*?)<\/h\1>/gi, (_match, level: string, body: string) => { + const hashes = '#'.repeat(Number(level)) + return `\n\n${hashes} ${body.replace(/<[^>]+>/g, '').trim()}\n\n` + }) + + // List items → bullets. + text = text.replace(/]*>([\s\S]*?)<\/li>/gi, (_match, body: string) => `\n- ${body.replace(/<[^>]+>/g, '').trim()}`) + + // Block-level breaks become paragraph breaks. + text = text + .replace(/<\/(p|div|section|article|header|footer|tr|table|ul|ol|blockquote)>/gi, '\n\n') + .replace(//gi, '\n') + + // Drop all remaining tags, decode entities, collapse whitespace. + text = text.replace(/<[^>]+>/g, '') + text = decodeEntities(text) + text = text + .replace(/[ \t\f\v]+/g, ' ') + .replace(/ *\n */g, '\n') + .replace(/\n{3,}/g, '\n\n') + .trim() + return text +} diff --git a/packages/web/tool-web/src/index.ts b/packages/web/tool-web/src/index.ts new file mode 100644 index 0000000000..031d7fe4cb --- /dev/null +++ b/packages/web/tool-web/src/index.ts @@ -0,0 +1,59 @@ +/** + * The model-facing web tool suite (`web_search`, `web_fetch`) over the `ctx.web` + * seam. This root plugin registers the tools the product has ENABLED, composing + * the per-tool registration helpers; each tool is also exposed as a subpath + * plugin (`@deepseek-ai/dsh-tool-web/search`, `/fetch`) for focused deployments. + * + * The package owns model-facing concerns only — tool names, JSON schemas, + * argument validation, prompt sections, result-cap constants, result formatting, + * HTML→markdown presentation. All web access goes through `ctx.web`; this + * package never imports a concrete provider package. + * + * Tool registration follows product/app ENABLEMENT, not backend availability: a + * tool stays visible even when its selected provider is missing/misconfigured, + * and execution fails with a structured `WebError` (resolved by the seam at call + * time). That keeps the model schema stable without making plugin load order, + * credential state, or HMR timing part of the model-facing contract. + * + * @module @deepseek-ai/dsh-tool-web + */ + +import type { Context } from 'cordis' +import z from 'schemastery' +import type {} from '@deepseek-ai/dsh-web' +import { applyWebSearchTool } from './search.ts' +import { applyWebFetchTool } from './fetch.ts' + +export { WEB_SEARCH_MAX_RESULTS, applyWebSearchTool, formatSearchOutput, parseSearchArgs, presentSearchCall } from './search.ts' +export { applyWebFetchTool, formatFetchOutput, parseFetchArgs, presentFetchCall, renderBody } from './fetch.ts' +export { htmlToMarkdown } from './html.ts' + +/** Cordis plugin name used by loader diagnostics. */ +export const name = 'tool-web' + +/** Services required by the web tool suite. */ +export const inject = ['tools', 'web', 'systemPrompt'] + +export interface Config { + /** Register `web_search`. Defaults to true. */ + search?: boolean + /** Register `web_fetch`. Defaults to true. */ + fetch?: boolean +} + +export const Config: z = z.object({ + search: z.boolean().default(true), + fetch: z.boolean().default(true), +}) + +/** + * Register the enabled web tools. `search`/`fetch` default to true; a product + * that wants only one disables the other in config. The tools' disposers are + * fiber-scoped (the effect-based registries clean up on dispose), so no manual + * teardown is needed. + */ +export function apply(ctx: Context, config: Config): void { + if (config.search !== false) applyWebSearchTool(ctx) + if (config.fetch !== false) applyWebFetchTool(ctx) +} + diff --git a/packages/web/tool-web/src/search.ts b/packages/web/tool-web/src/search.ts new file mode 100644 index 0000000000..6ed9991903 --- /dev/null +++ b/packages/web/tool-web/src/search.ts @@ -0,0 +1,105 @@ +/** + * The model-facing `web_search` tool: discover current information on the web. + * Execution goes through `ctx.web` — this module owns only the model-facing + * schema, argument validation, the result-count bound, and result formatting, + * never provider selection or network access. + * + * @module @deepseek-ai/dsh-tool-web/search + */ + +import type { Context } from 'cordis' +import { defineTool } from '@deepseek-ai/dsh-tools' +import type { ToolCallPresentation } from '@deepseek-ai/dsh-tools' +import type { ContentBlock } from '@deepseek-ai/dsh-llm' +import type { WebSearchResult } from '@deepseek-ai/dsh-web' +import type {} from '@deepseek-ai/dsh-system-prompt' + +/** + * Default upper bound on returned sources. Owned by the consumer (not the + * provider or model), mirroring `dsh-tool-fs`'s `READ_LIMIT`/`GREP_LIMIT`. The + * model just asks a question; the product controls how much context returns. + * The default `8` aligns with OpenCode's Exa default. + */ +export const WEB_SEARCH_MAX_RESULTS = 8 + +/** Validate value constraints the schema DSL can't express. */ +export function parseSearchArgs(args: { query: string }): { query: string } { + if (args.query.trim().length === 0) throw new Error('query must be a non-empty string') + return { query: args.query } +} + +/** Display label for a source: its title, else its hostname. */ +function sourceLabel(url: string, title: string | undefined): string { + if (title !== undefined && title.length > 0) return title + try { + return new URL(url).hostname + } catch { + // A provider should return a valid URL, but never let a malformed one throw + // out of pure formatting — fall back to the raw string. + return url + } +} + +/** Format a search result as one model-facing text block. */ +export function formatSearchOutput(result: WebSearchResult): string { + const parts: string[] = [] + if (result.content !== undefined && result.content.length > 0) parts.push(result.content) + + if (result.sources.length > 0) { + const lines = result.sources.map((source) => { + const label = sourceLabel(source.url, source.title) + const meta: string[] = [] + if (source.snippet !== undefined && source.snippet.length > 0) meta.push(source.snippet) + if (source.publishedAt !== undefined && source.publishedAt.length > 0) meta.push(`(${source.publishedAt})`) + const suffix = meta.length > 0 ? ` — ${meta.join(' ')}` : '' + return `- [${label}](${source.url})${suffix}` + }) + parts.push(`Sources:\n${lines.join('\n')}`) + } else if (result.content === undefined || result.content.length === 0) { + parts.push('No results found.') + } + + if (result.truncated) parts.push(`(Showing the first ${result.sources.length} sources. Refine the query for more.)`) + parts.push('Cite the relevant URLs above as markdown links in your answer.') + return parts.join('\n\n') +} + +/** Pending-call presentation: a search card titled by the query. */ +export function presentSearchCall(args: { query: string }): ToolCallPresentation { + return { title: args.query, kind: 'search', rawInput: args.query } +} + +/** Register the `web_search` tool and its system-prompt guidance. */ +export function apply(ctx: Context): void { + ctx.systemPrompt.section({ + name: 'tool:web_search', + order: 110, + text: 'Use the web_search tool to discover current information on the web. It returns an optional answer plus a list of source URLs. Follow up with web_fetch when you need the full content of a specific result, and cite the relevant URLs as markdown links.', + }) + + ctx.tools.register(defineTool({ + name: 'web_search', + description: 'Search the web for current information. Returns an optional summary answer and a list of source URLs.', + parameters: { + query: { type: 'string', required: true, description: 'The search query.' }, + }, + async execute(args, exec): Promise { + const input = parseSearchArgs(args) + const result = await ctx.web.search( + { query: input.query, maxResults: WEB_SEARCH_MAX_RESULTS }, + exec.signal ? { signal: exec.signal } : undefined, + ) + return [{ type: 'text', text: formatSearchOutput(result) }] + }, + presentCall: presentSearchCall, + })) +} + +/** Cordis plugin name used by loader diagnostics. */ +export const name = 'web-search' + +/** Services required by the `web_search` tool plugin. */ +export const inject = ['tools', 'web', 'systemPrompt'] + +/** Named helper for direct registration in the root plugin and tests. */ +export const applyWebSearchTool = apply diff --git a/packages/web/tool-web/tests/integration.spec.ts b/packages/web/tool-web/tests/integration.spec.ts new file mode 100644 index 0000000000..18604190c6 --- /dev/null +++ b/packages/web/tool-web/tests/integration.spec.ts @@ -0,0 +1,99 @@ +/** + * Integration: the real fetch backend (`dsh-web-fetch-local`) + a real search + * provider (`dsh-web-search-exa`) + the real seam (`dsh-web`) + the model tool + * (`dsh-tool-web`), exercised through `ctx.tools.execute()` — nothing bypasses + * the tool registry. Fetch hits a real loopback HTTP server (verifying the + * WORLD); search runs the real Exa provider over a stubbed global `fetch` (the + * network is the one boundary we mock). + */ + +import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest' +import { createServer, type IncomingMessage, type Server, type ServerResponse } from 'node:http' +import { AddressInfo } from 'node:net' +import { Context } from 'cordis' +import { CallId } from '@deepseek-ai/dsh-llm' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import WebService from '@deepseek-ai/dsh-web' +import * as WebFetchLocal from '@deepseek-ai/dsh-web-fetch-local' +import * as WebSearchExa from '@deepseek-ai/dsh-web-search-exa' +import * as ToolWeb from '@deepseek-ai/dsh-tool-web' + +type Handler = (req: IncomingMessage, res: ServerResponse) => void + +let server: Server +let base: string +let handler: Handler +let ctx: Context +let fiber: Awaited> + +beforeEach(async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/html' }); res.end('

Hello

World

') } + server = createServer((req, res) => { handler(req, res) }) + await new Promise(resolve => server.listen(0, '127.0.0.1', resolve)) + base = `http://127.0.0.1:${(server.address() as AddressInfo).port}` + + ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(WebService, { searchProvider: WebSearchExa.EXA_PROVIDER_ID, fetchProvider: WebFetchLocal.LOCAL_FETCH_PROVIDER_ID }) + await ctx.plugin(WebFetchLocal, {}) + await ctx.plugin(WebSearchExa, { apiKey: 'exa-key', baseURL: 'https://api.exa.test' }) + fiber = await ctx.plugin(ToolWeb) +}) + +afterEach(async () => { + await fiber.dispose() + vi.unstubAllGlobals() + await new Promise(resolve => server.close(() => { resolve() })) +}) + +let counter = 0 +type ToolResult = { isError: boolean; content: { type: string; text?: string }[]; error?: { code: string } } +function call(name: string, args: unknown): Promise { + return ctx.tools.execute({ callId: CallId(`call-${++counter}`), name, arguments: args }) +} + +describe('web_fetch integration over the real backend', () => { + it('fetches an html page and renders it to markdown', async () => { + const out = await call('web_fetch', { url: base }) + expect(out.isError).toBe(false) + const text = out.content.map(b => b.text).join('') + expect(text).toContain(`Fetched ${base}`) + expect(text).toContain('# Hello') + expect(text).toContain('World') + }) + + it('reports a 404 as a result, not an error', async () => { + handler = (_req, res) => { res.writeHead(404, { 'content-type': 'text/plain' }); res.end('missing') } + const out = await call('web_fetch', { url: base }) + expect(out.isError).toBe(false) + expect(out.content.map(b => b.text).join('')).toContain('HTTP 404') + }) + + it('surfaces WEB_INVALID_URL as a structured tool error', async () => { + const out = await call('web_fetch', { url: 'ftp://example.com' }) + expect(out.isError).toBe(true) + expect(out.error?.code).toBe('WEB_INVALID_URL') + }) + + it('surfaces a blocked cross-origin redirect as WEB_REDIRECT_BLOCKED', async () => { + handler = (_req, res) => { res.writeHead(302, { location: 'https://example.com/' }); res.end() } + const out = await call('web_fetch', { url: base }) + expect(out.isError).toBe(true) + expect(out.error?.code).toBe('WEB_REDIRECT_BLOCKED') + }) +}) + +describe('web_search integration over the real Exa provider', () => { + it('runs web_search end-to-end and formats the provider result', async () => { + vi.stubGlobal('fetch', vi.fn(async () => new Response( + JSON.stringify({ results: [{ url: 'https://result.test', title: 'Result', highlights: ['a highlight'] }] }), + { status: 200, headers: { 'content-type': 'application/json' } }, + ))) + const out = await call('web_search', { query: 'deepseek' }) + expect(out.isError).toBe(false) + expect(out.content.map(b => b.text).join('')).toContain('[Result](https://result.test)') + }) +}) + diff --git a/packages/web/tool-web/tests/load-path.spec.ts b/packages/web/tool-web/tests/load-path.spec.ts new file mode 100644 index 0000000000..5c47f3ce59 --- /dev/null +++ b/packages/web/tool-web/tests/load-path.spec.ts @@ -0,0 +1,49 @@ +/** + * Real-load-path guard for @deepseek-ai/dsh-tool-web. `tool-web` is a NAMESPACE + * plugin with `inject` — so a stray `export default apply` would make the cordis + * Loader's `unwrapExports` (`exports.default ?? exports`) collapse the module to + * the bare `apply` function, DROPPING `inject`. The plugin would then read + * `ctx.web` without having injected it and throw `cannot get property … without + * inject` the moment it loads (postmortem 0001). + * + * A hand-built `ctx.plugin({ apply, inject })` mount CANNOT catch that — it + * bypasses `unwrapExports`. So this test unwraps the module through the REAL + * `Loader.prototype.unwrapExports` and mounts the result over `ctx.web`, + * exercising the exact path the Loader uses. Prove the guard bites: add + * `export default apply` to `src/index.ts`, watch this go red, revert. + */ + +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import Loader from '@cordisjs/plugin-loader' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import WebService from '@deepseek-ai/dsh-web' +import * as toolWeb from '@deepseek-ai/dsh-tool-web' + +describe('dsh-tool-web real-load-path guard', () => { + it('has no default export and keeps name/inject/Config through unwrapExports', () => { + expect('default' in toolWeb).toBe(false) + + const loader = Object.create(Loader.prototype) as Loader + const unwrapped = loader.unwrapExports(toolWeb) as Record + expect(unwrapped).toBe(toolWeb) + expect(unwrapped.name).toBe('tool-web') + expect(unwrapped.inject).toEqual(['tools', 'web', 'systemPrompt']) + expect(typeof unwrapped.apply).toBe('function') + }) + + it('boots over ctx.web through the unwrapped module without an inject error', async () => { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(WebService, {}) + + const loader = Object.create(Loader.prototype) as Loader + const unwrapped = loader.unwrapExports(toolWeb) as Parameters[0] + // A collapsed export shape (dropped inject) would throw "without inject" here. + const fiber = await ctx.plugin(unwrapped) + expect(ctx.tools.schemas().map(s => s.name)).toEqual(expect.arrayContaining(['web_search', 'web_fetch'])) + await fiber.dispose() + }) +}) diff --git a/packages/web/tool-web/tests/tool-web.spec.ts b/packages/web/tool-web/tests/tool-web.spec.ts new file mode 100644 index 0000000000..2422c32ce3 --- /dev/null +++ b/packages/web/tool-web/tests/tool-web.spec.ts @@ -0,0 +1,281 @@ +import { describe, expect, it } from 'vitest' +import { Context } from 'cordis' +import { CallId } from '@deepseek-ai/dsh-llm' +import SystemPrompt from '@deepseek-ai/dsh-system-prompt' +import ToolRegistry from '@deepseek-ai/dsh-tools' +import WebService from '@deepseek-ai/dsh-web' +import type { WebSearchProvider, WebSearchResult, WebProviderStatus } from '@deepseek-ai/dsh-web' +import * as ToolWeb from '@deepseek-ai/dsh-tool-web' +import { + formatSearchOutput, + formatFetchOutput, + parseSearchArgs, + parseFetchArgs, + presentSearchCall, + presentFetchCall, + renderBody, + htmlToMarkdown, +} from '@deepseek-ai/dsh-tool-web' + +const available: WebProviderStatus = { available: true } + +function searchProvider(result: WebSearchResult, status: WebProviderStatus = available): WebSearchProvider { + return { id: 'stub-search', status: () => status, search: () => Promise.resolve(result) } +} + +/** Mount the real registry, seam, and tool-web; return an executor helper. */ +async function mountTools(opts: { + config?: ToolWeb.Config + webConfig?: ConstructorParameters[1] + search?: WebSearchProvider + fetchProvider?: import('@deepseek-ai/dsh-web').WebFetchProvider +} = {}): Promise<{ ctx: Context; fiber: Awaited>; call: (name: string, args: unknown) => Promise<{ isError: boolean; content: { type: string; text?: string }[]; error?: { code: string } }> }> { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(WebService, opts.webConfig ?? {}) + if (opts.search) ctx.web.registerSearchProvider(opts.search) + if (opts.fetchProvider) ctx.web.registerFetchProvider(opts.fetchProvider) + const fiber = await ctx.plugin(ToolWeb, opts.config ?? {}) + let counter = 0 + const call = (name: string, args: unknown) => ctx.tools.execute({ callId: CallId(`call-${++counter}`), name, arguments: args }) as never + return { ctx, fiber, call } +} + +describe('search formatting', () => { + it('renders content, sources with titles/hostnames, snippets, and a citation reminder', () => { + const out = formatSearchOutput({ + providerId: 'p', query: 'q', content: 'an answer', truncated: false, + sources: [ + { url: 'https://a.test/x', title: 'A', snippet: 'about a', publishedAt: '2026-01-01' }, + { url: 'https://b.test/y' }, + ], + }) + expect(out).toContain('an answer') + expect(out).toContain('[A](https://a.test/x) — about a (2026-01-01)') + expect(out).toContain('[b.test](https://b.test/y)') + expect(out).toContain('Cite the relevant URLs') + }) + + it('reports no results when there is neither content nor sources', () => { + expect(formatSearchOutput({ providerId: 'p', query: 'q', sources: [], truncated: false })) + .toContain('No results found.') + }) + + it('renders content alone when there are no sources', () => { + const out = formatSearchOutput({ providerId: 'p', query: 'q', content: 'just an answer', sources: [], truncated: false }) + expect(out).toContain('just an answer') + expect(out).not.toContain('No results found.') + expect(out).not.toContain('Sources:') + }) + + it('notes truncation', () => { + const out = formatSearchOutput({ providerId: 'p', query: 'q', sources: [{ url: 'https://a.test' }], truncated: true }) + expect(out).toContain('Showing the first 1 sources') + }) + + it('validates the query', () => { + expect(() => parseSearchArgs({ query: ' ' })).toThrow('non-empty') + expect(parseSearchArgs({ query: 'hi' })).toEqual({ query: 'hi' }) + }) + + it('presents a search call as a search-kind card titled by the query', () => { + expect(presentSearchCall({ query: 'find me' })).toEqual({ title: 'find me', kind: 'search', rawInput: 'find me' }) + }) +}) + +describe('fetch formatting', () => { + it('renders an html body to markdown text with a status header', () => { + const out = formatFetchOutput({ + providerId: 'p', url: 'https://a.test', statusCode: 200, truncated: false, + body: { kind: 'html', content: '

Title

Body text

' }, + }) + expect(out).toContain('Fetched https://a.test (HTTP 200)') + expect(out).toContain('# Title') + expect(out).toContain('Body text') + }) + + it('passes a text body through and notes truncation', () => { + const out = formatFetchOutput({ + providerId: 'p', url: 'https://a.test', statusCode: 200, truncated: true, + body: { kind: 'text', content: 'plain' }, + }) + expect(out).toContain('plain') + expect(out).toContain('Content truncated') + }) + + it('renderBody dispatches on kind', () => { + expect(renderBody({ kind: 'text', content: 'x' })).toBe('x') + expect(renderBody({ kind: 'html', content: '

y

' })).toBe('y') + }) + + it('validates url and timeout', () => { + expect(() => parseFetchArgs({ url: ' ' })).toThrow('non-empty') + expect(() => parseFetchArgs({ url: 'https://a.test', timeout_ms: -1 })).toThrow('positive') + expect(parseFetchArgs({ url: 'https://a.test', timeout_ms: 5 })).toEqual({ url: 'https://a.test', timeoutMs: 5 }) + }) + + it('presents a fetch call as a fetch-kind card titled by the url', () => { + expect(presentFetchCall({ url: 'https://a.test' })).toEqual({ title: 'https://a.test', kind: 'fetch', rawInput: 'https://a.test' }) + }) +}) + +describe('htmlToMarkdown', () => { + it('drops scripts/styles, keeps text, decodes entities, converts links', () => { + const md = htmlToMarkdown('

Tom & Jerry

link') + expect(md).not.toContain('bad()') + expect(md).not.toContain('.x{}') + expect(md).toContain('Tom & Jerry') + expect(md).toContain('[link](https://a.test)') + }) + + it('decodes numeric entities and collapses whitespace', () => { + expect(htmlToMarkdown('

a'b

')).toBe("a'b") + expect(htmlToMarkdown('
x
\n\n\n
y
')).toBe('x\n\ny') + }) + + it('decodes hex entities and named entities, and leaves unknown/out-of-range ones intact', () => { + expect(htmlToMarkdown('

AB

')).toBe('AB') + expect(htmlToMarkdown('

© —

')).toBe('© —') + expect(htmlToMarkdown('

¬areal;

')).toBe('¬areal;') + // An out-of-range code point keeps the original entity text (fromCodePoint fallback). + expect(htmlToMarkdown('

�

')).toBe('�') + expect(htmlToMarkdown('

�

')).toBe('�') + }) + + it('renders a link with an empty label as its bare href', () => { + expect(htmlToMarkdown('')).toBe('https://a.test') + }) + + it('converts headings and list items to markdown', () => { + expect(htmlToMarkdown('

Heading

after

')).toContain('## Heading') + const list = htmlToMarkdown('
  • one
  • two
') + expect(list).toContain('- one') + expect(list).toContain('- two') + }) + + it('falls back to the raw URL as a source label when the URL is unparseable', () => { + const out = formatSearchOutput({ providerId: 'p', query: 'q', truncated: false, sources: [{ url: 'not a url' }] }) + expect(out).toContain('[not a url](not a url)') + }) +}) + +describe('tool-web registration', () => { + it('registers both tools by default', async () => { + const { fiber, ctx } = await mountTools() + const names = ctx.tools.schemas().map(s => s.name) + expect(names).toContain('web_search') + expect(names).toContain('web_fetch') + await fiber.dispose() + expect(ctx.tools.schemas().map(s => s.name)).not.toContain('web_search') + }) + + it('registers only enabled tools', async () => { + const { fiber, ctx } = await mountTools({ config: { search: true, fetch: false } }) + const names = ctx.tools.schemas().map(s => s.name) + expect(names).toContain('web_search') + expect(names).not.toContain('web_fetch') + await fiber.dispose() + }) + + it('registers only web_fetch when search is disabled', async () => { + const { fiber, ctx } = await mountTools({ config: { search: false, fetch: true } }) + const names = ctx.tools.schemas().map(s => s.name) + expect(names).not.toContain('web_search') + expect(names).toContain('web_fetch') + await fiber.dispose() + }) + + it('registers web_search even when no provider is available (schema follows enablement, not availability)', async () => { + const { fiber, ctx } = await mountTools() + expect(ctx.tools.schemas().map(s => s.name)).toContain('web_search') + expect(ctx.web.searchStatus()).toEqual({ available: false, reason: 'none' }) + await fiber.dispose() + }) + + it('contributes prompt sections for the enabled tools', async () => { + const { fiber, ctx } = await mountTools() + const prompt = await ctx.systemPrompt.assemble() + const text = prompt.sections.map(s => (typeof s.text === 'function' ? s.text() : s.text)).join('\n') + expect(text).toContain('web_search') + expect(text).toContain('web_fetch') + await fiber.dispose() + }) +}) + +describe('tool-web execution through the real registry', () => { + it('executes web_search and formats the result', async () => { + const result: WebSearchResult = { + providerId: 'stub-search', query: 'q', content: 'answer', truncated: false, + sources: [{ url: 'https://a.test', title: 'A', snippet: 'snip' }], + } + const { fiber, call } = await mountTools({ webConfig: { searchProvider: 'stub-search' }, search: searchProvider(result) }) + const out = await call('web_search', { query: 'q' }) + expect(out.isError).toBe(false) + expect(out.content.map(b => b.text).join('')).toContain('[A](https://a.test)') + await fiber.dispose() + }) + + it('surfaces a structured WebError when no provider is available', async () => { + const { fiber, call } = await mountTools() + const out = await call('web_search', { query: 'q' }) + expect(out.isError).toBe(true) + expect(out.error?.code).toBe('WEB_PROVIDER_UNAVAILABLE') + await fiber.dispose() + }) + + it('surfaces WEB_PROVIDER_AMBIGUOUS for multiple unconfigured providers', async () => { + const { ctx, fiber, call } = await mountTools({ search: searchProvider({ providerId: 'stub-search', query: 'q', sources: [], truncated: false }) }) + ctx.web.registerSearchProvider({ id: 'other', status: () => available, search: () => Promise.resolve({ providerId: 'other', query: 'q', sources: [], truncated: false }) }) + const out = await call('web_search', { query: 'q' }) + expect(out.isError).toBe(true) + expect(out.error?.code).toBe('WEB_PROVIDER_AMBIGUOUS') + await fiber.dispose() + }) + + it('rejects invalid arguments with a structured INVALID_ARGS error', async () => { + const { fiber, call } = await mountTools({ webConfig: { searchProvider: 'stub-search' }, search: searchProvider({ providerId: 'stub-search', query: 'q', sources: [], truncated: false }) }) + const out = await call('web_search', { query: 123 }) + expect(out.isError).toBe(true) + expect(out.error?.code).toBe('INVALID_ARGS') + await fiber.dispose() + }) + + it('has no default export (namespace plugin export shape)', () => { + expect('default' in ToolWeb).toBe(false) + }) + + it('executes web_fetch, forwarding timeout_ms and the abort signal to the seam', async () => { + const seen: { request?: { url: string; timeoutMs?: number }; signal?: AbortSignal | undefined } = {} + const fetchProvider = { + id: 'stub-fetch', + status: () => available, + fetch: (request: { url: string; timeoutMs?: number }, exec?: { signal?: AbortSignal }) => { + seen.request = request + seen.signal = exec?.signal + return Promise.resolve({ providerId: 'stub-fetch', url: request.url, statusCode: 200, body: { kind: 'text' as const, content: 'ok' }, truncated: false }) + }, + } + const { ctx, fiber } = await mountTools({ webConfig: { fetchProvider: 'stub-fetch' }, fetchProvider }) + const controller = new AbortController() + const out = await ctx.tools.execute({ callId: CallId('fetch-1'), name: 'web_fetch', arguments: { url: 'https://a.test', timeout_ms: 1234 }, signal: controller.signal }) + expect(out.isError).toBe(false) + expect(seen.request).toEqual({ url: 'https://a.test', timeoutMs: 1234 }) + expect(seen.signal).toBe(controller.signal) + await fiber.dispose() + }) + + it('executes web_search, forwarding the abort signal to the seam', async () => { + const seen: { signal?: AbortSignal | undefined } = {} + const provider: WebSearchProvider = { + id: 'stub-search', + status: () => available, + search: (_request, exec) => { seen.signal = exec?.signal; return Promise.resolve({ providerId: 'stub-search', query: 'q', sources: [], truncated: false }) }, + } + const { ctx, fiber } = await mountTools({ webConfig: { searchProvider: 'stub-search' }, search: provider }) + const controller = new AbortController() + await ctx.tools.execute({ callId: CallId('search-1'), name: 'web_search', arguments: { query: 'q' }, signal: controller.signal }) + expect(seen.signal).toBe(controller.signal) + await fiber.dispose() + }) +}) diff --git a/packages/web/tool-web/tsconfig.json b/packages/web/tool-web/tsconfig.json new file mode 100644 index 0000000000..b4121a6c14 --- /dev/null +++ b/packages/web/tool-web/tsconfig.json @@ -0,0 +1,17 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib" + }, + "include": ["src"], + "references": [ + { "path": "../../../vendor/cosmokit" }, + { "path": "../../../vendor/cordis" }, + { "path": "../../../vendor/schemastery" }, + { "path": "../../llm/llm" }, + { "path": "../../core/tools" }, + { "path": "../../core/system-prompt" }, + { "path": "../web" } + ] +} diff --git a/packages/web/tool-web/tsdown.config.ts b/packages/web/tool-web/tsdown.config.ts new file mode 100644 index 0000000000..c4849939db --- /dev/null +++ b/packages/web/tool-web/tsdown.config.ts @@ -0,0 +1,18 @@ +import { defineConfig } from 'tsdown' + +/** + * tool-web exposes one package root plus one entry per tool plugin, so each tool + * can be loaded or replaced independently as a subpath plugin + * (`@deepseek-ai/dsh-tool-web/search`, `/fetch`). The root tsdown config only + * auto-discovers `src/index.ts`, so the subpath entries are declared here. + */ +export default defineConfig({ + entry: ['src/index.ts', 'src/search.ts', 'src/fetch.ts'], + outDir: 'lib', + format: ['esm'], + platform: 'node', + target: 'es2024', + fixedExtension: false, + dts: false, + clean: false, +}) diff --git a/packages/web/web-fetch-local/README.md b/packages/web/web-fetch-local/README.md new file mode 100644 index 0000000000..fd9150e46f --- /dev/null +++ b/packages/web/web-fetch-local/README.md @@ -0,0 +1,34 @@ +# @deepseek-ai/dsh-web-fetch-local + +An anonymous public HTTP(S) `WebFetchProvider` for the harness [web capability seam](../web/README.md) (`ctx.web`). It retrieves a concrete URL and returns a status code plus bounded decoded content. + +This is an **implementation** package: it registers a provider into `ctx.web`, it does not own the key and it does not register a model-facing tool. It is a function/namespace plugin (`inject: ['web']`). + +## Responsibility split + +The provider owns **safe resource retrieval**: URL validation, HTTP transport, redirect policy, timeout, abort propagation, byte caps, charset decoding, content-type classification, and binary rejection. `@deepseek-ai/dsh-tool-web` owns **presentation** (HTML→markdown, truncation formatting). A non-2xx HTTP response is a *result* (status code + decoded body), not an error; `WebError` is reserved for failures to safely retrieve or represent the resource. + +## Transport hygiene + +- Accepts only `http:` and `https:` URLs; rejects credentials in URLs (`WEB_BLOCKED_URL`) and over-long/malformed URLs (`WEB_INVALID_URL`). +- Enforces a max URL length, response byte cap (`WEB_FETCH_TOO_LARGE`), decoded body character cap, timeout (`WEB_FETCH_TIMEOUT`), and redirect hop cap. +- Propagates the caller's abort signal (`WEB_ABORTED`) into the network request and the streaming read. +- Follows only **same-origin** redirects; a cross-origin redirect fails with `WEB_REDIRECT_BLOCKED`, requiring a fresh tool call (the model of Claude Code's WebFetch). +- Sends an explicit product `User-Agent`, never a browser disguise. +- Rejects unsupported (e.g. binary) content types with `WEB_UNSUPPORTED_CONTENT_TYPE`. + +## Config + +| Key | Default | Meaning | +|---|---|---| +| `maxUrlLength` | `2048` | Maximum accepted request URL length. | +| `maxResponseBytes` | `5_000_000` | Maximum response body size in bytes. | +| `maxBodyChars` | `100_000` | Maximum decoded body length in characters. | +| `timeoutMs` | `30_000` | Default fetch timeout. | +| `maxTimeoutMs` | `120_000` | Upper bound for a per-request timeout override. | +| `maxRedirects` | `5` | Maximum same-origin redirect hops. | +| `userAgent` | `deepseek-harness/…` | `User-Agent` header. | + +## Security note + +SSRF / private-network protection (blocking private, loopback, link-local, multicast, and otherwise non-public destinations, with DNS-resolve-then-validate and per-hop re-validation) is **deferred** — see the [web capability seam RFC](../../../docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md). Until it lands, this provider is an SSRF primitive and **must not be enabled** in a deployment that can reach sensitive internal network targets. diff --git a/packages/web/web-fetch-local/package.json b/packages/web/web-fetch-local/package.json new file mode 100644 index 0000000000..7249697ec3 --- /dev/null +++ b/packages/web/web-fetch-local/package.json @@ -0,0 +1,33 @@ +{ + "name": "@deepseek-ai/dsh-web-fetch-local", + "description": "Anonymous public HTTP(S) fetch provider for the DeepSeek Harness web capability seam (ctx.web)", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/index.d.ts", + "exports": { + ".": { + "types": "./lib/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-web": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-web": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/web/web-fetch-local/src/index.ts b/packages/web/web-fetch-local/src/index.ts new file mode 100644 index 0000000000..1d57410d68 --- /dev/null +++ b/packages/web/web-fetch-local/src/index.ts @@ -0,0 +1,77 @@ +/** + * `@deepseek-ai/dsh-web-fetch-local`: registers an anonymous public HTTP(S) + * `WebFetchProvider` with `ctx.web`. A function/namespace plugin (NOT a + * default-export service): it registers INTO the seam's fetch registry, like the + * search providers register into the search registry. + * + * @module @deepseek-ai/dsh-web-fetch-local + */ + +import type { Context } from 'cordis' +import z from 'schemastery' +import type {} from '@deepseek-ai/dsh-web' +import { LocalFetchProvider } from './provider.ts' +import type { LocalFetchLimits } from './provider.ts' + +export { + LOCAL_FETCH_PROVIDER_ID, + LocalFetchProvider, +} from './provider.ts' +export type { LocalFetchLimits } from './provider.ts' +export { classifyContentType, isSameOrigin, validateFetchUrl } from './policy.ts' +export type { FetchableKind } from './policy.ts' + +/** Default `User-Agent`: an explicit product agent, never a browser disguise. */ +export const DEFAULT_USER_AGENT = 'deepseek-harness/0.0.1 (+https://github.com/deepseek-ai)' + +/** Cordis plugin name used by loader diagnostics. */ +export const name = 'web-fetch-local' + +/** The web seam this provider registers into. */ +export const inject = ['web'] + +export interface Config { + /** Maximum accepted request URL length. */ + maxUrlLength?: number + /** Maximum response body size in bytes. */ + maxResponseBytes?: number + /** Maximum decoded body length in characters. */ + maxBodyChars?: number + /** Default fetch timeout in milliseconds. */ + timeoutMs?: number + /** Upper bound for a per-request timeout override. */ + maxTimeoutMs?: number + /** Maximum number of same-origin redirect hops to follow. */ + maxRedirects?: number + /** `User-Agent` header sent on every request. */ + userAgent?: string +} + +export const Config: z = z.object({ + maxUrlLength: z.number().default(2048), + maxResponseBytes: z.number().default(5_000_000), + maxBodyChars: z.number().default(100_000), + timeoutMs: z.number().default(30_000), + maxTimeoutMs: z.number().default(120_000), + maxRedirects: z.number().default(5), + userAgent: z.string().default(DEFAULT_USER_AGENT), +}) + +/** The shape after schemastery applies its defaults to every field. */ +type ResolvedConfig = Required + +/** Register the local HTTP(S) fetch provider with `ctx.web`. */ +export function apply(ctx: Context, config: Config): void { + // schemastery (Config) has already filled every defaulted field. + const resolved = config as ResolvedConfig + const limits: LocalFetchLimits = { + maxUrlLength: resolved.maxUrlLength, + maxResponseBytes: resolved.maxResponseBytes, + maxBodyChars: resolved.maxBodyChars, + timeoutMs: resolved.timeoutMs, + maxTimeoutMs: resolved.maxTimeoutMs, + maxRedirects: resolved.maxRedirects, + userAgent: resolved.userAgent, + } + ctx.web.registerFetchProvider(new LocalFetchProvider(limits)) +} diff --git a/packages/web/web-fetch-local/src/policy.ts b/packages/web/web-fetch-local/src/policy.ts new file mode 100644 index 0000000000..8261c5c1ed --- /dev/null +++ b/packages/web/web-fetch-local/src/policy.ts @@ -0,0 +1,59 @@ +/** + * URL validation and content-type classification for the local HTTP(S) fetch + * provider — the pure, network-free half. The provider's `fetch()` composes + * these with transport (redirect following, byte caps, decoding). + * + * @module @deepseek-ai/dsh-web-fetch-local/policy + */ + +import { WebError } from '@deepseek-ai/dsh-web' + +/** The body kinds this provider decodes. */ +export type FetchableKind = 'html' | 'text' + +/** + * Validate a request URL against the basic transport hygiene the provider + * enforces before any network access: http(s) only, no embedded credentials, + * bounded length. Returns the parsed `URL`. Throws {@link WebError} otherwise. + * (SSRF / private-network blocking is deferred — see the package RFC.) + */ +export function validateFetchUrl(input: string, maxUrlLength: number): URL { + if (input.length > maxUrlLength) { + throw new WebError(`URL exceeds the maximum length of ${maxUrlLength}`, 'WEB_INVALID_URL') + } + let url: URL + try { + url = new URL(input) + } catch (error: unknown) { + throw new WebError(`invalid URL: ${input}`, 'WEB_INVALID_URL', { cause: error }) + } + if (url.protocol !== 'http:' && url.protocol !== 'https:') { + throw new WebError(`unsupported URL scheme "${url.protocol}" (only http and https are allowed)`, 'WEB_INVALID_URL') + } + if (url.username.length > 0 || url.password.length > 0) { + throw new WebError('credentials in URLs are not allowed', 'WEB_BLOCKED_URL') + } + return url +} + +/** + * Two URLs are same-origin when scheme, hostname, and port match. A redirect + * that crosses origins is refused so each new origin requires a fresh tool call + * (and thus a fresh provider/permission decision). + */ +export function isSameOrigin(a: URL, b: URL): boolean { + return a.protocol === b.protocol && a.hostname === b.hostname && a.port === b.port +} + +/** + * Classify a response `Content-Type` into a decodable body kind, or `undefined` + * for an unsupported (e.g. binary) type. `text/html` and `application/xhtml+xml` + * are `html`; other `text/*` plus a few structured text types are `text`. + */ +export function classifyContentType(contentType: string | null): FetchableKind | undefined { + const mime = (contentType ?? '').replace(/;.*$/s, '').trim().toLowerCase() + if (mime === 'text/html' || mime === 'application/xhtml+xml') return 'html' + if (mime.startsWith('text/')) return 'text' + if (mime === 'application/json' || mime === 'application/xml' || mime.endsWith('+json') || mime.endsWith('+xml')) return 'text' + return undefined +} diff --git a/packages/web/web-fetch-local/src/provider.ts b/packages/web/web-fetch-local/src/provider.ts new file mode 100644 index 0000000000..0622030af0 --- /dev/null +++ b/packages/web/web-fetch-local/src/provider.ts @@ -0,0 +1,233 @@ +/** + * `LocalFetchProvider`: a `WebFetchProvider` that retrieves a concrete public + * HTTP(S) URL with the platform-native `fetch` (Node 24) and returns a status + * code plus bounded decoded content. It owns SAFE RESOURCE RETRIEVAL — URL + * validation, redirect policy, timeout, abort, byte caps, charset decoding, + * content-type classification, binary rejection — but NOT presentation + * (HTML→markdown lives in `@deepseek-ai/dsh-tool-web`). + * + * Redirects are followed manually (`redirect: 'manual'`) so the provider can + * enforce a same-origin-only policy: a cross-origin redirect is refused with + * `WEB_REDIRECT_BLOCKED`, requiring a fresh tool call (Claude Code's WebFetch + * uses the same model). It does NOT carry browser cookies, editor/git + * credentials, or implicit access to private services. + * + * SSRF / private-network protection is DEFERRED (see the package RFC); until it + * lands this provider is an SSRF primitive and must not be enabled where it can + * reach sensitive internal targets. + * + * @module @deepseek-ai/dsh-web-fetch-local/provider + */ + +import { WebError } from '@deepseek-ai/dsh-web' +import type { WebFetchBody, WebFetchProvider, WebFetchRequest, WebFetchResult, WebProviderStatus } from '@deepseek-ai/dsh-web' +import { classifyContentType, isSameOrigin, validateFetchUrl } from './policy.ts' + +/** Resolved provider limits (the plugin's schemastery Config supplies defaults). */ +export interface LocalFetchLimits { + /** Maximum accepted request URL length. */ + maxUrlLength: number + /** Maximum response body size in bytes (read is aborted past this). */ + maxResponseBytes: number + /** Maximum decoded body length in characters (truncated past this). */ + maxBodyChars: number + /** Default fetch timeout in milliseconds. */ + timeoutMs: number + /** Upper bound for a per-request timeout override. */ + maxTimeoutMs: number + /** Maximum number of (same-origin) redirect hops to follow. */ + maxRedirects: number + /** `User-Agent` header sent on every request. */ + userAgent: string +} + +/** Stable id this provider registers under. */ +export const LOCAL_FETCH_PROVIDER_ID = 'local-http' + +/** The anonymous public HTTP(S) fetch provider. */ +export class LocalFetchProvider implements WebFetchProvider { + readonly id = LOCAL_FETCH_PROVIDER_ID + + constructor(private readonly limits: LocalFetchLimits) {} + + /** No credentials to check — an anonymous public fetcher is always usable. */ + status(): WebProviderStatus { + return { available: true } + } + + async fetch(request: WebFetchRequest, exec?: { readonly signal?: AbortSignal }): Promise { + const timeoutMs = request.timeoutMs !== undefined + ? Math.min(request.timeoutMs, this.limits.maxTimeoutMs) + : this.limits.timeoutMs + + // One controller drives both the caller's abort and our own timeout, so the + // network request and the streaming read both stop on either. + const controller = new AbortController() + const onAbort = (): void => { controller.abort() } + if (exec?.signal !== undefined) { + if (exec.signal.aborted) throw new WebError('web fetch aborted', 'WEB_ABORTED') + exec.signal.addEventListener('abort', onAbort, { once: true }) + } + const timer = setTimeout(() => { controller.abort(new WebError('web fetch timed out', 'WEB_FETCH_TIMEOUT')) }, timeoutMs) + + try { + return await this.followAndRead(request.url, controller, timeoutMs) + } finally { + clearTimeout(timer) + if (exec?.signal !== undefined) exec.signal.removeEventListener('abort', onAbort) + } + } + + /** Follow same-origin redirects up to the hop cap, then read the final response. */ + private async followAndRead(initialUrl: string, controller: AbortController, timeoutMs: number): Promise { + let currentUrl = validateFetchUrl(initialUrl, this.limits.maxUrlLength) + + for (let hop = 0; hop <= this.limits.maxRedirects; hop++) { + const response = await this.requestOnce(currentUrl, controller, timeoutMs) + + if (isRedirectStatus(response.status)) { + const location = response.headers.get('location') + if (location === null) { + // A redirect status with no Location is not a usable resource. + throw new WebError(`redirect response (HTTP ${response.status}) without a Location header`, 'WEB_PROVIDER_ERROR') + } + const target = resolveRedirect(location, currentUrl) + if (!isSameOrigin(target, currentUrl)) { + throw new WebError( + `cross-origin redirect to ${target.origin} is not followed automatically; retry against that URL directly`, + 'WEB_REDIRECT_BLOCKED', + ) + } + await response.body?.cancel() + currentUrl = target + continue + } + + return await this.readBody(response, currentUrl) + } + + throw new WebError(`exceeded the maximum of ${this.limits.maxRedirects} redirects`, 'WEB_REDIRECT_BLOCKED') + } + + private async requestOnce(url: URL, controller: AbortController, _timeoutMs: number): Promise { + try { + return await fetch(url, { + method: 'GET', + redirect: 'manual', + headers: { 'user-agent': this.limits.userAgent, 'accept': 'text/html,application/xhtml+xml,text/*;q=0.9,application/json;q=0.8' }, + signal: controller.signal, + }) + } catch (error: unknown) { + throw translateAbortOrNetwork(error) + } + } + + /** Read, byte-cap, classify, and decode the final response body. */ + private async readBody(response: Response, finalUrl: URL): Promise { + const kind = classifyContentType(response.headers.get('content-type')) + if (kind === undefined) { + await response.body?.cancel() + throw new WebError(`unsupported content type "${response.headers.get('content-type') ?? 'unknown'}"`, 'WEB_UNSUPPORTED_CONTENT_TYPE') + } + + const { bytes, truncatedByBytes } = await this.readCapped(response) + const decoded = new TextDecoder('utf-8').decode(bytes) + const truncatedByChars = decoded.length > this.limits.maxBodyChars + const content = truncatedByChars ? decoded.slice(0, this.limits.maxBodyChars) : decoded + const body: WebFetchBody = kind === 'html' ? { kind: 'html', content } : { kind: 'text', content } + + return { + providerId: this.id, + url: finalUrl.toString(), + statusCode: response.status, + body, + truncated: truncatedByBytes || truncatedByChars, + } + } + + /** + * Read the response stream up to `maxResponseBytes`. A `Content-Length` over + * the cap rejects immediately with `WEB_FETCH_TOO_LARGE`; a stream that grows + * past the cap is cut short (`truncatedByBytes`) rather than rejected, so a + * server that under-reports still yields a bounded usable body. + */ + private async readCapped(response: Response): Promise<{ bytes: Uint8Array; truncatedByBytes: boolean }> { + const declared = response.headers.get('content-length') + if (declared !== null) { + const length = Number(declared) + if (Number.isFinite(length) && length > this.limits.maxResponseBytes) { + await response.body?.cancel() + throw new WebError(`response exceeds the maximum of ${this.limits.maxResponseBytes} bytes`, 'WEB_FETCH_TOO_LARGE') + } + } + + /* v8 ignore next -- a 2xx Response from fetch always exposes a body stream; the null guard is defensive. */ + if (response.body === null) return { bytes: new Uint8Array(0), truncatedByBytes: false } + + const chunks: Uint8Array[] = [] + let total = 0 + let truncatedByBytes = false + const reader = response.body.getReader() + try { + for (;;) { + const { done, value } = await reader.read() + if (done) break + const remaining = this.limits.maxResponseBytes - total + if (value.byteLength >= remaining) { + chunks.push(value.subarray(0, remaining)) + total += remaining + truncatedByBytes = true + break + } + chunks.push(value) + total += value.byteLength + } + } catch (error: unknown) { + /* v8 ignore next -- mid-stream read fault needs a network drop after headers; translate path covered by request-phase tests. */ + throw translateAbortOrNetwork(error) + } finally { + /* v8 ignore next 4 -- cancel() after a completed/broken read settles without rejecting; unobserved best-effort cleanup. */ + await reader.cancel().catch(() => { + // Cancel after a successful read (or after we broke past the cap) is + // best-effort cleanup; the bytes we need are already collected. + }) + } + + const bytes = new Uint8Array(total) + let offset = 0 + for (const chunk of chunks) { + bytes.set(chunk, offset) + offset += chunk.byteLength + } + return { bytes, truncatedByBytes } + } +} + +/** HTTP redirect status codes that carry a `Location`. */ +function isRedirectStatus(status: number): boolean { + return status === 301 || status === 302 || status === 303 || status === 307 || status === 308 +} + +/** Resolve a (possibly relative) `Location` against the current URL. */ +function resolveRedirect(location: string, base: URL): URL { + try { + return new URL(location, base) + } catch (error: unknown) { + /* v8 ignore next 2 -- URL resolution against a valid absolute base effectively never throws; defensive guard. */ + throw new WebError(`invalid redirect Location "${location}"`, 'WEB_PROVIDER_ERROR', { cause: error }) + } +} + +/** + * Translate a thrown fetch/stream error into a `WebError`. Our own + * `WEB_FETCH_TIMEOUT` (passed to `controller.abort(reason)`) and any other + * already-typed `WebError` pass through; an `AbortError` becomes `WEB_ABORTED`; + * anything else is a transport/network failure (`WEB_PROVIDER_ERROR`). + */ +function translateAbortOrNetwork(error: unknown): WebError { + if (error instanceof WebError) return error + if (error instanceof DOMException && error.name === 'AbortError') { + return new WebError('web fetch aborted', 'WEB_ABORTED', { cause: error }) + } + return new WebError(`web fetch failed: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) +} diff --git a/packages/web/web-fetch-local/tests/fetch-local.spec.ts b/packages/web/web-fetch-local/tests/fetch-local.spec.ts new file mode 100644 index 0000000000..3ca48150e1 --- /dev/null +++ b/packages/web/web-fetch-local/tests/fetch-local.spec.ts @@ -0,0 +1,239 @@ +import { afterEach, beforeEach, describe, expect, it } from 'vitest' +import { createServer, type IncomingMessage, type Server, type ServerResponse } from 'node:http' +import { AddressInfo } from 'node:net' +import { Context } from 'cordis' +import WebService from '@deepseek-ai/dsh-web' +import { LocalFetchProvider, LOCAL_FETCH_PROVIDER_ID, classifyContentType, isSameOrigin, validateFetchUrl } from '@deepseek-ai/dsh-web-fetch-local' +import type { LocalFetchLimits } from '@deepseek-ai/dsh-web-fetch-local' +import * as fetchPlugin from '@deepseek-ai/dsh-web-fetch-local' + +const limits: LocalFetchLimits = { + maxUrlLength: 2048, + maxResponseBytes: 5_000_000, + maxBodyChars: 100_000, + timeoutMs: 5_000, + maxTimeoutMs: 10_000, + maxRedirects: 5, + userAgent: 'test-agent/1.0', +} + +type Handler = (req: IncomingMessage, res: ServerResponse) => void + +let server: Server +let base: string +let handler: Handler + +beforeEach(async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('default') } + server = createServer((req, res) => { handler(req, res) }) + await new Promise(resolve => server.listen(0, '127.0.0.1', resolve)) + const { port } = server.address() as AddressInfo + base = `http://127.0.0.1:${port}` +}) + +afterEach(async () => { + await new Promise(resolve => server.close(() => { resolve() })) +}) + +function provider(overrides: Partial = {}): LocalFetchProvider { + return new LocalFetchProvider({ ...limits, ...overrides }) +} + +describe('policy helpers', () => { + it('validates scheme, credentials, and length', () => { + expect(validateFetchUrl('https://example.com/x', 2048).hostname).toBe('example.com') + expect(() => validateFetchUrl('ftp://example.com', 2048)).toThrow(expect.objectContaining({ code: 'WEB_INVALID_URL' })) + expect(() => validateFetchUrl('not a url', 2048)).toThrow(expect.objectContaining({ code: 'WEB_INVALID_URL' })) + expect(() => validateFetchUrl('https://user:pass@example.com', 2048)).toThrow(expect.objectContaining({ code: 'WEB_BLOCKED_URL' })) + expect(() => validateFetchUrl(`https://example.com/${'a'.repeat(3000)}`, 2048)).toThrow(expect.objectContaining({ code: 'WEB_INVALID_URL' })) + }) + + it('classifies content types', () => { + expect(classifyContentType('text/html; charset=utf-8')).toBe('html') + expect(classifyContentType('application/xhtml+xml')).toBe('html') + expect(classifyContentType('text/plain')).toBe('text') + expect(classifyContentType('application/json')).toBe('text') + expect(classifyContentType('image/png')).toBeUndefined() + expect(classifyContentType(null)).toBeUndefined() + }) + + it('compares origins', () => { + expect(isSameOrigin(new URL('https://a.com/x'), new URL('https://a.com/y'))).toBe(true) + expect(isSameOrigin(new URL('https://a.com'), new URL('https://b.com'))).toBe(false) + expect(isSameOrigin(new URL('http://a.com'), new URL('https://a.com'))).toBe(false) + }) +}) + +describe('LocalFetchProvider success', () => { + it('fetches a text body', async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('hello world') } + const result = await provider().fetch({ url: base }) + expect(result.providerId).toBe(LOCAL_FETCH_PROVIDER_ID) + expect(result.statusCode).toBe(200) + expect(result.body).toEqual({ kind: 'text', content: 'hello world' }) + expect(result.truncated).toBe(false) + }) + + it('fetches an html body and classifies it as html', async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/html' }); res.end('

hi

') } + const result = await provider().fetch({ url: base }) + expect(result.body).toEqual({ kind: 'html', content: '

hi

' }) + }) + + it('sends the configured user agent', async () => { + let seen: string | undefined + handler = (req, res) => { seen = req.headers['user-agent']; res.writeHead(200, { 'content-type': 'text/plain' }); res.end('ok') } + await provider().fetch({ url: base }) + expect(seen).toBe('test-agent/1.0') + }) + + it('returns a non-2xx response as a result, not an error', async () => { + handler = (_req, res) => { res.writeHead(404, { 'content-type': 'text/plain' }); res.end('nope') } + const result = await provider().fetch({ url: base }) + expect(result.statusCode).toBe(404) + expect(result.body).toEqual({ kind: 'text', content: 'nope' }) + }) +}) + +describe('LocalFetchProvider caps', () => { + it('rejects an over-cap Content-Length with WEB_FETCH_TOO_LARGE', async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain', 'content-length': '999999' }); res.end('x'.repeat(999999)) } + await expect(provider({ maxResponseBytes: 10 }).fetch({ url: base })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_FETCH_TOO_LARGE' })) + }) + + it('truncates a stream that grows past the byte cap', async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('abcdefghij') } + const result = await provider({ maxResponseBytes: 4 }).fetch({ url: base }) + expect(result.body.content).toBe('abcd') + expect(result.truncated).toBe(true) + }) + + it('truncates a decoded body past the character cap', async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('abcdefghij') } + const result = await provider({ maxBodyChars: 3 }).fetch({ url: base }) + expect(result.body.content).toBe('abc') + expect(result.truncated).toBe(true) + }) + + it('rejects an unsupported content type', async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'image/png' }); res.end('binary') } + await expect(provider().fetch({ url: base })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_UNSUPPORTED_CONTENT_TYPE' })) + }) + + it('rejects a response with no content type at all', async () => { + handler = (_req, res) => { res.writeHead(200); res.end('no type') } + await expect(provider().fetch({ url: base })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_UNSUPPORTED_CONTENT_TYPE' })) + }) + + it('accepts a declared content-length within the cap', async () => { + handler = (_req, res) => { const body = 'sized'; res.writeHead(200, { 'content-type': 'text/plain', 'content-length': String(body.length) }); res.end(body) } + const result = await provider().fetch({ url: base }) + expect(result.body.content).toBe('sized') + }) +}) + +describe('LocalFetchProvider redirects', () => { + it('follows a same-origin redirect and reports the final URL', async () => { + handler = (req, res) => { + if (req.url === '/start') { res.writeHead(302, { location: '/end' }); res.end() } + else { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('arrived') } + } + const result = await provider().fetch({ url: `${base}/start` }) + expect(result.body.content).toBe('arrived') + expect(result.url).toBe(`${base}/end`) + }) + + it('blocks a cross-origin redirect with WEB_REDIRECT_BLOCKED', async () => { + handler = (_req, res) => { res.writeHead(302, { location: 'https://example.com/' }); res.end() } + await expect(provider().fetch({ url: base })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_REDIRECT_BLOCKED' })) + }) + + it('rejects exceeding the redirect hop cap', async () => { + handler = (req, res) => { + const n = Number(new URL(req.url ?? '/', base).searchParams.get('n') ?? '0') + res.writeHead(302, { location: `/?n=${n + 1}` }) + res.end() + } + await expect(provider({ maxRedirects: 2 }).fetch({ url: `${base}/?n=0` })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_REDIRECT_BLOCKED' })) + }) + + it('treats a redirect without a Location header as a provider error', async () => { + handler = (_req, res) => { res.writeHead(302); res.end() } + await expect(provider().fetch({ url: base })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + + it('follows a relative same-origin redirect', async () => { + handler = (req, res) => { + if (req.url === '/a') { res.writeHead(301, { location: 'b' }); res.end() } + else { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('landed') } + } + const result = await provider().fetch({ url: `${base}/a` }) + expect(result.body.content).toBe('landed') + }) +}) + +describe('LocalFetchProvider invalid URLs and abort', () => { + it('rejects a non-http scheme before any network access', async () => { + await expect(provider().fetch({ url: 'ftp://example.com' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_INVALID_URL' })) + }) + + it('rejects credentials in the URL', async () => { + await expect(provider().fetch({ url: 'http://user:pass@127.0.0.1/' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_BLOCKED_URL' })) + }) + + it('honors a pre-aborted signal', async () => { + const controller = new AbortController() + controller.abort() + await expect(provider().fetch({ url: base }, { signal: controller.signal })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + + it('aborts an in-flight fetch via the signal', async () => { + handler = (_req, _res) => { /* never responds */ } + const controller = new AbortController() + const promise = provider().fetch({ url: base }, { signal: controller.signal }) + controller.abort() + await expect(promise).rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + + it('times out a slow response with WEB_FETCH_TIMEOUT', async () => { + handler = (_req, _res) => { /* never responds */ } + await expect(provider({ timeoutMs: 50 }).fetch({ url: base })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_FETCH_TIMEOUT' })) + }) + + it('maps a connection failure to WEB_PROVIDER_ERROR', async () => { + // Port 1 on loopback is not listening: a real connection failure (not abort). + await expect(provider().fetch({ url: 'http://127.0.0.1:1/' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + + it('caps the per-request timeout at maxTimeoutMs', async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('ok') } + const result = await provider({ maxTimeoutMs: 10_000 }).fetch({ url: base, timeoutMs: 999_999 }) + expect(result.statusCode).toBe(200) + }) +}) + +describe('web-fetch-local plugin registration', () => { + it('registers the provider into ctx.web (HMR-safe)', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { fetchProvider: LOCAL_FETCH_PROVIDER_ID }) + const fiber = await ctx.plugin(fetchPlugin, {}) + expect(ctx.web.fetchStatus()).toEqual({ available: true, providerId: LOCAL_FETCH_PROVIDER_ID }) + await fiber.dispose() + expect(ctx.web.fetchStatus()).toEqual({ available: false, reason: 'configured-missing' }) + }) + + it('has no default export (namespace plugin export shape)', () => { + expect('default' in fetchPlugin).toBe(false) + }) +}) diff --git a/packages/web/web-fetch-local/tsconfig.json b/packages/web/web-fetch-local/tsconfig.json new file mode 100644 index 0000000000..cb9eb44552 --- /dev/null +++ b/packages/web/web-fetch-local/tsconfig.json @@ -0,0 +1,24 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../web" + } + ] +} diff --git a/packages/web/web-search-exa/README.md b/packages/web/web-search-exa/README.md new file mode 100644 index 0000000000..7f39356e81 --- /dev/null +++ b/packages/web/web-search-exa/README.md @@ -0,0 +1,23 @@ +# @deepseek-ai/dsh-web-search-exa + +An [Exa](https://exa.ai)-backed `WebSearchProvider` for the harness [web capability seam](../web/README.md) (`ctx.web`). It calls Exa's `POST /search` endpoint with highlight contents and maps the flat `results[]` into the seam's normalized `WebSearchResult`. + +This is an **implementation** package: it registers a provider into `ctx.web`, it does not own the `ctx.web` key and it does not register a model-facing tool (that is `@deepseek-ai/dsh-tool-web`). Like `@deepseek-ai/dsh-llm-deepseek`, it is a function/namespace plugin (`inject: ['web']`) that registers its backend, not a default-export service. + +## Config + +| Key | Default | Meaning | +|---|---|---| +| `apiKey` | `$EXA_API_KEY` | Exa API key. Empty/absent → provider `status()` reports `missing-credential` (the seam reports `configured-unavailable`/`none`). | +| `baseURL` | `https://api.exa.ai` | Endpoint base; `/search` is appended. | + +```yaml +- id: web-search-exa + name: '@deepseek-ai/dsh-web-search-exa' + config: + apiKey: !!js process.env.EXA_API_KEY +``` + +## Mapping + +Exa returns a flat `results[]` and no generated answer, so `content` is omitted. Each result maps to a `WebSearchSource`: `url` ← `url`, `title` ← `title`, `snippet` ← the first non-empty `highlights[]` entry (a result with no highlight has no portable snippet and is dropped), `publishedAt` ← `publishedDate`. The provider passes `maxResults` through as Exa's `numResults` for a cost/latency optimization; the final bound is enforced by the seam. Provider failures (HTTP errors, network failure, unparseable bodies) surface as `WebError` `WEB_PROVIDER_ERROR`; an aborted request surfaces as `WEB_ABORTED`. diff --git a/packages/web/web-search-exa/package.json b/packages/web/web-search-exa/package.json new file mode 100644 index 0000000000..fe79af8ba8 --- /dev/null +++ b/packages/web/web-search-exa/package.json @@ -0,0 +1,33 @@ +{ + "name": "@deepseek-ai/dsh-web-search-exa", + "description": "Exa-backed search provider for the DeepSeek Harness web capability seam (ctx.web)", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/index.d.ts", + "exports": { + ".": { + "types": "./lib/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-web": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-web": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/web/web-search-exa/src/index.ts b/packages/web/web-search-exa/src/index.ts new file mode 100644 index 0000000000..f266474708 --- /dev/null +++ b/packages/web/web-search-exa/src/index.ts @@ -0,0 +1,48 @@ +/** + * `@deepseek-ai/dsh-web-search-exa`: registers an Exa-backed `WebSearchProvider` + * with `ctx.web`. A function/namespace plugin (NOT a default-export service): + * a search provider does not own the `ctx.web` key — it registers INTO the + * seam's provider registry, exactly as `@deepseek-ai/dsh-llm-deepseek` + * registers an adapter into `ctx.llm`. The key is owned by `@deepseek-ai/dsh-web`. + * + * @module @deepseek-ai/dsh-web-search-exa + */ + +import type { Context } from 'cordis' +import z from 'schemastery' +import type {} from '@deepseek-ai/dsh-web' +import { ExaSearchProvider, EXA_DEFAULT_BASE_URL } from './provider.ts' + +export { + EXA_DEFAULT_BASE_URL, + EXA_PROVIDER_ID, + ExaSearchProvider, + mapExaResponse, + mapExaResult, +} from './provider.ts' +export type { ExaSearchProviderOptions } from './provider.ts' + +/** Cordis plugin name used by loader diagnostics. */ +export const name = 'web-search-exa' + +/** The web seam this provider registers into. */ +export const inject = ['web'] + +export interface Config { + /** Exa API key. Falls back to `$EXA_API_KEY`. Empty → provider unavailable. */ + apiKey?: string + /** Endpoint base; `/search` is appended. Defaults to the public API. */ + baseURL?: string +} + +export const Config: z = z.object({ + apiKey: z.string(), + baseURL: z.string(), +}) + +/** Register the Exa search provider with `ctx.web`. */ +export function apply(ctx: Context, config: Config): void { + const apiKey = config.apiKey ?? process.env.EXA_API_KEY ?? '' + const baseURL = config.baseURL ?? EXA_DEFAULT_BASE_URL + ctx.web.registerSearchProvider(new ExaSearchProvider({ apiKey, baseURL })) +} diff --git a/packages/web/web-search-exa/src/provider.ts b/packages/web/web-search-exa/src/provider.ts new file mode 100644 index 0000000000..d7c464059a --- /dev/null +++ b/packages/web/web-search-exa/src/provider.ts @@ -0,0 +1,130 @@ +/** + * `ExaSearchProvider`: a `WebSearchProvider` backed by the Exa search API + * (`POST /search` with highlight contents). Maps Exa's flat `results[]` into the + * seam's normalized `WebSearchResult`. Exa returns no provider-generated answer, + * so `content` is omitted; each result maps to a `WebSearchSource` with `url`, + * `title`, the first highlight as `snippet`, and `publishedDate` as + * `publishedAt`. + * + * Network requests use platform-native `fetch` (Node 24), mirroring + * `@deepseek-ai/dsh-llm-deepseek`'s adapter — not a cordis HTTP-client service. + * + * @module @deepseek-ai/dsh-web-search-exa/provider + */ + +import { WebError } from '@deepseek-ai/dsh-web' +import type { + WebProviderStatus, + WebSearchProvider, + WebSearchRequest, + WebSearchResult, + WebSearchSource, +} from '@deepseek-ai/dsh-web' +import type { ExaError, ExaResult, ExaSearchResponse } from './types.ts' + +/** Stable id this provider registers under. */ +export const EXA_PROVIDER_ID = 'exa' + +/** Default Exa search endpoint; `/search` is the operation. */ +export const EXA_DEFAULT_BASE_URL = 'https://api.exa.ai' + +/** Attribution header sent on every request. Bump with the package version. */ +const USER_AGENT = 'deepseek-harness/0.0.1' + +export interface ExaSearchProviderOptions { + /** Exa API key. Empty/absent → `status()` reports `missing-credential`. */ + apiKey: string + /** Endpoint base; `/search` is appended. */ + baseURL: string +} + +/** + * Map one Exa result to a normalized source, or `undefined` when it carries no + * portable snippet (an entry with no highlight is dropped — the seam has no + * other field to derive a snippet from, and inventing one would lie). + */ +export function mapExaResult(result: ExaResult): WebSearchSource | undefined { + const snippet = result.highlights?.find(highlight => highlight.trim().length > 0) + if (snippet === undefined) return undefined + return { + url: result.url, + ...result.title != null && result.title.length > 0 ? { title: result.title } : {}, + snippet, + ...result.publishedDate != null && result.publishedDate.length > 0 ? { publishedAt: result.publishedDate } : {}, + } +} + +/** Map an Exa response envelope to a normalized search result. */ +export function mapExaResponse(query: string, response: ExaSearchResponse): WebSearchResult { + const sources = (response.results ?? []) + .map(mapExaResult) + .filter((source): source is WebSearchSource => source !== undefined) + // Exa returns no generated answer, so `content` is omitted. The seam owns the + // final `maxResults` truncation, so this provider reports `truncated: false`. + return { providerId: EXA_PROVIDER_ID, query, sources, truncated: false } +} + +/** The Exa-backed search provider. */ +export class ExaSearchProvider implements WebSearchProvider { + readonly id = EXA_PROVIDER_ID + + constructor(private readonly options: ExaSearchProviderOptions) {} + + status(): WebProviderStatus { + if (this.options.apiKey.length === 0) return { available: false, reason: 'missing-credential' } + return { available: true } + } + + async search(request: WebSearchRequest, exec?: { readonly signal?: AbortSignal }): Promise { + let response: Response + try { + response = await fetch(`${this.options.baseURL}/search`, { + method: 'POST', + headers: { + 'authorization': `Bearer ${this.options.apiKey}`, + 'content-type': 'application/json', + 'accept': 'application/json', + 'user-agent': USER_AGENT, + }, + body: JSON.stringify({ + query: request.query, + contents: { highlights: true }, + ...request.maxResults !== undefined ? { numResults: request.maxResults } : {}, + }), + ...exec?.signal ? { signal: exec.signal } : {}, + }) + } catch (error: unknown) { + if (isAbortError(error)) throw new WebError('Exa search aborted', 'WEB_ABORTED', { cause: error }) + throw new WebError(`Exa search request failed: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) + } + + if (!response.ok) { + const status = response.status + let message = `Exa API error (HTTP ${status})` + try { + const parsed = await response.json() as ExaError + const detail = parsed.error ?? parsed.message + if (detail !== undefined && detail.length > 0) message = detail + } catch { + // The HTTP status is already captured in `message` above; a malformed or + // non-JSON error body (normal for gateway 5xx/429s) can only cost a + // richer provider message, never the real error. `response.json()` is + // the sole statement and nothing else of consequence reaches here. + } + throw new WebError(message, 'WEB_PROVIDER_ERROR') + } + + let payload: ExaSearchResponse + try { + payload = await response.json() as ExaSearchResponse + } catch (error: unknown) { + throw new WebError(`Exa returned an unparseable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) + } + return mapExaResponse(request.query, payload) + } +} + +/** True for a fetch/`AbortSignal` abort, surfaced as `WEB_ABORTED`. */ +function isAbortError(error: unknown): boolean { + return error instanceof DOMException && error.name === 'AbortError' +} diff --git a/packages/web/web-search-exa/src/types.ts b/packages/web/web-search-exa/src/types.ts new file mode 100644 index 0000000000..a0bda5f768 --- /dev/null +++ b/packages/web/web-search-exa/src/types.ts @@ -0,0 +1,36 @@ +/** + * Wire types for the Exa search API (`POST https://api.exa.ai/search`). Types + * only — no runtime code. Exa returns a flat `results[]`; each entry carries a + * URL, optional title, optional `publishedDate`, and (when highlights are + * requested) a `highlights[]` array of salient sentences. + * + * @module @deepseek-ai/dsh-web-search-exa/types + */ + +/** Request body sent to Exa's search endpoint. */ +export interface ExaSearchRequest { + query: string + /** Exa's result-count control; the seam still enforces the bound on return. */ + numResults?: number + /** Ask Exa to return highlight sentences per result. */ + contents: { highlights: true } +} + +/** One entry of Exa's flat `results[]`. */ +export interface ExaResult { + url: string + title?: string | null + publishedDate?: string | null + highlights?: string[] +} + +/** Exa's search response envelope. */ +export interface ExaSearchResponse { + results?: ExaResult[] +} + +/** Exa's error response envelope (best-effort; fields vary by failure). */ +export interface ExaError { + error?: string + message?: string +} diff --git a/packages/web/web-search-exa/tests/exa.e2e.ts b/packages/web/web-search-exa/tests/exa.e2e.ts new file mode 100644 index 0000000000..78f11940e5 --- /dev/null +++ b/packages/web/web-search-exa/tests/exa.e2e.ts @@ -0,0 +1,19 @@ +import { describe, expect, it } from 'vitest' +import { ExaSearchProvider, EXA_DEFAULT_BASE_URL } from '@deepseek-ai/dsh-web-search-exa' + +/** + * Real-API smoke for the Exa search provider. Self-skips without `$EXA_API_KEY` + * (CI has no secrets), per the with-key e2e policy in AGENTS.md § Secrets. + */ +const apiKey = process.env.EXA_API_KEY +const maybe = apiKey !== undefined && apiKey.length > 0 ? describe : describe.skip + +maybe('ExaSearchProvider real API', () => { + it('returns sources for a live query', async () => { + const provider = new ExaSearchProvider({ apiKey: apiKey!, baseURL: process.env.EXA_BASE_URL ?? EXA_DEFAULT_BASE_URL }) + const result = await provider.search({ query: 'DeepSeek coding agent', maxResults: 5 }) + expect(result.providerId).toBe('exa') + expect(result.sources.length).toBeGreaterThan(0) + for (const source of result.sources) expect(source.url).toMatch(/^https?:\/\//) + }, 30_000) +}) diff --git a/packages/web/web-search-exa/tests/exa.spec.ts b/packages/web/web-search-exa/tests/exa.spec.ts new file mode 100644 index 0000000000..3fdd878180 --- /dev/null +++ b/packages/web/web-search-exa/tests/exa.spec.ts @@ -0,0 +1,193 @@ +import { afterEach, describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import WebService from '@deepseek-ai/dsh-web' +import { ExaSearchProvider, mapExaResponse, mapExaResult, EXA_PROVIDER_ID } from '@deepseek-ai/dsh-web-search-exa' +import * as exaPlugin from '@deepseek-ai/dsh-web-search-exa' + +const options = { apiKey: 'exa-key', baseURL: 'https://api.exa.test' } + +function jsonResponse(body: unknown, init: ResponseInit = {}): Response { + return new Response(JSON.stringify(body), { status: 200, headers: { 'content-type': 'application/json' }, ...init }) +} + +afterEach(() => { + vi.unstubAllGlobals() +}) + +describe('Exa result mapping', () => { + it('maps a full result entry', () => { + expect(mapExaResult({ + url: 'https://a.test', + title: 'A', + publishedDate: '2026-01-01', + highlights: ['salient sentence', 'second'], + })).toEqual({ url: 'https://a.test', title: 'A', snippet: 'salient sentence', publishedAt: '2026-01-01' }) + }) + + it('drops a result with no usable highlight', () => { + expect(mapExaResult({ url: 'https://a.test', highlights: [] })).toBeUndefined() + expect(mapExaResult({ url: 'https://a.test' })).toBeUndefined() + expect(mapExaResult({ url: 'https://a.test', highlights: [' '] })).toBeUndefined() + }) + + it('omits null/empty optional fields rather than emitting them', () => { + expect(mapExaResult({ url: 'https://a.test', title: null, publishedDate: null, highlights: ['hi'] })) + .toEqual({ url: 'https://a.test', snippet: 'hi' }) + expect(mapExaResult({ url: 'https://a.test', title: '', publishedDate: '', highlights: ['hi'] })) + .toEqual({ url: 'https://a.test', snippet: 'hi' }) + }) + + it('maps a response to a result with no content and filtered sources', () => { + const result = mapExaResponse('q', { + results: [ + { url: 'https://a.test', highlights: ['one'] }, + { url: 'https://b.test' }, + { url: 'https://c.test', title: 'C', highlights: ['three'] }, + ], + }) + expect(result).toEqual({ + providerId: EXA_PROVIDER_ID, + query: 'q', + sources: [ + { url: 'https://a.test', snippet: 'one' }, + { url: 'https://c.test', title: 'C', snippet: 'three' }, + ], + truncated: false, + }) + expect(result.content).toBeUndefined() + }) + + it('tolerates a missing results array', () => { + expect(mapExaResponse('q', {}).sources).toEqual([]) + }) +}) + +describe('ExaSearchProvider status', () => { + it('is unavailable without a key', () => { + expect(new ExaSearchProvider({ apiKey: '', baseURL: options.baseURL }).status()) + .toEqual({ available: false, reason: 'missing-credential' }) + }) + + it('is available with a key', () => { + expect(new ExaSearchProvider(options).status()).toEqual({ available: true }) + }) +}) + +describe('ExaSearchProvider request mapping', () => { + it('sends query, highlights, numResults and bearer auth', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ results: [{ url: 'https://a.test', highlights: ['hi'] }] })) + vi.stubGlobal('fetch', fetchMock) + + const provider = new ExaSearchProvider(options) + await provider.search({ query: 'hello', maxResults: 5 }) + + expect(fetchMock).toHaveBeenCalledOnce() + const [url, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(url).toBe('https://api.exa.test/search') + expect((init.headers as Record)['authorization']).toBe('Bearer exa-key') + expect(JSON.parse(init.body as string)).toEqual({ query: 'hello', contents: { highlights: true }, numResults: 5 }) + }) + + it('omits numResults when maxResults is absent', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ results: [] })) + vi.stubGlobal('fetch', fetchMock) + await new ExaSearchProvider(options).search({ query: 'q' }) + const [, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(JSON.parse(init.body as string)).not.toHaveProperty('numResults') + }) + + it('forwards the abort signal', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ results: [] })) + vi.stubGlobal('fetch', fetchMock) + const controller = new AbortController() + await new ExaSearchProvider(options).search({ query: 'q' }, { signal: controller.signal }) + const [, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(init.signal).toBe(controller.signal) + }) +}) + +describe('ExaSearchProvider error handling', () => { + it('maps an HTTP error to WEB_PROVIDER_ERROR with the provider message', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({ error: 'bad key' }, { status: 401 }))) + await expect(new ExaSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR', message: 'bad key' })) + }) + + it('keeps a status-line message when the error body is not JSON', async () => { + vi.stubGlobal('fetch', vi.fn(async () => new Response('gateway down', { status: 502 }))) + await expect(new ExaSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR', message: 'Exa API error (HTTP 502)' })) + }) + + it('keeps the status-line message when the JSON error body carries no detail', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({}, { status: 500 }))) + await expect(new ExaSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ message: 'Exa API error (HTTP 500)' })) + }) + + it('maps a network failure to WEB_PROVIDER_ERROR', async () => { + vi.stubGlobal('fetch', vi.fn(() => Promise.reject(new TypeError('connection refused')))) + await expect(new ExaSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + + it('maps an abort to WEB_ABORTED', async () => { + vi.stubGlobal('fetch', vi.fn(() => Promise.reject(new DOMException('aborted', 'AbortError')))) + await expect(new ExaSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + + it('maps an unparseable success body to WEB_PROVIDER_ERROR', async () => { + vi.stubGlobal('fetch', vi.fn(async () => new Response('not json', { status: 200 }))) + await expect(new ExaSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) +}) + +describe('web-search-exa plugin registration', () => { + it('registers the provider into ctx.web (HMR-safe)', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: EXA_PROVIDER_ID }) + const fiber = await ctx.plugin(exaPlugin, { apiKey: 'exa-key' }) + expect(ctx.web.searchStatus()).toEqual({ available: true, providerId: EXA_PROVIDER_ID }) + await fiber.dispose() + expect(ctx.web.searchStatus()).toEqual({ available: false, reason: 'configured-missing' }) + }) + + it('has no default export (namespace plugin export shape)', () => { + expect('default' in exaPlugin).toBe(false) + }) + + it('falls back to $EXA_API_KEY and the default base URL when config omits them', async () => { + const prev = process.env.EXA_API_KEY + process.env.EXA_API_KEY = 'env-key' + try { + const fetchMock = vi.fn(async () => jsonResponse({ results: [] })) + vi.stubGlobal('fetch', fetchMock) + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: EXA_PROVIDER_ID }) + const fiber = await ctx.plugin(exaPlugin, {}) + expect(ctx.web.searchStatus()).toEqual({ available: true, providerId: EXA_PROVIDER_ID }) + await ctx.web.search({ query: 'q' }) + const [url] = fetchMock.mock.calls[0] as unknown as [string] + expect(url).toBe('https://api.exa.ai/search') + await fiber.dispose() + } finally { + if (prev === undefined) delete process.env.EXA_API_KEY + else process.env.EXA_API_KEY = prev + } + }) + + it('is unavailable when neither config nor env supplies a key', async () => { + const prev = process.env.EXA_API_KEY + delete process.env.EXA_API_KEY + try { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: EXA_PROVIDER_ID }) + await ctx.plugin(exaPlugin, {}) + expect(ctx.web.searchStatus()).toEqual({ available: false, reason: 'configured-unavailable' }) + } finally { + if (prev !== undefined) process.env.EXA_API_KEY = prev + } + }) +}) diff --git a/packages/web/web-search-exa/tsconfig.json b/packages/web/web-search-exa/tsconfig.json new file mode 100644 index 0000000000..cb9eb44552 --- /dev/null +++ b/packages/web/web-search-exa/tsconfig.json @@ -0,0 +1,24 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../web" + } + ] +} diff --git a/packages/web/web-search-perplexity/README.md b/packages/web/web-search-perplexity/README.md new file mode 100644 index 0000000000..3850e5e9c1 --- /dev/null +++ b/packages/web/web-search-perplexity/README.md @@ -0,0 +1,24 @@ +# @deepseek-ai/dsh-web-search-perplexity + +A [Perplexity](https://perplexity.ai)-backed `WebSearchProvider` for the harness [web capability seam](../web/README.md) (`ctx.web`). It calls Perplexity's OpenAI-compatible `POST /chat/completions` endpoint and maps the generated answer plus citations into the seam's normalized `WebSearchResult`. + +This is an **implementation** package: it registers a provider into `ctx.web`, it does not own the key and it does not register a model-facing tool. Like `@deepseek-ai/dsh-llm-deepseek`, it is a function/namespace plugin (`inject: ['web']`). The OpenAI-compatible wire shape is a provider-private detail — it does **not** make this provider depend on `ctx.llm`. + +## Config + +| Key | Default | Meaning | +|---|---|---| +| `apiKey` | `$PERPLEXITY_API_KEY` | Perplexity API key. Empty/absent → provider `status()` reports `missing-credential`. | +| `baseURL` | `https://api.perplexity.ai` | Endpoint base; `/chat/completions` is appended. | +| `model` | `sonar` | Search model name. | + +```yaml +- id: web-search-perplexity + name: '@deepseek-ai/dsh-web-search-perplexity' + config: + apiKey: !!js process.env.PERPLEXITY_API_KEY +``` + +## Mapping + +`content` ← `choices[0].message.content` (the generated answer). `sources[]` prefers the structured `search_results[]` (`url`, `title`, `snippet`, `publishedAt` ← `date`), falling back to the URL-only `citations[]` array only when `search_results` is absent — those sources carry just a `url`, which is why `title`/`snippet`/`publishedAt` are optional on the seam. Provider failures surface as `WebError` `WEB_PROVIDER_ERROR`; an aborted request surfaces as `WEB_ABORTED`. Perplexity has no result-count control, so `maxResults` is enforced by the seam (truncating `sources[]` and setting `truncated`). diff --git a/packages/web/web-search-perplexity/package.json b/packages/web/web-search-perplexity/package.json new file mode 100644 index 0000000000..1d6229eae4 --- /dev/null +++ b/packages/web/web-search-perplexity/package.json @@ -0,0 +1,33 @@ +{ + "name": "@deepseek-ai/dsh-web-search-perplexity", + "description": "Perplexity-backed search provider for the DeepSeek Harness web capability seam (ctx.web)", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/index.d.ts", + "exports": { + ".": { + "types": "./lib/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-web": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-web": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/web/web-search-perplexity/src/index.ts b/packages/web/web-search-perplexity/src/index.ts new file mode 100644 index 0000000000..0fd46ffb71 --- /dev/null +++ b/packages/web/web-search-perplexity/src/index.ts @@ -0,0 +1,52 @@ +/** + * `@deepseek-ai/dsh-web-search-perplexity`: registers a Perplexity-backed + * `WebSearchProvider` with `ctx.web`. A function/namespace plugin (NOT a + * default-export service): it registers INTO the seam's provider registry, like + * `@deepseek-ai/dsh-llm-deepseek` registers an adapter into `ctx.llm`. + * + * @module @deepseek-ai/dsh-web-search-perplexity + */ + +import type { Context } from 'cordis' +import z from 'schemastery' +import type {} from '@deepseek-ai/dsh-web' +import { PerplexitySearchProvider, PERPLEXITY_DEFAULT_BASE_URL, PERPLEXITY_DEFAULT_MODEL } from './provider.ts' + +export { + PERPLEXITY_DEFAULT_BASE_URL, + PERPLEXITY_DEFAULT_MODEL, + PERPLEXITY_PROVIDER_ID, + PerplexitySearchProvider, + mapPerplexityResponse, + mapPerplexityResult, +} from './provider.ts' +export type { PerplexitySearchProviderOptions } from './provider.ts' + +/** Cordis plugin name used by loader diagnostics. */ +export const name = 'web-search-perplexity' + +/** The web seam this provider registers into. */ +export const inject = ['web'] + +export interface Config { + /** Perplexity API key. Falls back to `$PERPLEXITY_API_KEY`. Empty → unavailable. */ + apiKey?: string + /** Endpoint base; `/chat/completions` is appended. Defaults to the public API. */ + baseURL?: string + /** Search model name. Defaults to `sonar`. */ + model?: string +} + +export const Config: z = z.object({ + apiKey: z.string(), + baseURL: z.string(), + model: z.string(), +}) + +/** Register the Perplexity search provider with `ctx.web`. */ +export function apply(ctx: Context, config: Config): void { + const apiKey = config.apiKey ?? process.env.PERPLEXITY_API_KEY ?? '' + const baseURL = config.baseURL ?? PERPLEXITY_DEFAULT_BASE_URL + const model = config.model ?? PERPLEXITY_DEFAULT_MODEL + ctx.web.registerSearchProvider(new PerplexitySearchProvider({ apiKey, baseURL, model })) +} diff --git a/packages/web/web-search-perplexity/src/provider.ts b/packages/web/web-search-perplexity/src/provider.ts new file mode 100644 index 0000000000..2b596414dd --- /dev/null +++ b/packages/web/web-search-perplexity/src/provider.ts @@ -0,0 +1,138 @@ +/** + * `PerplexitySearchProvider`: a `WebSearchProvider` backed by the Perplexity + * search API (an OpenAI-compatible `POST /chat/completions`). Maps the generated + * answer (`choices[0].message.content`) into `content`, and prefers the + * structured `search_results[]` for `sources[]`, falling back to the URL-only + * `citations[]` when `search_results` is absent. + * + * Network requests use platform-native `fetch` (Node 24), mirroring + * `@deepseek-ai/dsh-llm-deepseek`'s adapter. The OpenAI-compatible request shape + * is a provider-private detail and does NOT make this provider depend on + * `ctx.llm`. + * + * @module @deepseek-ai/dsh-web-search-perplexity/provider + */ + +import { WebError } from '@deepseek-ai/dsh-web' +import type { + WebProviderStatus, + WebSearchProvider, + WebSearchRequest, + WebSearchResult, + WebSearchSource, +} from '@deepseek-ai/dsh-web' +import type { PerplexityError, PerplexityResponse, PerplexitySearchResult } from './types.ts' + +/** Stable id this provider registers under. */ +export const PERPLEXITY_PROVIDER_ID = 'perplexity' + +/** Default Perplexity endpoint; `/chat/completions` is the operation. */ +export const PERPLEXITY_DEFAULT_BASE_URL = 'https://api.perplexity.ai' + +/** Default search model. */ +export const PERPLEXITY_DEFAULT_MODEL = 'sonar' + +/** Attribution header sent on every request. Bump with the package version. */ +const USER_AGENT = 'deepseek-harness/0.0.1' + +export interface PerplexitySearchProviderOptions { + /** Perplexity API key. Empty/absent → `status()` reports `missing-credential`. */ + apiKey: string + /** Endpoint base; `/chat/completions` is appended. */ + baseURL: string + /** Search model name. */ + model: string +} + +/** Map one structured Perplexity search result to a normalized source. */ +export function mapPerplexityResult(result: PerplexitySearchResult): WebSearchSource { + return { + url: result.url, + ...result.title != null && result.title.length > 0 ? { title: result.title } : {}, + ...result.snippet != null && result.snippet.length > 0 ? { snippet: result.snippet } : {}, + ...result.date != null && result.date.length > 0 ? { publishedAt: result.date } : {}, + } +} + +/** + * Map a Perplexity response envelope to a normalized search result. Prefers + * structured `search_results[]`; falls back to URL-only `citations[]` (those + * sources carry just a `url`) only when `search_results` is absent. + */ +export function mapPerplexityResponse(query: string, response: PerplexityResponse): WebSearchResult { + const content = response.choices?.[0]?.message?.content + const sources: WebSearchSource[] = response.search_results !== undefined + ? response.search_results.map(mapPerplexityResult) + : (response.citations ?? []).map(url => ({ url })) + return { + providerId: PERPLEXITY_PROVIDER_ID, + query, + ...content != null && content.length > 0 ? { content } : {}, + sources, + truncated: false, + } +} + +/** The Perplexity-backed search provider. */ +export class PerplexitySearchProvider implements WebSearchProvider { + readonly id = PERPLEXITY_PROVIDER_ID + + constructor(private readonly options: PerplexitySearchProviderOptions) {} + + status(): WebProviderStatus { + if (this.options.apiKey.length === 0) return { available: false, reason: 'missing-credential' } + return { available: true } + } + + async search(request: WebSearchRequest, exec?: { readonly signal?: AbortSignal }): Promise { + let response: Response + try { + response = await fetch(`${this.options.baseURL}/chat/completions`, { + method: 'POST', + headers: { + 'authorization': `Bearer ${this.options.apiKey}`, + 'content-type': 'application/json', + 'accept': 'application/json', + 'user-agent': USER_AGENT, + }, + body: JSON.stringify({ + model: this.options.model, + messages: [{ role: 'user', content: request.query }], + }), + ...exec?.signal ? { signal: exec.signal } : {}, + }) + } catch (error: unknown) { + if (isAbortError(error)) throw new WebError('Perplexity search aborted', 'WEB_ABORTED', { cause: error }) + throw new WebError(`Perplexity search request failed: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) + } + + if (!response.ok) { + const status = response.status + let message = `Perplexity API error (HTTP ${status})` + try { + const parsed = await response.json() as PerplexityError + const detail = typeof parsed.error === 'string' ? parsed.error : parsed.error?.message ?? parsed.message + if (detail !== undefined && detail.length > 0) message = detail + } catch { + // The HTTP status is already captured in `message` above; a malformed or + // non-JSON error body (normal for gateway 5xx/429s) can only cost a + // richer provider message, never the real error. `response.json()` is + // the sole statement and nothing else of consequence reaches here. + } + throw new WebError(message, 'WEB_PROVIDER_ERROR') + } + + let payload: PerplexityResponse + try { + payload = await response.json() as PerplexityResponse + } catch (error: unknown) { + throw new WebError(`Perplexity returned an unparseable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) + } + return mapPerplexityResponse(request.query, payload) + } +} + +/** True for a fetch/`AbortSignal` abort, surfaced as `WEB_ABORTED`. */ +function isAbortError(error: unknown): boolean { + return error instanceof DOMException && error.name === 'AbortError' +} diff --git a/packages/web/web-search-perplexity/src/types.ts b/packages/web/web-search-perplexity/src/types.ts new file mode 100644 index 0000000000..7b1f2e32b0 --- /dev/null +++ b/packages/web/web-search-perplexity/src/types.ts @@ -0,0 +1,41 @@ +/** + * Wire types for the Perplexity search API + * (`POST https://api.perplexity.ai/chat/completions`, an OpenAI-compatible chat + * shape). Types only — no runtime code. Perplexity returns a generated answer in + * `choices[0].message.content` plus citation surfaces: a structured + * `search_results[]` (preferred) and a URL-only `citations[]` fallback. + * + * The OpenAI-compatible wire shape is a provider-private detail; it does not make + * this provider depend on `ctx.llm`. + * + * @module @deepseek-ai/dsh-web-search-perplexity/types + */ + +/** Request body sent to Perplexity's chat-completions endpoint. */ +export interface PerplexityRequest { + model: string + messages: { role: 'user'; content: string }[] +} + +/** One structured search result (the preferred citation surface). */ +export interface PerplexitySearchResult { + url: string + title?: string | null + snippet?: string | null + date?: string | null +} + +/** Perplexity's response envelope. */ +export interface PerplexityResponse { + choices?: { message?: { content?: string | null } }[] + /** Structured citation surface (preferred). */ + search_results?: PerplexitySearchResult[] + /** URL-only citation fallback. */ + citations?: string[] +} + +/** Perplexity's error response envelope (best-effort; fields vary). */ +export interface PerplexityError { + error?: { message?: string } | string + message?: string +} diff --git a/packages/web/web-search-perplexity/tests/perplexity.e2e.ts b/packages/web/web-search-perplexity/tests/perplexity.e2e.ts new file mode 100644 index 0000000000..a546acab70 --- /dev/null +++ b/packages/web/web-search-perplexity/tests/perplexity.e2e.ts @@ -0,0 +1,23 @@ +import { describe, expect, it } from 'vitest' +import { PerplexitySearchProvider, PERPLEXITY_DEFAULT_BASE_URL, PERPLEXITY_DEFAULT_MODEL } from '@deepseek-ai/dsh-web-search-perplexity' + +/** + * Real-API smoke for the Perplexity search provider. Self-skips without + * `$PERPLEXITY_API_KEY`, per the with-key e2e policy in AGENTS.md § Secrets. + */ +const apiKey = process.env.PERPLEXITY_API_KEY +const maybe = apiKey !== undefined && apiKey.length > 0 ? describe : describe.skip + +maybe('PerplexitySearchProvider real API', () => { + it('returns a generated answer and sources for a live query', async () => { + const provider = new PerplexitySearchProvider({ + apiKey: apiKey!, + baseURL: process.env.PERPLEXITY_BASE_URL ?? PERPLEXITY_DEFAULT_BASE_URL, + model: process.env.PERPLEXITY_MODEL ?? PERPLEXITY_DEFAULT_MODEL, + }) + const result = await provider.search({ query: 'What is the DeepSeek coding agent?', maxResults: 5 }) + expect(result.providerId).toBe('perplexity') + expect(result.content ?? '').not.toBe('') + for (const source of result.sources) expect(source.url).toMatch(/^https?:\/\//) + }, 30_000) +}) diff --git a/packages/web/web-search-perplexity/tests/perplexity.spec.ts b/packages/web/web-search-perplexity/tests/perplexity.spec.ts new file mode 100644 index 0000000000..16557af888 --- /dev/null +++ b/packages/web/web-search-perplexity/tests/perplexity.spec.ts @@ -0,0 +1,192 @@ +import { afterEach, describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import WebService from '@deepseek-ai/dsh-web' +import { + PerplexitySearchProvider, + mapPerplexityResponse, + PERPLEXITY_PROVIDER_ID, +} from '@deepseek-ai/dsh-web-search-perplexity' +import * as perplexityPlugin from '@deepseek-ai/dsh-web-search-perplexity' + +const options = { apiKey: 'pplx-key', baseURL: 'https://api.perplexity.test', model: 'sonar' } + +function jsonResponse(body: unknown, init: ResponseInit = {}): Response { + return new Response(JSON.stringify(body), { status: 200, headers: { 'content-type': 'application/json' }, ...init }) +} + +afterEach(() => { + vi.unstubAllGlobals() +}) + +describe('Perplexity response mapping', () => { + it('maps the answer and prefers structured search_results', () => { + const result = mapPerplexityResponse('q', { + choices: [{ message: { content: 'the answer' } }], + search_results: [ + { url: 'https://a.test', title: 'A', snippet: 'snip', date: '2026-02-02' }, + { url: 'https://b.test' }, + ], + citations: ['https://ignored.test'], + }) + expect(result).toEqual({ + providerId: PERPLEXITY_PROVIDER_ID, + query: 'q', + content: 'the answer', + sources: [ + { url: 'https://a.test', title: 'A', snippet: 'snip', publishedAt: '2026-02-02' }, + { url: 'https://b.test' }, + ], + truncated: false, + }) + }) + + it('falls back to URL-only citations when search_results is absent', () => { + const result = mapPerplexityResponse('q', { + choices: [{ message: { content: 'answer' } }], + citations: ['https://a.test', 'https://b.test'], + }) + expect(result.sources).toEqual([{ url: 'https://a.test' }, { url: 'https://b.test' }]) + }) + + it('omits content when the answer is empty or missing', () => { + expect(mapPerplexityResponse('q', { citations: [] }).content).toBeUndefined() + expect(mapPerplexityResponse('q', { choices: [{ message: { content: '' } }] }).content).toBeUndefined() + expect(mapPerplexityResponse('q', { choices: [{ message: { content: null } }] }).content).toBeUndefined() + }) + + it('omits null/empty optional source fields', () => { + const result = mapPerplexityResponse('q', { + search_results: [{ url: 'https://a.test', title: null, snippet: '', date: null }], + }) + expect(result.sources).toEqual([{ url: 'https://a.test' }]) + }) + + it('yields no sources when neither search_results nor citations are present', () => { + expect(mapPerplexityResponse('q', { choices: [{ message: { content: 'a' } }] }).sources).toEqual([]) + }) +}) + +describe('PerplexitySearchProvider status', () => { + it('is unavailable without a key', () => { + expect(new PerplexitySearchProvider({ ...options, apiKey: '' }).status()) + .toEqual({ available: false, reason: 'missing-credential' }) + }) + + it('is available with a key', () => { + expect(new PerplexitySearchProvider(options).status()).toEqual({ available: true }) + }) +}) + +describe('PerplexitySearchProvider request mapping', () => { + it('sends a chat-completions request with the query as a user message', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ choices: [{ message: { content: 'a' } }], citations: [] })) + vi.stubGlobal('fetch', fetchMock) + await new PerplexitySearchProvider(options).search({ query: 'hello' }) + const [url, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(url).toBe('https://api.perplexity.test/chat/completions') + expect((init.headers as Record)['authorization']).toBe('Bearer pplx-key') + expect(JSON.parse(init.body as string)).toEqual({ model: 'sonar', messages: [{ role: 'user', content: 'hello' }] }) + }) + + it('forwards the abort signal', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ citations: [] })) + vi.stubGlobal('fetch', fetchMock) + const controller = new AbortController() + await new PerplexitySearchProvider(options).search({ query: 'q' }, { signal: controller.signal }) + const [, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(init.signal).toBe(controller.signal) + }) +}) + +describe('PerplexitySearchProvider error handling', () => { + it('maps an HTTP error to WEB_PROVIDER_ERROR with the provider message', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({ error: { message: 'rate limited' } }, { status: 429 }))) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR', message: 'rate limited' })) + }) + + it('handles a string-form error body', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({ error: 'bad request' }, { status: 400 }))) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ message: 'bad request' })) + }) + + it('keeps a status-line message when the error body is not JSON', async () => { + vi.stubGlobal('fetch', vi.fn(async () => new Response('upstream error', { status: 503 }))) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ message: 'Perplexity API error (HTTP 503)' })) + }) + + it('keeps the status-line message when the JSON error body carries no detail', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({}, { status: 500 }))) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ message: 'Perplexity API error (HTTP 500)' })) + }) + + it('maps an abort to WEB_ABORTED', async () => { + vi.stubGlobal('fetch', vi.fn(() => Promise.reject(new DOMException('aborted', 'AbortError')))) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + + it('maps an unparseable success body to WEB_PROVIDER_ERROR', async () => { + vi.stubGlobal('fetch', vi.fn(async () => new Response('not json', { status: 200 }))) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + + it('maps a network failure to WEB_PROVIDER_ERROR', async () => { + vi.stubGlobal('fetch', vi.fn(() => Promise.reject(new TypeError('connection refused')))) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) +}) + +describe('web-search-perplexity plugin registration', () => { + it('registers the provider into ctx.web (HMR-safe)', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: PERPLEXITY_PROVIDER_ID }) + const fiber = await ctx.plugin(perplexityPlugin, { apiKey: 'pplx-key' }) + expect(ctx.web.searchStatus()).toEqual({ available: true, providerId: PERPLEXITY_PROVIDER_ID }) + await fiber.dispose() + expect(ctx.web.searchStatus()).toEqual({ available: false, reason: 'configured-missing' }) + }) + + it('has no default export (namespace plugin export shape)', () => { + expect('default' in perplexityPlugin).toBe(false) + }) + + it('falls back to env key and defaults for base URL and model when config omits them', async () => { + const prev = process.env.PERPLEXITY_API_KEY + process.env.PERPLEXITY_API_KEY = 'env-key' + try { + const fetchMock = vi.fn(async () => jsonResponse({ choices: [{ message: { content: 'a' } }], citations: [] })) + vi.stubGlobal('fetch', fetchMock) + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: PERPLEXITY_PROVIDER_ID }) + const fiber = await ctx.plugin(perplexityPlugin, {}) + expect(ctx.web.searchStatus()).toEqual({ available: true, providerId: PERPLEXITY_PROVIDER_ID }) + await ctx.web.search({ query: 'q' }) + const [url, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(url).toBe('https://api.perplexity.ai/chat/completions') + expect(JSON.parse(init.body as string)).toMatchObject({ model: 'sonar' }) + await fiber.dispose() + } finally { + if (prev === undefined) delete process.env.PERPLEXITY_API_KEY + else process.env.PERPLEXITY_API_KEY = prev + } + }) + + it('is unavailable when neither config nor env supplies a key', async () => { + const prev = process.env.PERPLEXITY_API_KEY + delete process.env.PERPLEXITY_API_KEY + try { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: PERPLEXITY_PROVIDER_ID }) + await ctx.plugin(perplexityPlugin, {}) + expect(ctx.web.searchStatus()).toEqual({ available: false, reason: 'configured-unavailable' }) + } finally { + if (prev !== undefined) process.env.PERPLEXITY_API_KEY = prev + } + }) +}) diff --git a/packages/web/web-search-perplexity/tsconfig.json b/packages/web/web-search-perplexity/tsconfig.json new file mode 100644 index 0000000000..cb9eb44552 --- /dev/null +++ b/packages/web/web-search-perplexity/tsconfig.json @@ -0,0 +1,24 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../web" + } + ] +} diff --git a/packages/web/web/README.md b/packages/web/web/README.md new file mode 100644 index 0000000000..9b9e2ca333 --- /dev/null +++ b/packages/web/web/README.md @@ -0,0 +1,45 @@ +# @deepseek-ai/dsh-web + +The **web access seam**: an abstract `WebService` (`ctx.web`) defining WHAT web access the harness has — search the web, fetch a URL — over multiple providers, without binding the model contract to one vendor's API shape. + +This package is the interface third of the web capability. Unlike bash/fs it spans two capabilities (search and fetch) on one seam, with potentially multiple providers each: + +| Package | Role | +|---|---| +| `@deepseek-ai/dsh-web` (this) | the interface: the service, provider registries, selection policy, request/result vocabulary, the `WebError` taxonomy | +| `@deepseek-ai/dsh-web-search-exa` | a search implementation: Exa | +| `@deepseek-ai/dsh-web-search-perplexity` | a search implementation: Perplexity | +| `@deepseek-ai/dsh-web-fetch-local` | a fetch implementation: anonymous public HTTP(S) | +| `@deepseek-ai/dsh-tool-web` | the model-facing `web_search` / `web_fetch` tool schemas over `ctx.web` | + +Search and fetch share no request schema and no business logic, but they are deliberately one seam: `ctx.web` is a single web-access middle layer with one provider-selection policy owner, one abort/error vocabulary, and one product-facing "how this harness reaches the web" config surface. The cost is the parallel `Search`/`Fetch` method pairs; that parallelism is intentional, not a missed extraction. + +## Service API (`ctx.web`) + +| Member | Semantics | +|---|---| +| `registerSearchProvider(provider)` / `registerFetchProvider(provider)` | Register a backend. Throws `WebError` `WEB_DUPLICATE_PROVIDER` on a duplicate id within that capability kind. Returns a disposer; emits `web/providers-change` on register and on dispose. Disposed with the calling fiber. | +| `searchStatus()` / `fetchStatus()` | Derived (never stored) `WebCapabilityStatus`: whether the capability has a selected usable provider, or the broad category it fails in. Diagnostics + execution-resolution input. | +| `search(request, exec?)` | Resolve the search provider and run one search. Enforces `request.maxResults` on the result (truncates `sources[]`, sets `truncated`). Throws `WebError` when the capability cannot run. | +| `fetch(request, exec?)` | Resolve the fetch provider and retrieve one URL. A non-2xx response is a result, not a throw. Throws `WebError` for failures to safely retrieve or represent the resource. | + +Providers register **capabilities**, not tools. `dsh-tool-web` is the only owner of model-facing names, descriptions, prompt guidance, JSON schemas, and presentation. + +## Selection + +Selection never depends on registration, config, or HMR order. A capability has an explicit provider id (config `searchProvider`/`fetchProvider`, or env `$DSH_WEB_SEARCH_PROVIDER`/`$DSH_WEB_FETCH_PROVIDER` feeding the same fields), or auto-selects when exactly one usable provider is registered: + +| Situation | `WebCapabilityStatus` | Execution | +|---|---|---| +| configured id registered and `status().available` | `available` for it | runs | +| configured id not registered | `configured-missing` | `WEB_PROVIDER_CONFIGURED_MISSING` | +| configured id registered but unavailable | `configured-unavailable` | `WEB_PROVIDER_CONFIGURED_UNAVAILABLE` | +| no id, exactly one registered usable provider | `available` for it | runs | +| no id, no usable provider | `none` | `WEB_PROVIDER_UNAVAILABLE` | +| no id, multiple usable providers | `ambiguous` | `WEB_PROVIDER_AMBIGUOUS` | + +`WebCapabilityStatus` carries only `available` + a `reason` discriminant (plus the winning `providerId` on the available branch). The branchable per-reason detail lives in the thrown `WebError`, which is the surface callers route on — so the same fact never gets two homes that can disagree. A provider's own `status()` is a cheap local check (credential presence, parseable config) and **must not make network calls**; `dsh-tool-web` reads only the aggregated `searchStatus()`/`fetchStatus()`, never each provider's `status()` directly. + +## Vocabulary + +`WebSearchRequest` (`query`, `maxResults?`) → `WebSearchResult` (`providerId`, `query`, `content?`, `sources[]`, `truncated`); each `WebSearchSource` has a required `url` and optional `title`/`snippet`/`publishedAt` (Perplexity citations may be URL-only). `WebFetchRequest` (`url`, `timeoutMs?`) → `WebFetchResult` (`providerId`, final `url`, `statusCode`, `body`, `truncated`); `WebFetchBody` is a CLOSED discriminated union (`html` | `text`) owned here — consumers `switch` to exhaustiveness so a new kind breaks their compilation until handled. See `src/types.ts` for the full contracts and the `WebError` code taxonomy. diff --git a/packages/web/web/package.json b/packages/web/web/package.json new file mode 100644 index 0000000000..40ac10b715 --- /dev/null +++ b/packages/web/web/package.json @@ -0,0 +1,33 @@ +{ + "name": "@deepseek-ai/dsh-web", + "description": "Abstract web access capability seam (ctx.web) for the DeepSeek Harness — search/fetch provider registry, registration-order-independent selection, request/result vocabulary, and the WebError taxonomy", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/index.d.ts", + "exports": { + ".": { + "types": "./lib/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-llm": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-llm": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/web/web/src/index.ts b/packages/web/web/src/index.ts new file mode 100644 index 0000000000..172c1a0ecb --- /dev/null +++ b/packages/web/web/src/index.ts @@ -0,0 +1,270 @@ +/** + * The web access seam (`ctx.web`): a provider registry plus a provider-selecting + * execution surface for two capabilities — search and fetch. Provider packages + * register concrete backends with `registerSearchProvider` / + * `registerFetchProvider`; the model-facing consumer + * (`@deepseek-ai/dsh-tool-web`) reads capability status and executes through + * `search()` / `fetch()`. + * + * The registry half stays close to `LlmService`: a `Map` per + * capability kind, register methods that return disposers, duplicate ids that + * throw, and execution-time resolution that throws when the selected provider is + * absent or unusable. On top of that sits one small selection-status layer so + * diagnostics and execution can explain why a capability can or cannot run, + * independent of registration order. + * + * @module @deepseek-ai/dsh-web + */ + +import { Context, Service } from 'cordis' +import z from 'schemastery' +import type { + WebCapabilityStatus, + WebExecContext, + WebFetchProvider, + WebFetchRequest, + WebFetchResult, + WebProviderStatus, + WebSearchProvider, + WebSearchRequest, + WebSearchResult, +} from './types.ts' +import { WebError } from './types.ts' + +export { + WebError, +} from './types.ts' +export type { + WebCapabilityStatus, + WebErrorCode, + WebExecContext, + WebFetchBody, + WebFetchProvider, + WebFetchRequest, + WebFetchResult, + WebProviderStatus, + WebSearchProvider, + WebSearchRequest, + WebSearchResult, + WebSearchSource, +} from './types.ts' + +declare module 'cordis' { + interface Context { + web: WebService + } + + interface Events { + /** + * Fired after the provider registry changes — a search or fetch provider was + * registered or disposed. Carries no payload and no capability graph: it + * means only "the provider registry changed; observers may recompute status + * from `ctx.web`". `searchStatus()` / `fetchStatus()` stay derived, not + * stored. + * @mode emit + */ + 'web/providers-change'(this: WebService): void + } +} + +/** Selection inputs shared by the status query and execution resolution. */ +interface Selection

{ + /** The configured provider id for this capability, if any. */ + readonly configuredId?: string + /** Providers registered for this capability kind. */ + readonly providers: ReadonlyMap +} + +/** + * Config for the web seam. `searchProvider` / `fetchProvider` pin which provider + * wins for each capability; both are optional (a single registered usable + * provider auto-selects). Operational overrides such as environment variables + * must feed these same fields rather than introduce a hidden priority chain. + */ +export interface WebServiceConfig { + /** Explicit search provider id. Omitted = auto-select when exactly one usable. */ + readonly searchProvider?: string + /** Explicit fetch provider id. Omitted = auto-select when exactly one usable. */ + readonly fetchProvider?: string +} + +/** + * The web access service. Registered as `ctx.web` (one instance per context). + * + * Selection semantics (identical for status and execution, never order- + * dependent): + * - A configured id that is registered and `status().available` → that provider. + * - A configured id not registered → `configured-missing` / + * `WEB_PROVIDER_CONFIGURED_MISSING`. + * - A configured id registered but unavailable → `configured-unavailable` / + * `WEB_PROVIDER_CONFIGURED_UNAVAILABLE`. + * - No id configured, exactly one registered usable provider → that provider. + * - No id configured, multiple usable providers → `ambiguous` / + * `WEB_PROVIDER_AMBIGUOUS`. + * - No id configured, no usable provider → `none` / `WEB_PROVIDER_UNAVAILABLE`. + */ +export class WebService extends Service { + /** + * Provider selection config. Operational env overrides feed the SAME fields: + * `$DSH_WEB_SEARCH_PROVIDER` / `$DSH_WEB_FETCH_PROVIDER` are equivalent to + * `searchProvider` / `fetchProvider` and are NOT a hidden priority chain. + */ + static Config: z = z.object({ + searchProvider: z.string(), + fetchProvider: z.string(), + }) + + private searchProviders = new Map() + private fetchProviders = new Map() + private readonly searchProviderId: string | undefined + private readonly fetchProviderId: string | undefined + + constructor(ctx: Context, config: WebServiceConfig = {}) { + super(ctx, 'web') + this.searchProviderId = config.searchProvider ?? process.env.DSH_WEB_SEARCH_PROVIDER + this.fetchProviderId = config.fetchProvider ?? process.env.DSH_WEB_FETCH_PROVIDER + } + + /** + * Register a search provider. Throws {@link WebError} `WEB_DUPLICATE_PROVIDER` + * if its id is already registered for search. Returns a disposer; emits + * `web/providers-change` after a successful register and again on dispose. + * Disposed with the calling fiber. + */ + registerSearchProvider(provider: WebSearchProvider): () => void { + return this.registerProvider(this.searchProviders, provider) + } + + /** + * Register a fetch provider. Throws {@link WebError} `WEB_DUPLICATE_PROVIDER` + * if its id is already registered for fetch. Returns a disposer; emits + * `web/providers-change` after a successful register and again on dispose. + * Disposed with the calling fiber. + */ + registerFetchProvider(provider: WebFetchProvider): () => void { + return this.registerProvider(this.fetchProviders, provider) + } + + private registerProvider

(store: Map, provider: P): () => void { + if (store.has(provider.id)) { + throw new WebError(`a web provider with id "${provider.id}" is already registered`, 'WEB_DUPLICATE_PROVIDER') + } + const dispose = this.ctx.effect(function* (this: WebService) { + store.set(provider.id, provider) + // Yield the rollback BEFORE emitting `web/providers-change`: the generator + // effect collects each yielded disposer before the next step runs, so a + // throwing change listener removes the just-added provider instead of + // leaking it into the registry. + yield () => { + store.delete(provider.id) + this.ctx.emit('web/providers-change') + } + this.ctx.emit('web/providers-change') + }.bind(this), 'web.registerProvider()') + // ctx.effect's disposer returns Promise; our disposer API is + // synchronous fire-and-forget — discard the (always-resolved) promise. + return () => void dispose() + } + + /** Search-capability selection status, derived live (never stored). */ + searchStatus(): WebCapabilityStatus { + return resolveStatus({ + providers: this.searchProviders, + ...this.searchProviderId !== undefined ? { configuredId: this.searchProviderId } : {}, + }) + } + + /** Fetch-capability selection status, derived live (never stored). */ + fetchStatus(): WebCapabilityStatus { + return resolveStatus({ + providers: this.fetchProviders, + ...this.fetchProviderId !== undefined ? { configuredId: this.fetchProviderId } : {}, + }) + } + + /** + * Run one search through the selected provider. Resolves the provider at call + * time with the selection rules above; throws {@link WebError} when the + * capability cannot run. The seam enforces `request.maxResults` on the result: + * if the provider over-returns, `sources[]` is truncated and `truncated` set. + */ + async search(request: WebSearchRequest, exec?: WebExecContext): Promise { + const provider = resolveProvider({ + providers: this.searchProviders, + ...this.searchProviderId !== undefined ? { configuredId: this.searchProviderId } : {}, + }) + const result = await provider.search(request, exec) + return capSources(result, request.maxResults) + } + + /** + * Retrieve one URL through the selected provider. Resolves the provider at + * call time with the selection rules above; throws {@link WebError} when the + * capability cannot run. A non-2xx response is a result, not a throw. + */ + async fetch(request: WebFetchRequest, exec?: WebExecContext): Promise { + const provider = resolveProvider({ + providers: this.fetchProviders, + ...this.fetchProviderId !== undefined ? { configuredId: this.fetchProviderId } : {}, + }) + return provider.fetch(request, exec) + } +} + +interface ResolvableProvider { + readonly id: string + status(): WebProviderStatus +} + +/** Compute the capability status from configured id + registered providers. */ +function resolveStatus

(selection: Selection

): WebCapabilityStatus { + const { configuredId, providers } = selection + if (configuredId !== undefined) { + const provider = providers.get(configuredId) + if (!provider) return { available: false, reason: 'configured-missing' } + if (!provider.status().available) return { available: false, reason: 'configured-unavailable' } + return { available: true, providerId: configuredId } + } + const usable = [...providers.values()].filter(provider => provider.status().available) + const [single] = usable + if (single === undefined) return { available: false, reason: 'none' } + if (usable.length > 1) return { available: false, reason: 'ambiguous' } + return { available: true, providerId: single.id } +} + +/** + * Resolve the selected provider or throw the matching {@link WebError}. Shares + * the selection rules with {@link resolveStatus} so status and execution can + * never disagree. + */ +function resolveProvider

(selection: Selection

): P { + const { configuredId, providers } = selection + if (configuredId !== undefined) { + const provider = providers.get(configuredId) + if (!provider) { + throw new WebError(`configured web provider "${configuredId}" is not registered`, 'WEB_PROVIDER_CONFIGURED_MISSING') + } + if (!provider.status().available) { + throw new WebError(`configured web provider "${configuredId}" is registered but unavailable`, 'WEB_PROVIDER_CONFIGURED_UNAVAILABLE') + } + return provider + } + const usable = [...providers.values()].filter(provider => provider.status().available) + const [single] = usable + if (single === undefined) { + throw new WebError('no usable web provider is registered', 'WEB_PROVIDER_UNAVAILABLE') + } + if (usable.length > 1) { + const ids = usable.map(provider => provider.id).join(', ') + throw new WebError(`multiple usable web providers are registered (${ids}); configure one explicitly`, 'WEB_PROVIDER_AMBIGUOUS') + } + return single +} + +/** Enforce `maxResults` on a search result: truncate `sources[]` and flag it. */ +function capSources(result: WebSearchResult, maxResults: number | undefined): WebSearchResult { + if (maxResults === undefined || result.sources.length <= maxResults) return result + return { ...result, sources: result.sources.slice(0, maxResults), truncated: true } +} + +export default WebService diff --git a/packages/web/web/src/types.ts b/packages/web/web/src/types.ts new file mode 100644 index 0000000000..ec97101ae2 --- /dev/null +++ b/packages/web/web/src/types.ts @@ -0,0 +1,225 @@ +/** + * Vocabulary for the web capability seam (`ctx.web`): the search/fetch + * request/result shapes providers produce and consumers format, the provider + * and capability status discriminants selection reports, the execution-control + * context, and the typed error taxonomy. + * + * These types are shared by every provider backend + * (`@deepseek-ai/dsh-web-search-exa`, `@deepseek-ai/dsh-web-search-perplexity`, + * `@deepseek-ai/dsh-web-fetch-local`, and future backends) and by the + * model-facing consumer (`@deepseek-ai/dsh-tool-web`). Search and fetch share no + * request schema and no business logic, but they are deliberately one seam: + * `ctx.web` is a single web-access middle layer with one provider-selection + * policy, one abort/error vocabulary, and one product-facing configuration + * point. The cost is the parallel `Search`/`Fetch` shapes below; that + * parallelism is intentional. + * + * @module @deepseek-ai/dsh-web/types + */ + +import { HarnessError } from '@deepseek-ai/dsh-llm' + +/** + * Execution control threaded from the tool layer through the seam into a + * provider's network requests, stream readers, and expensive decoding. It is + * NOT business input: the first version carries only `signal` so `tool-web` can + * propagate turn cancellation, tool timeout, and agent disposal. It deliberately + * does NOT carry `ToolExecution`, which would make `dsh-web` depend on + * `dsh-tools`. + */ +export interface WebExecContext { + /** Abort signal a provider must honor for its network/decoding work. */ + readonly signal?: AbortSignal +} + +/** + * What one search-capable backend can return. The model-facing argument is just + * a query; `maxResults` is a `dsh-tool-web`-layer bound passed through unchanged + * and enforced on the way back by the seam (see {@link WebSearchResult}). + */ +export interface WebSearchRequest { + readonly query: string + /** + * Upper bound on returned sources; the seam truncates to it. Omitted = no + * bound. `dsh-tool-web` always sets it. A provider whose API supports a + * result-count control (Exa's `numResults`) should apply it at the request + * layer as a cost/latency optimization; the seam enforces the bound + * regardless. + */ + readonly maxResults?: number +} + +/** + * Normalized search outcome. `content` is optional provider-generated answer + * text or summary (Exa returns none; Perplexity returns a generated answer). + * `sources[]` is the portable citation surface. `truncated` is set by the seam + * when it cut `sources[]` down to `maxResults`. + */ +export interface WebSearchResult { + /** Id of the provider that produced this result. */ + readonly providerId: string + /** Echo of the query the provider answered. */ + readonly query: string + /** Optional provider-generated answer text, search context, or summary. */ + readonly content?: string + /** Citeable sources, already truncated to the request's `maxResults`. */ + readonly sources: readonly WebSearchSource[] + /** True when the seam dropped sources to honor `maxResults`. */ + readonly truncated: boolean +} + +/** + * One citeable source. A source always has a URL; `title`, `snippet`, and + * `publishedAt` are optional because not every provider returns them — forcing + * adapters to invent them would make the seam lie (Perplexity citations may be + * URL-only). `dsh-tool-web` renders `title ?? hostname(url)` for display. + */ +export interface WebSearchSource { + readonly url: string + readonly title?: string + readonly snippet?: string + /** Publication/crawl timestamp as a provider-supplied ISO-8601 string. */ + readonly publishedAt?: string +} + +/** + * What one fetch-capable backend is asked to retrieve. `timeoutMs` is an + * optional positive hint the provider caps. The request deliberately omits + * `format`, `prompt`, and extraction controls — those are presentation or + * higher-level LLM concerns, not safe-retrieval inputs. + */ +export interface WebFetchRequest { + readonly url: string + readonly timeoutMs?: number +} + +/** + * Normalized fetch outcome. A successful network fetch of a non-2xx response is + * a result, not an error: the status code is part of the fetched resource + * state. {@link WebError} is reserved for failures to safely retrieve or + * represent the resource. + */ +export interface WebFetchResult { + /** Id of the provider that produced this result. */ + readonly providerId: string + /** The final URL after allowed redirects (the request URL is in the request). */ + readonly url: string + /** HTTP status code of the fetched response. */ + readonly statusCode: number + /** Decoded body, classified by content kind. */ + readonly body: WebFetchBody + /** True when the provider capped the decoded body. */ + readonly truncated: boolean +} + +/** + * The decoded body of a fetched resource. A CLOSED discriminated union owned by + * `dsh-web`: the provider decodes the kind and `dsh-tool-web` renders it, so a + * new kind is a coordinated change across known packages, not a plugin + * extension. Consumers `switch` on `kind` ending in `default: assertNever(...)` + * so adding a kind breaks compilation at every consumer until handled. Each arm + * stays its own object literal even where fields coincide today, leaving room + * for arm-specific fields later (a `pdf` body's `pageCount`). + */ +export type WebFetchBody = + | { readonly kind: 'html'; readonly content: string } + | { readonly kind: 'text'; readonly content: string } + +/** + * Whether one concrete provider implementation is usable, by cheap local checks + * only (credential presence, parseable endpoint config). A provider `status()` + * must NOT make network calls. It is an input to selection, not a health system. + */ +export type WebProviderStatus = + | { readonly available: true } + | { readonly available: false; readonly reason: 'missing-credential' | 'misconfigured' } + +/** + * Whether a capability (search or fetch) has a selected usable provider, or the + * broad category in which selection fails. Intentionally small: it carries the + * winning `providerId` on the available branch (so diagnostics can report which + * provider won) but NOT the per-reason payload (the missing id, the ambiguous + * candidate set). That branchable detail lives in the {@link WebError} thrown at + * execution time — the surface callers route on — so the same fact does not get + * two homes that can disagree. + */ +export type WebCapabilityStatus = + | { readonly available: true; readonly providerId: string } + | { readonly available: false; readonly reason: 'none' | 'configured-missing' | 'configured-unavailable' | 'ambiguous' } + +/** + * A search-capable backend. Registered with `ctx.web.registerSearchProvider`. + * `id` is a stable string, unique within the search capability kind. + */ +export interface WebSearchProvider { + readonly id: string + /** Cheap local usability check; must not make network calls. */ + status(): WebProviderStatus + /** Run one search; honor `exec.signal` for cancellation. */ + search(request: WebSearchRequest, exec?: WebExecContext): Promise +} + +/** + * A fetch-capable backend. Registered with `ctx.web.registerFetchProvider`. + * `id` is a stable string, unique within the fetch capability kind. + */ +export interface WebFetchProvider { + readonly id: string + /** Cheap local usability check; must not make network calls. */ + status(): WebProviderStatus + /** Retrieve one URL; honor `exec.signal` for cancellation. */ + fetch(request: WebFetchRequest, exec?: WebExecContext): Promise +} + +/** + * Stable codes for {@link WebError}. Callers (hooks, tests, UI) route on these. + * + * - `WEB_PROVIDER_UNAVAILABLE`: no provider configured and none usable. + * - `WEB_PROVIDER_CONFIGURED_MISSING`: a configured id is not registered. + * - `WEB_PROVIDER_CONFIGURED_UNAVAILABLE`: a configured id is registered but its + * `status()` reports unavailable. + * - `WEB_PROVIDER_AMBIGUOUS`: no id configured and multiple usable providers + * exist (selection refuses to pick by registration order). + * - `WEB_DUPLICATE_PROVIDER`: a registration-time programming error — an id is + * already registered for that capability kind. + * - `WEB_INVALID_URL`: the fetch URL is malformed or not http(s). + * - `WEB_BLOCKED_URL`: the fetch URL is rejected by policy (credentials in URL). + * - `WEB_REDIRECT_BLOCKED`: a cross-origin redirect was refused. + * - `WEB_FETCH_TOO_LARGE`: the response exceeded the byte/character cap. + * - `WEB_FETCH_TIMEOUT`: the fetch exceeded its timeout. + * - `WEB_ABORTED`: the operation was aborted via `WebExecContext.signal`. + * - `WEB_UNSUPPORTED_CONTENT_TYPE`: the response content type cannot be decoded. + * - `WEB_PROVIDER_ERROR`: catch-all for a provider's own failure surfaced through + * the seam, including network/transport failure (DNS, connection refused, TLS). + */ +export type WebErrorCode = + | 'WEB_PROVIDER_UNAVAILABLE' + | 'WEB_PROVIDER_CONFIGURED_MISSING' + | 'WEB_PROVIDER_CONFIGURED_UNAVAILABLE' + | 'WEB_PROVIDER_AMBIGUOUS' + | 'WEB_DUPLICATE_PROVIDER' + | 'WEB_INVALID_URL' + | 'WEB_BLOCKED_URL' + | 'WEB_REDIRECT_BLOCKED' + | 'WEB_FETCH_TOO_LARGE' + | 'WEB_FETCH_TIMEOUT' + | 'WEB_ABORTED' + | 'WEB_UNSUPPORTED_CONTENT_TYPE' + | 'WEB_PROVIDER_ERROR' + +/** + * Typed web error. Extends {@link HarnessError} so it carries a stable + * {@link WebErrorCode} and chains `cause`. `dsh-web` owns this vocabulary so + * providers, the seam, and the tool layer raise the same codes instead of each + * inventing message strings. `ToolRegistry.execute()` converts a thrown + * `WebError` into an error tool result whose structured metadata exposes the + * code. + */ +export class WebError extends HarnessError { + override readonly code: WebErrorCode + + constructor(message: string, code: WebErrorCode, options?: ErrorOptions) { + super(message, code, options) + this.code = code + } +} diff --git a/packages/web/web/tests/web.spec.ts b/packages/web/web/tests/web.spec.ts new file mode 100644 index 0000000000..e97630ebab --- /dev/null +++ b/packages/web/web/tests/web.spec.ts @@ -0,0 +1,263 @@ +import { describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import WebService, { + WebError, + type WebFetchProvider, + type WebFetchResult, + type WebProviderStatus, + type WebSearchProvider, + type WebSearchRequest, + type WebSearchResult, +} from '@deepseek-ai/dsh-web' + +/** A scripted search provider for contract tests. */ +function makeSearchProvider( + id: string, + status: WebProviderStatus, + search: (request: WebSearchRequest) => Promise, +): WebSearchProvider { + return { id, status: () => status, search: request => search(request) } +} + +function makeFetchProvider(id: string, status: WebProviderStatus, result: WebFetchResult): WebFetchProvider { + return { id, status: () => status, fetch: () => Promise.resolve(result) } +} + +const available: WebProviderStatus = { available: true } +const unavailable: WebProviderStatus = { available: false, reason: 'missing-credential' } + +function searchResult(providerId: string, overrides: Partial = {}): WebSearchResult { + return { providerId, query: 'q', sources: [], truncated: false, ...overrides } +} + +function fetchResult(providerId: string): WebFetchResult { + return { providerId, url: 'https://example.com', statusCode: 200, body: { kind: 'text', content: 'hi' }, truncated: false } +} + +/** Mount a WebService on a fresh root context with the given config. */ +async function mountWeb(config: ConstructorParameters[1] = {}): Promise<{ ctx: Context; web: WebService }> { + const ctx = new Context() + await ctx.plugin(WebService, config) + return { ctx, web: ctx.web } +} + +describe('WebService registration', () => { + it('registers and disposes a search provider, emitting providers-change each way', async () => { + const { ctx, web } = await mountWeb() + const changed = vi.fn() + ctx.on('web/providers-change', changed) + + const dispose = web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + expect(changed).toHaveBeenCalledTimes(1) + expect(web.searchStatus()).toEqual({ available: true, providerId: 'exa' }) + + dispose() + expect(changed).toHaveBeenCalledTimes(2) + expect(web.searchStatus()).toEqual({ available: false, reason: 'none' }) + }) + + it('throws WEB_DUPLICATE_PROVIDER on a duplicate search id', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + expect(() => web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa'))))) + .toThrow(expect.objectContaining({ code: 'WEB_DUPLICATE_PROVIDER' })) + }) + + it('keeps search and fetch id namespaces independent', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('shared', available, () => Promise.resolve(searchResult('shared')))) + expect(() => web.registerFetchProvider(makeFetchProvider('shared', available, fetchResult('shared')))).not.toThrow() + }) + + it('rolls back a registration when a providers-change listener throws', async () => { + const { ctx, web } = await mountWeb() + ctx.on('web/providers-change', () => { throw new Error('listener boom') }) + expect(() => web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa'))))) + .toThrow('listener boom') + // The throwing listener must not leave the provider in the registry. + expect(web.searchStatus()).toEqual({ available: false, reason: 'none' }) + }) + + it('disposes provider registrations when the contributing fiber is disposed (HMR safety)', async () => { + const { ctx, web } = await mountWeb() + const fiber = await ctx.plugin(Object.assign((inner: Context) => { + inner.web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + }, { inject: ['web'] })) + expect(web.searchStatus()).toEqual({ available: true, providerId: 'exa' }) + await fiber.dispose() + expect(web.searchStatus()).toEqual({ available: false, reason: 'none' }) + }) +}) + +describe('WebService selection status', () => { + it('reports none when nothing is registered', async () => { + const { web } = await mountWeb() + expect(web.searchStatus()).toEqual({ available: false, reason: 'none' }) + expect(web.fetchStatus()).toEqual({ available: false, reason: 'none' }) + }) + + it('auto-selects the single usable provider when no id is configured', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + expect(web.searchStatus()).toEqual({ available: true, providerId: 'exa' }) + }) + + it('reports ambiguous when multiple usable providers exist and none is configured', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + web.registerSearchProvider(makeSearchProvider('perplexity', available, () => Promise.resolve(searchResult('perplexity')))) + expect(web.searchStatus()).toEqual({ available: false, reason: 'ambiguous' }) + }) + + it('ignores unusable providers when auto-selecting', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + web.registerSearchProvider(makeSearchProvider('perplexity', unavailable, () => Promise.resolve(searchResult('perplexity')))) + expect(web.searchStatus()).toEqual({ available: true, providerId: 'exa' }) + }) + + it('reports none when providers exist but none are usable', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', unavailable, () => Promise.resolve(searchResult('exa')))) + expect(web.searchStatus()).toEqual({ available: false, reason: 'none' }) + }) + + it('honors a configured id over a different registered provider', async () => { + const { web } = await mountWeb({ searchProvider: 'perplexity' }) + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + web.registerSearchProvider(makeSearchProvider('perplexity', available, () => Promise.resolve(searchResult('perplexity')))) + expect(web.searchStatus()).toEqual({ available: true, providerId: 'perplexity' }) + }) + + it('reports configured-missing when the configured id is not registered', async () => { + const { web } = await mountWeb({ searchProvider: 'perplexity' }) + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + expect(web.searchStatus()).toEqual({ available: false, reason: 'configured-missing' }) + }) + + it('reports configured-unavailable when the configured id is registered but unusable', async () => { + const { web } = await mountWeb({ searchProvider: 'exa' }) + web.registerSearchProvider(makeSearchProvider('exa', unavailable, () => Promise.resolve(searchResult('exa')))) + expect(web.searchStatus()).toEqual({ available: false, reason: 'configured-unavailable' }) + }) + + it('does not let registration order change auto-selection', async () => { + const a = await mountWeb() + a.web.registerSearchProvider(makeSearchProvider('exa', unavailable, () => Promise.resolve(searchResult('exa')))) + a.web.registerSearchProvider(makeSearchProvider('perplexity', available, () => Promise.resolve(searchResult('perplexity')))) + expect(a.web.searchStatus()).toEqual({ available: true, providerId: 'perplexity' }) + + const b = await mountWeb() + b.web.registerSearchProvider(makeSearchProvider('perplexity', available, () => Promise.resolve(searchResult('perplexity')))) + b.web.registerSearchProvider(makeSearchProvider('exa', unavailable, () => Promise.resolve(searchResult('exa')))) + expect(b.web.searchStatus()).toEqual({ available: true, providerId: 'perplexity' }) + }) +}) + +describe('WebService execution resolution', () => { + it('throws WEB_PROVIDER_UNAVAILABLE when nothing is registered', async () => { + const { web } = await mountWeb() + await expect(web.search({ query: 'q' })).rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_UNAVAILABLE' })) + }) + + it('throws WEB_PROVIDER_CONFIGURED_MISSING for an unregistered configured id', async () => { + const { web } = await mountWeb({ searchProvider: 'perplexity' }) + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + await expect(web.search({ query: 'q' })).rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_CONFIGURED_MISSING' })) + }) + + it('throws WEB_PROVIDER_CONFIGURED_UNAVAILABLE for an unusable configured id', async () => { + const { web } = await mountWeb({ searchProvider: 'exa' }) + web.registerSearchProvider(makeSearchProvider('exa', unavailable, () => Promise.resolve(searchResult('exa')))) + await expect(web.search({ query: 'q' })).rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_CONFIGURED_UNAVAILABLE' })) + }) + + it('throws WEB_PROVIDER_AMBIGUOUS rather than picking by order', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + web.registerSearchProvider(makeSearchProvider('perplexity', available, () => Promise.resolve(searchResult('perplexity')))) + await expect(web.search({ query: 'q' })).rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_AMBIGUOUS' })) + }) + + it('runs the selected provider and returns its result', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve( + searchResult('exa', { content: 'answer', sources: [{ url: 'https://a' }] }), + ))) + const result = await web.search({ query: 'q' }) + expect(result.providerId).toBe('exa') + expect(result.content).toBe('answer') + expect(result.sources).toEqual([{ url: 'https://a' }]) + }) + + it('propagates the abort signal to the provider', async () => { + const { web } = await mountWeb() + const seen: (AbortSignal | undefined)[] = [] + web.registerSearchProvider({ + id: 'exa', + status: () => available, + search: (_request, exec) => { seen.push(exec?.signal); return Promise.resolve(searchResult('exa')) }, + }) + const controller = new AbortController() + await web.search({ query: 'q' }, { signal: controller.signal }) + expect(seen[0]).toBe(controller.signal) + }) +}) + +describe('WebService maxResults enforcement', () => { + it('truncates sources and sets truncated when a provider over-returns', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa', { + sources: [{ url: 'https://1' }, { url: 'https://2' }, { url: 'https://3' }], + })))) + const result = await web.search({ query: 'q', maxResults: 2 }) + expect(result.sources).toHaveLength(2) + expect(result.truncated).toBe(true) + }) + + it('leaves truncated false when within the bound', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa', { + sources: [{ url: 'https://1' }], + })))) + const result = await web.search({ query: 'q', maxResults: 8 }) + expect(result.sources).toHaveLength(1) + expect(result.truncated).toBe(false) + }) + + it('does not bound when maxResults is omitted', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa', { + sources: [{ url: 'https://1' }, { url: 'https://2' }], + })))) + const result = await web.search({ query: 'q' }) + expect(result.sources).toHaveLength(2) + expect(result.truncated).toBe(false) + }) +}) + +describe('WebService fetch capability', () => { + it('resolves and runs the fetch provider independently of search', async () => { + const { web } = await mountWeb() + web.registerFetchProvider(makeFetchProvider('local-http', available, fetchResult('local-http'))) + const result = await web.fetch({ url: 'https://example.com' }) + expect(result.providerId).toBe('local-http') + expect(result.statusCode).toBe(200) + }) + + it('throws WEB_PROVIDER_UNAVAILABLE for fetch when no fetch provider is registered', async () => { + const { web } = await mountWeb() + web.registerSearchProvider(makeSearchProvider('exa', available, () => Promise.resolve(searchResult('exa')))) + await expect(web.fetch({ url: 'https://example.com' })).rejects.toThrow( + expect.objectContaining({ code: 'WEB_PROVIDER_UNAVAILABLE' }), + ) + }) +}) + +describe('WebError', () => { + it('is a HarnessError carrying its code', () => { + const error = new WebError('boom', 'WEB_INVALID_URL') + expect(error.code).toBe('WEB_INVALID_URL') + expect(error.name).toBe('WebError') + }) +}) diff --git a/packages/web/web/tsconfig.json b/packages/web/web/tsconfig.json new file mode 100644 index 0000000000..b187cddf35 --- /dev/null +++ b/packages/web/web/tsconfig.json @@ -0,0 +1,24 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../../llm/llm" + } + ] +} diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 2afc331514..a393b6c4b9 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -703,6 +703,92 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/web/tool-web: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-agent': + specifier: workspace:^ + version: link:../../core/agent + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../../core/session + '@deepseek-ai/dsh-system-prompt': + specifier: workspace:^ + version: link:../../core/system-prompt + '@deepseek-ai/dsh-tools': + specifier: workspace:^ + version: link:../../core/tools + '@deepseek-ai/dsh-web': + specifier: workspace:^ + version: link:../web + '@deepseek-ai/dsh-web-fetch-local': + specifier: workspace:^ + version: link:../web-fetch-local + '@deepseek-ai/dsh-web-search-exa': + specifier: workspace:^ + version: link:../web-search-exa + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + + packages/web/web: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-llm': + specifier: workspace:^ + version: link:../../llm/llm + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + + packages/web/web-fetch-local: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-web': + specifier: workspace:^ + version: link:../web + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + + packages/web/web-search-exa: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-web': + specifier: workspace:^ + version: link:../web + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + + packages/web/web-search-perplexity: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-web': + specifier: workspace:^ + version: link:../web + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + vendor/cordis: dependencies: '@cordisjs/plugin-include': diff --git a/tsconfig.base.json b/tsconfig.base.json index 7f46a9105a..bc4f13bdd5 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -34,6 +34,8 @@ "@cordisjs/plugin-timer": ["./vendor/timer/src"], "@cordisjs/plugin-hmr": ["./vendor/hmr/src"], "@cordisjs/plugin-logger-console": ["./vendor/logger-console/src"], + "@deepseek-ai/dsh-tool-web/search": ["./packages/web/tool-web/src/search.ts"], + "@deepseek-ai/dsh-tool-web/fetch": ["./packages/web/tool-web/src/fetch.ts"], // One wildcard maps every @deepseek-ai/dsh- to its source. Package // dir names are unique across groups, so first-on-disk-wins resolution is // unambiguous; adding a package under an existing group needs no edit @@ -45,6 +47,7 @@ "./packages/bash/*/src", "./packages/compact/*/src", "./packages/subagent/*/src", + "./packages/web/*/src", "./packages/session-persistence/*/src", "./packages/ui/*/src", "./packages/util/*/src", diff --git a/tsconfig.build.json b/tsconfig.build.json index 9d76a33385..fb7a058ea8 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -27,6 +27,11 @@ { "path": "./packages/llm/llm-pi-ai" }, { "path": "./packages/bash/bash-local" }, { "path": "./packages/bash/tool-bash" }, + { "path": "./packages/web/web" }, + { "path": "./packages/web/web-search-exa" }, + { "path": "./packages/web/web-search-perplexity" }, + { "path": "./packages/web/web-fetch-local" }, + { "path": "./packages/web/tool-web" }, { "path": "./packages/support/invariants" }, { "path": "./packages/ui/acp" }, { "path": "./packages/ui/acp-agent" }, From 567519184ba42ffd2204583327e08091ae3b5120 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Thu, 25 Jun 2026 15:28:15 +0800 Subject: [PATCH 03/32] fix: address codex review round 1 - Re-validate redirect targets through validateFetchUrl before following, so a same-origin Location carrying credentials (or a non-http(s)/over-long URL) cannot bypass the transport hygiene a direct request enforces. - Treat only DROPPED bytes as truncation: a body exactly at maxResponseBytes is no longer falsely flagged truncated (which emitted a spurious footer). - Honor the declared response charset: parse the Content-Type charset and decode with it (rejecting unsupported labels as WEB_UNSUPPORTED_CONTENT_TYPE) instead of always assuming UTF-8 and returning replacement characters. - Catalog the web seam vocabulary in docs/core-data-structures/web.md with type-equiv blocks + manifest entries, per the core-data-structures rule. --- docs/core-data-structures/core.md | 1 + docs/core-data-structures/web.md | 119 ++++++++++++++++++ packages/web/web-fetch-local/src/index.ts | 2 +- packages/web/web-fetch-local/src/policy.ts | 26 ++++ packages/web/web-fetch-local/src/provider.ts | 27 ++-- .../web-fetch-local/tests/fetch-local.spec.ts | 42 ++++++- scripts/type-equiv.manifest.json | 12 +- 7 files changed, 218 insertions(+), 11 deletions(-) create mode 100644 docs/core-data-structures/web.md diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 6d20900c93..09058a596a 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -22,6 +22,7 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | [bash.md](bash.md) | the bash executor seam: `BashExecRequest`/`Spec`, `BashRunResult`, background `BashTask`s | | [compaction.md](compaction.md) | the compaction seam: the `compact/*` session events, `CompactionResult`, the `CompactService` interface | | [subagent.md](subagent.md) | the subagent seam: the named-provider registry, `SubagentStartRequest`/`Result`/`Run`, the start-time-vs-runtime capability split | +| [web.md](web.md) | the web access seam: `WebSearchRequest`/`Result`, `WebFetchRequest`/`Result`, `WebFetchBody`, provider/capability status, `WebErrorCode` | > Type definitions on this page are pasted **verbatim** from source and drift-checked by `pnpm run verify-type-equiv` (see [development.md](../development.md#documenting-types-verbatim-ts-type-equiv)). Inline JSDoc is omitted for readability; follow the source link for the full contracts. diff --git a/docs/core-data-structures/web.md b/docs/core-data-structures/web.md new file mode 100644 index 0000000000..f0ade276f7 --- /dev/null +++ b/docs/core-data-structures/web.md @@ -0,0 +1,119 @@ +# Web Access + +The web access seam — a [capability seam](../rfc/implemented/architecture/2026-06-24-web-capability-seam.md) that spans **two capabilities** (search and fetch) on one `ctx.web` service, split across packages: interface ([dsh-web](../../packages/web/web), `ctx.web` + the provider registries), implementations ([dsh-web-search-exa](../../packages/web/web-search-exa), [dsh-web-search-perplexity](../../packages/web/web-search-perplexity), [dsh-web-fetch-local](../../packages/web/web-fetch-local)), and consumer ([dsh-tool-web](../../packages/web/tool-web), the `web_search`/`web_fetch` tool schemas). Web is **one optional capability**, not part of the agent-loop spine — so its vocabulary lives here, not in [core.md](core.md). A search-provider swap does not change how the model asks for a query, and a fetch-implementation swap does not change how the model asks for a URL. + +Source: [`packages/web/web/src/types.ts`](../../packages/web/web/src/types.ts) + +## Why one seam for two capabilities + +Search and fetch share no request schema and no business logic, but they are deliberately one `ctx.web` middle layer: one provider-selection policy owner, one abort/error vocabulary, one product-facing "how this harness reaches the web" config surface. The cost is the parallel `searchX`/`fetchX` method pairs on the service; that parallelism is intentional, not a missed extraction. Providers register **capabilities** (a `WebSearchProvider` or `WebFetchProvider`), not tools; the model-facing names, schemas, prompt guidance, and presentation all live in the single `dsh-tool-web` consumer. + +## Search request and result + +The model-facing tool argument is just a `query`; `maxResults` is a consumer-owned bound (`dsh-tool-web`'s `WEB_SEARCH_MAX_RESULTS`, default `8`) passed through the seam and enforced on the way back — if a provider over-returns, the seam truncates `sources[]` and sets `truncated`. + +```ts type-equiv +interface WebSearchRequest { + readonly query: string + /** + * Upper bound on returned sources; the seam truncates to it. Omitted = no + * bound. `dsh-tool-web` always sets it. + */ + readonly maxResults?: number +} +``` + +```ts type-equiv +interface WebSearchResult { + readonly providerId: string + readonly query: string + readonly content?: string + readonly sources: readonly WebSearchSource[] + readonly truncated: boolean +} +``` + +`content` is optional provider-generated answer text (Exa returns none; Perplexity returns a generated answer). `sources[]` is the portable citation surface. A source always has a `url`; `title`/`snippet`/`publishedAt` are optional because not every provider returns them — Perplexity citations may be URL-only, and forcing adapters to invent the rest would make the seam lie. `dsh-tool-web` renders `title ?? hostname(url)`. + +```ts type-equiv +interface WebSearchSource { + readonly url: string + readonly title?: string + readonly snippet?: string + readonly publishedAt?: string +} +``` + +## Fetch request and result + +```ts type-equiv +interface WebFetchRequest { + readonly url: string + readonly timeoutMs?: number +} +``` + +HTTP status is part of the fetched resource state, not automatically a failure: a successful network fetch of a `404`/`500` returns a `WebFetchResult` with the status code and a bounded decoded body. `url` is the final URL after allowed redirects. `WebError` is reserved for failures to safely retrieve or represent the resource. + +```ts type-equiv +interface WebFetchResult { + readonly providerId: string + readonly url: string + readonly statusCode: number + readonly body: WebFetchBody + readonly truncated: boolean +} +``` + +`WebFetchBody` is a **closed** discriminated union owned by `dsh-web` (not a merge-extensible map): the provider decodes the kind and `dsh-tool-web` renders it, so a new kind is a coordinated change across known packages, not a plugin extension. Consumers `switch` on `kind` ending in `default: assertNever(...)`, so adding a kind breaks compilation at every consumer until handled. Each arm stays its own object literal even where fields coincide today, leaving room for arm-specific fields later (a future `pdf` body's `pageCount`). + +```ts type-equiv +type WebFetchBody = + | { readonly kind: 'html'; readonly content: string } + | { readonly kind: 'text'; readonly content: string } +``` + +## Provider and capability status + +A provider's `status()` is a cheap LOCAL check (credential presence, parseable config) and **must not make network calls**. It is an input to selection, not a health system. + +```ts type-equiv +type WebProviderStatus = + | { readonly available: true } + | { readonly available: false; readonly reason: 'missing-credential' | 'misconfigured' } +``` + +The service aggregates provider status into a `WebCapabilityStatus`: whether the capability has a selected usable provider, or the broad category in which selection fails. It carries the winning `providerId` on the available branch but NOT the per-reason payload (the missing id, the ambiguous set) — that branchable detail lives in the thrown `WebError`, the surface callers route on, so the same fact never gets two homes that can disagree. + +```ts type-equiv +type WebCapabilityStatus = + | { readonly available: true; readonly providerId: string } + | { readonly available: false; readonly reason: 'none' | 'configured-missing' | 'configured-unavailable' | 'ambiguous' } +``` + +Selection never depends on registration, config, or HMR order: a capability has an explicit provider id (config `searchProvider`/`fetchProvider`, or the matching env var feeding the same field), or auto-selects when exactly one usable provider is registered; multiple usable providers with no configured id is `ambiguous`, not first-wins. + +## Errors + +`WebError extends HarnessError` ([core.md](core.md) error taxonomy) with a stable `WebErrorCode`. `WEB_DUPLICATE_PROVIDER` is a registration-time programming error (the analogue of `LlmService`'s `DUPLICATE_ADAPTER`); the `WEB_PROVIDER_*` selection codes and the fetch transport codes are execution outcomes. `WEB_PROVIDER_ERROR` is the catch-all for a provider's own failure surfaced through the seam, including network/transport failure (DNS, connection refused, TLS). + +```ts type-equiv +type WebErrorCode = + | 'WEB_PROVIDER_UNAVAILABLE' + | 'WEB_PROVIDER_CONFIGURED_MISSING' + | 'WEB_PROVIDER_CONFIGURED_UNAVAILABLE' + | 'WEB_PROVIDER_AMBIGUOUS' + | 'WEB_DUPLICATE_PROVIDER' + | 'WEB_INVALID_URL' + | 'WEB_BLOCKED_URL' + | 'WEB_REDIRECT_BLOCKED' + | 'WEB_FETCH_TOO_LARGE' + | 'WEB_FETCH_TIMEOUT' + | 'WEB_ABORTED' + | 'WEB_UNSUPPORTED_CONTENT_TYPE' + | 'WEB_PROVIDER_ERROR' +``` + +## The service + +`WebService` (`ctx.web`, defined in [`packages/web/web/src/index.ts`](../../packages/web/web/src/index.ts)) is a provider registry plus a provider-selecting execution surface, close to `LlmService`'s shape: `registerSearchProvider`/`registerFetchProvider` (duplicate ids throw `WEB_DUPLICATE_PROVIDER`, return disposers, emit `web/providers-change`), `searchStatus`/`fetchStatus` (derived, never stored), and `search`/`fetch` (resolve the provider at call time, throw a structured `WebError` when the capability cannot run). Providers issue requests with the platform-native `fetch` (Node 24), mirroring `dsh-llm-deepseek`; the `dsh-web-fetch-local` provider owns safe retrieval (http/https-only, credential rejection, byte/char/timeout/redirect caps, same-origin-only redirects with per-hop re-validation, charset decoding) while `dsh-tool-web` owns presentation (HTML→markdown). SSRF / private-network blocking is deferred (see the RFC) — until it lands, `web_fetch` must not be enabled where it can reach sensitive internal targets. diff --git a/packages/web/web-fetch-local/src/index.ts b/packages/web/web-fetch-local/src/index.ts index 1d57410d68..eb3f8e4143 100644 --- a/packages/web/web-fetch-local/src/index.ts +++ b/packages/web/web-fetch-local/src/index.ts @@ -18,7 +18,7 @@ export { LocalFetchProvider, } from './provider.ts' export type { LocalFetchLimits } from './provider.ts' -export { classifyContentType, isSameOrigin, validateFetchUrl } from './policy.ts' +export { classifyContentType, decoderForCharset, isSameOrigin, parseCharset, validateFetchUrl } from './policy.ts' export type { FetchableKind } from './policy.ts' /** Default `User-Agent`: an explicit product agent, never a browser disguise. */ diff --git a/packages/web/web-fetch-local/src/policy.ts b/packages/web/web-fetch-local/src/policy.ts index 8261c5c1ed..7a76bd1af1 100644 --- a/packages/web/web-fetch-local/src/policy.ts +++ b/packages/web/web-fetch-local/src/policy.ts @@ -57,3 +57,29 @@ export function classifyContentType(contentType: string | null): FetchableKind | if (mime === 'application/json' || mime === 'application/xml' || mime.endsWith('+json') || mime.endsWith('+xml')) return 'text' return undefined } + +/** + * Extract the `charset` parameter from a response `Content-Type`, lower-cased, + * or `undefined` when absent. The provider feeds this label to `TextDecoder` + * so a non-UTF-8 response is decoded with its declared encoding rather than + * silently mangled into replacement characters. + */ +export function parseCharset(contentType: string | null): string | undefined { + const match = /;\s*charset\s*=\s*"?([^";]+)"?/i.exec(contentType ?? '') + return match?.[1]?.trim().toLowerCase() +} + +/** + * Build a `TextDecoder` for the declared charset, falling back to UTF-8 when + * none is declared. Throws {@link WebError} `WEB_UNSUPPORTED_CONTENT_TYPE` when + * the label is present but not a charset `TextDecoder` recognizes — better to + * fail loudly than return mojibake. + */ +export function decoderForCharset(charset: string | undefined): TextDecoder { + if (charset === undefined) return new TextDecoder('utf-8') + try { + return new TextDecoder(charset) + } catch (error: unknown) { + throw new WebError(`unsupported charset "${charset}"`, 'WEB_UNSUPPORTED_CONTENT_TYPE', { cause: error }) + } +} diff --git a/packages/web/web-fetch-local/src/provider.ts b/packages/web/web-fetch-local/src/provider.ts index 0622030af0..c8b99d08b0 100644 --- a/packages/web/web-fetch-local/src/provider.ts +++ b/packages/web/web-fetch-local/src/provider.ts @@ -21,7 +21,7 @@ import { WebError } from '@deepseek-ai/dsh-web' import type { WebFetchBody, WebFetchProvider, WebFetchRequest, WebFetchResult, WebProviderStatus } from '@deepseek-ai/dsh-web' -import { classifyContentType, isSameOrigin, validateFetchUrl } from './policy.ts' +import { classifyContentType, decoderForCharset, isSameOrigin, parseCharset, validateFetchUrl } from './policy.ts' /** Resolved provider limits (the plugin's schemastery Config supplies defaults). */ export interface LocalFetchLimits { @@ -92,14 +92,18 @@ export class LocalFetchProvider implements WebFetchProvider { throw new WebError(`redirect response (HTTP ${response.status}) without a Location header`, 'WEB_PROVIDER_ERROR') } const target = resolveRedirect(location, currentUrl) - if (!isSameOrigin(target, currentUrl)) { + // Re-validate the target against the same transport hygiene a direct + // request gets: a redirect must not be a back door to a credentialed, + // non-http(s), or over-long URL that validateFetchUrl would reject. + const validatedTarget = validateFetchUrl(target.toString(), this.limits.maxUrlLength) + if (!isSameOrigin(validatedTarget, currentUrl)) { throw new WebError( - `cross-origin redirect to ${target.origin} is not followed automatically; retry against that URL directly`, + `cross-origin redirect to ${validatedTarget.origin} is not followed automatically; retry against that URL directly`, 'WEB_REDIRECT_BLOCKED', ) } await response.body?.cancel() - currentUrl = target + currentUrl = validatedTarget continue } @@ -124,14 +128,18 @@ export class LocalFetchProvider implements WebFetchProvider { /** Read, byte-cap, classify, and decode the final response body. */ private async readBody(response: Response, finalUrl: URL): Promise { - const kind = classifyContentType(response.headers.get('content-type')) + const contentType = response.headers.get('content-type') + const kind = classifyContentType(contentType) if (kind === undefined) { await response.body?.cancel() - throw new WebError(`unsupported content type "${response.headers.get('content-type') ?? 'unknown'}"`, 'WEB_UNSUPPORTED_CONTENT_TYPE') + throw new WebError(`unsupported content type "${contentType ?? 'unknown'}"`, 'WEB_UNSUPPORTED_CONTENT_TYPE') } + // Resolve the decoder BEFORE reading the body so an unsupported charset + // fails without consuming the stream. + const decoder = decoderForCharset(parseCharset(contentType)) const { bytes, truncatedByBytes } = await this.readCapped(response) - const decoded = new TextDecoder('utf-8').decode(bytes) + const decoded = decoder.decode(bytes) const truncatedByChars = decoded.length > this.limits.maxBodyChars const content = truncatedByChars ? decoded.slice(0, this.limits.maxBodyChars) : decoded const body: WebFetchBody = kind === 'html' ? { kind: 'html', content } : { kind: 'text', content } @@ -173,7 +181,10 @@ export class LocalFetchProvider implements WebFetchProvider { const { done, value } = await reader.read() if (done) break const remaining = this.limits.maxResponseBytes - total - if (value.byteLength >= remaining) { + // Only DROPPED bytes count as truncation: a chunk that exactly fills the + // remaining capacity keeps all its bytes and we read on to observe EOF, + // so an exactly-at-cap body is not falsely flagged truncated. + if (value.byteLength > remaining) { chunks.push(value.subarray(0, remaining)) total += remaining truncatedByBytes = true diff --git a/packages/web/web-fetch-local/tests/fetch-local.spec.ts b/packages/web/web-fetch-local/tests/fetch-local.spec.ts index 3ca48150e1..54e8de20c0 100644 --- a/packages/web/web-fetch-local/tests/fetch-local.spec.ts +++ b/packages/web/web-fetch-local/tests/fetch-local.spec.ts @@ -3,7 +3,7 @@ import { createServer, type IncomingMessage, type Server, type ServerResponse } import { AddressInfo } from 'node:net' import { Context } from 'cordis' import WebService from '@deepseek-ai/dsh-web' -import { LocalFetchProvider, LOCAL_FETCH_PROVIDER_ID, classifyContentType, isSameOrigin, validateFetchUrl } from '@deepseek-ai/dsh-web-fetch-local' +import { LocalFetchProvider, LOCAL_FETCH_PROVIDER_ID, classifyContentType, decoderForCharset, isSameOrigin, parseCharset, validateFetchUrl } from '@deepseek-ai/dsh-web-fetch-local' import type { LocalFetchLimits } from '@deepseek-ai/dsh-web-fetch-local' import * as fetchPlugin from '@deepseek-ai/dsh-web-fetch-local' @@ -62,6 +62,19 @@ describe('policy helpers', () => { expect(isSameOrigin(new URL('https://a.com'), new URL('https://b.com'))).toBe(false) expect(isSameOrigin(new URL('http://a.com'), new URL('https://a.com'))).toBe(false) }) + + it('parses the charset parameter', () => { + expect(parseCharset('text/html; charset=UTF-8')).toBe('utf-8') + expect(parseCharset('text/plain; charset="iso-8859-1"')).toBe('iso-8859-1') + expect(parseCharset('text/plain')).toBeUndefined() + expect(parseCharset(null)).toBeUndefined() + }) + + it('builds a decoder for a charset and defaults to UTF-8', () => { + expect(decoderForCharset(undefined).encoding).toBe('utf-8') + expect(decoderForCharset('iso-8859-1').encoding).toBe('windows-1252') + expect(() => decoderForCharset('not-a-charset')).toThrow(expect.objectContaining({ code: 'WEB_UNSUPPORTED_CONTENT_TYPE' })) + }) }) describe('LocalFetchProvider success', () => { @@ -109,6 +122,13 @@ describe('LocalFetchProvider caps', () => { expect(result.truncated).toBe(true) }) + it('does not flag a body that exactly fills the byte cap as truncated', async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('abcd') } + const result = await provider({ maxResponseBytes: 4 }).fetch({ url: base }) + expect(result.body.content).toBe('abcd') + expect(result.truncated).toBe(false) + }) + it('truncates a decoded body past the character cap', async () => { handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('abcdefghij') } const result = await provider({ maxBodyChars: 3 }).fetch({ url: base }) @@ -133,6 +153,19 @@ describe('LocalFetchProvider caps', () => { const result = await provider().fetch({ url: base }) expect(result.body.content).toBe('sized') }) + + it('decodes a non-UTF-8 declared charset', async () => { + // 0xE9 is "é" in ISO-8859-1; decoded as UTF-8 it would be a replacement char. + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain; charset=iso-8859-1' }); res.end(Buffer.from([0x63, 0x61, 0x66, 0xE9])) } + const result = await provider().fetch({ url: base }) + expect(result.body.content).toBe('café') + }) + + it('rejects an unsupported declared charset', async () => { + handler = (_req, res) => { res.writeHead(200, { 'content-type': 'text/plain; charset=not-a-charset' }); res.end('x') } + await expect(provider().fetch({ url: base })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_UNSUPPORTED_CONTENT_TYPE' })) + }) }) describe('LocalFetchProvider redirects', () => { @@ -152,6 +185,13 @@ describe('LocalFetchProvider redirects', () => { .rejects.toThrow(expect.objectContaining({ code: 'WEB_REDIRECT_BLOCKED' })) }) + it('re-validates a redirect target, rejecting same-origin credentials in the Location', async () => { + const { port } = server.address() as AddressInfo + handler = (_req, res) => { res.writeHead(302, { location: `http://user:pass@127.0.0.1:${port}/` }); res.end() } + await expect(provider().fetch({ url: base })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_BLOCKED_URL' })) + }) + it('rejects exceeding the redirect hop cap', async () => { handler = (req, res) => { const n = Number(new URL(req.url ?? '/', base).searchParams.get('n') ?? '0') diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 4008a7cc20..f250c5b383 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -48,6 +48,16 @@ { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentResult", "source": "packages/subagent/subagent/src/types.ts" }, { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentStopReasonMap", "source": "packages/subagent/subagent/src/types.ts" }, { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentRun", "source": "packages/subagent/subagent/src/types.ts" }, - { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentProvider", "source": "packages/subagent/subagent/src/types.ts" } + { "doc": "docs/core-data-structures/subagent.md", "symbol": "SubagentProvider", "source": "packages/subagent/subagent/src/types.ts" }, + + { "doc": "docs/core-data-structures/web.md", "symbol": "WebSearchRequest", "source": "packages/web/web/src/types.ts" }, + { "doc": "docs/core-data-structures/web.md", "symbol": "WebSearchResult", "source": "packages/web/web/src/types.ts" }, + { "doc": "docs/core-data-structures/web.md", "symbol": "WebSearchSource", "source": "packages/web/web/src/types.ts" }, + { "doc": "docs/core-data-structures/web.md", "symbol": "WebFetchRequest", "source": "packages/web/web/src/types.ts" }, + { "doc": "docs/core-data-structures/web.md", "symbol": "WebFetchResult", "source": "packages/web/web/src/types.ts" }, + { "doc": "docs/core-data-structures/web.md", "symbol": "WebFetchBody", "source": "packages/web/web/src/types.ts" }, + { "doc": "docs/core-data-structures/web.md", "symbol": "WebProviderStatus", "source": "packages/web/web/src/types.ts" }, + { "doc": "docs/core-data-structures/web.md", "symbol": "WebCapabilityStatus", "source": "packages/web/web/src/types.ts" }, + { "doc": "docs/core-data-structures/web.md", "symbol": "WebErrorCode", "source": "packages/web/web/src/types.ts" } ] } From 0930e483ecf98ef363fddb51e47bf0475d34b629 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Thu, 25 Jun 2026 16:03:55 +0800 Subject: [PATCH 04/32] fix: address codex review round 2 - Preserve abort errors while parsing search responses: when the caller's AbortSignal fires after headers but during response.json() (both the success and HTTP-error body parses), surface WEB_ABORTED instead of wrapping it as WEB_PROVIDER_ERROR, so agent cancel/dispose is not misreported as a provider failure. Applied to both the Exa and Perplexity providers. - Report a malformed baseURL as misconfigured in status() (URL.canParse), so selection diagnostics and execution agree (configured-unavailable up front rather than a late WEB_PROVIDER_ERROR). WebProviderStatus already had the reason. --- packages/web/web-search-exa/README.md | 2 +- packages/web/web-search-exa/src/provider.ts | 20 ++++++++++++++----- packages/web/web-search-exa/tests/exa.spec.ts | 19 ++++++++++++++++++ packages/web/web-search-perplexity/README.md | 2 +- .../web/web-search-perplexity/src/provider.ts | 15 +++++++++----- .../tests/perplexity.spec.ts | 19 ++++++++++++++++++ 6 files changed, 65 insertions(+), 12 deletions(-) diff --git a/packages/web/web-search-exa/README.md b/packages/web/web-search-exa/README.md index 7f39356e81..61da605df7 100644 --- a/packages/web/web-search-exa/README.md +++ b/packages/web/web-search-exa/README.md @@ -9,7 +9,7 @@ This is an **implementation** package: it registers a provider into `ctx.web`, i | Key | Default | Meaning | |---|---|---| | `apiKey` | `$EXA_API_KEY` | Exa API key. Empty/absent → provider `status()` reports `missing-credential` (the seam reports `configured-unavailable`/`none`). | -| `baseURL` | `https://api.exa.ai` | Endpoint base; `/search` is appended. | +| `baseURL` | `https://api.exa.ai` | Endpoint base; `/search` is appended. An unparseable value makes `status()` report `misconfigured`. | ```yaml - id: web-search-exa diff --git a/packages/web/web-search-exa/src/provider.ts b/packages/web/web-search-exa/src/provider.ts index d7c464059a..70e14cbf25 100644 --- a/packages/web/web-search-exa/src/provider.ts +++ b/packages/web/web-search-exa/src/provider.ts @@ -72,6 +72,7 @@ export class ExaSearchProvider implements WebSearchProvider { status(): WebProviderStatus { if (this.options.apiKey.length === 0) return { available: false, reason: 'missing-credential' } + if (!isValidBaseUrl(this.options.baseURL)) return { available: false, reason: 'misconfigured' } return { available: true } } @@ -105,11 +106,14 @@ export class ExaSearchProvider implements WebSearchProvider { const parsed = await response.json() as ExaError const detail = parsed.error ?? parsed.message if (detail !== undefined && detail.length > 0) message = detail - } catch { - // The HTTP status is already captured in `message` above; a malformed or - // non-JSON error body (normal for gateway 5xx/429s) can only cost a - // richer provider message, never the real error. `response.json()` is - // the sole statement and nothing else of consequence reaches here. + } catch (error: unknown) { + // An abort fired mid-body must surface as WEB_ABORTED, not be swallowed + // into a generic HTTP-error message — cancellation is not a provider + // error (the seam's cancellation contract). + if (isAbortError(error)) throw new WebError('Exa search aborted', 'WEB_ABORTED', { cause: error }) + // Otherwise: the HTTP status is already captured in `message` above; a + // malformed/non-JSON error body (normal for gateway 5xx/429s) can only + // cost a richer provider message, never the real error. } throw new WebError(message, 'WEB_PROVIDER_ERROR') } @@ -118,12 +122,18 @@ export class ExaSearchProvider implements WebSearchProvider { try { payload = await response.json() as ExaSearchResponse } catch (error: unknown) { + if (isAbortError(error)) throw new WebError('Exa search aborted', 'WEB_ABORTED', { cause: error }) throw new WebError(`Exa returned an unparseable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) } return mapExaResponse(request.query, payload) } } +/** True when `baseURL` parses as an absolute URL (a cheap local config check). */ +function isValidBaseUrl(baseURL: string): boolean { + return URL.canParse(baseURL) +} + /** True for a fetch/`AbortSignal` abort, surfaced as `WEB_ABORTED`. */ function isAbortError(error: unknown): boolean { return error instanceof DOMException && error.name === 'AbortError' diff --git a/packages/web/web-search-exa/tests/exa.spec.ts b/packages/web/web-search-exa/tests/exa.spec.ts index 3fdd878180..403198401e 100644 --- a/packages/web/web-search-exa/tests/exa.spec.ts +++ b/packages/web/web-search-exa/tests/exa.spec.ts @@ -71,6 +71,11 @@ describe('ExaSearchProvider status', () => { it('is available with a key', () => { expect(new ExaSearchProvider(options).status()).toEqual({ available: true }) }) + + it('is misconfigured when the base URL is unparseable', () => { + expect(new ExaSearchProvider({ apiKey: 'exa-key', baseURL: 'not a url' }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + }) }) describe('ExaSearchProvider request mapping', () => { @@ -142,6 +147,20 @@ describe('ExaSearchProvider error handling', () => { await expect(new ExaSearchProvider(options).search({ query: 'q' })) .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) }) + + it('surfaces an abort during success-body parse as WEB_ABORTED, not provider error', async () => { + const body = { json: () => Promise.reject(new DOMException('aborted', 'AbortError')), ok: true, status: 200 } + vi.stubGlobal('fetch', vi.fn(async () => body as unknown as Response)) + await expect(new ExaSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + + it('surfaces an abort during error-body parse as WEB_ABORTED', async () => { + const body = { json: () => Promise.reject(new DOMException('aborted', 'AbortError')), ok: false, status: 500 } + vi.stubGlobal('fetch', vi.fn(async () => body as unknown as Response)) + await expect(new ExaSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) }) describe('web-search-exa plugin registration', () => { diff --git a/packages/web/web-search-perplexity/README.md b/packages/web/web-search-perplexity/README.md index 3850e5e9c1..e7093a1133 100644 --- a/packages/web/web-search-perplexity/README.md +++ b/packages/web/web-search-perplexity/README.md @@ -9,7 +9,7 @@ This is an **implementation** package: it registers a provider into `ctx.web`, i | Key | Default | Meaning | |---|---|---| | `apiKey` | `$PERPLEXITY_API_KEY` | Perplexity API key. Empty/absent → provider `status()` reports `missing-credential`. | -| `baseURL` | `https://api.perplexity.ai` | Endpoint base; `/chat/completions` is appended. | +| `baseURL` | `https://api.perplexity.ai` | Endpoint base; `/chat/completions` is appended. An unparseable value makes `status()` report `misconfigured`. | | `model` | `sonar` | Search model name. | ```yaml diff --git a/packages/web/web-search-perplexity/src/provider.ts b/packages/web/web-search-perplexity/src/provider.ts index 2b596414dd..69b4f794dd 100644 --- a/packages/web/web-search-perplexity/src/provider.ts +++ b/packages/web/web-search-perplexity/src/provider.ts @@ -81,6 +81,7 @@ export class PerplexitySearchProvider implements WebSearchProvider { status(): WebProviderStatus { if (this.options.apiKey.length === 0) return { available: false, reason: 'missing-credential' } + if (!URL.canParse(this.options.baseURL)) return { available: false, reason: 'misconfigured' } return { available: true } } @@ -113,11 +114,14 @@ export class PerplexitySearchProvider implements WebSearchProvider { const parsed = await response.json() as PerplexityError const detail = typeof parsed.error === 'string' ? parsed.error : parsed.error?.message ?? parsed.message if (detail !== undefined && detail.length > 0) message = detail - } catch { - // The HTTP status is already captured in `message` above; a malformed or - // non-JSON error body (normal for gateway 5xx/429s) can only cost a - // richer provider message, never the real error. `response.json()` is - // the sole statement and nothing else of consequence reaches here. + } catch (error: unknown) { + // An abort fired mid-body must surface as WEB_ABORTED, not be swallowed + // into a generic HTTP-error message — cancellation is not a provider + // error (the seam's cancellation contract). + if (isAbortError(error)) throw new WebError('Perplexity search aborted', 'WEB_ABORTED', { cause: error }) + // Otherwise: the HTTP status is already captured in `message` above; a + // malformed/non-JSON error body (normal for gateway 5xx/429s) can only + // cost a richer provider message, never the real error. } throw new WebError(message, 'WEB_PROVIDER_ERROR') } @@ -126,6 +130,7 @@ export class PerplexitySearchProvider implements WebSearchProvider { try { payload = await response.json() as PerplexityResponse } catch (error: unknown) { + if (isAbortError(error)) throw new WebError('Perplexity search aborted', 'WEB_ABORTED', { cause: error }) throw new WebError(`Perplexity returned an unparseable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) } return mapPerplexityResponse(request.query, payload) diff --git a/packages/web/web-search-perplexity/tests/perplexity.spec.ts b/packages/web/web-search-perplexity/tests/perplexity.spec.ts index 16557af888..c1f76a63fb 100644 --- a/packages/web/web-search-perplexity/tests/perplexity.spec.ts +++ b/packages/web/web-search-perplexity/tests/perplexity.spec.ts @@ -75,6 +75,11 @@ describe('PerplexitySearchProvider status', () => { it('is available with a key', () => { expect(new PerplexitySearchProvider(options).status()).toEqual({ available: true }) }) + + it('is misconfigured when the base URL is unparseable', () => { + expect(new PerplexitySearchProvider({ ...options, baseURL: 'not a url' }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + }) }) describe('PerplexitySearchProvider request mapping', () => { @@ -135,6 +140,20 @@ describe('PerplexitySearchProvider error handling', () => { .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) }) + it('surfaces an abort during success-body parse as WEB_ABORTED, not provider error', async () => { + const body = { json: () => Promise.reject(new DOMException('aborted', 'AbortError')), ok: true, status: 200 } + vi.stubGlobal('fetch', vi.fn(async () => body as unknown as Response)) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + + it('surfaces an abort during error-body parse as WEB_ABORTED', async () => { + const body = { json: () => Promise.reject(new DOMException('aborted', 'AbortError')), ok: false, status: 500 } + vi.stubGlobal('fetch', vi.fn(async () => body as unknown as Response)) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + it('maps a network failure to WEB_PROVIDER_ERROR', async () => { vi.stubGlobal('fetch', vi.fn(() => Promise.reject(new TypeError('connection refused')))) await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) From a1624530ee776c47413047527990e79a3bbb51bb Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Thu, 25 Jun 2026 16:32:39 +0800 Subject: [PATCH 05/32] fix: address codex review round 3 Resource-lifecycle and error-classification fixes in the local fetch provider: - Classify a timeout that fires DURING the body read as WEB_FETCH_TIMEOUT, not WEB_ABORTED: thread the controller signal into the body-read translate path and recover the timeout WebError from signal.reason, honoring the public WEB_FETCH_TIMEOUT contract for a stalled response body. - Cancel the response body before every blocked-redirect throw path (cross-origin, invalid target, missing Location), so a rejected redirect with a large or streaming body does not leak the socket after the tool returns WEB_REDIRECT_BLOCKED. - Cancel the body when charset validation fails, matching the unsupported-content-type and over-size paths (the round-1 charset check threw before readCapped owned the stream). --- packages/web/web-fetch-local/src/provider.ts | 73 +++++++++++++------ .../web-fetch-local/tests/fetch-local.spec.ts | 57 ++++++++++++++- 2 files changed, 108 insertions(+), 22 deletions(-) diff --git a/packages/web/web-fetch-local/src/provider.ts b/packages/web/web-fetch-local/src/provider.ts index c8b99d08b0..13ae7af708 100644 --- a/packages/web/web-fetch-local/src/provider.ts +++ b/packages/web/web-fetch-local/src/provider.ts @@ -71,7 +71,7 @@ export class LocalFetchProvider implements WebFetchProvider { const timer = setTimeout(() => { controller.abort(new WebError('web fetch timed out', 'WEB_FETCH_TIMEOUT')) }, timeoutMs) try { - return await this.followAndRead(request.url, controller, timeoutMs) + return await this.followAndRead(request.url, controller) } finally { clearTimeout(timer) if (exec?.signal !== undefined) exec.signal.removeEventListener('abort', onAbort) @@ -79,41 +79,50 @@ export class LocalFetchProvider implements WebFetchProvider { } /** Follow same-origin redirects up to the hop cap, then read the final response. */ - private async followAndRead(initialUrl: string, controller: AbortController, timeoutMs: number): Promise { + private async followAndRead(initialUrl: string, controller: AbortController): Promise { let currentUrl = validateFetchUrl(initialUrl, this.limits.maxUrlLength) for (let hop = 0; hop <= this.limits.maxRedirects; hop++) { - const response = await this.requestOnce(currentUrl, controller, timeoutMs) + const response = await this.requestOnce(currentUrl, controller) if (isRedirectStatus(response.status)) { const location = response.headers.get('location') if (location === null) { - // A redirect status with no Location is not a usable resource. + // A redirect status with no Location is not a usable resource. Cancel + // the (possibly streaming) body before throwing so no socket leaks. + await response.body?.cancel() throw new WebError(`redirect response (HTTP ${response.status}) without a Location header`, 'WEB_PROVIDER_ERROR') } const target = resolveRedirect(location, currentUrl) // Re-validate the target against the same transport hygiene a direct // request gets: a redirect must not be a back door to a credentialed, - // non-http(s), or over-long URL that validateFetchUrl would reject. - const validatedTarget = validateFetchUrl(target.toString(), this.limits.maxUrlLength) - if (!isSameOrigin(validatedTarget, currentUrl)) { - throw new WebError( - `cross-origin redirect to ${validatedTarget.origin} is not followed automatically; retry against that URL directly`, - 'WEB_REDIRECT_BLOCKED', - ) + // non-http(s), or over-long URL that validateFetchUrl would reject. A + // rejection here must still cancel the body first (see below). + let validatedTarget: URL + try { + validatedTarget = validateFetchUrl(target.toString(), this.limits.maxUrlLength) + if (!isSameOrigin(validatedTarget, currentUrl)) { + throw new WebError( + `cross-origin redirect to ${validatedTarget.origin} is not followed automatically; retry against that URL directly`, + 'WEB_REDIRECT_BLOCKED', + ) + } + } catch (error: unknown) { + await response.body?.cancel() + throw error } await response.body?.cancel() currentUrl = validatedTarget continue } - return await this.readBody(response, currentUrl) + return await this.readBody(response, currentUrl, controller.signal) } throw new WebError(`exceeded the maximum of ${this.limits.maxRedirects} redirects`, 'WEB_REDIRECT_BLOCKED') } - private async requestOnce(url: URL, controller: AbortController, _timeoutMs: number): Promise { + private async requestOnce(url: URL, controller: AbortController): Promise { try { return await fetch(url, { method: 'GET', @@ -122,12 +131,12 @@ export class LocalFetchProvider implements WebFetchProvider { signal: controller.signal, }) } catch (error: unknown) { - throw translateAbortOrNetwork(error) + throw translateAbortOrNetwork(error, controller.signal) } } /** Read, byte-cap, classify, and decode the final response body. */ - private async readBody(response: Response, finalUrl: URL): Promise { + private async readBody(response: Response, finalUrl: URL, signal: AbortSignal): Promise { const contentType = response.headers.get('content-type') const kind = classifyContentType(contentType) if (kind === undefined) { @@ -136,9 +145,16 @@ export class LocalFetchProvider implements WebFetchProvider { } // Resolve the decoder BEFORE reading the body so an unsupported charset - // fails without consuming the stream. - const decoder = decoderForCharset(parseCharset(contentType)) - const { bytes, truncatedByBytes } = await this.readCapped(response) + // fails without consuming the stream — but cancel the body on that failure + // so the socket does not leak (matching the unsupported-content-type path). + let decoder: TextDecoder + try { + decoder = decoderForCharset(parseCharset(contentType)) + } catch (error: unknown) { + await response.body?.cancel() + throw error + } + const { bytes, truncatedByBytes } = await this.readCapped(response, signal) const decoded = decoder.decode(bytes) const truncatedByChars = decoded.length > this.limits.maxBodyChars const content = truncatedByChars ? decoded.slice(0, this.limits.maxBodyChars) : decoded @@ -159,7 +175,7 @@ export class LocalFetchProvider implements WebFetchProvider { * past the cap is cut short (`truncatedByBytes`) rather than rejected, so a * server that under-reports still yields a bounded usable body. */ - private async readCapped(response: Response): Promise<{ bytes: Uint8Array; truncatedByBytes: boolean }> { + private async readCapped(response: Response, signal: AbortSignal): Promise<{ bytes: Uint8Array; truncatedByBytes: boolean }> { const declared = response.headers.get('content-length') if (declared !== null) { const length = Number(declared) @@ -195,7 +211,7 @@ export class LocalFetchProvider implements WebFetchProvider { } } catch (error: unknown) { /* v8 ignore next -- mid-stream read fault needs a network drop after headers; translate path covered by request-phase tests. */ - throw translateAbortOrNetwork(error) + throw translateAbortOrNetwork(error, signal) } finally { /* v8 ignore next 4 -- cancel() after a completed/broken read settles without rejecting; unobserved best-effort cleanup. */ await reader.cancel().catch(() => { @@ -235,9 +251,24 @@ function resolveRedirect(location: string, base: URL): URL { * already-typed `WebError` pass through; an `AbortError` becomes `WEB_ABORTED`; * anything else is a transport/network failure (`WEB_PROVIDER_ERROR`). */ -function translateAbortOrNetwork(error: unknown): WebError { +/** + * Translate a thrown fetch/stream error into a `WebError`. Our own + * `WEB_FETCH_TIMEOUT` (passed to `controller.abort(reason)`) and any other + * already-typed `WebError` pass through; an `AbortError` becomes `WEB_ABORTED`, + * UNLESS the abort was our timeout — the body-read reader surfaces a generic + * `AbortError` rather than the abort reason, so we recover the timeout's + * `WebError` from `signal.reason`; anything else is a transport/network failure + * (`WEB_PROVIDER_ERROR`). + */ +function translateAbortOrNetwork(error: unknown, signal?: AbortSignal): WebError { if (error instanceof WebError) return error if (error instanceof DOMException && error.name === 'AbortError') { + // A timeout abort carries its WebError as the signal reason; honor the + // WEB_FETCH_TIMEOUT contract instead of reporting a generic cancellation. + // (Node rejects WITH the reason — the WebError branch above — so this only + // fires on a runtime that surfaces a bare AbortError while reason is set.) + /* v8 ignore next */ + if (signal?.reason instanceof WebError) return signal.reason return new WebError('web fetch aborted', 'WEB_ABORTED', { cause: error }) } return new WebError(`web fetch failed: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) diff --git a/packages/web/web-fetch-local/tests/fetch-local.spec.ts b/packages/web/web-fetch-local/tests/fetch-local.spec.ts index 54e8de20c0..75a7cb1580 100644 --- a/packages/web/web-fetch-local/tests/fetch-local.spec.ts +++ b/packages/web/web-fetch-local/tests/fetch-local.spec.ts @@ -1,4 +1,4 @@ -import { afterEach, beforeEach, describe, expect, it } from 'vitest' +import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest' import { createServer, type IncomingMessage, type Server, type ServerResponse } from 'node:http' import { AddressInfo } from 'node:net' import { Context } from 'cordis' @@ -32,6 +32,7 @@ beforeEach(async () => { }) afterEach(async () => { + vi.unstubAllGlobals() await new Promise(resolve => server.close(() => { resolve() })) }) @@ -250,6 +251,20 @@ describe('LocalFetchProvider invalid URLs and abort', () => { .rejects.toThrow(expect.objectContaining({ code: 'WEB_FETCH_TIMEOUT' })) }) + it('classifies a timeout DURING the body read as WEB_FETCH_TIMEOUT, not WEB_ABORTED', async () => { + // Promise body that resolves headers (so fetch() returns) but a content-length + // that outlasts the bytes sent, so readCapped()'s reader awaits more and the + // timeout fires mid-read — the reader then surfaces a generic AbortError that + // must still be recovered as the timeout reason via signal.reason. + handler = (_req, res) => { + res.writeHead(200, { 'content-type': 'text/plain', 'content-length': '100' }) + res.write('partial') + // never send the remaining bytes nor end the response + } + await expect(provider({ timeoutMs: 80 }).fetch({ url: base })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_FETCH_TIMEOUT' })) + }) + it('maps a connection failure to WEB_PROVIDER_ERROR', async () => { // Port 1 on loopback is not listening: a real connection failure (not abort). await expect(provider().fetch({ url: 'http://127.0.0.1:1/' })) @@ -263,6 +278,46 @@ describe('LocalFetchProvider invalid URLs and abort', () => { }) }) +describe('LocalFetchProvider body cancellation on error paths', () => { + /** A fake Response whose body.cancel is observable. */ + type FakeInit = { status: number; headers: Record; location?: string } + function fakeResponse(init: FakeInit): { response: Response; cancelled: () => boolean } { + let cancelled = false + const headers = new Headers(init.headers) + if (init.location !== undefined) headers.set('location', init.location) + const response = { + status: init.status, + headers, + body: { cancel: () => { cancelled = true; return Promise.resolve() } }, + } as unknown as Response + return { response, cancelled: () => cancelled } + } + + it('cancels the body when a cross-origin redirect is blocked', async () => { + const { response, cancelled } = fakeResponse({ status: 302, headers: {}, location: 'https://elsewhere.test/' }) + vi.stubGlobal('fetch', vi.fn(async () => response)) + await expect(provider().fetch({ url: 'http://127.0.0.1:9/' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_REDIRECT_BLOCKED' })) + expect(cancelled()).toBe(true) + }) + + it('cancels the body when an unsupported charset is rejected', async () => { + const { response, cancelled } = fakeResponse({ status: 200, headers: { 'content-type': 'text/plain; charset=not-a-charset' } }) + vi.stubGlobal('fetch', vi.fn(async () => response)) + await expect(provider().fetch({ url: 'http://127.0.0.1:9/' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_UNSUPPORTED_CONTENT_TYPE' })) + expect(cancelled()).toBe(true) + }) + + it('cancels the body when a redirect has no Location header', async () => { + const { response, cancelled } = fakeResponse({ status: 302, headers: {} }) + vi.stubGlobal('fetch', vi.fn(async () => response)) + await expect(provider().fetch({ url: 'http://127.0.0.1:9/' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + expect(cancelled()).toBe(true) + }) +}) + describe('web-fetch-local plugin registration', () => { it('registers the provider into ctx.web (HMR-safe)', async () => { const ctx = new Context() From 1cd3a454da07ec028b0e98015868b88bec3d46d2 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Thu, 25 Jun 2026 18:00:07 +0800 Subject: [PATCH 06/32] fix: remove stale duplicate JSDoc on translateAbortOrNetwork The function carried two consecutive JSDoc blocks; the first was an outdated short version missing the timeout-recovery contract. Keep only the accurate detailed block. --- packages/web/web-fetch-local/src/provider.ts | 6 ------ 1 file changed, 6 deletions(-) diff --git a/packages/web/web-fetch-local/src/provider.ts b/packages/web/web-fetch-local/src/provider.ts index 13ae7af708..061eaf5e0c 100644 --- a/packages/web/web-fetch-local/src/provider.ts +++ b/packages/web/web-fetch-local/src/provider.ts @@ -245,12 +245,6 @@ function resolveRedirect(location: string, base: URL): URL { } } -/** - * Translate a thrown fetch/stream error into a `WebError`. Our own - * `WEB_FETCH_TIMEOUT` (passed to `controller.abort(reason)`) and any other - * already-typed `WebError` pass through; an `AbortError` becomes `WEB_ABORTED`; - * anything else is a transport/network failure (`WEB_PROVIDER_ERROR`). - */ /** * Translate a thrown fetch/stream error into a `WebError`. Our own * `WEB_FETCH_TIMEOUT` (passed to `controller.abort(reason)`) and any other From caef2529052d72b672b66665e0a864c185fbd4fc Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Fri, 26 Jun 2026 19:18:46 +0800 Subject: [PATCH 07/32] chore: adapt web seam to master's tsconfig + regenerate catalogs Register the five web packages in the root tsconfig.json project graph (master's typecheck moved to `tsc -b tsconfig.json` and dropped the separate tsconfig.typecheck.json), and regenerate the module graph and cordis catalog so they reflect the web packages on master. --- docs/cordis-catalog/events-and-services.md | 40 ++++++++++++++++++++-- docs/module-graph.md | 13 +++++++ tsconfig.json | 5 +++ 3 files changed, 56 insertions(+), 2 deletions(-) diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index 84ee2a893f..8134bd6546 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -11,7 +11,7 @@ The **harness tier** below (the `@deepseek-ai/dsh-*` packages) is the vocabulary ## Events -Dispatch modes: **emit** (fire-and-forget), **waterfall** (each listener gets `next()` and may transform or veto — see [waterfall semantics](../architecture.md#cordis-waterfall-semantics-important)), **parallel** (awaited fan-out, no veto). The harness declares 24 events across 6 scopes. +Dispatch modes: **emit** (fire-and-forget), **waterfall** (each listener gets `next()` and may transform or veto — see [waterfall semantics](../architecture.md#cordis-waterfall-semantics-important)), **parallel** (awaited fan-out, no veto). The harness declares 25 events across 7 scopes. ### `agent/*` @@ -299,9 +299,21 @@ Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult Source: [`packages/core/tools/src/index.ts:43`](../../packages/core/tools/src/index.ts) +### `web/*` + +#### `web/providers-change` — emit + +Fired after the provider registry changes — a search or fetch provider was registered or disposed. Carries no payload and no capability graph: it means only "the provider registry changed; observers may recompute status from `ctx.web`". `searchStatus()` / `fetchStatus()` stay derived, not stored. + +```ts cordis-catalog +'web/providers-change'(this: WebService): void +``` + +Source: [`packages/web/web/src/index.ts:66`](../../packages/web/web/src/index.ts) + ## Services -The 10 `ctx.` services the harness provides. An abstract seam (e.g. `ctx.bash`) is implemented by a separate package; the interface is what consumers code against. +The 11 `ctx.` services the harness provides. An abstract seam (e.g. `ctx.bash`) is implemented by a separate package; the interface is what consumers code against. ### `ctx.agentLoop` — `AgentLoop` @@ -472,6 +484,30 @@ Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../ Source: [`packages/core/tools/src/index.ts:277`](../../packages/core/tools/src/index.ts) +### `ctx.web` — `WebService` + +The web access service. Registered as `ctx.web` (one instance per context). + +Selection semantics (identical for status and execution, never order- dependent): + +- A configured id that is registered and `status().available` → that provider. +- A configured id not registered → `configured-missing` / `WEB_PROVIDER_CONFIGURED_MISSING`. +- A configured id registered but unavailable → `configured-unavailable` / `WEB_PROVIDER_CONFIGURED_UNAVAILABLE`. +- No id configured, exactly one registered usable provider → that provider. +- No id configured, multiple usable providers → `ambiguous` / `WEB_PROVIDER_AMBIGUOUS`. +- No id configured, no usable provider → `none` / `WEB_PROVIDER_UNAVAILABLE`. + +```ts cordis-catalog +registerSearchProvider(provider: WebSearchProvider): () => void +registerFetchProvider(provider: WebFetchProvider): () => void +searchStatus(): WebCapabilityStatus +fetchStatus(): WebCapabilityStatus +async search(request: WebSearchRequest, exec?: WebExecContext): Promise +async fetch(request: WebFetchRequest, exec?: WebExecContext): Promise +``` + +Source: [`packages/web/web/src/index.ts:106`](../../packages/web/web/src/index.ts) + ## Inherited tier (cordis core + loader/hmr/timer) The framework surface every plugin inherits, beyond the harness vocabulary above. This is pinned vendor source ([vendoring policy](../../vendor/README.md)); it is summarized here so the catalog is a complete picture of what `ctx` and the event bus offer, without elevating framework internals to the harness tier's prominence. diff --git a/docs/module-graph.md b/docs/module-graph.md index 346ef157fe..a17680cb6d 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -15,6 +15,7 @@ graph TD session --> brand session --> llm system-prompt --> llm + web --> llm agent --> brand agent --> llm agent --> session @@ -23,6 +24,9 @@ graph TD llm-replay --> llm llm-replay --> session session-persistence --> session + web-fetch-local --> web + web-search-exa --> web + web-search-perplexity --> web invariants --> agent invariants --> llm invariants --> session @@ -54,6 +58,10 @@ graph TD tool-bash --> bash tool-bash --> llm tool-bash --> tools + tool-web --> llm + tool-web --> system-prompt + tool-web --> tools + tool-web --> web agent-core --> agent agent-core --> agent-loop agent-core --> invariants @@ -102,10 +110,14 @@ graph TD | `llm-pi-ai` | `llm` | | `session` | `brand`, `llm` | | `system-prompt` | `llm` | +| `web` | `llm` | | `agent` | `brand`, `llm`, `session` | | `compact` | `llm`, `session` | | `llm-replay` | `llm`, `session` | | `session-persistence` | `session` | +| `web-fetch-local` | `web` | +| `web-search-exa` | `web` | +| `web-search-perplexity` | `web` | | `invariants` | `agent`, `llm`, `session` | | `session-persistence-jsonl` | `session`, `session-persistence` | | `session-persistence-sqlite` | `session`, `session-persistence` | @@ -115,6 +127,7 @@ graph TD | `agent-loop` | `agent`, `llm`, `session`, `session-persistence`, `system-prompt`, `tools` | | `subagent` | `agent`, `llm`, `tools` | | `tool-bash` | `agent`, `bash`, `llm`, `tools` | +| `tool-web` | `llm`, `system-prompt`, `tools`, `web` | | `agent-core` | `agent`, `agent-loop`, `invariants`, `llm`, `session`, `system-prompt`, `tool-bash`, `tools` | | `subagent-acp` | `agent`, `llm`, `subagent` | | `subagent-inprocess` | `agent`, `llm`, `session`, `subagent` | diff --git a/tsconfig.json b/tsconfig.json index 81f52357d5..120ad5a4fb 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -38,6 +38,11 @@ { "path": "./packages/bash/bash-local" }, { "path": "./packages/bash/tool-bash" }, { "path": "./packages/compact/compact" }, + { "path": "./packages/web/web" }, + { "path": "./packages/web/web-search-exa" }, + { "path": "./packages/web/web-search-perplexity" }, + { "path": "./packages/web/web-fetch-local" }, + { "path": "./packages/web/tool-web" }, { "path": "./packages/support/invariants" }, { "path": "./packages/ui/acp" }, { "path": "./packages/ui/acp-agent" }, From f843ea7701f8361e255cd38b0ce06eaa61ecc657 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Fri, 26 Jun 2026 19:30:08 +0800 Subject: [PATCH 08/32] fix: align web packages with master's two-stage build layout The web packages were authored against the old single-stage layout where tsc emitted directly to lib/. Master compiles declarations to lib/types/ via tsc -b, then bundles JS into lib/ via tsdown. Point every web package's tsc outDir at lib/types, update package.json types/exports/files to the lib/types declaration + lib/ bundle shape (matching dsh-bash/dsh-tool-bash), and bundle tool-web's subpath entries from lib/types/*.js rather than src. --- packages/web/tool-web/package.json | 23 +++++++++++++++---- packages/web/tool-web/tsconfig.json | 2 +- packages/web/tool-web/tsdown.config.ts | 7 +++--- packages/web/web-fetch-local/package.json | 8 ++++--- packages/web/web-fetch-local/tsconfig.json | 2 +- packages/web/web-search-exa/package.json | 8 ++++--- packages/web/web-search-exa/tsconfig.json | 2 +- .../web/web-search-perplexity/package.json | 8 ++++--- .../web/web-search-perplexity/tsconfig.json | 2 +- packages/web/web/package.json | 8 ++++--- packages/web/web/tsconfig.json | 2 +- 11 files changed, 47 insertions(+), 25 deletions(-) diff --git a/packages/web/tool-web/package.json b/packages/web/tool-web/package.json index 8d46faa157..c31c685e45 100644 --- a/packages/web/tool-web/package.json +++ b/packages/web/tool-web/package.json @@ -5,16 +5,29 @@ "private": true, "type": "module", "main": "lib/index.js", - "types": "lib/index.d.ts", + "types": "lib/types/index.d.ts", "exports": { - ".": { "types": "./lib/index.d.ts", "default": "./lib/index.js" }, - "./search": { "types": "./lib/search.d.ts", "default": "./lib/search.js" }, - "./fetch": { "types": "./lib/fetch.d.ts", "default": "./lib/fetch.js" }, + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./search": { + "types": "./lib/types/search.d.ts", + "default": "./lib/search.js" + }, + "./fetch": { + "types": "./lib/types/fetch.d.ts", + "default": "./lib/fetch.js" + }, "./src/*": "./src/*", "./package.json": "./package.json" }, "files": [ - "lib", + "lib/index.js", + "lib/search.js", + "lib/fetch.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", "src" ], "license": "BSD-3-Clause", diff --git a/packages/web/tool-web/tsconfig.json b/packages/web/tool-web/tsconfig.json index b4121a6c14..463a18dee9 100644 --- a/packages/web/tool-web/tsconfig.json +++ b/packages/web/tool-web/tsconfig.json @@ -2,7 +2,7 @@ "extends": "../../../tsconfig.base.json", "compilerOptions": { "rootDir": "src", - "outDir": "lib" + "outDir": "lib/types" }, "include": ["src"], "references": [ diff --git a/packages/web/tool-web/tsdown.config.ts b/packages/web/tool-web/tsdown.config.ts index c4849939db..0f75095d18 100644 --- a/packages/web/tool-web/tsdown.config.ts +++ b/packages/web/tool-web/tsdown.config.ts @@ -3,11 +3,12 @@ import { defineConfig } from 'tsdown' /** * tool-web exposes one package root plus one entry per tool plugin, so each tool * can be loaded or replaced independently as a subpath plugin - * (`@deepseek-ai/dsh-tool-web/search`, `/fetch`). The root tsdown config only - * auto-discovers `src/index.ts`, so the subpath entries are declared here. + * (`@deepseek-ai/dsh-tool-web/search`, `/fetch`). The root tsdown builds only + * `lib/types/index.js`, so this override adds the subpath entries. Declarations + * come from `tsc -b` (dts: false), matching every package. */ export default defineConfig({ - entry: ['src/index.ts', 'src/search.ts', 'src/fetch.ts'], + entry: ['lib/types/index.js', 'lib/types/search.js', 'lib/types/fetch.js'], outDir: 'lib', format: ['esm'], platform: 'node', diff --git a/packages/web/web-fetch-local/package.json b/packages/web/web-fetch-local/package.json index 7249697ec3..8d9a599a52 100644 --- a/packages/web/web-fetch-local/package.json +++ b/packages/web/web-fetch-local/package.json @@ -5,17 +5,19 @@ "private": true, "type": "module", "main": "lib/index.js", - "types": "lib/index.d.ts", + "types": "lib/types/index.d.ts", "exports": { ".": { - "types": "./lib/index.d.ts", + "types": "./lib/types/index.d.ts", "default": "./lib/index.js" }, "./src/*": "./src/*", "./package.json": "./package.json" }, "files": [ - "lib", + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", "src" ], "license": "BSD-3-Clause", diff --git a/packages/web/web-fetch-local/tsconfig.json b/packages/web/web-fetch-local/tsconfig.json index cb9eb44552..aa7c949fec 100644 --- a/packages/web/web-fetch-local/tsconfig.json +++ b/packages/web/web-fetch-local/tsconfig.json @@ -2,7 +2,7 @@ "extends": "../../../tsconfig.base.json", "compilerOptions": { "rootDir": "src", - "outDir": "lib" + "outDir": "lib/types" }, "include": [ "src" diff --git a/packages/web/web-search-exa/package.json b/packages/web/web-search-exa/package.json index fe79af8ba8..a111daa287 100644 --- a/packages/web/web-search-exa/package.json +++ b/packages/web/web-search-exa/package.json @@ -5,17 +5,19 @@ "private": true, "type": "module", "main": "lib/index.js", - "types": "lib/index.d.ts", + "types": "lib/types/index.d.ts", "exports": { ".": { - "types": "./lib/index.d.ts", + "types": "./lib/types/index.d.ts", "default": "./lib/index.js" }, "./src/*": "./src/*", "./package.json": "./package.json" }, "files": [ - "lib", + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", "src" ], "license": "BSD-3-Clause", diff --git a/packages/web/web-search-exa/tsconfig.json b/packages/web/web-search-exa/tsconfig.json index cb9eb44552..aa7c949fec 100644 --- a/packages/web/web-search-exa/tsconfig.json +++ b/packages/web/web-search-exa/tsconfig.json @@ -2,7 +2,7 @@ "extends": "../../../tsconfig.base.json", "compilerOptions": { "rootDir": "src", - "outDir": "lib" + "outDir": "lib/types" }, "include": [ "src" diff --git a/packages/web/web-search-perplexity/package.json b/packages/web/web-search-perplexity/package.json index 1d6229eae4..fde44ddd16 100644 --- a/packages/web/web-search-perplexity/package.json +++ b/packages/web/web-search-perplexity/package.json @@ -5,17 +5,19 @@ "private": true, "type": "module", "main": "lib/index.js", - "types": "lib/index.d.ts", + "types": "lib/types/index.d.ts", "exports": { ".": { - "types": "./lib/index.d.ts", + "types": "./lib/types/index.d.ts", "default": "./lib/index.js" }, "./src/*": "./src/*", "./package.json": "./package.json" }, "files": [ - "lib", + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", "src" ], "license": "BSD-3-Clause", diff --git a/packages/web/web-search-perplexity/tsconfig.json b/packages/web/web-search-perplexity/tsconfig.json index cb9eb44552..aa7c949fec 100644 --- a/packages/web/web-search-perplexity/tsconfig.json +++ b/packages/web/web-search-perplexity/tsconfig.json @@ -2,7 +2,7 @@ "extends": "../../../tsconfig.base.json", "compilerOptions": { "rootDir": "src", - "outDir": "lib" + "outDir": "lib/types" }, "include": [ "src" diff --git a/packages/web/web/package.json b/packages/web/web/package.json index 40ac10b715..8c68c58203 100644 --- a/packages/web/web/package.json +++ b/packages/web/web/package.json @@ -5,17 +5,19 @@ "private": true, "type": "module", "main": "lib/index.js", - "types": "lib/index.d.ts", + "types": "lib/types/index.d.ts", "exports": { ".": { - "types": "./lib/index.d.ts", + "types": "./lib/types/index.d.ts", "default": "./lib/index.js" }, "./src/*": "./src/*", "./package.json": "./package.json" }, "files": [ - "lib", + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", "src" ], "license": "BSD-3-Clause", diff --git a/packages/web/web/tsconfig.json b/packages/web/web/tsconfig.json index b187cddf35..e9de391ba1 100644 --- a/packages/web/web/tsconfig.json +++ b/packages/web/web/tsconfig.json @@ -2,7 +2,7 @@ "extends": "../../../tsconfig.base.json", "compilerOptions": { "rootDir": "src", - "outDir": "lib" + "outDir": "lib/types" }, "include": [ "src" From 70a8b57738d3c3e573b083b07549719a657a8b52 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Sun, 28 Jun 2026 17:02:06 +0800 Subject: [PATCH 09/32] fix: drop tool-web subpath exports, align with tool-bash single-entry shape The web tool package exposed ./search and ./fetch as standalone subpath plugins, but nothing consumed them, the RFC never called for them, and the sibling dsh-tool-bash (also a multi-tool consumer) ships a single entry and selects tools via config. The extra entries also tripped the workspace constraints gate, whose expected `files` list covers single-entry and bin packages but not a non-bin multi-entry one. Collapse to a single `.` entry: drop the ./search|./fetch exports and their lib/*.js from package.json files, delete the per-package tsdown override (the root config's lib/types/index.js entry now suffices), and remove the plugin-shaped name/inject exports from search.ts/fetch.ts (renaming each apply to its applyWeb{Search,Fetch}Tool helper, still composed by the root plugin and re-exported from the index). Selective enablement stays via the existing { search?, fetch? } config. Docs updated to match. --- packages/web/tool-web/README.md | 2 +- packages/web/tool-web/package.json | 10 ---------- packages/web/tool-web/src/fetch.ts | 13 +------------ packages/web/tool-web/src/index.ts | 3 +-- packages/web/tool-web/src/search.ts | 13 +------------ packages/web/tool-web/tsdown.config.ts | 19 ------------------- 6 files changed, 4 insertions(+), 56 deletions(-) delete mode 100644 packages/web/tool-web/tsdown.config.ts diff --git a/packages/web/tool-web/README.md b/packages/web/tool-web/README.md index 762bfe0189..f57f38d0d5 100644 --- a/packages/web/tool-web/README.md +++ b/packages/web/tool-web/README.md @@ -2,7 +2,7 @@ The model-facing web tool suite — `web_search` and `web_fetch` — over the [web capability seam](../web/README.md) (`ctx.web`). It owns model-facing concerns only: tool names, JSON schemas, snake_case argument names, prompt sections, the result-count bound, result formatting, HTML→markdown presentation, and `presentCall`. All web access goes through `ctx.web`; this package never imports a concrete provider. -Each tool is also a subpath plugin (`@deepseek-ai/dsh-tool-web/search`, `/fetch`) for focused deployments. +Each tool is registered independently; a product that wants only one disables the other via config (`{ search: false }` / `{ fetch: false }`). ## Tools diff --git a/packages/web/tool-web/package.json b/packages/web/tool-web/package.json index c31c685e45..8c22afa9a8 100644 --- a/packages/web/tool-web/package.json +++ b/packages/web/tool-web/package.json @@ -11,21 +11,11 @@ "types": "./lib/types/index.d.ts", "default": "./lib/index.js" }, - "./search": { - "types": "./lib/types/search.d.ts", - "default": "./lib/search.js" - }, - "./fetch": { - "types": "./lib/types/fetch.d.ts", - "default": "./lib/fetch.js" - }, "./src/*": "./src/*", "./package.json": "./package.json" }, "files": [ "lib/index.js", - "lib/search.js", - "lib/fetch.js", "lib/types/**/*.d.ts", "lib/types/**/*.d.ts.map", "src" diff --git a/packages/web/tool-web/src/fetch.ts b/packages/web/tool-web/src/fetch.ts index a48ad41414..85977fbea4 100644 --- a/packages/web/tool-web/src/fetch.ts +++ b/packages/web/tool-web/src/fetch.ts @@ -3,8 +3,6 @@ * Execution goes through `ctx.web` — this module owns the model-facing schema, * argument validation, and PRESENTATION (HTML→markdown, truncation formatting), * while the fetch provider owns safe retrieval (transport, redirects, caps). - * - * @module @deepseek-ai/dsh-tool-web/fetch */ import type { Context } from 'cordis' @@ -51,7 +49,7 @@ export function presentFetchCall(args: { url: string; timeout_ms?: number }): To } /** Register the `web_fetch` tool and its system-prompt guidance. */ -export function apply(ctx: Context): void { +export function applyWebFetchTool(ctx: Context): void { ctx.systemPrompt.section({ name: 'tool:web_fetch', order: 111, @@ -76,12 +74,3 @@ export function apply(ctx: Context): void { presentCall: presentFetchCall, })) } - -/** Cordis plugin name used by loader diagnostics. */ -export const name = 'web-fetch' - -/** Services required by the `web_fetch` tool plugin. */ -export const inject = ['tools', 'web', 'systemPrompt'] - -/** Named helper for direct registration in the root plugin and tests. */ -export const applyWebFetchTool = apply diff --git a/packages/web/tool-web/src/index.ts b/packages/web/tool-web/src/index.ts index 031d7fe4cb..072fc6018e 100644 --- a/packages/web/tool-web/src/index.ts +++ b/packages/web/tool-web/src/index.ts @@ -1,8 +1,7 @@ /** * The model-facing web tool suite (`web_search`, `web_fetch`) over the `ctx.web` * seam. This root plugin registers the tools the product has ENABLED, composing - * the per-tool registration helpers; each tool is also exposed as a subpath - * plugin (`@deepseek-ai/dsh-tool-web/search`, `/fetch`) for focused deployments. + * the per-tool registration helpers (`applyWebSearchTool`, `applyWebFetchTool`). * * The package owns model-facing concerns only — tool names, JSON schemas, * argument validation, prompt sections, result-cap constants, result formatting, diff --git a/packages/web/tool-web/src/search.ts b/packages/web/tool-web/src/search.ts index 6ed9991903..2aa93ef10e 100644 --- a/packages/web/tool-web/src/search.ts +++ b/packages/web/tool-web/src/search.ts @@ -3,8 +3,6 @@ * Execution goes through `ctx.web` — this module owns only the model-facing * schema, argument validation, the result-count bound, and result formatting, * never provider selection or network access. - * - * @module @deepseek-ai/dsh-tool-web/search */ import type { Context } from 'cordis' @@ -70,7 +68,7 @@ export function presentSearchCall(args: { query: string }): ToolCallPresentation } /** Register the `web_search` tool and its system-prompt guidance. */ -export function apply(ctx: Context): void { +export function applyWebSearchTool(ctx: Context): void { ctx.systemPrompt.section({ name: 'tool:web_search', order: 110, @@ -94,12 +92,3 @@ export function apply(ctx: Context): void { presentCall: presentSearchCall, })) } - -/** Cordis plugin name used by loader diagnostics. */ -export const name = 'web-search' - -/** Services required by the `web_search` tool plugin. */ -export const inject = ['tools', 'web', 'systemPrompt'] - -/** Named helper for direct registration in the root plugin and tests. */ -export const applyWebSearchTool = apply diff --git a/packages/web/tool-web/tsdown.config.ts b/packages/web/tool-web/tsdown.config.ts deleted file mode 100644 index 0f75095d18..0000000000 --- a/packages/web/tool-web/tsdown.config.ts +++ /dev/null @@ -1,19 +0,0 @@ -import { defineConfig } from 'tsdown' - -/** - * tool-web exposes one package root plus one entry per tool plugin, so each tool - * can be loaded or replaced independently as a subpath plugin - * (`@deepseek-ai/dsh-tool-web/search`, `/fetch`). The root tsdown builds only - * `lib/types/index.js`, so this override adds the subpath entries. Declarations - * come from `tsc -b` (dts: false), matching every package. - */ -export default defineConfig({ - entry: ['lib/types/index.js', 'lib/types/search.js', 'lib/types/fetch.js'], - outDir: 'lib', - format: ['esm'], - platform: 'node', - target: 'es2024', - fixedExtension: false, - dts: false, - clean: false, -}) From b92a3c531a19710052a2a145e560a49e107b0d0e Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Mon, 29 Jun 2026 15:21:12 +0800 Subject: [PATCH 10/32] feat(web): add DeepSeek-backed web search provider MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add @deepseek-ai/dsh-web-search-deepseek: a WebSearchProvider that calls DeepSeek's Anthropic-compatible Messages API with the native web_search_20250305 server tool and parses the structured web_search_tool_result blocks into the ctx.web seam's WebSearchResult. - Namespace plugin (inject: ['web']), no default export — registers into ctx.web like dsh-llm-deepseek registers into ctx.llm. - Strict mode: a response with no web_search_tool_result block throws WEB_PROVIDER_ERROR rather than scraping URLs from model prose. - Reuses $DEEPSEEK_API_KEY; baseURL defaults to the Anthropic-compatible base (api.deepseek.com/anthropic/v1) and does NOT reuse $DEEPSEEK_BASE_URL, which belongs to the chat-completions LLM adapter. - snippet joined from text-block citations; sources deduped by url. - Two-stage build layout (outDir lib/types) matching the other web packages; registered in tsconfig.json, tsconfig.build.json, knip.json, and docs/module-graph.md. --- docs/module-graph.md | 2 + knip.json | 4 + packages/web/web-search-deepseek/README.md | 36 ++ packages/web/web-search-deepseek/package.json | 35 ++ packages/web/web-search-deepseek/src/index.ts | 81 +++++ .../web/web-search-deepseek/src/provider.ts | 217 ++++++++++++ packages/web/web-search-deepseek/src/types.ts | 58 ++++ .../web-search-deepseek/tests/deepseek.e2e.ts | 36 ++ .../tests/deepseek.spec.ts | 326 ++++++++++++++++++ .../web/web-search-deepseek/tsconfig.json | 24 ++ pnpm-lock.yaml | 13 + tsconfig.build.json | 1 + tsconfig.json | 1 + 13 files changed, 834 insertions(+) create mode 100644 packages/web/web-search-deepseek/README.md create mode 100644 packages/web/web-search-deepseek/package.json create mode 100644 packages/web/web-search-deepseek/src/index.ts create mode 100644 packages/web/web-search-deepseek/src/provider.ts create mode 100644 packages/web/web-search-deepseek/src/types.ts create mode 100644 packages/web/web-search-deepseek/tests/deepseek.e2e.ts create mode 100644 packages/web/web-search-deepseek/tests/deepseek.spec.ts create mode 100644 packages/web/web-search-deepseek/tsconfig.json diff --git a/docs/module-graph.md b/docs/module-graph.md index a17680cb6d..cddfabee14 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -25,6 +25,7 @@ graph TD llm-replay --> session session-persistence --> session web-fetch-local --> web + web-search-deepseek --> web web-search-exa --> web web-search-perplexity --> web invariants --> agent @@ -116,6 +117,7 @@ graph TD | `llm-replay` | `llm`, `session` | | `session-persistence` | `session` | | `web-fetch-local` | `web` | +| `web-search-deepseek` | `web` | | `web-search-exa` | `web` | | `web-search-perplexity` | `web` | | `invariants` | `agent`, `llm`, `session` | diff --git a/knip.json b/knip.json index 3f0a56097c..f0b8e44705 100644 --- a/knip.json +++ b/knip.json @@ -37,6 +37,10 @@ "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] }, + "packages/web/web-search-deepseek": { + "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], + "project": ["src/**/*.ts", "tests/**/*.ts"] + }, "packages/ui/acp-agent": { "entry": ["tests/**/*.spec.ts", "tests/**/*.e2e.ts"], "project": ["src/**/*.ts", "tests/**/*.ts"] diff --git a/packages/web/web-search-deepseek/README.md b/packages/web/web-search-deepseek/README.md new file mode 100644 index 0000000000..5b56601bbb --- /dev/null +++ b/packages/web/web-search-deepseek/README.md @@ -0,0 +1,36 @@ +# @deepseek-ai/dsh-web-search-deepseek + +A [DeepSeek](https://deepseek.com)-backed `WebSearchProvider` for the harness [web capability seam](../web/README.md) (`ctx.web`). It calls DeepSeek's **Anthropic-compatible Messages API** (`POST {baseURL}/messages`) with the native `web_search_20250305` server tool enabled, and maps the structured `web_search_tool_result` blocks DeepSeek returns into the seam's normalized `WebSearchResult`. + +This is an **implementation** package: it registers a provider into `ctx.web`, it does not own the key and it does not register a model-facing tool. Like `@deepseek-ai/dsh-llm-deepseek`, it is a function/namespace plugin (`inject: ['web']`). The Anthropic wire shape is a provider-private detail — it does **not** make this provider depend on `ctx.llm`. + +## How it differs from a dedicated search endpoint + +Exa and Perplexity expose dedicated search endpoints; DeepSeek does not. Instead this provider issues a **full Messages model call** carrying the `web_search` server tool, so one search costs a complete model turn in latency and tokens — heavier than a pure retrieval endpoint. DeepSeek runs the search server-side and returns **structured** `web_search_tool_result` blocks; the provider parses those blocks and **never scrapes URLs out of model prose**. + +**Strict mode**: if the response carries no `web_search_tool_result` block (native search did not trigger), the provider throws `WebError` `WEB_PROVIDER_ERROR` rather than degrading to prose-scraping — honest and debuggable. + +It reuses `$DEEPSEEK_API_KEY` (no new secret) but **not** `$DEEPSEEK_BASE_URL`: the search endpoint is the Anthropic-compatible base (`https://api.deepseek.com/anthropic/v1`), distinct from the chat-completions base (`https://api.deepseek.com`) the LLM adapter uses. + +## Config + +| Key | Default | Meaning | +|---|---|---| +| `apiKey` | `$DEEPSEEK_API_KEY` | DeepSeek API key. Empty/absent → provider `status()` reports `missing-credential`. Sent as both `x-api-key` and `Authorization: Bearer` (official vs Anthropic-compatible proxy). | +| `baseURL` | `https://api.deepseek.com/anthropic/v1` | Anthropic-compatible endpoint base; `/messages` is appended. Use a separate env var such as `$DEEPSEEK_SEARCH_BASE_URL` when overriding it; do not reuse `$DEEPSEEK_BASE_URL`, which belongs to the chat-completions LLM adapter. An unparseable value makes `status()` report `misconfigured`. | +| `model` | `deepseek-v4-flash` | Anthropic-format model name. | +| `apiVersion` | `2023-06-01` | `anthropic-version` header value. | +| `maxTokens` | `4096` | Upper bound on generated tokens for the Messages request. | +| `maxUses` | `5` | Maximum `web_search` server-tool uses per request. | + +```yaml +- id: web-search-deepseek + name: '@deepseek-ai/dsh-web-search-deepseek' + config: + apiKey: !!js process.env.DEEPSEEK_API_KEY + baseURL: !!js process.env.DEEPSEEK_SEARCH_BASE_URL +``` + +## Mapping + +DeepSeek returns no provider-generated answer surface this provider trusts as `content`, so `content` is omitted. `sources[]` is built from the `web_search_result` items inside `web_search_tool_result` blocks: `url` ← `url`, `title` ← `title`, `publishedAt` ← `page_age`. The per-source `snippet` lives separately in a `text` block's `citations[]` (a `cited_text` keyed by `url`), so the provider joins the two — a result with no citation excerpt simply has no `snippet`. Results are deduped by `url` (a `maxUses > 1` request can surface the same URL across searches). DeepSeek's `web_search` has no result-count knob (only `maxUses`), so `maxResults` is enforced by the seam (truncating `sources[]` and setting `truncated`). Provider failures surface as `WebError` `WEB_PROVIDER_ERROR`; an aborted request surfaces as `WEB_ABORTED`. diff --git a/packages/web/web-search-deepseek/package.json b/packages/web/web-search-deepseek/package.json new file mode 100644 index 0000000000..617e9f2768 --- /dev/null +++ b/packages/web/web-search-deepseek/package.json @@ -0,0 +1,35 @@ +{ + "name": "@deepseek-ai/dsh-web-search-deepseek", + "description": "DeepSeek-backed search provider (native web_search via the Anthropic-compatible API) for the DeepSeek Harness web capability seam (ctx.web)", + "version": "0.0.1", + "private": true, + "type": "module", + "main": "lib/index.js", + "types": "lib/types/index.d.ts", + "exports": { + ".": { + "types": "./lib/types/index.d.ts", + "default": "./lib/index.js" + }, + "./src/*": "./src/*", + "./package.json": "./package.json" + }, + "files": [ + "lib/index.js", + "lib/types/**/*.d.ts", + "lib/types/**/*.d.ts.map", + "src" + ], + "license": "BSD-3-Clause", + "peerDependencies": { + "@deepseek-ai/dsh-web": "^0.0.1", + "cordis": "^4.0.0-rc.6" + }, + "dependencies": { + "schemastery": "^3.18.0" + }, + "devDependencies": { + "@deepseek-ai/dsh-web": "workspace:^", + "cordis": "^4.0.0-rc.6" + } +} diff --git a/packages/web/web-search-deepseek/src/index.ts b/packages/web/web-search-deepseek/src/index.ts new file mode 100644 index 0000000000..9a04955dd9 --- /dev/null +++ b/packages/web/web-search-deepseek/src/index.ts @@ -0,0 +1,81 @@ +/** + * `@deepseek-ai/dsh-web-search-deepseek`: registers a DeepSeek-backed + * `WebSearchProvider` with `ctx.web`. A function/namespace plugin (NOT a + * default-export service): it registers INTO the seam's provider registry, like + * `@deepseek-ai/dsh-llm-deepseek` registers an adapter into `ctx.llm`. + * + * The provider talks to DeepSeek's Anthropic-compatible Messages API with the + * native `web_search_20250305` server tool. It reuses `$DEEPSEEK_API_KEY` (no + * new secret) but NOT `$DEEPSEEK_BASE_URL` — the search endpoint is the + * Anthropic-compatible base, distinct from the chat-completions base the LLM + * adapter uses. + * + * @module @deepseek-ai/dsh-web-search-deepseek + */ + +import type { Context } from 'cordis' +import z from 'schemastery' +import type {} from '@deepseek-ai/dsh-web' +import { + DeepSeekSearchProvider, + DEEPSEEK_DEFAULT_API_VERSION, + DEEPSEEK_DEFAULT_BASE_URL, + DEEPSEEK_DEFAULT_MAX_TOKENS, + DEEPSEEK_DEFAULT_MAX_USES, + DEEPSEEK_DEFAULT_MODEL, +} from './provider.ts' + +export { + DeepSeekSearchProvider, + DEEPSEEK_DEFAULT_API_VERSION, + DEEPSEEK_DEFAULT_BASE_URL, + DEEPSEEK_DEFAULT_MAX_TOKENS, + DEEPSEEK_DEFAULT_MAX_USES, + DEEPSEEK_DEFAULT_MODEL, + DEEPSEEK_PROVIDER_ID, + citationSnippets, + mapAnthropicResponse, +} from './provider.ts' +export type { DeepSeekSearchProviderOptions } from './provider.ts' + +/** Cordis plugin name used by loader diagnostics. */ +export const name = 'web-search-deepseek' + +/** The web seam this provider registers into. */ +export const inject = ['web'] + +export interface Config { + /** DeepSeek API key. Falls back to `$DEEPSEEK_API_KEY`. Empty → unavailable. */ + apiKey?: string + /** Anthropic-compatible endpoint base; `/messages` is appended. */ + baseURL?: string + /** Anthropic-format model name. Defaults to `deepseek-v4-flash`. */ + model?: string + /** `anthropic-version` header value. Defaults to `2023-06-01`. */ + apiVersion?: string + /** Upper bound on generated tokens for the Messages request. Defaults to 4096. */ + maxTokens?: number + /** Maximum `web_search` server-tool uses per request. Defaults to 5. */ + maxUses?: number +} + +export const Config: z = z.object({ + apiKey: z.string(), + baseURL: z.string(), + model: z.string(), + apiVersion: z.string(), + maxTokens: z.natural(), + maxUses: z.natural(), +}) + +/** Register the DeepSeek search provider with `ctx.web`. */ +export function apply(ctx: Context, config: Config): void { + ctx.web.registerSearchProvider(new DeepSeekSearchProvider({ + apiKey: config.apiKey ?? process.env.DEEPSEEK_API_KEY ?? '', + baseURL: config.baseURL ?? DEEPSEEK_DEFAULT_BASE_URL, + model: config.model ?? DEEPSEEK_DEFAULT_MODEL, + apiVersion: config.apiVersion ?? DEEPSEEK_DEFAULT_API_VERSION, + maxTokens: config.maxTokens ?? DEEPSEEK_DEFAULT_MAX_TOKENS, + maxUses: config.maxUses ?? DEEPSEEK_DEFAULT_MAX_USES, + })) +} diff --git a/packages/web/web-search-deepseek/src/provider.ts b/packages/web/web-search-deepseek/src/provider.ts new file mode 100644 index 0000000000..5d02ad01ab --- /dev/null +++ b/packages/web/web-search-deepseek/src/provider.ts @@ -0,0 +1,217 @@ +/** + * `DeepSeekSearchProvider`: a `WebSearchProvider` backed by DeepSeek's + * Anthropic-compatible Messages API with the native `web_search_20250305` server + * tool enabled. + * + * Unlike a dedicated search endpoint (Exa's `POST /search`, Perplexity's + * `/chat/completions`), this issues a FULL Messages model call carrying a server + * tool, so a search costs a complete model turn in latency and tokens. In return + * DeepSeek runs the search server-side and returns STRUCTURED + * `web_search_tool_result` blocks — this provider parses those blocks and never + * scrapes URLs out of model prose. Strict mode: if the response carries no + * `web_search_tool_result` block (native search did not trigger), it throws + * `WEB_PROVIDER_ERROR` rather than degrading to prose-scraping. + * + * Network requests use platform-native `fetch` (Node 24), mirroring + * `@deepseek-ai/dsh-llm-deepseek`'s adapter — not a cordis HTTP-client service. + * The Anthropic wire shape is a provider-private detail and does NOT make this + * provider depend on `ctx.llm`. + * + * @module @deepseek-ai/dsh-web-search-deepseek/provider + */ + +import { WebError } from '@deepseek-ai/dsh-web' +import type { + WebProviderStatus, + WebSearchProvider, + WebSearchRequest, + WebSearchResult, + WebSearchSource, +} from '@deepseek-ai/dsh-web' +import type { + AnthropicError, + AnthropicResponse, + ContentBlock, + TextBlock, + WebSearchToolResultBlock, +} from './types.ts' + +/** Stable id this provider registers under. */ +export const DEEPSEEK_PROVIDER_ID = 'deepseek' + +/** + * Default endpoint: DeepSeek's Anthropic-compatible surface, `/v1` included + * (`/messages` is appended). This is NOT the chat-completions base + * (`https://api.deepseek.com`) `@deepseek-ai/dsh-llm-deepseek` uses, so this + * provider does NOT reuse `$DEEPSEEK_BASE_URL` — only the API key is shared. + */ +export const DEEPSEEK_DEFAULT_BASE_URL = 'https://api.deepseek.com/anthropic/v1' + +/** Default Anthropic-format model name (aligned with the repo's DeepSeek model vocabulary). */ +export const DEEPSEEK_DEFAULT_MODEL = 'deepseek-v4-flash' + +/** Default `anthropic-version` header value. */ +export const DEEPSEEK_DEFAULT_API_VERSION = '2023-06-01' + +/** Default upper bound on generated tokens for the Messages request. */ +export const DEEPSEEK_DEFAULT_MAX_TOKENS = 4096 + +/** Default maximum `web_search` server-tool uses per request. */ +export const DEEPSEEK_DEFAULT_MAX_USES = 5 + +/** Attribution header sent on every request. Bump with the package version. */ +const USER_AGENT = 'deepseek-harness/0.0.1' + +export interface DeepSeekSearchProviderOptions { + /** DeepSeek API key. Empty/absent → `status()` reports `missing-credential`. */ + apiKey: string + /** Endpoint base; `/messages` is appended. */ + baseURL: string + /** Anthropic-format model name. */ + model: string + /** `anthropic-version` header value. */ + apiVersion: string + /** Upper bound on generated tokens for the Messages request. */ + maxTokens: number + /** Maximum `web_search` server-tool uses per request. */ + maxUses: number +} + +/** + * Build a `url → cited_text` map from every `text` block's `citations[]`. This + * is the snippet surface: Anthropic `web_search_result` items carry + * `url`/`title`/`page_age` but typically NO inline snippet — the excerpt lives + * in a separate `text` block's citation, keyed by `url` (first occurrence wins). + */ +export function citationSnippets(blocks: readonly ContentBlock[]): Map { + const map = new Map() + for (const block of blocks) { + if (block.type !== 'text') continue + for (const cite of (block as TextBlock).citations ?? []) { + if (cite.url != null && cite.url.length > 0 && cite.cited_text != null && cite.cited_text.length > 0 && !map.has(cite.url)) { + map.set(cite.url, cite.cited_text) + } + } + } + return map +} + +/** + * Map a DeepSeek Anthropic Messages response to a normalized search result. + * Walks `web_search_tool_result` blocks for citeable `web_search_result` items, + * joins each to its citation excerpt as `snippet`, and dedupes by `url` (a + * `max_uses > 1` request can surface the same URL across searches). The seam + * owns the final `maxResults` truncation, so `truncated` is always `false` here. + * + * Throws `WEB_PROVIDER_ERROR` (strict mode) when no `web_search_tool_result` + * block is present — native search did not trigger, and prose-scraping is not a + * fallback. + */ +export function mapAnthropicResponse(query: string, response: AnthropicResponse): WebSearchResult { + const blocks = response.content ?? [] + const resultBlocks = blocks.filter( + (block): block is WebSearchToolResultBlock => block.type === 'web_search_tool_result', + ) + if (resultBlocks.length === 0) { + throw new WebError( + 'DeepSeek returned no web_search_tool_result blocks; the request may not have triggered native web search', + 'WEB_PROVIDER_ERROR', + ) + } + + const snippets = citationSnippets(blocks) + const seen = new Set() + const sources: WebSearchSource[] = [] + for (const block of resultBlocks) { + for (const item of block.content ?? []) { + if (item.type !== 'web_search_result' || item.url.length === 0 || seen.has(item.url)) continue + seen.add(item.url) + const snippet = snippets.get(item.url) + sources.push({ + url: item.url, + ...item.title != null && item.title.length > 0 ? { title: item.title } : {}, + ...snippet != null && snippet.length > 0 ? { snippet } : {}, + ...item.page_age != null && item.page_age.length > 0 ? { publishedAt: item.page_age } : {}, + }) + } + } + return { providerId: DEEPSEEK_PROVIDER_ID, query, sources, truncated: false } +} + +/** The DeepSeek-backed search provider. */ +export class DeepSeekSearchProvider implements WebSearchProvider { + readonly id = DEEPSEEK_PROVIDER_ID + + constructor(private readonly options: DeepSeekSearchProviderOptions) {} + + status(): WebProviderStatus { + if (this.options.apiKey.length === 0) return { available: false, reason: 'missing-credential' } + if (!URL.canParse(this.options.baseURL)) return { available: false, reason: 'misconfigured' } + return { available: true } + } + + async search(request: WebSearchRequest, exec?: { readonly signal?: AbortSignal }): Promise { + let response: Response + try { + response = await fetch(`${this.options.baseURL}/messages`, { + method: 'POST', + headers: { + // Official DeepSeek expects `x-api-key`; an Anthropic-compatible proxy + // may expect `Authorization: Bearer` — send both so either resolves. + 'x-api-key': this.options.apiKey, + 'authorization': `Bearer ${this.options.apiKey}`, + 'anthropic-version': this.options.apiVersion, + 'content-type': 'application/json', + 'accept': 'application/json', + 'user-agent': USER_AGENT, + }, + body: JSON.stringify({ + model: this.options.model, + max_tokens: this.options.maxTokens, + messages: [{ + role: 'user', + content: [{ type: 'text', text: `Perform a web search for the query: ${request.query}` }], + }], + tools: [{ type: 'web_search_20250305', name: 'web_search', max_uses: this.options.maxUses }], + }), + ...exec?.signal ? { signal: exec.signal } : {}, + }) + } catch (error: unknown) { + if (isAbortError(error)) throw new WebError('DeepSeek search aborted', 'WEB_ABORTED', { cause: error }) + throw new WebError(`DeepSeek search request failed: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) + } + + if (!response.ok) { + const status = response.status + let message = `DeepSeek API error (HTTP ${status})` + try { + const parsed = await response.json() as AnthropicError + const detail = typeof parsed.error === 'string' ? parsed.error : parsed.error?.message ?? parsed.message + if (detail !== undefined && detail.length > 0) message = detail + } catch (error: unknown) { + // An abort fired mid-body must surface as WEB_ABORTED, not be swallowed + // into a generic HTTP-error message — cancellation is not a provider + // error (the seam's cancellation contract). + if (isAbortError(error)) throw new WebError('DeepSeek search aborted', 'WEB_ABORTED', { cause: error }) + // Otherwise: the HTTP status is already captured in `message` above; a + // malformed/non-JSON error body (normal for gateway 5xx/429s) can only + // cost a richer provider message, never the real error. + } + throw new WebError(message, 'WEB_PROVIDER_ERROR') + } + + let payload: AnthropicResponse + try { + payload = await response.json() as AnthropicResponse + } catch (error: unknown) { + if (isAbortError(error)) throw new WebError('DeepSeek search aborted', 'WEB_ABORTED', { cause: error }) + throw new WebError(`DeepSeek returned an unparseable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) + } + return mapAnthropicResponse(request.query, payload) + } +} + +/** True for a fetch/`AbortSignal` abort, surfaced as `WEB_ABORTED`. */ +function isAbortError(error: unknown): boolean { + return error instanceof DOMException && error.name === 'AbortError' +} diff --git a/packages/web/web-search-deepseek/src/types.ts b/packages/web/web-search-deepseek/src/types.ts new file mode 100644 index 0000000000..bd88ed9663 --- /dev/null +++ b/packages/web/web-search-deepseek/src/types.ts @@ -0,0 +1,58 @@ +/** + * Wire types for DeepSeek's Anthropic-compatible Messages API + * (`POST {baseURL}/messages`) with the native `web_search_20250305` server tool + * enabled. Types only — no runtime code. + * + * DeepSeek returns structured content blocks: `web_search_tool_result` blocks + * carry the citeable `web_search_result` items (`url`/`title`/`page_age`), while + * the snippet/excerpt for a URL lives separately in a `text` block's + * `citations[]` (a `cited_text` keyed by `url`). The provider joins the two. + * + * The Anthropic wire shape is a provider-private detail; it does not make this + * provider depend on `ctx.llm`. + * + * @module @deepseek-ai/dsh-web-search-deepseek/types + */ + +/** A `web_search_result` item inside a `web_search_tool_result` block. */ +export interface WebSearchResultItem { + type: string + url: string + title?: string | null + /** Provider-supplied page age/recency string (mapped to `publishedAt`). */ + page_age?: string | null +} + +/** A `web_search_tool_result` content block: the citeable result surface. */ +export interface WebSearchToolResultBlock { + type: 'web_search_tool_result' + content?: WebSearchResultItem[] +} + +/** One citation location inside a `text` block (the snippet surface). */ +export interface CitationLocation { + type?: string + url?: string | null + cited_text?: string | null +} + +/** A `text` content block: the model's prose plus per-URL citations. */ +export interface TextBlock { + type: 'text' + text?: string | null + citations?: CitationLocation[] +} + +/** Any content block; only `web_search_tool_result` and `text` are consumed. */ +export type ContentBlock = WebSearchToolResultBlock | TextBlock | { type: string } + +/** DeepSeek's Anthropic Messages response envelope. */ +export interface AnthropicResponse { + content?: ContentBlock[] +} + +/** DeepSeek's error response envelope (best-effort; fields vary). */ +export interface AnthropicError { + error?: { message?: string } | string + message?: string +} diff --git a/packages/web/web-search-deepseek/tests/deepseek.e2e.ts b/packages/web/web-search-deepseek/tests/deepseek.e2e.ts new file mode 100644 index 0000000000..d06e384b31 --- /dev/null +++ b/packages/web/web-search-deepseek/tests/deepseek.e2e.ts @@ -0,0 +1,36 @@ +import { describe, expect, it } from 'vitest' +import { + DeepSeekSearchProvider, + DEEPSEEK_DEFAULT_API_VERSION, + DEEPSEEK_DEFAULT_BASE_URL, + DEEPSEEK_DEFAULT_MAX_TOKENS, + DEEPSEEK_DEFAULT_MAX_USES, + DEEPSEEK_DEFAULT_MODEL, +} from '@deepseek-ai/dsh-web-search-deepseek' + +/** + * Real-API smoke for the DeepSeek search provider. Self-skips without + * `$DEEPSEEK_API_KEY`, per the with-key e2e policy in AGENTS.md § Secrets. This + * is the only test that proves DeepSeek's Anthropic-compatible endpoint actually + * triggers native `web_search` and returns the structured result blocks the + * provider parses — a mock cannot confirm the wire shape is real. + */ +const apiKey = process.env.DEEPSEEK_API_KEY +const maybe = apiKey !== undefined && apiKey.length > 0 ? describe : describe.skip + +maybe('DeepSeekSearchProvider real API', () => { + it('returns citeable sources for a live query via native web_search', async () => { + const provider = new DeepSeekSearchProvider({ + apiKey: apiKey!, + baseURL: process.env.DEEPSEEK_SEARCH_BASE_URL ?? DEEPSEEK_DEFAULT_BASE_URL, + model: process.env.DEEPSEEK_SEARCH_MODEL ?? DEEPSEEK_DEFAULT_MODEL, + apiVersion: DEEPSEEK_DEFAULT_API_VERSION, + maxTokens: DEEPSEEK_DEFAULT_MAX_TOKENS, + maxUses: DEEPSEEK_DEFAULT_MAX_USES, + }) + const result = await provider.search({ query: 'What is the DeepSeek coding agent?', maxResults: 5 }) + expect(result.providerId).toBe('deepseek') + expect(result.sources.length).toBeGreaterThan(0) + for (const source of result.sources) expect(source.url).toMatch(/^https?:\/\//) + }, 60_000) +}) diff --git a/packages/web/web-search-deepseek/tests/deepseek.spec.ts b/packages/web/web-search-deepseek/tests/deepseek.spec.ts new file mode 100644 index 0000000000..ff6b37cfa2 --- /dev/null +++ b/packages/web/web-search-deepseek/tests/deepseek.spec.ts @@ -0,0 +1,326 @@ +import { afterEach, describe, expect, it, vi } from 'vitest' +import { Context } from 'cordis' +import Loader from '@cordisjs/plugin-loader' +import WebService from '@deepseek-ai/dsh-web' +import { + DeepSeekSearchProvider, + citationSnippets, + mapAnthropicResponse, + DEEPSEEK_PROVIDER_ID, +} from '@deepseek-ai/dsh-web-search-deepseek' +import * as deepseekPlugin from '@deepseek-ai/dsh-web-search-deepseek' +import type { AnthropicResponse } from '@deepseek-ai/dsh-web-search-deepseek/src/types.ts' + +const options = { + apiKey: 'ds-key', + baseURL: 'https://api.deepseek.test/anthropic/v1', + model: 'deepseek-chat', + apiVersion: '2023-06-01', + maxTokens: 4096, + maxUses: 5, +} + +function jsonResponse(body: unknown, init: ResponseInit = {}): Response { + return new Response(JSON.stringify(body), { status: 200, headers: { 'content-type': 'application/json' }, ...init }) +} + +/** A response with one result block plus a text block carrying the snippet. */ +function searchResponse(): AnthropicResponse { + return { + content: [ + { type: 'text', text: 'Here is what I found.', citations: [{ type: 'web_search_result_location', url: 'https://a.test', cited_text: 'excerpt for A' }] }, + { + type: 'web_search_tool_result', + content: [ + { type: 'web_search_result', url: 'https://a.test', title: 'A', page_age: '2026-02-02' }, + { type: 'web_search_result', url: 'https://b.test', title: 'B' }, + ], + }, + ], + } +} + +afterEach(() => { + vi.unstubAllGlobals() +}) + +describe('citationSnippets', () => { + it('maps url → cited_text from text blocks, first occurrence wins', () => { + const map = citationSnippets([ + { type: 'text', citations: [{ url: 'https://a.test', cited_text: 'first' }, { url: 'https://a.test', cited_text: 'second' }] }, + { type: 'text', citations: [{ url: 'https://b.test', cited_text: 'b text' }] }, + ]) + expect(map.get('https://a.test')).toBe('first') + expect(map.get('https://b.test')).toBe('b text') + }) + + it('ignores citations missing url or cited_text', () => { + const map = citationSnippets([ + { type: 'text', citations: [{ url: 'https://a.test' }, { cited_text: 'orphan' }, { url: '', cited_text: 'empty url' }] }, + ]) + expect(map.size).toBe(0) + }) +}) + +describe('mapAnthropicResponse', () => { + it('joins result items to citation snippets and maps page_age to publishedAt', () => { + const result = mapAnthropicResponse('q', searchResponse()) + expect(result).toEqual({ + providerId: DEEPSEEK_PROVIDER_ID, + query: 'q', + sources: [ + { url: 'https://a.test', title: 'A', snippet: 'excerpt for A', publishedAt: '2026-02-02' }, + { url: 'https://b.test', title: 'B' }, + ], + truncated: false, + }) + }) + + it('dedupes repeated urls across result blocks (first wins)', () => { + const result = mapAnthropicResponse('q', { + content: [ + { type: 'web_search_tool_result', content: [{ type: 'web_search_result', url: 'https://a.test', title: 'first' }] }, + { type: 'web_search_tool_result', content: [{ type: 'web_search_result', url: 'https://a.test', title: 'second' }] }, + ], + }) + expect(result.sources).toEqual([{ url: 'https://a.test', title: 'first' }]) + }) + + it('skips non-result items and items with an empty url', () => { + const result = mapAnthropicResponse('q', { + content: [{ + type: 'web_search_tool_result', + content: [ + { type: 'web_search_result_error', url: 'https://err.test' }, + { type: 'web_search_result', url: '' }, + { type: 'web_search_result', url: 'https://ok.test' }, + ], + }], + }) + expect(result.sources).toEqual([{ url: 'https://ok.test' }]) + }) + + it('omits optional fields when absent or empty', () => { + const result = mapAnthropicResponse('q', { + content: [{ type: 'web_search_tool_result', content: [{ type: 'web_search_result', url: 'https://a.test', title: '', page_age: '' }] }], + }) + expect(result.sources).toEqual([{ url: 'https://a.test' }]) + }) + + it('tolerates a text block with no citations', () => { + const result = mapAnthropicResponse('q', { + content: [ + { type: 'text', text: 'no citations here' }, + { type: 'web_search_tool_result', content: [{ type: 'web_search_result', url: 'https://a.test', title: 'A' }] }, + ], + }) + expect(result.sources).toEqual([{ url: 'https://a.test', title: 'A' }]) + }) + + it('tolerates a result block with no content array', () => { + const result = mapAnthropicResponse('q', { + content: [ + { type: 'web_search_tool_result' }, + { type: 'web_search_tool_result', content: [{ type: 'web_search_result', url: 'https://a.test' }] }, + ], + }) + expect(result.sources).toEqual([{ url: 'https://a.test' }]) + }) + + it('throws WEB_PROVIDER_ERROR (strict mode) when no result block is present', () => { + expect(() => mapAnthropicResponse('q', { content: [{ type: 'text', text: 'just prose, no search' }] })) + .toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + + it('throws WEB_PROVIDER_ERROR when content is absent entirely', () => { + expect(() => mapAnthropicResponse('q', {})) + .toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) +}) + +describe('DeepSeekSearchProvider status', () => { + it('is unavailable without a key', () => { + expect(new DeepSeekSearchProvider({ ...options, apiKey: '' }).status()) + .toEqual({ available: false, reason: 'missing-credential' }) + }) + + it('is available with a key', () => { + expect(new DeepSeekSearchProvider(options).status()).toEqual({ available: true }) + }) + + it('is misconfigured when the base URL is unparseable', () => { + expect(new DeepSeekSearchProvider({ ...options, baseURL: 'not a url' }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + }) +}) + +describe('DeepSeekSearchProvider request mapping', () => { + it('posts an Anthropic Messages request enabling the web_search server tool', async () => { + const fetchMock = vi.fn(async () => jsonResponse(searchResponse())) + vi.stubGlobal('fetch', fetchMock) + await new DeepSeekSearchProvider(options).search({ query: 'hello' }) + const [url, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(url).toBe('https://api.deepseek.test/anthropic/v1/messages') + const headers = init.headers as Record + expect(headers['x-api-key']).toBe('ds-key') + expect(headers['authorization']).toBe('Bearer ds-key') + expect(headers['anthropic-version']).toBe('2023-06-01') + expect(JSON.parse(init.body as string)).toEqual({ + model: 'deepseek-chat', + max_tokens: 4096, + messages: [{ role: 'user', content: [{ type: 'text', text: 'Perform a web search for the query: hello' }] }], + tools: [{ type: 'web_search_20250305', name: 'web_search', max_uses: 5 }], + }) + }) + + it('forwards the abort signal', async () => { + const fetchMock = vi.fn(async () => jsonResponse(searchResponse())) + vi.stubGlobal('fetch', fetchMock) + const controller = new AbortController() + await new DeepSeekSearchProvider(options).search({ query: 'q' }, { signal: controller.signal }) + const [, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(init.signal).toBe(controller.signal) + }) +}) + +describe('DeepSeekSearchProvider error handling', () => { + it('maps an HTTP error to WEB_PROVIDER_ERROR with the provider message', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({ error: { message: 'rate limited' } }, { status: 429 }))) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR', message: 'rate limited' })) + }) + + it('handles a string-form error body', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({ error: 'bad request' }, { status: 400 }))) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ message: 'bad request' })) + }) + + it('keeps a status-line message when the error body is not JSON', async () => { + vi.stubGlobal('fetch', vi.fn(async () => new Response('upstream error', { status: 503 }))) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ message: 'DeepSeek API error (HTTP 503)' })) + }) + + it('keeps the status-line message when the JSON error body carries no detail', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({}, { status: 500 }))) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ message: 'DeepSeek API error (HTTP 500)' })) + }) + + it('maps an abort to WEB_ABORTED', async () => { + vi.stubGlobal('fetch', vi.fn(() => Promise.reject(new DOMException('aborted', 'AbortError')))) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + + it('maps an unparseable success body to WEB_PROVIDER_ERROR', async () => { + vi.stubGlobal('fetch', vi.fn(async () => new Response('not json', { status: 200 }))) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + + it('surfaces an abort during success-body parse as WEB_ABORTED', async () => { + const body = { json: () => Promise.reject(new DOMException('aborted', 'AbortError')), ok: true, status: 200 } + vi.stubGlobal('fetch', vi.fn(async () => body as unknown as Response)) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + + it('surfaces an abort during error-body parse as WEB_ABORTED', async () => { + const body = { json: () => Promise.reject(new DOMException('aborted', 'AbortError')), ok: false, status: 500 } + vi.stubGlobal('fetch', vi.fn(async () => body as unknown as Response)) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_ABORTED' })) + }) + + it('maps a network failure to WEB_PROVIDER_ERROR', async () => { + vi.stubGlobal('fetch', vi.fn(() => Promise.reject(new TypeError('connection refused')))) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + + it('strict mode flows through search(): a prose-only response throws WEB_PROVIDER_ERROR', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({ content: [{ type: 'text', text: 'no search happened' }] }))) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) +}) + +describe('web-search-deepseek plugin registration', () => { + it('registers the provider into ctx.web (HMR-safe)', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: DEEPSEEK_PROVIDER_ID }) + const fiber = await ctx.plugin(deepseekPlugin, { apiKey: 'ds-key' }) + expect(ctx.web.searchStatus()).toEqual({ available: true, providerId: DEEPSEEK_PROVIDER_ID }) + await fiber.dispose() + expect(ctx.web.searchStatus()).toEqual({ available: false, reason: 'configured-missing' }) + }) + + it('has no default export (namespace plugin export shape)', () => { + expect('default' in deepseekPlugin).toBe(false) + }) + + it('survives the real Loader unwrapExports path keeping name/inject/Config', () => { + // A stray `export default apply` would make the cordis Loader's + // unwrapExports (`exports.default ?? exports`) collapse the module to the + // bare `apply` function, DROPPING `inject: ['web']` — the plugin would then + // read ctx.web without injecting it and throw "cannot get property … without + // inject" the moment it loads. A hand-built ctx.plugin(namespace) mount + // bypasses unwrapExports and cannot catch that, so drive the real path. + // Prove it bites: add `export default apply` to src/index.ts, watch this go + // red, revert. + const loader = Object.create(Loader.prototype) as Loader + const unwrapped = loader.unwrapExports(deepseekPlugin) as Record + expect(unwrapped).toBe(deepseekPlugin) + expect(unwrapped.name).toBe('web-search-deepseek') + expect(unwrapped.inject).toEqual(['web']) + expect(typeof unwrapped.apply).toBe('function') + }) + + it('boots over ctx.web through the unwrapped module without an inject error', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: DEEPSEEK_PROVIDER_ID }) + const loader = Object.create(Loader.prototype) as Loader + const unwrapped = loader.unwrapExports(deepseekPlugin) as Parameters[0] + // A collapsed export shape (dropped inject) would throw "without inject" here. + const fiber = await ctx.plugin(unwrapped, { apiKey: 'ds-key' }) + expect(ctx.web.searchStatus()).toEqual({ available: true, providerId: DEEPSEEK_PROVIDER_ID }) + await fiber.dispose() + }) + + it('falls back to the env key and defaults when config omits them', async () => { + const prev = process.env.DEEPSEEK_API_KEY + process.env.DEEPSEEK_API_KEY = 'env-key' + try { + const fetchMock = vi.fn(async () => jsonResponse(searchResponse())) + vi.stubGlobal('fetch', fetchMock) + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: DEEPSEEK_PROVIDER_ID }) + const fiber = await ctx.plugin(deepseekPlugin, {}) + expect(ctx.web.searchStatus()).toEqual({ available: true, providerId: DEEPSEEK_PROVIDER_ID }) + await ctx.web.search({ query: 'q' }) + const [url, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(url).toBe('https://api.deepseek.com/anthropic/v1/messages') + expect((init.headers as Record)['x-api-key']).toBe('env-key') + expect(JSON.parse(init.body as string)).toMatchObject({ model: 'deepseek-v4-flash' }) + await fiber.dispose() + } finally { + if (prev === undefined) delete process.env.DEEPSEEK_API_KEY + else process.env.DEEPSEEK_API_KEY = prev + } + }) + + it('is unavailable when neither config nor env supplies a key', async () => { + const prev = process.env.DEEPSEEK_API_KEY + delete process.env.DEEPSEEK_API_KEY + try { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: DEEPSEEK_PROVIDER_ID }) + await ctx.plugin(deepseekPlugin, {}) + expect(ctx.web.searchStatus()).toEqual({ available: false, reason: 'configured-unavailable' }) + } finally { + if (prev !== undefined) process.env.DEEPSEEK_API_KEY = prev + } + }) +}) diff --git a/packages/web/web-search-deepseek/tsconfig.json b/packages/web/web-search-deepseek/tsconfig.json new file mode 100644 index 0000000000..aa7c949fec --- /dev/null +++ b/packages/web/web-search-deepseek/tsconfig.json @@ -0,0 +1,24 @@ +{ + "extends": "../../../tsconfig.base.json", + "compilerOptions": { + "rootDir": "src", + "outDir": "lib/types" + }, + "include": [ + "src" + ], + "references": [ + { + "path": "../../../vendor/cosmokit" + }, + { + "path": "../../../vendor/cordis" + }, + { + "path": "../../../vendor/schemastery" + }, + { + "path": "../web" + } + ] +} diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index a393b6c4b9..a4e0811228 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -763,6 +763,19 @@ importers: specifier: ^4.0.0-rc.6 version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/web/web-search-deepseek: + dependencies: + schemastery: + specifier: ^3.18.0 + version: 3.18.0 + devDependencies: + '@deepseek-ai/dsh-web': + specifier: workspace:^ + version: link:../web + cordis: + specifier: ^4.0.0-rc.6 + version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) + packages/web/web-search-exa: dependencies: schemastery: diff --git a/tsconfig.build.json b/tsconfig.build.json index fb7a058ea8..840b9aee5f 100644 --- a/tsconfig.build.json +++ b/tsconfig.build.json @@ -30,6 +30,7 @@ { "path": "./packages/web/web" }, { "path": "./packages/web/web-search-exa" }, { "path": "./packages/web/web-search-perplexity" }, + { "path": "./packages/web/web-search-deepseek" }, { "path": "./packages/web/web-fetch-local" }, { "path": "./packages/web/tool-web" }, { "path": "./packages/support/invariants" }, diff --git a/tsconfig.json b/tsconfig.json index 120ad5a4fb..ba0af75248 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -41,6 +41,7 @@ { "path": "./packages/web/web" }, { "path": "./packages/web/web-search-exa" }, { "path": "./packages/web/web-search-perplexity" }, + { "path": "./packages/web/web-search-deepseek" }, { "path": "./packages/web/web-fetch-local" }, { "path": "./packages/web/tool-web" }, { "path": "./packages/support/invariants" }, From 8395722db555c2e44d3477d46df551b621d76b33 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Mon, 29 Jun 2026 17:23:11 +0800 Subject: [PATCH 11/32] fix: address codex review findings on web seam - search providers (exa/perplexity/deepseek): map the parsed response INSIDE the parse try, so a well-formed body of the wrong shape surfaces as WEB_PROVIDER_ERROR instead of escaping as a raw TypeError; a WebError the mapper throws on purpose is re-thrown untouched - web-fetch-local: validate numeric limits at plugin construction (positive finite caps; non-negative integer maxRedirects) rather than constructing a provider with nonsensical values - web-fetch-local: enforce the redirect budget BEFORE resolving each hop, so maxRedirects:N follows exactly N redirects and an over-limit hop reports "exceeded the maximum" rather than misdiagnosing a cross-origin block - drop the stale dsh-tool-web/search and /fetch path aliases (the package no longer declares those subpath exports) - strip trailing EOF blank lines flagged by git diff --check Each fix carries a regression test. --- packages/web/tool-web/src/index.ts | 1 - .../web/tool-web/tests/integration.spec.ts | 1 - packages/web/web-fetch-local/README.md | 4 +- packages/web/web-fetch-local/src/index.ts | 20 +++++ packages/web/web-fetch-local/src/provider.ts | 15 +++- .../web-fetch-local/tests/fetch-local.spec.ts | 90 +++++++++++++++++++ .../web/web-search-deepseek/src/provider.ts | 8 +- .../tests/deepseek.spec.ts | 6 ++ packages/web/web-search-exa/README.md | 2 +- packages/web/web-search-exa/src/provider.ts | 8 +- packages/web/web-search-exa/tests/exa.spec.ts | 7 ++ .../web/web-search-perplexity/src/provider.ts | 8 +- .../tests/perplexity.spec.ts | 6 ++ tsconfig.base.json | 2 - 14 files changed, 157 insertions(+), 21 deletions(-) diff --git a/packages/web/tool-web/src/index.ts b/packages/web/tool-web/src/index.ts index 072fc6018e..df8029466a 100644 --- a/packages/web/tool-web/src/index.ts +++ b/packages/web/tool-web/src/index.ts @@ -55,4 +55,3 @@ export function apply(ctx: Context, config: Config): void { if (config.search !== false) applyWebSearchTool(ctx) if (config.fetch !== false) applyWebFetchTool(ctx) } - diff --git a/packages/web/tool-web/tests/integration.spec.ts b/packages/web/tool-web/tests/integration.spec.ts index 18604190c6..50ae6c5624 100644 --- a/packages/web/tool-web/tests/integration.spec.ts +++ b/packages/web/tool-web/tests/integration.spec.ts @@ -96,4 +96,3 @@ describe('web_search integration over the real Exa provider', () => { expect(out.content.map(b => b.text).join('')).toContain('[Result](https://result.test)') }) }) - diff --git a/packages/web/web-fetch-local/README.md b/packages/web/web-fetch-local/README.md index fd9150e46f..58db557581 100644 --- a/packages/web/web-fetch-local/README.md +++ b/packages/web/web-fetch-local/README.md @@ -26,9 +26,11 @@ The provider owns **safe resource retrieval**: URL validation, HTTP transport, r | `maxBodyChars` | `100_000` | Maximum decoded body length in characters. | | `timeoutMs` | `30_000` | Default fetch timeout. | | `maxTimeoutMs` | `120_000` | Upper bound for a per-request timeout override. | -| `maxRedirects` | `5` | Maximum same-origin redirect hops. | +| `maxRedirects` | `5` | Maximum same-origin redirect hops (`0` follows none). | | `userAgent` | `deepseek-harness/…` | `User-Agent` header. | +The numeric limits are validated at plugin construction: every cap except `maxRedirects` must be a positive finite number, and `maxRedirects` must be a non-negative integer. An invalid value throws rather than silently constructing a provider with nonsensical limits. + ## Security note SSRF / private-network protection (blocking private, loopback, link-local, multicast, and otherwise non-public destinations, with DNS-resolve-then-validate and per-hop re-validation) is **deferred** — see the [web capability seam RFC](../../../docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md). Until it lands, this provider is an SSRF primitive and **must not be enabled** in a deployment that can reach sensitive internal network targets. diff --git a/packages/web/web-fetch-local/src/index.ts b/packages/web/web-fetch-local/src/index.ts index eb3f8e4143..7eb614f39a 100644 --- a/packages/web/web-fetch-local/src/index.ts +++ b/packages/web/web-fetch-local/src/index.ts @@ -60,10 +60,30 @@ export const Config: z = z.object({ /** The shape after schemastery applies its defaults to every field. */ type ResolvedConfig = Required +/** A resource limit (byte/char/length/timeout cap) must be a positive finite number. */ +function assertPositiveFinite(name: string, value: number): void { + if (!Number.isFinite(value) || value <= 0) { + throw new Error(`web-fetch-local: ${name} must be a positive finite number`) + } +} + +/** The redirect hop cap must be a non-negative integer (0 follows no redirects). */ +function assertNonNegativeInteger(name: string, value: number): void { + if (!Number.isInteger(value) || value < 0) { + throw new Error(`web-fetch-local: ${name} must be a non-negative integer`) + } +} + /** Register the local HTTP(S) fetch provider with `ctx.web`. */ export function apply(ctx: Context, config: Config): void { // schemastery (Config) has already filled every defaulted field. const resolved = config as ResolvedConfig + assertPositiveFinite('maxUrlLength', resolved.maxUrlLength) + assertPositiveFinite('maxResponseBytes', resolved.maxResponseBytes) + assertPositiveFinite('maxBodyChars', resolved.maxBodyChars) + assertPositiveFinite('timeoutMs', resolved.timeoutMs) + assertPositiveFinite('maxTimeoutMs', resolved.maxTimeoutMs) + assertNonNegativeInteger('maxRedirects', resolved.maxRedirects) const limits: LocalFetchLimits = { maxUrlLength: resolved.maxUrlLength, maxResponseBytes: resolved.maxResponseBytes, diff --git a/packages/web/web-fetch-local/src/provider.ts b/packages/web/web-fetch-local/src/provider.ts index 061eaf5e0c..29b183b710 100644 --- a/packages/web/web-fetch-local/src/provider.ts +++ b/packages/web/web-fetch-local/src/provider.ts @@ -81,11 +81,21 @@ export class LocalFetchProvider implements WebFetchProvider { /** Follow same-origin redirects up to the hop cap, then read the final response. */ private async followAndRead(initialUrl: string, controller: AbortController): Promise { let currentUrl = validateFetchUrl(initialUrl, this.limits.maxUrlLength) + let redirectsFollowed = 0 - for (let hop = 0; hop <= this.limits.maxRedirects; hop++) { + for (;;) { const response = await this.requestOnce(currentUrl, controller) if (isRedirectStatus(response.status)) { + // The redirect budget is enforced BEFORE this hop's target is resolved + // or origin-checked, so `maxRedirects: N` follows at most N redirects + // exactly: the (N+1)th redirect is refused as "exceeded" regardless of + // where it points (a same-origin/cross-origin distinction on a hop we + // are not allowed to follow would be the wrong diagnosis). + if (redirectsFollowed >= this.limits.maxRedirects) { + await response.body?.cancel() + throw new WebError(`exceeded the maximum of ${this.limits.maxRedirects} redirects`, 'WEB_REDIRECT_BLOCKED') + } const location = response.headers.get('location') if (location === null) { // A redirect status with no Location is not a usable resource. Cancel @@ -113,13 +123,12 @@ export class LocalFetchProvider implements WebFetchProvider { } await response.body?.cancel() currentUrl = validatedTarget + redirectsFollowed++ continue } return await this.readBody(response, currentUrl, controller.signal) } - - throw new WebError(`exceeded the maximum of ${this.limits.maxRedirects} redirects`, 'WEB_REDIRECT_BLOCKED') } private async requestOnce(url: URL, controller: AbortController): Promise { diff --git a/packages/web/web-fetch-local/tests/fetch-local.spec.ts b/packages/web/web-fetch-local/tests/fetch-local.spec.ts index 75a7cb1580..27ed991c08 100644 --- a/packages/web/web-fetch-local/tests/fetch-local.spec.ts +++ b/packages/web/web-fetch-local/tests/fetch-local.spec.ts @@ -203,6 +203,60 @@ describe('LocalFetchProvider redirects', () => { .rejects.toThrow(expect.objectContaining({ code: 'WEB_REDIRECT_BLOCKED' })) }) + it('follows exactly maxRedirects hops: a chain landing on the Nth redirect succeeds', async () => { + // maxRedirects: 2 → /?n=0 → /?n=1 → /?n=2(200). Exactly 2 redirects + 1 + // final = 3 requests; the cap is inclusive of the landing request. + let requests = 0 + handler = (req, res) => { + requests++ + const n = Number(new URL(req.url ?? '/', base).searchParams.get('n') ?? '0') + if (n >= 2) { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('landed') } + else { res.writeHead(302, { location: `/?n=${n + 1}` }); res.end() } + } + const result = await provider({ maxRedirects: 2 }).fetch({ url: `${base}/?n=0` }) + expect(result.body.content).toBe('landed') + expect(requests).toBe(3) + }) + + it('makes exactly maxRedirects+1 requests before blocking an over-long chain', async () => { + // maxRedirects: 2 on an infinite chain: requests at n=0,1,2 (the 3rd is the + // over-limit redirect, refused before its Location is followed) = 3 total. + let requests = 0 + handler = (req, res) => { + requests++ + const n = Number(new URL(req.url ?? '/', base).searchParams.get('n') ?? '0') + res.writeHead(302, { location: `/?n=${n + 1}` }) + res.end() + } + await expect(provider({ maxRedirects: 2 }).fetch({ url: `${base}/?n=0` })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_REDIRECT_BLOCKED', message: 'exceeded the maximum of 2 redirects' })) + expect(requests).toBe(3) + }) + + it('reports an over-limit redirect as "exceeded", not cross-origin, even when the over-limit hop points cross-origin', async () => { + // The redirect budget is checked BEFORE the over-limit hop's target is + // origin-validated, so the diagnosis is "exceeded", not "cross-origin". + handler = (req, res) => { + const n = Number(new URL(req.url ?? '/', base).searchParams.get('n') ?? '0') + const location = n === 0 ? '/?n=1' : 'https://example.com/' + res.writeHead(302, { location }) + res.end() + } + await expect(provider({ maxRedirects: 1 }).fetch({ url: `${base}/?n=0` })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_REDIRECT_BLOCKED', message: 'exceeded the maximum of 1 redirects' })) + }) + + it('maxRedirects: 0 follows no redirect but still fetches a direct 200', async () => { + handler = (req, res) => { + if (req.url === '/r') { res.writeHead(302, { location: '/done' }); res.end() } + else { res.writeHead(200, { 'content-type': 'text/plain' }); res.end('direct') } + } + await expect(provider({ maxRedirects: 0 }).fetch({ url: `${base}/r` })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_REDIRECT_BLOCKED' })) + const direct = await provider({ maxRedirects: 0 }).fetch({ url: `${base}/done` }) + expect(direct.body.content).toBe('direct') + }) + it('treats a redirect without a Location header as a provider error', async () => { handler = (_req, res) => { res.writeHead(302); res.end() } await expect(provider().fetch({ url: base })) @@ -331,4 +385,40 @@ describe('web-fetch-local plugin registration', () => { it('has no default export (namespace plugin export shape)', () => { expect('default' in fetchPlugin).toBe(false) }) + + it('rejects a non-positive resource limit at construction', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { fetchProvider: LOCAL_FETCH_PROVIDER_ID }) + await expect(ctx.plugin(fetchPlugin, { maxResponseBytes: -1 })) + .rejects.toThrow(/maxResponseBytes must be a positive finite number/) + }) + + it('rejects a zero timeout at construction', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { fetchProvider: LOCAL_FETCH_PROVIDER_ID }) + await expect(ctx.plugin(fetchPlugin, { timeoutMs: 0 })) + .rejects.toThrow(/timeoutMs must be a positive finite number/) + }) + + it('rejects a fractional redirect cap at construction', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { fetchProvider: LOCAL_FETCH_PROVIDER_ID }) + await expect(ctx.plugin(fetchPlugin, { maxRedirects: 1.5 })) + .rejects.toThrow(/maxRedirects must be a non-negative integer/) + }) + + it('rejects a negative redirect cap at construction', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { fetchProvider: LOCAL_FETCH_PROVIDER_ID }) + await expect(ctx.plugin(fetchPlugin, { maxRedirects: -1 })) + .rejects.toThrow(/maxRedirects must be a non-negative integer/) + }) + + it('accepts maxRedirects: 0 (follow no redirects) as valid config', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { fetchProvider: LOCAL_FETCH_PROVIDER_ID }) + const fiber = await ctx.plugin(fetchPlugin, { maxRedirects: 0 }) + expect(ctx.web.fetchStatus()).toEqual({ available: true, providerId: LOCAL_FETCH_PROVIDER_ID }) + await fiber.dispose() + }) }) diff --git a/packages/web/web-search-deepseek/src/provider.ts b/packages/web/web-search-deepseek/src/provider.ts index 5d02ad01ab..b637d52d11 100644 --- a/packages/web/web-search-deepseek/src/provider.ts +++ b/packages/web/web-search-deepseek/src/provider.ts @@ -200,14 +200,14 @@ export class DeepSeekSearchProvider implements WebSearchProvider { throw new WebError(message, 'WEB_PROVIDER_ERROR') } - let payload: AnthropicResponse try { - payload = await response.json() as AnthropicResponse + const payload = await response.json() as AnthropicResponse + return mapAnthropicResponse(request.query, payload) } catch (error: unknown) { if (isAbortError(error)) throw new WebError('DeepSeek search aborted', 'WEB_ABORTED', { cause: error }) - throw new WebError(`DeepSeek returned an unparseable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) + if (error instanceof WebError) throw error + throw new WebError(`DeepSeek returned an unprocessable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) } - return mapAnthropicResponse(request.query, payload) } } diff --git a/packages/web/web-search-deepseek/tests/deepseek.spec.ts b/packages/web/web-search-deepseek/tests/deepseek.spec.ts index ff6b37cfa2..496b7f6a3c 100644 --- a/packages/web/web-search-deepseek/tests/deepseek.spec.ts +++ b/packages/web/web-search-deepseek/tests/deepseek.spec.ts @@ -220,6 +220,12 @@ describe('DeepSeekSearchProvider error handling', () => { .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) }) + it('maps a well-formed body of the wrong shape to WEB_PROVIDER_ERROR, not a raw TypeError', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({ content: {} }, { status: 200 }))) + await expect(new DeepSeekSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + it('surfaces an abort during success-body parse as WEB_ABORTED', async () => { const body = { json: () => Promise.reject(new DOMException('aborted', 'AbortError')), ok: true, status: 200 } vi.stubGlobal('fetch', vi.fn(async () => body as unknown as Response)) diff --git a/packages/web/web-search-exa/README.md b/packages/web/web-search-exa/README.md index 61da605df7..6485d64c60 100644 --- a/packages/web/web-search-exa/README.md +++ b/packages/web/web-search-exa/README.md @@ -20,4 +20,4 @@ This is an **implementation** package: it registers a provider into `ctx.web`, i ## Mapping -Exa returns a flat `results[]` and no generated answer, so `content` is omitted. Each result maps to a `WebSearchSource`: `url` ← `url`, `title` ← `title`, `snippet` ← the first non-empty `highlights[]` entry (a result with no highlight has no portable snippet and is dropped), `publishedAt` ← `publishedDate`. The provider passes `maxResults` through as Exa's `numResults` for a cost/latency optimization; the final bound is enforced by the seam. Provider failures (HTTP errors, network failure, unparseable bodies) surface as `WebError` `WEB_PROVIDER_ERROR`; an aborted request surfaces as `WEB_ABORTED`. +Exa returns a flat `results[]` and no generated answer, so `content` is omitted. Each result maps to a `WebSearchSource`: `url` ← `url`, `title` ← `title`, `snippet` ← the first non-empty `highlights[]` entry (a result with no highlight has no portable snippet and is dropped), `publishedAt` ← `publishedDate`. The provider passes `maxResults` through as Exa's `numResults` for a cost/latency optimization; the final bound is enforced by the seam. Provider failures (HTTP errors, network failure, unparseable or wrong-shape bodies) surface as `WebError` `WEB_PROVIDER_ERROR`; an aborted request surfaces as `WEB_ABORTED`. diff --git a/packages/web/web-search-exa/src/provider.ts b/packages/web/web-search-exa/src/provider.ts index 70e14cbf25..3774bd5d58 100644 --- a/packages/web/web-search-exa/src/provider.ts +++ b/packages/web/web-search-exa/src/provider.ts @@ -118,14 +118,14 @@ export class ExaSearchProvider implements WebSearchProvider { throw new WebError(message, 'WEB_PROVIDER_ERROR') } - let payload: ExaSearchResponse try { - payload = await response.json() as ExaSearchResponse + const payload = await response.json() as ExaSearchResponse + return mapExaResponse(request.query, payload) } catch (error: unknown) { if (isAbortError(error)) throw new WebError('Exa search aborted', 'WEB_ABORTED', { cause: error }) - throw new WebError(`Exa returned an unparseable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) + if (error instanceof WebError) throw error + throw new WebError(`Exa returned an unprocessable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) } - return mapExaResponse(request.query, payload) } } diff --git a/packages/web/web-search-exa/tests/exa.spec.ts b/packages/web/web-search-exa/tests/exa.spec.ts index 403198401e..436e542d7c 100644 --- a/packages/web/web-search-exa/tests/exa.spec.ts +++ b/packages/web/web-search-exa/tests/exa.spec.ts @@ -60,6 +60,7 @@ describe('Exa result mapping', () => { it('tolerates a missing results array', () => { expect(mapExaResponse('q', {}).sources).toEqual([]) }) + }) describe('ExaSearchProvider status', () => { @@ -148,6 +149,12 @@ describe('ExaSearchProvider error handling', () => { .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) }) + it('maps a well-formed body of the wrong shape to WEB_PROVIDER_ERROR, not a raw TypeError', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({ results: {} }, { status: 200 }))) + await expect(new ExaSearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + it('surfaces an abort during success-body parse as WEB_ABORTED, not provider error', async () => { const body = { json: () => Promise.reject(new DOMException('aborted', 'AbortError')), ok: true, status: 200 } vi.stubGlobal('fetch', vi.fn(async () => body as unknown as Response)) diff --git a/packages/web/web-search-perplexity/src/provider.ts b/packages/web/web-search-perplexity/src/provider.ts index 69b4f794dd..809086026a 100644 --- a/packages/web/web-search-perplexity/src/provider.ts +++ b/packages/web/web-search-perplexity/src/provider.ts @@ -126,14 +126,14 @@ export class PerplexitySearchProvider implements WebSearchProvider { throw new WebError(message, 'WEB_PROVIDER_ERROR') } - let payload: PerplexityResponse try { - payload = await response.json() as PerplexityResponse + const payload = await response.json() as PerplexityResponse + return mapPerplexityResponse(request.query, payload) } catch (error: unknown) { if (isAbortError(error)) throw new WebError('Perplexity search aborted', 'WEB_ABORTED', { cause: error }) - throw new WebError(`Perplexity returned an unparseable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) + if (error instanceof WebError) throw error + throw new WebError(`Perplexity returned an unprocessable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) } - return mapPerplexityResponse(request.query, payload) } } diff --git a/packages/web/web-search-perplexity/tests/perplexity.spec.ts b/packages/web/web-search-perplexity/tests/perplexity.spec.ts index c1f76a63fb..d84c34a328 100644 --- a/packages/web/web-search-perplexity/tests/perplexity.spec.ts +++ b/packages/web/web-search-perplexity/tests/perplexity.spec.ts @@ -116,6 +116,12 @@ describe('PerplexitySearchProvider error handling', () => { .rejects.toThrow(expect.objectContaining({ message: 'bad request' })) }) + it('maps a well-formed body of the wrong shape to WEB_PROVIDER_ERROR, not a raw TypeError', async () => { + vi.stubGlobal('fetch', vi.fn(async () => jsonResponse({ search_results: null }, { status: 200 }))) + await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) + .rejects.toThrow(expect.objectContaining({ code: 'WEB_PROVIDER_ERROR' })) + }) + it('keeps a status-line message when the error body is not JSON', async () => { vi.stubGlobal('fetch', vi.fn(async () => new Response('upstream error', { status: 503 }))) await expect(new PerplexitySearchProvider(options).search({ query: 'q' })) diff --git a/tsconfig.base.json b/tsconfig.base.json index bc4f13bdd5..f0fdcfe197 100644 --- a/tsconfig.base.json +++ b/tsconfig.base.json @@ -34,8 +34,6 @@ "@cordisjs/plugin-timer": ["./vendor/timer/src"], "@cordisjs/plugin-hmr": ["./vendor/hmr/src"], "@cordisjs/plugin-logger-console": ["./vendor/logger-console/src"], - "@deepseek-ai/dsh-tool-web/search": ["./packages/web/tool-web/src/search.ts"], - "@deepseek-ai/dsh-tool-web/fetch": ["./packages/web/tool-web/src/fetch.ts"], // One wildcard maps every @deepseek-ai/dsh- to its source. Package // dir names are unique across groups, so first-on-disk-wins resolution is // unambiguous; adding a package under an existing group needs no edit From bb8f7799cef81909a1b595ae79714cef0e41c6a1 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Mon, 29 Jun 2026 17:39:52 +0800 Subject: [PATCH 12/32] fix: drop unreachable WebError rethrow in exa/perplexity search MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The `if (error instanceof WebError) throw error` guard is dead code in the exa and perplexity providers: their mappers (mapExaResponse / mapPerplexityResponse) never throw a WebError — a wrong-shape body throws a TypeError, which the catch correctly translates to WEB_PROVIDER_ERROR. The guard was added for symmetry with the deepseek provider, whose mapper DOES throw a WebError in strict mode (no web_search_tool_result block), so it keeps the rethrow. The unreachable lines tripped the per-file 100% coverage gate. --- packages/web/web-search-exa/src/provider.ts | 1 - packages/web/web-search-perplexity/src/provider.ts | 1 - 2 files changed, 2 deletions(-) diff --git a/packages/web/web-search-exa/src/provider.ts b/packages/web/web-search-exa/src/provider.ts index 3774bd5d58..cfb41cf77f 100644 --- a/packages/web/web-search-exa/src/provider.ts +++ b/packages/web/web-search-exa/src/provider.ts @@ -123,7 +123,6 @@ export class ExaSearchProvider implements WebSearchProvider { return mapExaResponse(request.query, payload) } catch (error: unknown) { if (isAbortError(error)) throw new WebError('Exa search aborted', 'WEB_ABORTED', { cause: error }) - if (error instanceof WebError) throw error throw new WebError(`Exa returned an unprocessable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) } } diff --git a/packages/web/web-search-perplexity/src/provider.ts b/packages/web/web-search-perplexity/src/provider.ts index 809086026a..5b5feb897b 100644 --- a/packages/web/web-search-perplexity/src/provider.ts +++ b/packages/web/web-search-perplexity/src/provider.ts @@ -131,7 +131,6 @@ export class PerplexitySearchProvider implements WebSearchProvider { return mapPerplexityResponse(request.query, payload) } catch (error: unknown) { if (isAbortError(error)) throw new WebError('Perplexity search aborted', 'WEB_ABORTED', { cause: error }) - if (error instanceof WebError) throw error throw new WebError(`Perplexity returned an unprocessable response body: ${String(error)}`, 'WEB_PROVIDER_ERROR', { cause: error }) } } From cf71c0b215f93903d6798cf0fd56559ee7e480cd Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Wed, 1 Jul 2026 17:08:53 +0800 Subject: [PATCH 13/32] fix: address web seam review findings --- docs/architecture.md | 4 ++- docs/core-data-structures/web.md | 4 +-- .../2026-06-24-web-capability-seam.md | 17 +++++++---- packages/README.md | 2 ++ packages/web/README.md | 1 + packages/web/web-search-deepseek/README.md | 4 +-- packages/web/web-search-deepseek/src/index.ts | 10 ++++--- .../web/web-search-deepseek/src/provider.ts | 6 ++++ .../tests/deepseek.spec.ts | 30 +++++++++++++++++++ 9 files changed, 64 insertions(+), 14 deletions(-) diff --git a/docs/architecture.md b/docs/architecture.md index d50dedf5b4..f57d453067 100644 --- a/docs/architecture.md +++ b/docs/architecture.md @@ -25,6 +25,8 @@ For a catalog of the **data structures** this architecture moves around — the │ @deepseek-ai/dsh-bash-local (bash impl) │ │ @deepseek-ai/dsh-tool-bash (bash tool schemas) │ │ @deepseek-ai/dsh-web-search-exa (web search impl) │ +│ @deepseek-ai/dsh-web-search-perplexity (web search impl) │ +│ @deepseek-ai/dsh-web-search-deepseek (web search impl) │ │ @deepseek-ai/dsh-web-fetch-local (web fetch impl) │ │ @deepseek-ai/dsh-tool-web (web tool schemas) │ │ @deepseek-ai/dsh-subagent-* (subagent providers) │ @@ -78,7 +80,7 @@ Swappable capabilities are split into **three packages** so each part evolves in The LLM seam has the same topology folded differently: `dsh-llm` carries the interface (`LlmAdapter`) AND the consumer surface (`ctx.llm.stream()`), with adapters as implementation packages — there the consumer is the loop itself, not a swappable schema surface. Use the full three-package split when the consumer is independently replaceable; keep interface + consumer together when they are one concern. Don't split preemptively: a capability with one conceivable implementation and one consumer stays one package until proven otherwise. -The web capability uses the same three-package split but folds two capabilities onto one seam: `dsh-web` owns the abstract `ctx.web` service, which is a provider REGISTRY (`registerSearchProvider`/`registerFetchProvider`, registration-order-independent selection, the `WebError` taxonomy) rather than a single backend. Providers register capabilities, not tools — `dsh-web-search-exa`, `dsh-web-search-perplexity`, and `dsh-web-fetch-local` each register into `ctx.web` the way an `LlmAdapter` registers into `ctx.llm`, so they are namespace plugins (`inject: ['web']`), not key-owning services. `dsh-tool-web` is the single consumer that owns the model-facing `web_search`/`web_fetch` schemas, prompt sections, and presentation; it reads only the aggregated `ctx.web.searchStatus()`/`fetchStatus()` and executes through `ctx.web.search()`/`fetch()`, so provider selection has one owner. Search and fetch are deliberately one seam (one thing to inject and configure, one selection policy, one abort/error vocabulary) despite sharing no request schema — see the [web capability seam RFC](rfc/implemented/architecture/2026-06-24-web-capability-seam.md). +The web capability uses the same three-package split but folds two capabilities onto one seam: `dsh-web` owns the abstract `ctx.web` service, which is a provider REGISTRY (`registerSearchProvider`/`registerFetchProvider`, registration-order-independent selection, the `WebError` taxonomy) rather than a single backend. Providers register capabilities, not tools — `dsh-web-search-exa`, `dsh-web-search-perplexity`, `dsh-web-search-deepseek`, and `dsh-web-fetch-local` each register into `ctx.web` the way an `LlmAdapter` registers into `ctx.llm`, so they are namespace plugins (`inject: ['web']`), not key-owning services. `dsh-tool-web` is the single consumer that owns the model-facing `web_search`/`web_fetch` schemas, prompt sections, and presentation; it reads only the aggregated `ctx.web.searchStatus()`/`fetchStatus()` and executes through `ctx.web.search()`/`fetch()`, so provider selection has one owner. Search and fetch are deliberately one seam (one thing to inject and configure, one selection policy, one abort/error vocabulary) despite sharing no request schema — see the [web capability seam RFC](rfc/implemented/architecture/2026-06-24-web-capability-seam.md). > **"Capability" — two unrelated meanings.** (1) The *seam pattern* above ("one plugin provides a capability, another needs it") is realized by plain Cordis **services + `inject`**: a provider registers a service (`ctx.bash`, declared in `interface Context`); a consumer declares `inject: ['bash']` and its fiber stays pending until the service exists, tearing down via HMR if it later vanishes. No extra library is needed. (2) `@cordisjs/plugin-capability` is a different axis entirely — a **permission/capability-security** service (named permissions with inheritance/dependency, tested against a session via `ctx.capability.test`). It is a candidate for the deferred permissions/sandbox work (the `tools/execute` veto seam), NOT a mechanism for swapping implementations. diff --git a/docs/core-data-structures/web.md b/docs/core-data-structures/web.md index f0ade276f7..43ed4e7aeb 100644 --- a/docs/core-data-structures/web.md +++ b/docs/core-data-structures/web.md @@ -1,6 +1,6 @@ # Web Access -The web access seam — a [capability seam](../rfc/implemented/architecture/2026-06-24-web-capability-seam.md) that spans **two capabilities** (search and fetch) on one `ctx.web` service, split across packages: interface ([dsh-web](../../packages/web/web), `ctx.web` + the provider registries), implementations ([dsh-web-search-exa](../../packages/web/web-search-exa), [dsh-web-search-perplexity](../../packages/web/web-search-perplexity), [dsh-web-fetch-local](../../packages/web/web-fetch-local)), and consumer ([dsh-tool-web](../../packages/web/tool-web), the `web_search`/`web_fetch` tool schemas). Web is **one optional capability**, not part of the agent-loop spine — so its vocabulary lives here, not in [core.md](core.md). A search-provider swap does not change how the model asks for a query, and a fetch-implementation swap does not change how the model asks for a URL. +The web access seam — a [capability seam](../rfc/implemented/architecture/2026-06-24-web-capability-seam.md) that spans **two capabilities** (search and fetch) on one `ctx.web` service, split across packages: interface ([dsh-web](../../packages/web/web), `ctx.web` + the provider registries), implementations ([dsh-web-search-exa](../../packages/web/web-search-exa), [dsh-web-search-perplexity](../../packages/web/web-search-perplexity), [dsh-web-search-deepseek](../../packages/web/web-search-deepseek), [dsh-web-fetch-local](../../packages/web/web-fetch-local)), and consumer ([dsh-tool-web](../../packages/web/tool-web), the `web_search`/`web_fetch` tool schemas). Web is **one optional capability**, not part of the agent-loop spine — so its vocabulary lives here, not in [core.md](core.md). A search-provider swap does not change how the model asks for a query, and a fetch-implementation swap does not change how the model asks for a URL. Source: [`packages/web/web/src/types.ts`](../../packages/web/web/src/types.ts) @@ -33,7 +33,7 @@ interface WebSearchResult { } ``` -`content` is optional provider-generated answer text (Exa returns none; Perplexity returns a generated answer). `sources[]` is the portable citation surface. A source always has a `url`; `title`/`snippet`/`publishedAt` are optional because not every provider returns them — Perplexity citations may be URL-only, and forcing adapters to invent the rest would make the seam lie. `dsh-tool-web` renders `title ?? hostname(url)`. +`content` is optional provider-generated answer text (Exa and DeepSeek return none; Perplexity returns a generated answer). `sources[]` is the portable citation surface. A source always has a `url`; `title`/`snippet`/`publishedAt` are optional because not every provider returns them — Perplexity citations may be URL-only, and forcing adapters to invent the rest would make the seam lie. `dsh-tool-web` renders `title ?? hostname(url)`. ```ts type-equiv interface WebSearchSource { diff --git a/docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md b/docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md index 3b9fb166d0..55ada9d576 100644 --- a/docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md +++ b/docs/rfc/implemented/architecture/2026-06-24-web-capability-seam.md @@ -17,7 +17,7 @@ There is also a provider-selection question. Existing `tool-bash` and `tool-fs` Introduce web access as a first-class capability seam following [the capability-seam RFC](../../implemented/architecture/2026-06-13-capability-seams.md): 1. `@deepseek-ai/dsh-web` (`packages/web/web`) owns `ctx.web`, provider registration, provider selection, shared request/result vocabulary, and web-specific errors. -2. Provider packages implement concrete backends and register capabilities with `ctx.web`, for example `@deepseek-ai/dsh-web-search-exa`, `@deepseek-ai/dsh-web-search-perplexity`, and `@deepseek-ai/dsh-web-fetch-local`. +2. Provider packages implement concrete backends and register capabilities with `ctx.web`, for example `@deepseek-ai/dsh-web-search-exa`, `@deepseek-ai/dsh-web-search-perplexity`, `@deepseek-ai/dsh-web-search-deepseek`, and `@deepseek-ai/dsh-web-fetch-local`. 3. `@deepseek-ai/dsh-tool-web` (`packages/web/tool-web`) owns the model-facing `web_search` and `web_fetch` tool schemas, prompt sections, argument validation, result formatting, and tool-owned presentation over `ctx.web`. Providers do not register tools. Providers register capabilities. `dsh-tool-web` is the only owner of model-facing names, descriptions, prompt guidance, JSON schemas, and presentation. @@ -46,6 +46,8 @@ The dependency direction mirrors bash and filesystem: consumer interface implementation <--depends on-- @deepseek-ai/dsh-web-search-perplexity implementation + <--depends on-- @deepseek-ai/dsh-web-search-deepseek + implementation <--depends on-- @deepseek-ai/dsh-web-fetch-local implementation ``` @@ -56,6 +58,7 @@ At runtime, provider packages register capabilities with `ctx.web`; `tool-web` r flowchart LR exa["@deepseek-ai/dsh-web-search-exa"] -->|registerSearchProvider| web["@deepseek-ai/dsh-web / ctx.web"] perplexity["@deepseek-ai/dsh-web-search-perplexity"] -->|registerSearchProvider| web + deepseek["@deepseek-ai/dsh-web-search-deepseek"] -->|registerSearchProvider| web fetchLocal["@deepseek-ai/dsh-web-fetch-local"] -->|registerFetchProvider| web toolWeb["@deepseek-ai/dsh-tool-web"] -->|searchStatus/fetchStatus| web toolWeb -->|ctx.tools.register| webSearch["tool: web_search"] @@ -152,6 +155,9 @@ The "single provider auto-selects" rule is for tests, demos, and simple deployme - id: web-search-perplexity name: '@deepseek-ai/dsh-web-search-perplexity' +- id: web-search-deepseek + name: '@deepseek-ai/dsh-web-search-deepseek' + - id: web-fetch-local name: '@deepseek-ai/dsh-web-fetch-local' @@ -326,10 +332,11 @@ Land the work in seam order: 1. Add `packages/web/web` with `ctx.web`, provider registration, provider status, capability status, selection, request/result/error types, and contract tests. 2. Add `packages/web/web-search-exa` with parser/unit tests and a self-skipping real-provider smoke test. 3. Add `packages/web/web-search-perplexity` with parser/unit tests and a self-skipping real-provider smoke test. -4. Add `packages/web/web-fetch-local` with local HTTP behavior tests. -5. Add `packages/web/tool-web` with config-driven tool registration, prompt sections, model formatting, presentation, and tool-registry tests. -6. Wire product app/example configs only after package behavior is stable, because tool schemas and prompt sections affect agent behavior and snapshots. -7. Update `docs/architecture.md`, `packages/README.md`, package READMEs, generated Cordis catalogs if new events/services are added, and maintenance scripts. +4. Add `packages/web/web-search-deepseek` with parser/unit tests and a self-skipping real-provider smoke test. +5. Add `packages/web/web-fetch-local` with local HTTP behavior tests. +6. Add `packages/web/tool-web` with config-driven tool registration, prompt sections, model formatting, presentation, and tool-registry tests. +7. Wire product app/example configs only after package behavior is stable, because tool schemas and prompt sections affect agent behavior and snapshots. +8. Update `docs/architecture.md`, `packages/README.md`, package READMEs, generated Cordis catalogs if new events/services are added, and maintenance scripts. ## Alternatives considered diff --git a/packages/README.md b/packages/README.md index f19cb4cf6d..5461f7b1a1 100644 --- a/packages/README.md +++ b/packages/README.md @@ -38,6 +38,7 @@ dsh-tool-bash ← dsh-bash, dsh-tools (bash tool schemas) dsh-web ← dsh-llm (abstract web seam; search/fetch registries, WebError) dsh-web-search-exa ← dsh-web (Exa WebSearchProvider) dsh-web-search-perplexity ← dsh-web (Perplexity WebSearchProvider) +dsh-web-search-deepseek ← dsh-web (DeepSeek native-web-search WebSearchProvider) dsh-web-fetch-local ← dsh-web (anonymous public HTTP(S) WebFetchProvider) dsh-tool-web ← dsh-web, dsh-tools, dsh-system-prompt (web tool schemas) dsh-llm-deepseek ← dsh-llm (DeepSeek adapter) @@ -80,6 +81,7 @@ The rule: **extension** plugins depend on interfaces, never on the concrete loop | `web/` | `web` | Abstract web seam (search/fetch provider registries + selection + vocabulary + `WebError`) | `ctx.web` | | `web-search-exa/` | `web` | Exa-backed `WebSearchProvider` | (registers on `ctx.web`) | | `web-search-perplexity/` | `web` | Perplexity-backed `WebSearchProvider` | (registers on `ctx.web`) | +| `web-search-deepseek/` | `web` | DeepSeek-backed `WebSearchProvider` using native `web_search` through the Anthropic-compatible API | (registers on `ctx.web`) | | `web-fetch-local/` | `web` | Anonymous public HTTP(S) `WebFetchProvider` | (registers on `ctx.web`) | | `tool-web/` | `web` | Model-facing `web_search`/`web_fetch` tool schemas | (registers on `ctx.tools`) | | `llm-deepseek/` | `llm` | DeepSeek API adapter (hand-rolled fetch/SSE) | (registers on `ctx.llm`) | diff --git a/packages/web/README.md b/packages/web/README.md index 0742d9c2cc..c2d34e615f 100644 --- a/packages/web/README.md +++ b/packages/web/README.md @@ -7,6 +7,7 @@ The web access capability seam: an abstract web interface, search/fetch provider | `web/` | Abstract web seam (search/fetch provider registries + selection + vocabulary + `WebError`) | `ctx.web` | | `web-search-exa/` | Exa-backed `WebSearchProvider` | (registers on `ctx.web`) | | `web-search-perplexity/` | Perplexity-backed `WebSearchProvider` | (registers on `ctx.web`) | +| `web-search-deepseek/` | DeepSeek-backed `WebSearchProvider` using native `web_search` through the Anthropic-compatible API | (registers on `ctx.web`) | | `web-fetch-local/` | Anonymous public HTTP(S) `WebFetchProvider` | (registers on `ctx.web`) | | `tool-web/` | Model-facing `web_search`/`web_fetch` tool schemas | (registers on `ctx.tools`) | diff --git a/packages/web/web-search-deepseek/README.md b/packages/web/web-search-deepseek/README.md index 5b56601bbb..41b000d26a 100644 --- a/packages/web/web-search-deepseek/README.md +++ b/packages/web/web-search-deepseek/README.md @@ -20,8 +20,8 @@ It reuses `$DEEPSEEK_API_KEY` (no new secret) but **not** `$DEEPSEEK_BASE_URL`: | `baseURL` | `https://api.deepseek.com/anthropic/v1` | Anthropic-compatible endpoint base; `/messages` is appended. Use a separate env var such as `$DEEPSEEK_SEARCH_BASE_URL` when overriding it; do not reuse `$DEEPSEEK_BASE_URL`, which belongs to the chat-completions LLM adapter. An unparseable value makes `status()` report `misconfigured`. | | `model` | `deepseek-v4-flash` | Anthropic-format model name. | | `apiVersion` | `2023-06-01` | `anthropic-version` header value. | -| `maxTokens` | `4096` | Upper bound on generated tokens for the Messages request. | -| `maxUses` | `5` | Maximum `web_search` server-tool uses per request. | +| `maxTokens` | `4096` | Positive-integer upper bound on generated tokens for the Messages request. | +| `maxUses` | `5` | Positive-integer maximum `web_search` server-tool uses per request. | ```yaml - id: web-search-deepseek diff --git a/packages/web/web-search-deepseek/src/index.ts b/packages/web/web-search-deepseek/src/index.ts index 9a04955dd9..c993fa8808 100644 --- a/packages/web/web-search-deepseek/src/index.ts +++ b/packages/web/web-search-deepseek/src/index.ts @@ -64,18 +64,20 @@ export const Config: z = z.object({ baseURL: z.string(), model: z.string(), apiVersion: z.string(), - maxTokens: z.natural(), - maxUses: z.natural(), + maxTokens: z.number().step(1).min(1), + maxUses: z.number().step(1).min(1), }) /** Register the DeepSeek search provider with `ctx.web`. */ export function apply(ctx: Context, config: Config): void { + const maxTokens = config.maxTokens ?? DEEPSEEK_DEFAULT_MAX_TOKENS + const maxUses = config.maxUses ?? DEEPSEEK_DEFAULT_MAX_USES ctx.web.registerSearchProvider(new DeepSeekSearchProvider({ apiKey: config.apiKey ?? process.env.DEEPSEEK_API_KEY ?? '', baseURL: config.baseURL ?? DEEPSEEK_DEFAULT_BASE_URL, model: config.model ?? DEEPSEEK_DEFAULT_MODEL, apiVersion: config.apiVersion ?? DEEPSEEK_DEFAULT_API_VERSION, - maxTokens: config.maxTokens ?? DEEPSEEK_DEFAULT_MAX_TOKENS, - maxUses: config.maxUses ?? DEEPSEEK_DEFAULT_MAX_USES, + maxTokens, + maxUses, })) } diff --git a/packages/web/web-search-deepseek/src/provider.ts b/packages/web/web-search-deepseek/src/provider.ts index b637d52d11..40566b4f75 100644 --- a/packages/web/web-search-deepseek/src/provider.ts +++ b/packages/web/web-search-deepseek/src/provider.ts @@ -147,6 +147,7 @@ export class DeepSeekSearchProvider implements WebSearchProvider { status(): WebProviderStatus { if (this.options.apiKey.length === 0) return { available: false, reason: 'missing-credential' } if (!URL.canParse(this.options.baseURL)) return { available: false, reason: 'misconfigured' } + if (!isPositiveInteger(this.options.maxTokens) || !isPositiveInteger(this.options.maxUses)) return { available: false, reason: 'misconfigured' } return { available: true } } @@ -215,3 +216,8 @@ export class DeepSeekSearchProvider implements WebSearchProvider { function isAbortError(error: unknown): boolean { return error instanceof DOMException && error.name === 'AbortError' } + +/** True for DeepSeek request limits that can be sent to the Messages API. */ +function isPositiveInteger(value: number): boolean { + return Number.isInteger(value) && value > 0 +} diff --git a/packages/web/web-search-deepseek/tests/deepseek.spec.ts b/packages/web/web-search-deepseek/tests/deepseek.spec.ts index 496b7f6a3c..ef688b7ad2 100644 --- a/packages/web/web-search-deepseek/tests/deepseek.spec.ts +++ b/packages/web/web-search-deepseek/tests/deepseek.spec.ts @@ -152,6 +152,15 @@ describe('DeepSeekSearchProvider status', () => { expect(new DeepSeekSearchProvider({ ...options, baseURL: 'not a url' }).status()) .toEqual({ available: false, reason: 'misconfigured' }) }) + + it('is misconfigured when request limits are not positive integers', () => { + expect(new DeepSeekSearchProvider({ ...options, maxTokens: 0 }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + expect(new DeepSeekSearchProvider({ ...options, maxUses: 0 }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + expect(new DeepSeekSearchProvider({ ...options, maxUses: 1.5 }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + }) }) describe('DeepSeekSearchProvider request mapping', () => { @@ -263,6 +272,27 @@ describe('web-search-deepseek plugin registration', () => { expect(ctx.web.searchStatus()).toEqual({ available: false, reason: 'configured-missing' }) }) + it('rejects maxTokens: 0 at plugin construction', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: DEEPSEEK_PROVIDER_ID }) + await expect(ctx.plugin(deepseekPlugin, { apiKey: 'ds-key', maxTokens: 0 })) + .rejects.toThrow(/maxTokens expected number >= 1/) + }) + + it('rejects maxUses: 0 at plugin construction', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: DEEPSEEK_PROVIDER_ID }) + await expect(ctx.plugin(deepseekPlugin, { apiKey: 'ds-key', maxUses: 0 })) + .rejects.toThrow(/maxUses expected number >= 1/) + }) + + it('rejects a fractional maxUses at plugin construction', async () => { + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: DEEPSEEK_PROVIDER_ID }) + await expect(ctx.plugin(deepseekPlugin, { apiKey: 'ds-key', maxUses: 1.5 })) + .rejects.toThrow(/maxUses expected number multiple of 1/) + }) + it('has no default export (namespace plugin export shape)', () => { expect('default' in deepseekPlugin).toBe(false) }) From 490fe002a12af2c00766f8bde3c80a74d1e88c4e Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Thu, 2 Jul 2026 23:41:02 +0800 Subject: [PATCH 14/32] test(acp): snapshot the fs-policy rejection card MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The fs-policy gate throws FS_NOT_OBSERVED when the model edits a file it never read; that rejection surfaces as a failed tool_call_update, but no snapshot pinned it — a regression that dropped or mis-rendered the failed card would pass every gate. Record a scenario that edits a seeded file without a preceding read: the edit is vetoed, the file stays unchanged on disk, and the transcript shows the pending edit card followed by a status:'failed' update carrying the policy error. --- examples/acp-agent/tests/acp.snapshot.ts | 1 + .../snapshots/fs-policy-reject/input.json | 7 + .../snapshots/fs-policy-reject/session.jsonl | 185 ++++++++++++++++++ .../fs-policy-reject/stdout.golden.jsonl | 136 +++++++++++++ .../fs-policy-reject/workspace/settings.txt | 1 + 5 files changed, 330 insertions(+) create mode 100644 examples/acp-agent/tests/snapshots/fs-policy-reject/input.json create mode 100644 examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl create mode 100644 examples/acp-agent/tests/snapshots/fs-policy-reject/stdout.golden.jsonl create mode 100644 examples/acp-agent/tests/snapshots/fs-policy-reject/workspace/settings.txt diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index 7d19f44bb5..3a27ad25d0 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -59,6 +59,7 @@ const SCENARIOS: Scenario[] = [ { name: 'fs-edit', hasModelTurn: true, recorded: true }, { name: 'fs-write-overwrite', hasModelTurn: true, recorded: true }, { name: 'fs-read-window', hasModelTurn: true, recorded: true }, + { name: 'fs-policy-reject', hasModelTurn: true, recorded: true }, { name: 'multi-turn', hasModelTurn: true, recorded: true }, { name: 'error-finish', hasModelTurn: true, recorded: false }, { name: 'cancel', hasModelTurn: true, recorded: false }, diff --git a/examples/acp-agent/tests/snapshots/fs-policy-reject/input.json b/examples/acp-agent/tests/snapshots/fs-policy-reject/input.json new file mode 100644 index 0000000000..c44d44c675 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/fs-policy-reject/input.json @@ -0,0 +1,7 @@ +{ + "steps": [ + { "op": "initialize" }, + { "op": "newSession" }, + { "op": "prompt", "text": "Do NOT use the read tool. Immediately use the edit tool to replace the literal text blue with green in settings.txt in the current directory. Do not read the file first. After the tool result, reply with exactly the single word DONE." } + ] +} diff --git a/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl new file mode 100644 index 0000000000..259de258ea --- /dev/null +++ b/examples/acp-agent/tests/snapshots/fs-policy-reject/session.jsonl @@ -0,0 +1,185 @@ +{"type":"session","version":0,"id":"0a0f03b5-ffbe-478d-af03-49d0dbb96355","createdAt":1783004466431,"cwd":"/tmp/acp-snap-cwd-N3q5XK"} +{"type":"turn/start","seq":0,"time":1783004466441,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783004466442,"data":{"content":[{"type":"text","text":"Do NOT use the read tool. 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(ToolCallPresentation / ToolResultPresentation / ToolTerminal) with a card-tagged discriminated union — the standing FIXME(tool-presentation). A tool declares one render intent per call/result and the ACP bridge switches on `card`: ToolCallView = generic | terminal | diff ToolResultView = generic | terminal The `diff` card is new: fs write/edit now emit an ACP {type:'diff'} content block (an editor's inline diff), which the old shapes could not express. The bridge also relativizes a file card's title against the session cwd (mirroring claude-agent-acp's toDisplayPath) while keeping locations/diff paths raw, and derives the no-capability fenced console fallback from a terminal result's output. read gains the window-in-title (`Read foo.txt (5 - 8)`) and an always-set location line, matching the reference adapter field-for-field. Migrates all three producer families (tool-fs, tool-bash, tool-todo) and the sole consumer (the ACP bridge) together — the source does not compile piecewise. Adds snapshot coverage for the terminal _meta path (a new capability-advertising scenario) and re-records the fs goldens to show the diff cards. Applied-hunk (result-time, context-line) diffs need a new result/event shape and are a follow-up. RFC: docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md --- AGENTS.md | 2 +- docs/cookbook/adding-a-tool.md | 22 +- docs/cordis-catalog/events-and-services.md | 2 +- docs/core-data-structures/core.md | 2 +- docs/core-data-structures/tools.md | 31 +- docs/rfc/README.md | 1 + .../2026-07-02-tool-render-intent-union.md | 70 ++++ ...2026-06-20-core-data-structures-catalog.md | 2 +- examples/acp-agent/tests/acp.snapshot.ts | 1 + .../snapshots/fs-edit/stdout.golden.jsonl | 4 +- .../fs-policy-reject/stdout.golden.jsonl | 2 +- .../fs-read-window/stdout.golden.jsonl | 2 +- .../snapshots/fs-read/stdout.golden.jsonl | 2 +- .../snapshots/fs-terminal-card/input.json | 7 + .../snapshots/fs-terminal-card/session.jsonl | 97 +++++ .../fs-terminal-card/stdout.golden.jsonl | 51 +++ .../fs-write-overwrite/stdout.golden.jsonl | 4 +- .../snapshots/fs-write/stdout.golden.jsonl | 2 +- packages/bash/tool-bash/README.md | 2 +- packages/bash/tool-bash/src/index.ts | 58 +-- packages/bash/tool-bash/tests/tools.spec.ts | 62 ++- packages/core/tools/README.md | 23 +- packages/core/tools/src/index.ts | 232 +++++++----- packages/core/tools/src/schema.ts | 14 +- packages/core/tools/tests/tools.spec.ts | 16 +- packages/fs/tool-fs/src/edit.ts | 16 +- packages/fs/tool-fs/src/read.ts | 25 +- packages/fs/tool-fs/src/write.ts | 18 +- packages/fs/tool-fs/tests/tools.spec.ts | 40 +- packages/todo/tool-todo/src/index.ts | 2 +- .../todo/tool-todo/tests/tool-todo.spec.ts | 2 +- packages/ui/acp/README.md | 18 +- packages/ui/acp/acp-feature-support.md | 4 +- packages/ui/acp/src/index.ts | 358 ++++++++++-------- packages/ui/acp/tests/stream-update.spec.ts | 271 +++++++++++-- 35 files changed, 1015 insertions(+), 450 deletions(-) create mode 100644 docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md create mode 100644 examples/acp-agent/tests/snapshots/fs-terminal-card/input.json create mode 100644 examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl create mode 100644 examples/acp-agent/tests/snapshots/fs-terminal-card/stdout.golden.jsonl diff --git a/AGENTS.md b/AGENTS.md index 4bdeb727fe..ec7a41f865 100644 --- a/AGENTS.md +++ b/AGENTS.md @@ -250,7 +250,7 @@ Dev/test/demo run **unbuilt** via tsx + the source `paths` map in the root `tsco - **Tests**: vitest, colocated under `packages///tests/*.spec.ts`. Every registry needs an HMR-safety test (dispose the contributing fiber, assert cleanup). **Excessive tests are welcome** — when in doubt, write the test; err on the side of covering edge cases, error paths, event ordering, and concurrency races even if they seem unlikely. Review findings get regression tests (see `packages/core/agent-loop/tests/review-fixes.spec.ts`). The same generosity applies to **real-API (with-key) e2e tests — inference is cheap here (we are DeepSeek), so do not ration them**: cover the agent's real flows (a real prompt that writes a file, multi-turn, tool use, cancellation) and run them frequently while developing, especially cheap **smoke tests** that boot the real example and check the world. A green mock/no-key suite proves the plumbing, not the product — the with-key smoke test is what catches "green units, broken product". See § Secrets / .env for the with-key policy and why self-skip is a CI accommodation, not a verdict that real-API tests are expensive. - **Prefer the REAL implementation over a mock/stand-in in tests.** When the genuine collaborator is available in the repo, wire it up instead of hand-rolling a fake — a test that registers an inline `defineTool({ name: 'bash', … })` to stand in for `dsh-tool-bash` proves the *bridge* moves bytes but not that the *shipping tool* renders the way the test asserts; the two drift and the test passes while the product is wrong. Mock only the genuinely expensive/non-deterministic boundary (the LLM adapter, the network, the clock) and keep everything downstream real: a bridge tool-call test runs the scripted mock MODEL but the REAL tool + REAL executor (e.g. `makeBridgeHarness({ withBash: true })` plugs `dsh-bash-local` + `dsh-tool-bash` and runs an actual `echo`), so it verifies the actual `presentCall`/`presentResult` an editor sees. This is the unit-test echo of "verify the world, not a synthetic stand-in" (see § Defensive patterns) — a fake you wrote will agree with whatever you assumed; the real thing won't. - **A change that affects the editor-facing transcript or end-to-end agent UX needs a snapshot test (or an explicit note in the PR why none applies).** The snapshot tier (`examples/*/tests/**/*.snapshot.ts`, `pnpm run test:snapshot`) boots the real example subprocess, replays a recorded session JSONL deterministically (keyless), and diffs the normalized stdout transcript + re-persisted session log against committed goldens — the full-transcript regression net that mock-level unit tests structurally cannot be (it is what catches a bridge-translation or loop-structure regression that leaves every unit green). When you change the ACP bridge, the agent loop's observable output, tool presentation, or anything an editor renders, add or update a scenario under `examples/acp-agent/tests/snapshots/` and re-record with `pnpm run test:snapshot:record`. Reviewing the golden diff is part of the review. The rule is scoped to transcript/UX-affecting changes — a pure internal refactor with no observable-output change does not need one, but say so. See [docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md](docs/rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md). -- **Designing a new subsystem includes designing its test infrastructure — END TO END, up front, as part of the same plan.** When you introduce a new capability seam, a new agent-lifecycle shape, or anything that produces an observable transcript (a new tool family, a subagent transport, a new UI surface), the plan must name how it will be covered at EVERY tier it touches — unit, real-API e2e, AND the full-transcript snapshot tier — and, critically, must check that the existing test infrastructure can actually express that coverage. Do not assume a snapshot/e2e harness built for one shape (e.g. a single top-level ACP session) transparently supports a new shape (e.g. a parent agent driving nested child agents): verify it, and if it cannot, the harness extension is in-scope work to plan and schedule, not a detail to discover mid-implementation. This rule exists because a real plan under-scoped exactly this: the subagent backends were planned with unit + e2e coverage but the snapshot tier turned out to assume one session per process (`dsh-llm-replay`'s single positional cursor, single-file harvest), so nested-agent snapshot coverage became unplanned net-new infrastructure (`TODO(subagent-snapshots)`). The cost of finding that during design is a paragraph; the cost of finding it mid-build is a re-plan. When the harness gap is large enough to be its own reviewable unit, schedule it as a dedicated stacked follow-up with its own RFC — but SAY SO in the originating plan, with the gap named, rather than letting it surface as a surprise. +- **A tool's editor/ACP representation is part of its design — decide it up front, not after.** When you add or change a model-facing tool, its ACP tool-call card is as much a deliverable as its `execute`: decide which render intent it declares via `presentCall`/`presentResult` (`generic` — a titled card with `kind`/`rawInput`/`content`/`locations`; `terminal` — a shell command; `diff` — a file create/modify rendered as an inline diff), and cover it with a snapshot test (the transcript tier is the only place card rendering is actually verified end-to-end — a unit test on the pure presenter proves the shape, not that an editor renders it). A tool that reads/writes files should almost always emit `locations` (for editor follow-along) and, for a mutation, a `diff` card; a tool that runs a command is a `terminal`. The presentation methods are pure functions of `args` (they run on live streaming AND session-log replay), so they must not do I/O or read session state — the bridge, not the tool, relativizes display paths and fills the session cwd. The reference implementations are `dsh-tool-fs` (generic/diff) and `dsh-tool-bash` (terminal); the vocabulary and the why are pinned in [docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md](docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md), and the step-by-step is in [docs/cookbook/adding-a-tool.md](docs/cookbook/adding-a-tool.md). When you introduce a new capability seam, a new agent-lifecycle shape, or anything that produces an observable transcript (a new tool family, a subagent transport, a new UI surface), the plan must name how it will be covered at EVERY tier it touches — unit, real-API e2e, AND the full-transcript snapshot tier — and, critically, must check that the existing test infrastructure can actually express that coverage. Do not assume a snapshot/e2e harness built for one shape (e.g. a single top-level ACP session) transparently supports a new shape (e.g. a parent agent driving nested child agents): verify it, and if it cannot, the harness extension is in-scope work to plan and schedule, not a detail to discover mid-implementation. This rule exists because a real plan under-scoped exactly this: the subagent backends were planned with unit + e2e coverage but the snapshot tier turned out to assume one session per process (`dsh-llm-replay`'s single positional cursor, single-file harvest), so nested-agent snapshot coverage became unplanned net-new infrastructure (`TODO(subagent-snapshots)`). The cost of finding that during design is a paragraph; the cost of finding it mid-build is a re-plan. When the harness gap is large enough to be its own reviewable unit, schedule it as a dedicated stacked follow-up with its own RFC — but SAY SO in the originating plan, with the gap named, rather than letting it surface as a surprise. ## Defensive patterns (hard-won) diff --git a/docs/cookbook/adding-a-tool.md b/docs/cookbook/adding-a-tool.md index 73706c84f1..c5e7931871 100644 --- a/docs/cookbook/adding-a-tool.md +++ b/docs/cookbook/adding-a-tool.md @@ -48,6 +48,26 @@ Follow tool-bash's background pattern: a `run_in_background` flag returns a task Prefer not to build policy into the tool. The seam is the `tools/execute` waterfall (veto or wrap — see the permission-gate example in [extension-cookbook.md](./extension-cookbook.md)), or a sandboxing implementation behind the tool's executor seam. +## How your tool renders in an editor (ACP presentation) + +Your tool's `execute` returns model-facing content; its **editor card** is a separate, optional concern you declare with two pure display methods on the `defineTool` options. Design this alongside `execute`, not after — an editor (Zed, over the ACP bridge) shows the card, and a tool with no presentation falls back to a bland generic card (title = tool name, raw args as input). + +Both methods return a **`card`-tagged render intent** — pick the card kind that matches what your tool does: + +- `presentCall(args)` → a `ToolCallView` (the PENDING card): + - `{ card: 'generic', title, kind?, rawInput?, content?, locations? }` — the default. Set `kind` for an icon (`read`/`search`/…); set `locations: [{ path, line? }]` for any file your tool touches so a capable editor follows along / jumps to it. + - `{ card: 'terminal', title, description?, cwd? }` — your call IS a shell command. `title` is the command, `description` renders above the terminal card. (tool-bash.) + - `{ card: 'diff', title, diffs, locations? }` — your call creates or modifies a file. `diffs: [{ path, oldText, newText }]` (`oldText: null` for a new file) renders as an inline diff card. (tool-fs `write`/`edit`.) +- `presentResult(args, { content, isError })` → a `ToolResultView` (the COMPLETED card): `{ card: 'generic', title?, content? }` or `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the run's captured output + exit — the bridge shows an exit pill and derives a fenced ` ```console ` fallback for editors without the terminal capability). + +Hard rules (they bite if broken): + +- **Purity.** These run on live streaming AND on session-log REPLAY, so they must be pure functions of `args` (+ the result) — NO I/O, NO reading session state, NO clock/random. A diff is derived from the args (`write` uses `oldText: null` because a call-time presenter has no prior file content); the BRIDGE, not the tool, fills the session cwd and relativizes a display-path title. If you find yourself wanting the file's old content or the working directory inside `presentCall`, stop — that belongs on the bridge or a future result-event shape, not the presenter. +- **UI-only formatting stays out of the model result.** A fenced ` ```console ` block, a diff, a relativized path — none of these may appear in what `execute` returns to the model; they live only in the presentation. (A `terminal` result view carries RAW `output`; the bridge adds the fences.) +- **`defineTool` soft-validates the display path.** A malformed/older logged arg shape makes the wrapper return `undefined` (a generic fallback) rather than throw — display must never crash a replay. + +The neutral vocabulary lives in `dsh-tools` (never import an ACP type into a tool); the ACP bridge maps each `card` to the wire. The design and the why are in [the render-intent-union RFC](../rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md); `dsh-tool-fs` (generic/diff) and `dsh-tool-bash` (terminal) are the reference implementations. + ## Tests every tool needs -Arg-validation rejections, result shaping for every outcome, the HMR disposal test, and — for tools with side effects — an integration spec that drives the tool through the agent loop with a scripted `MockAdapter` (`packages/core/agent-loop/tests/mock-adapter.ts`), asserting the `tool/call` / `tool/result` session events. +Arg-validation rejections, result shaping for every outcome, the HMR disposal test, and — for tools with side effects — an integration spec that drives the tool through the agent loop with a scripted `MockAdapter` (`packages/core/agent-loop/tests/mock-adapter.ts`), asserting the `tool/call` / `tool/result` session events. **If your tool has an editor card, also add:** a unit test on `presentCall`/`presentResult` asserting the exact view shape, AND — because a unit test proves the shape but not that an editor renders it — a **snapshot scenario** under `examples/acp-agent/tests/snapshots/` that drives the real tool through the ACP bridge and pins the rendered `tool_call` transcript (the card kind is only verified end-to-end there; see the [ACP snapshot-tests RFC](../rfc/implemented/testing/2026-06-19-acp-snapshot-tests.md)). A tool whose card is a `terminal` needs a scenario whose `input.json` sets `terminalOutput: true` to exercise the capable-client `_meta` path. diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index 22b6dc791b..bb7dcb58a4 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -547,7 +547,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:287`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:319`](../../packages/core/tools/src/index.ts) ## Inherited tier (cordis core + loader/hmr/timer) diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index 187a4b19a8..2395f180f7 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -11,7 +11,7 @@ Precisely, a data structure is **core** if either: 1. it flows through the agent-loop spine — the loop holds it, derives it, streams it, or logs it on every turn (a `Message`, a `StreamChunk`, a `SessionEvent`, the `Agent` handle itself), independent of which plugins are present; **or** 2. it is the single headline type a plugin author writes against a pipeline — `ToolDefinition` (what every tool *is*). -Everything else is documented on a **sub-page**, not here. The rule that draws the line: *the type you write, hold, or receive is core; the machinery that types it, renders it, or persists it is a sub-page detail.* So `ToolDefinition` is core, but the `SchemaSpec`/`InferArgs` DSL that types it, the `ToolCallPresentation` vocabulary that renders it, and the `SessionPersistence` seam that stores the event log are not — they live on the sub-pages below. +Everything else is documented on a **sub-page**, not here. The rule that draws the line: *the type you write, hold, or receive is core; the machinery that types it, renders it, or persists it is a sub-page detail.* So `ToolDefinition` is core, but the `SchemaSpec`/`InferArgs` DSL that types it, the `ToolCallView`/`ToolResultView` render-intent vocabulary that renders it, and the `SessionPersistence` seam that stores the event log are not — they live on the sub-pages below. | Sub-page | Owns | |---|---| diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index 1c1744c45c..42aa4e70fd 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -12,21 +12,23 @@ A `ToolSchema` (the model-facing fields) plus the `execute` function and optiona interface ToolDefinition extends ToolSchema { execute(args: unknown, exec: ToolExecution): Promise /** - * Optional: how to present the PENDING state of one call in a UI, derived - * from the call's `args` (parsed arguments, `unknown` — the tool validates/ - * narrows its own input). Returning `undefined` (or omitting the method) tells - * a UI to fall back to a generic presentation (title = tool name, raw args as - * input). Pure and side-effect-free: a UI may call it during live streaming - * AND a session-log replay, so it must depend only on `args`. + * Optional: how to present the PENDING state of one call in a UI, derived from + * the call's `args` (parsed arguments, `unknown` — the tool validates/narrows + * its own input). Returns a {@link ToolCallView} (a `card`-tagged render intent), + * or `undefined` (or omit the method) to fall back to a generic presentation + * (title = tool name, raw args as input). Pure and side-effect-free: a UI may + * call it during live streaming AND a session-log replay, so it must depend + * only on `args`. */ - presentCall?(args: unknown): ToolCallPresentation | undefined + presentCall?(args: unknown): ToolCallView | undefined /** * Optional: how to present the COMPLETED state, given the same `args` and the - * `result` (`execute`'s content + whether it errored). Returning `undefined` - * (or omitting the method) tells a UI to keep the pending title and render the - * raw result content. Pure and side-effect-free for the same replay reason. + * `result` (`execute`'s content + whether it errored). Returns a + * {@link ToolResultView}, or `undefined` (or omit the method) to keep the + * pending title and render the raw result content. Pure and side-effect-free + * for the same replay reason. */ - presentResult?(args: unknown, result: ToolResult): ToolResultPresentation | undefined + presentResult?(args: unknown, result: ToolResult): ToolResultView | undefined } ``` @@ -105,8 +107,11 @@ A waterfall listener receives `(exec, next)`: call `next()` to proceed (possibly ## Tool-presentation UI vocabulary -How a tool wants its call shown in a UI (an editor tool-call card, a CLI log line), provider-neutral so a tool describes itself without depending on any client protocol. `presentCall` returns a `ToolCallPresentation` (pending state: `title`, `kind`, `rawInput`, `content`, `locations` — `{ path, line? }[]` files the call reads/modifies, for editor follow-along — and optional `terminal`); `presentResult` returns a `ToolResultPresentation` (completed state: replacement `title`, reformatted `content`, terminal `output`/exit). `ToolCallKind` (`'read' | 'edit' | 'delete' | 'move' | 'search' | 'execute' | 'fetch' | 'other'`) picks an icon. A `ToolTerminal` asks a capable UI to render the call as a terminal card (cwd header, output, exit-status pill). +How a tool wants its call shown in a UI (an editor tool-call card, a CLI log line), provider-neutral so a tool describes itself without depending on any client protocol. `presentCall`/`presentResult` return a **`card`-tagged render intent** — a discriminated union a UI bridge switches on: -> These shapes carry a `FIXME(tool-presentation)` in source: they grew incrementally and the call-vs-result terminal split is muddy. Before more tools/UIs depend on them, they will be redesigned (a tagged union over card kinds) and pinned in an RFC, migrating `dsh-tool-bash` and the ACP bridge together. Treat the field-level shapes here as provisional; the source is authoritative. +- `ToolCallView` (pending): `{ card: 'generic', title, kind?, rawInput?, content?, locations? }` (the default card; `locations` is `{ path, line? }[]` files the call reads/modifies, for editor follow-along), `{ card: 'terminal', title, description?, cwd? }` (a shell command → a terminal card), or `{ card: 'diff', title, diffs, locations? }` (a file create/modify → an inline diff card; `diffs` is `{ path, oldText, newText }[]`, `oldText: null` for a new file). +- `ToolResultView` (completed): `{ card: 'generic', title?, content? }` or `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit; a capable UI shows an exit-status pill, an incapable one gets a fenced ` ```console ` fallback the bridge derives from `output`). + +`ToolCallKind` (`'read' | 'edit' | 'delete' | 'move' | 'search' | 'execute' | 'fetch' | 'other'`) picks an icon on a generic card. `FileLocation` (`{ path, line? }`) and `FileDiff` (`{ path, oldText, newText }`) are the shared file-card vocabulary. The design is pinned in [the render-intent-union RFC](../rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md); the ACP bridge maps a `diff` card to a `{ type: 'diff' }` content block, a `terminal` card to the `_meta` terminal convention, and relativizes a file card's title against the session cwd. The full presentation field docs live in [`packages/core/tools/src/index.ts`](../../packages/core/tools/src/index.ts). The bash tool's own schemas (`bash`/`bash_output`/`bash_kill`) and the executor they drive are on [bash.md](bash.md). diff --git a/docs/rfc/README.md b/docs/rfc/README.md index 59516c24c5..fbefdd3727 100644 --- a/docs/rfc/README.md +++ b/docs/rfc/README.md @@ -125,6 +125,7 @@ Do NOT write one for a mechanical or local choice (a variable name, a one-file r | [Extract example apps into packages](implemented/architecture/2026-06-20-extract-example-app-packages.md) | 2026-06-20 | | [Make `dsh-fs-policy` an event-gate plugin, not a method interface](implemented/architecture/2026-06-26-file-context-as-event-gate.md) | 2026-06-26 | | [Resolve filesystem paths against the caller's session cwd](implemented/architecture/2026-07-02-fs-per-session-cwd.md) | 2026-07-02 | +| [Tagged render-intent union for tool-call presentation](implemented/architecture/2026-07-02-tool-render-intent-union.md) | 2026-07-02 | ### Process diff --git a/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md b/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md new file mode 100644 index 0000000000..1ad5e84e33 --- /dev/null +++ b/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md @@ -0,0 +1,70 @@ +# RFC: Tagged render-intent union for tool-call presentation + +Status: implemented + +## Problem + +A tool declares how its calls render in a UI (an editor's tool-call card) through two callbacks, `presentCall`/`presentResult` on `ToolDefinition`, returning `ToolCallPresentation` / `ToolResultPresentation` with an optional `ToolTerminal` sub-shape. These grew incrementally into a **bag of optional fields**: `title`, `kind`, `rawInput`, `content`, `locations`, `terminal` on the call; `title`, `content`, `terminal` on the result; `cwd`/`output`/`exitCode`/`signal` on `ToolTerminal`. The split of responsibility is muddy: + +- The call-side and result-side `terminal` fields overlap, and the bridge reconciles a `content` block AND a `terminal` block AND `rawInput` per call, stitching them together with ad-hoc conditionals. +- Which combinations are *valid* is unwritten: a `terminal` call that also sets `content` means "description above the card"; a generic call that sets `terminal` is meaningless but representable. The type permits nonsense. +- There is no way to express the one file-tool affordance an editor most wants — a **diff card** (`{path, oldText, newText}`, which Zed renders as an inline diff / new-file preview). `ToolCallPresentation.content` is the *LLM* `ContentBlock[]` vocabulary (text/image), so a tool literally cannot ask for a diff. + +The existing `FIXME(tool-presentation)` in `packages/core/tools/src/index.ts` named the fix: "redesign the type so a tool declares its render INTENT once (e.g. a tagged union over card kinds) rather than a bag of optional fields the bridge stitches together." The rejected RFC [Collapse tool-owned UI presentation](../../rejected/simplification/2026-06-20-generic-tool-rendering.md) deferred it explicitly: rich rendering "should return later as a tagged render-intent union after there are at least two real tools and two real consumers to validate the vocabulary." That bar is now met — two producer families (`dsh-tool-bash`, `dsh-tool-fs`) and two consumers (the ACP bridge live path + the snapshot-golden replay path). + +## Decision + +Replace the optional-field bag with a **`card`-tagged discriminated union**. A tool declares one render intent per call/result; the bridge switches on the tag. + +```ts ignore-check +type FileLocation = { path: string; line?: number } +type FileDiff = { path: string; oldText: string | null; newText: string } // oldText null ⇒ new file + +// presentCall → ToolCallView +type ToolCallView = GenericCallView | TerminalCallView | DiffCallView +interface GenericCallView { card: 'generic'; title: string; kind?: ToolCallKind; rawInput?: unknown; content?: ContentBlock[]; locations?: FileLocation[] } +interface TerminalCallView { card: 'terminal'; title: string; description?: string; cwd?: string } +interface DiffCallView { card: 'diff'; title: string; diffs: FileDiff[]; locations?: FileLocation[] } + +// presentResult → ToolResultView +type ToolResultView = GenericResultView | TerminalResultView +interface GenericResultView { card: 'generic'; title?: string; content?: ContentBlock[] } +interface TerminalResultView { card: 'terminal'; title?: string; output?: string; exitCode?: number; signal?: string } +``` + +`card` is **required** on every variant — a real discriminant, not an optional default. The bridge does `switch (view.card) { case 'generic': … case 'terminal': … case 'diff': … default: assertNever(view) }`. The union is **closed** (per the [switch-exhaustiveness convention](../../../../AGENTS.md)): a fourth render intent (a table, a chart) needs new bridge code to render it anyway, so a plugin-added variant that the bridge silently drops would be worse than a compile error. Adding a variant breaks compilation at the bridge switch — exactly the signal we want. + +### Why a tagged union beats the field-bag + +- **Invalid states become unrepresentable.** A generic card cannot carry terminal output; a terminal card cannot carry a diff. The old bag permitted all of these. +- **The bridge switches instead of stitching.** One arm per card kind, each producing exactly the wire shape that card needs, rather than reconciling five optional fields whose interactions are undocumented. +- **`diff` is a first-class intent.** `dsh-tool-fs` write/edit declare `card:'diff'`; the bridge emits an ACP `{type:'diff', path, oldText, newText}` `ToolCallContent` (already in the SDK's `ToolCallContent` union, previously unused by the bridge). This is the affordance the redesign unlocks. + +### Producer mapping + +- `dsh-tool-fs` read → `generic` (`kind:'read'`, a follow-along `location`); write → `diff` (`oldText:null`); edit → `diff` (`oldText:old_string || null`, `newText:new_string ?? ''`). This mirrors `claude-agent-acp`'s `toolInfoFromToolUse` Read/Write/Edit arms field-for-field. +- `dsh-tool-bash` foreground → `terminal` call + `terminal` result; `run_in_background` and `bash_output`/`bash_kill` → `generic`. +- `dsh-tool-todo` → `generic`. + +### Terminal fallback ownership + +`TerminalResultView` carries only `output`/`exitCode`/`signal`. A UI without the terminal capability needs a fenced ` ```console ` text fallback; that derivation moves to the **bridge** (it wraps `output` in a fenced block on the no-capability path), rather than the tool double-encoding it. This keeps the bash tool's result a single structured shape and preserves the existing capability-gated behavior byte-for-byte. + +### Purity preserved + +`presentCall`/`presentResult` remain pure functions of `args` (+ the result for `presentResult`) — they run on live streaming AND session-log replay, so they must be replay-deterministic. Every view is derived from args alone: write's diff is new-file style (`oldText:null`) because the tool has no old content at call time; edit's diff is `old_string`→`new_string`. + +## Relative-path display titles + +`claude-agent-acp` relativizes a file card's title path against the session cwd (`toDisplayPath`) — `Read src/foo.ts`, not `/abs/proj/src/foo.ts` — while keeping `locations[]`/`diff.path` **raw** (the editor opens the real path). Our `presentCall` is pure/args-only and cannot see the session cwd, so this relativization happens at the **bridge**, which already threads the session cwd into tool-call rendering (the same cwd it uses to resolve a terminal card's header). The bridge relativizes the title only, by an exact structured replace of the known `locations[0].path`/`diffs[0].path` substring — generic over the file-card kinds, never special-casing tool names. + +## Non-goals + +- **Applied-hunk diffs.** `claude-agent-acp` additionally rewrites Write/Edit diffs at *result* time with real structured-patch hunks (via a PostToolUse hook: `toolUpdateFromDiffToolResponse`). Our diffs are call-time and args-derived (the whole `old_string`→`new_string`, no surrounding context lines), because `presentResult` sees only `{content, isError}` and `FsEditOutcome` carries a replacement count/version, not hunk text. Real hunks would need a new result/event shape carrying the patch — a follow-up, not this change. This is the one remaining representation difference from `claude-agent-acp`, and it is architectural (needs a new event), not cosmetic. +- **Live incremental `terminal_output_delta` streaming** and **command classification** — the terminal-rendering RFC's own deferred follow-ups, untouched here. + +## Related + +- Supersedes the deferral in [Collapse tool-owned UI presentation](../../rejected/simplification/2026-06-20-generic-tool-rendering.md) (rejected — "wait for two real tools and two real consumers, then a tagged render-intent union"). That bar is now met; this is that union. +- Folds `ToolTerminal` into the `terminal` views described by [ACP terminal and tool-call rendering](../feature/2026-06-18-acp-terminal-and-tool-rendering.md) (the `_meta` terminal-card convention and capability gate are unchanged; only the harness-side presentation type changes). +- The ACP SDK's `Diff` / `ToolCallContent` types back the new `diff` card. diff --git a/docs/rfc/implemented/process/2026-06-20-core-data-structures-catalog.md b/docs/rfc/implemented/process/2026-06-20-core-data-structures-catalog.md index d589f6136b..d578d8091c 100644 --- a/docs/rfc/implemented/process/2026-06-20-core-data-structures-catalog.md +++ b/docs/rfc/implemented/process/2026-06-20-core-data-structures-catalog.md @@ -23,7 +23,7 @@ The rule that settled the remaining cases: ***the type you write, hold, or recei - A data structure is **core** if it flows through the agent-loop spine — the loop holds, derives, streams, or logs it on every turn regardless of which plugins load (`Message`, `StreamChunk`, `SessionEvent`, the `Agent` handle) — **or** it is the single headline type a plugin author writes against a pipeline (`ToolDefinition`). - `ToolDefinition` is core (it is what every tool author writes) **even though the loop never holds one** — authoring-importance overrides the strict flows-through-spine rule for this one headline type. But its typing machinery — the `SchemaSpec`/`InferArgs` DSL — is a sub-page detail (you write a `ToolDefinition`; the type-level machinery that types it you do not). That is the spine-vs-seam line made sharp. - `ToolSchema` is core (it is a field of `GenerateOptions`, the model request that flows through every step) even though it is conceptually part of the tool pipeline — *flows through the spine* wins over *conceptual home* when they conflict. -- The tool-presentation vocabulary (`ToolCallPresentation`, …, carrying a `FIXME(tool-presentation)` redesign marker), the `SessionPersistence` durability seam, and bash vocabulary are sub-pages. +- The tool-presentation vocabulary (`ToolCallView`/`ToolResultView`, …), the `SessionPersistence` durability seam, and bash vocabulary are sub-pages. `core.md` is a **self-contained spine doc**: it states the exact type definition of each spine structure with minimal prose and links to sub-pages for the per-seam detail. The sub-pages are `llm-streaming.md`, `session.md`, `persistence.md` (split from session along the in-memory-model vs. durability-seam line), `tools.md`, and `bash.md`. diff --git a/examples/acp-agent/tests/acp.snapshot.ts b/examples/acp-agent/tests/acp.snapshot.ts index 3a27ad25d0..cd14e8dc2e 100644 --- a/examples/acp-agent/tests/acp.snapshot.ts +++ b/examples/acp-agent/tests/acp.snapshot.ts @@ -52,6 +52,7 @@ const SCENARIOS: Scenario[] = [ { name: 'reject-extra-dirs', hasModelTurn: false, recorded: false }, { name: 'text-turn', hasModelTurn: true, recorded: true }, { name: 'tool-call-turn', hasModelTurn: true, recorded: true }, + { name: 'fs-terminal-card', hasModelTurn: true, recorded: true }, { name: 'todo-plan', hasModelTurn: true, recorded: true }, { name: 'workspace-edit', hasModelTurn: true, recorded: true }, { name: 'fs-read', hasModelTurn: true, recorded: true }, diff --git a/examples/acp-agent/tests/snapshots/fs-edit/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/fs-edit/stdout.golden.jsonl index 8f5d02632d..f7601d52e3 100644 --- a/examples/acp-agent/tests/snapshots/fs-edit/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-edit/stdout.golden.jsonl @@ -14,7 +14,7 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" its"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" contents"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_Qm1fHx9Xd5wOv1WZvgmj2865","title":"Read config.txt","kind":"read","status":"in_progress","locations":[{"path":"config.txt"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_Qm1fHx9Xd5wOv1WZvgmj2865","title":"Read config.txt","kind":"read","status":"in_progress","locations":[{"path":"config.txt","line":1}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_Qm1fHx9Xd5wOv1WZvgmj2865","status":"completed","content":[{"type":"content","content":{"type":"text","text":"{{cwd}}/config.txt\nfile\n\n1: mode=DEBUG\n2: level=info\n\n(End of file - total 2 lines)\n"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" file"}}}} @@ -50,7 +50,7 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" edit"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" tool"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_OwPhDMqS06VEbY7rO4Rv1204","title":"Edit config.txt","kind":"edit","status":"in_progress","rawInput":"\"DEBUG\" → \"RELEASE\"","locations":[{"path":"config.txt"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_OwPhDMqS06VEbY7rO4Rv1204","title":"Edit config.txt","kind":"edit","status":"in_progress","locations":[{"path":"config.txt"}],"content":[{"type":"diff","path":"config.txt","oldText":"DEBUG","newText":"RELEASE"}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_OwPhDMqS06VEbY7rO4Rv1204","status":"completed","content":[{"type":"content","content":{"type":"text","text":"The file {{cwd}}/config.txt has been updated successfully."}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" edit"}}}} diff --git a/examples/acp-agent/tests/snapshots/fs-policy-reject/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/fs-policy-reject/stdout.golden.jsonl index 69c1bbd1c0..0de98c4a44 100644 --- a/examples/acp-agent/tests/snapshots/fs-policy-reject/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-policy-reject/stdout.golden.jsonl @@ -37,7 +37,7 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" D"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_3fuirRMnjFj7LWlJL1eU3690","title":"Edit settings.txt","kind":"edit","status":"in_progress","rawInput":"\"blue\" → \"green\"","locations":[{"path":"settings.txt"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_3fuirRMnjFj7LWlJL1eU3690","title":"Edit settings.txt","kind":"edit","status":"in_progress","locations":[{"path":"settings.txt"}],"content":[{"type":"diff","path":"settings.txt","oldText":"blue","newText":"green"}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_3fuirRMnjFj7LWlJL1eU3690","status":"failed","content":[{"type":"content","content":{"type":"text","text":"Error: edit requires reading \"{{cwd}}/settings.txt\" first"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" edit"}}}} diff --git a/examples/acp-agent/tests/snapshots/fs-read-window/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/fs-read-window/stdout.golden.jsonl index 577f8adaa6..8b40d5fba5 100644 --- a/examples/acp-agent/tests/snapshots/fs-read-window/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-read-window/stdout.golden.jsonl @@ -24,7 +24,7 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" "}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"4"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_0htYNlUzC9b8aH2gHN8h2706","title":"Read big.txt","kind":"read","status":"in_progress","rawInput":"offset 5, limit 4","locations":[{"path":"big.txt","line":5}]}}} 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Then reply with the single word DONE and stop." } + ] +} diff --git a/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl new file mode 100644 index 0000000000..7c0652d478 --- /dev/null +++ b/examples/acp-agent/tests/snapshots/fs-terminal-card/session.jsonl @@ -0,0 +1,97 @@ +{"type":"session","version":0,"id":"2a35d875-5d43-4d39-a995-a378d341643d","createdAt":1783012637644,"cwd":"/tmp/acp-snap-cwd-o9lBfw"} +{"type":"turn/start","seq":0,"time":1783012637647,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} +{"type":"user/message","seq":1,"time":1783012637647,"data":{"content":[{"type":"text","text":"Use the bash tool to run exactly: echo TERMINAL_OK. 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+{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"D"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_message_chunk","content":{"type":"text","text":"ONE"}}}} +{"jsonrpc":"2.0","id":3,"result":{"stopReason":"end_turn"}} diff --git a/examples/acp-agent/tests/snapshots/fs-write-overwrite/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/fs-write-overwrite/stdout.golden.jsonl index 1d234c2dd4..b595a90083 100644 --- a/examples/acp-agent/tests/snapshots/fs-write-overwrite/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write-overwrite/stdout.golden.jsonl @@ -28,7 +28,7 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"D"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_GtqlR9riew6wgdQzLbbu6019","title":"Read data.txt","kind":"read","status":"in_progress","locations":[{"path":"data.txt"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_GtqlR9riew6wgdQzLbbu6019","title":"Read data.txt","kind":"read","status":"in_progress","locations":[{"path":"data.txt","line":1}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_GtqlR9riew6wgdQzLbbu6019","status":"completed","content":[{"type":"content","content":{"type":"text","text":"{{cwd}}/data.txt\nfile\n\n1: original contents\n\n(End of file - total 1 lines)\n"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Now"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}} @@ -50,7 +50,7 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"re"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"placed"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_CkV4RzKjuERcr4NdJbtY3226","title":"Write data.txt","kind":"edit","status":"in_progress","locations":[{"path":"data.txt"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_CkV4RzKjuERcr4NdJbtY3226","title":"Write data.txt","kind":"edit","status":"in_progress","locations":[{"path":"data.txt"}],"content":[{"type":"diff","path":"data.txt","oldText":null,"newText":"replaced"}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_CkV4RzKjuERcr4NdJbtY3226","status":"completed","content":[{"type":"content","content":{"type":"text","text":"{{cwd}}/data.txt\nfile\n\nUpdated file\n"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"Done"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl index daa26245bb..eac3a6ea99 100644 --- a/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl @@ -31,7 +31,7 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"D"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_OxAUP9dIc6I1B6Coo5vs8586","title":"Write notes.txt","kind":"edit","status":"in_progress","locations":[{"path":"notes.txt"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_OxAUP9dIc6I1B6Coo5vs8586","title":"Write notes.txt","kind":"edit","status":"in_progress","locations":[{"path":"notes.txt"}],"content":[{"type":"diff","path":"notes.txt","oldText":null,"newText":"hello world"}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_OxAUP9dIc6I1B6Coo5vs8586","status":"completed","content":[{"type":"content","content":{"type":"text","text":"{{cwd}}/notes.txt\nfile\n\nCreated file\n"}}]}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" file"}}}} diff --git a/packages/bash/tool-bash/README.md b/packages/bash/tool-bash/README.md index 656a22cdb1..29cec70970 100644 --- a/packages/bash/tool-bash/README.md +++ b/packages/bash/tool-bash/README.md @@ -34,7 +34,7 @@ The owning agent's session token (`session.header.id`) is stamped onto the task ## UI presentation -These tools own how their calls render in a UI (an editor's tool-call card) via the `dsh-tools` `presentCall`/`presentResult` seam — a UI never special-cases tool names. For `bash`: the **title** is the exact `command` ("ls -la src") and `kind` is `execute` (terminal/run treatment), matching the reference ACP adapters (claude-agent-acp, codex-acp), which both use the bare command as an execute tool's title. The command is ALSO the **rawInput** for non-terminal UIs that render it (an execute-kind card hides rawInput — Zed shows it only for non-terminal tools — so the command must BE the title to be seen). The model-written `description` rides as a **content** text block shown ABOVE the card. (claude-agent-acp DROPS the description in terminal mode and shows only the card; surfacing it as a content block is a deliberate divergence — we keep the human summary visible alongside the card.) The completed output is wrapped in a fenced ` ```console ` block as the no-terminal-capability fallback — a UI-only affordance, so the model-facing result text stays unfenced. A FOREGROUND `bash` run also flags itself as a **terminal** (the neutral `terminal` field: `presentCall` sets a `cwd` from the model `workdir` when given — absolute as-is, relative for the UI bridge to resolve against the session cwd — else leaves it for the bridge to fill from the session cwd; `presentResult` carries the raw output plus the parsed `exitCode`/`signal`) so a capable client (Zed) renders a terminal card with an exit-status pill instead of the text block — see `packages/ui/acp` ("Terminal card"). A `run_in_background` call is NOT a terminal (it returns a task id immediately and never streams a terminal — poll with `bash_output`), and an `isError` result (spawn failure / abort) carries no exit pill (there is no real process exit); both render as the ordinary execute card / fenced text. `bash_output`/`bash_kill` present a task-scoped title ("Read output from background task bash-3" / "Kill background task bash-3") with the task id as rawInput. These methods are pure/display-only (they also run on `session/load` replay), and a malformed/older logged arg shape falls back to a generic presentation rather than throwing. See `packages/core/tools` ("Tool-owned UI presentation") and `packages/ui/acp` ("Terminal card" / "Tool-call presentation"). +These tools own how their calls render in a UI (an editor's tool-call card) via the `dsh-tools` `presentCall`/`presentResult` seam, each returning a `card`-tagged render intent — a UI never special-cases tool names. A FOREGROUND `bash` run declares a **terminal card**: `presentCall` returns `{ card: 'terminal', title, description?, cwd? }` — the **title** is the exact `command` ("ls -la src"), the model-written `description` rides along (rendered ABOVE the card), and `cwd` comes from the model `workdir` when given (absolute as-is, relative for the UI bridge to resolve against the session cwd; else left for the bridge to fill from the session cwd) — and `presentResult` returns `{ card: 'terminal', title?, output?, exitCode?, signal? }` carrying the raw output plus the parsed `exitCode`/`signal`, so a capable client (Zed) renders a terminal card with an exit-status pill. The result carries the raw `output`; the bridge DERIVES the ` ```console ` fenced fallback for a no-terminal-capability UI (the tool no longer encodes the fences itself), so the model-facing result text stays unfenced. A `run_in_background` call is NOT a terminal (it returns a task id immediately and never streams a terminal — poll with `bash_output`) and instead returns a **generic card** (`{ card: 'generic', title, kind: 'execute', rawInput: command, content: [description] }`); an `isError` result (spawn failure / abort) likewise returns a `generic` result view with no exit pill (there is no real process exit). `bash_output`/`bash_kill` return a `generic` card with a task-scoped title ("Read output from background task bash-3" / "Kill background task bash-3") and the task id as rawInput. These methods are pure/display-only (they also run on `session/load` replay), and a malformed/older logged arg shape falls back to a generic presentation rather than throwing. See `packages/core/tools` ("Tool-owned UI presentation") and `packages/ui/acp` ("Terminal card" / "Tool-call presentation"). ## Background completion notices diff --git a/packages/bash/tool-bash/src/index.ts b/packages/bash/tool-bash/src/index.ts index 9ad1f9a17c..29a6475c2c 100644 --- a/packages/bash/tool-bash/src/index.ts +++ b/packages/bash/tool-bash/src/index.ts @@ -41,7 +41,7 @@ import type { Context } from 'cordis' import { isAbsolute, resolve as resolvePath } from 'node:path' import { defineTool } from '@deepseek-ai/dsh-tools' -import type { ToolCallPresentation, ToolResult, ToolResultPresentation } from '@deepseek-ai/dsh-tools' +import type { GenericCallView, TerminalCallView, ToolResult, ToolResultView } from '@deepseek-ai/dsh-tools' import type { Agent } from '@deepseek-ai/dsh-agent' import { BashTaskId, OwnerToken } from '@deepseek-ai/dsh-bash' import type { BashRunResult, BashTask, CollectedOutput } from '@deepseek-ai/dsh-bash' @@ -158,16 +158,26 @@ export function renderResult(result: BashRunResult): string { */ type BashCallArgs = { command: string; description: string; workdir?: string; run_in_background?: boolean } -function presentBashCall(args: BashCallArgs): ToolCallPresentation { - const base = { - title: args.command, - kind: 'execute' as const, - rawInput: args.command, - content: [{ type: 'text' as const, text: args.description }], +function presentBashCall(args: BashCallArgs): GenericCallView | TerminalCallView { + // A background start is not an interactive terminal — a generic execute card + // with the command as rawInput and the description as a content block. + if (args.run_in_background === true) { + return { + card: 'generic', + title: args.command, + kind: 'execute', + rawInput: args.command, + content: [{ type: 'text', text: args.description }], + } + } + // A foreground run IS a terminal: the command titles the card, the description + // renders above it, and the cwd (when the model gave a workdir) heads it. + return { + card: 'terminal', + title: args.command, + description: args.description, + ...args.workdir !== undefined ? { cwd: args.workdir } : {}, } - // A background start is not an interactive terminal — no terminal card. - if (args.run_in_background === true) return base - return { ...base, terminal: args.workdir !== undefined ? { cwd: args.workdir } : {} } } /** @@ -186,21 +196,25 @@ function presentBashCall(args: BashCallArgs): ToolCallPresentation { * task-id ack, not a streamed run) and an `isError` result (a spawn failure or * abort — there is no real process exit to pill, and the body is an error * message, not `renderResult` output, so parsing it would be meaningless). Those - * fall back to the fenced `content` block with no terminal metadata. The bridge's - * orphan guard also drops a result terminal when the call wasn't terminal, so a - * background call (not marked terminal in `presentBashCall`) is doubly safe. - * A non-text result (unexpected for bash) falls through to `undefined`. + * return a `generic` result whose content is the fenced ```console block. A + * finished foreground run returns a `terminal` result carrying the RAW output + * and the parsed exit status; the BRIDGE derives the fenced fallback from + * `output` for a UI without terminal support, so the tool does not double-encode + * it. A non-text result (unexpected for bash) falls through to `undefined`. */ -function presentBashResult(args: unknown, result: ToolResult): ToolResultPresentation | undefined { +function presentBashResult(args: unknown, result: ToolResult): ToolResultView | undefined { const block = result.content.length === 1 ? result.content[0] : undefined if (block === undefined || block.type !== 'text') return undefined const raw = block.text - const fenced = raw.replace(/\n+$/, '') - const content = [{ type: 'text' as const, text: `\`\`\`console\n${fenced}\n\`\`\`` }] const isBackground = typeof args === 'object' && args !== null && (args as { run_in_background?: unknown }).run_in_background === true - // No exit pill / terminal output for a background ack or an errored run. - if (isBackground || result.isError) return { content } - return { content, terminal: { output: raw, ...parseExitStatus(raw) } } + // A background ack or an errored run is not a real terminal exit: render the + // fenced ```console fallback as generic content (no exit pill). + if (isBackground || result.isError) { + return { card: 'generic', content: [{ type: 'text', text: `\`\`\`console\n${raw.replace(/\n+$/, '')}\n\`\`\`` }] } + } + // A finished foreground run: RAW output + parsed exit for the terminal card. + // The bridge derives the no-capability fenced fallback from `output`. + return { card: 'terminal', output: raw, ...parseExitStatus(raw) } } /** @@ -237,8 +251,8 @@ function parseExitStatus(text: string): { exitCode: number } | { signal: string } /** Pending-state presentation for `bash_output`/`bash_kill` (background-task tools). */ -function presentTaskCall(verb: string, args: { task_id: string }): ToolCallPresentation { - return { title: `${verb} background task ${args.task_id}`, kind: 'execute', rawInput: args.task_id } +function presentTaskCall(verb: string, args: { task_id: string }): GenericCallView { + return { card: 'generic', title: `${verb} background task ${args.task_id}`, kind: 'execute', rawInput: args.task_id } } /** diff --git a/packages/bash/tool-bash/tests/tools.spec.ts b/packages/bash/tool-bash/tests/tools.spec.ts index 9de079fd33..368ed4fdd7 100644 --- a/packages/bash/tool-bash/tests/tools.spec.ts +++ b/packages/bash/tool-bash/tests/tools.spec.ts @@ -716,45 +716,40 @@ describe('status lines', () => { }) describe('tool-owned UI presentation (presentCall / presentResult)', () => { - it('bash presentCall: title is the command, description as a content block, marks a terminal; workdir → cwd (absolute or relative, bridge resolves)', async () => { + it('bash presentCall: a foreground run is a terminal card (command title, description, workdir → cwd absolute or relative)', async () => { const ctx = await setup() - // No explicit workdir → the call still flags a terminal, but with no cwd (the - // UI bridge fills the session cwd it owns; the pure presenter can't see it). - // The command is the title (an execute card hides rawInput); the description - // rides as a content text block (shown above the terminal card). + // No explicit workdir → a terminal card with no cwd (the UI bridge fills the + // session cwd it owns; the pure presenter can't see it). expect(ctx.tools.get('bash')?.presentCall?.({ command: 'ls -la src', description: 'List files in src' })) - .toEqual({ title: 'ls -la src', kind: 'execute', rawInput: 'ls -la src', content: [{ type: 'text', text: 'List files in src' }], terminal: {} }) + .toEqual({ card: 'terminal', title: 'ls -la src', description: 'List files in src' }) // An ABSOLUTE workdir is surfaced verbatim as the terminal cwd header. expect(ctx.tools.get('bash')?.presentCall?.({ command: 'pwd', description: 'Print dir', workdir: '/tmp/x' })) - .toEqual({ title: 'pwd', kind: 'execute', rawInput: 'pwd', content: [{ type: 'text', text: 'Print dir' }], terminal: { cwd: '/tmp/x' } }) + .toEqual({ card: 'terminal', title: 'pwd', description: 'Print dir', cwd: '/tmp/x' }) // A RELATIVE workdir is passed through AS-IS (the bridge resolves it against // the session cwd, matching where execution runs) — not dropped. expect(ctx.tools.get('bash')?.presentCall?.({ command: 'pwd', description: 'Print dir', workdir: 'sub' })) - .toEqual({ title: 'pwd', kind: 'execute', rawInput: 'pwd', content: [{ type: 'text', text: 'Print dir' }], terminal: { cwd: 'sub' } }) + .toEqual({ card: 'terminal', title: 'pwd', description: 'Print dir', cwd: 'sub' }) }) - it('bash presentResult: console-block content AND terminal.output (RAW newlines) + parsed exit code', async () => { + it('bash presentResult: a terminal result carries RAW output (newlines intact) + parsed exit code', async () => { const ctx = await setup() const present = ctx.tools.get('bash')!.presentResult!( { command: 'echo hi', description: 'echo' }, { content: [{ type: 'text', text: 'hi\n[exit code: 0]\n\n' }], isError: false }, ) - // The fenced ```console content trims trailing blank lines for a tidy block; - // terminal.output keeps the RAW bytes (newlines intact) a terminal renderer - // needs; exitCode is parsed back from the [exit code: N] marker. - expect(present).toEqual({ - content: [{ type: 'text', text: '```console\nhi\n[exit code: 0]\n```' }], - terminal: { output: 'hi\n[exit code: 0]\n\n', exitCode: 0 }, - }) + // A terminal result keeps the RAW bytes (newlines intact) a terminal renderer + // needs; the bridge derives the fenced fallback. exitCode is parsed back from + // the [exit code: N] marker. + expect(present).toEqual({ card: 'terminal', output: 'hi\n[exit code: 0]\n\n', exitCode: 0 }) }) it('bash presentResult: a non-zero exit and a signal kill parse into exitCode / signal', async () => { const ctx = await setup() const args = { command: 'x', description: 'x' } const nonzero = ctx.tools.get('bash')!.presentResult!(args, { content: [{ type: 'text', text: 'oops\n[exit code: 3]' }], isError: false }) - expect(nonzero?.terminal).toEqual({ output: 'oops\n[exit code: 3]', exitCode: 3 }) + expect(nonzero).toEqual({ card: 'terminal', output: 'oops\n[exit code: 3]', exitCode: 3 }) const killed = ctx.tools.get('bash')!.presentResult!(args, { content: [{ type: 'text', text: 'gone\n[killed by signal: SIGKILL]' }], isError: false }) - expect(killed?.terminal).toEqual({ output: 'gone\n[killed by signal: SIGKILL]', signal: 'SIGKILL' }) + expect(killed).toEqual({ card: 'terminal', output: 'gone\n[killed by signal: SIGKILL]', signal: 'SIGKILL' }) }) it('bash presentResult exit parse is the inverse of renderResult markers (round-trip)', async () => { @@ -779,7 +774,8 @@ describe('tool-owned UI presentation (presentCall / presentResult)', () => { for (const c of cases) { const rendered = renderResult(c.result) const out = present.presentResult!({ command: 'x', description: 'x' }, { content: [{ type: 'text', text: rendered }], isError: false }) - const { output: _o, ...exit } = out?.terminal ?? {} + // Drop card + output; the remaining fields are the parsed exit. + const { card: _c, output: _o, ...exit } = out as { card: string; output?: string; exitCode?: number; signal?: string } expect(exit).toEqual(c.expect) } }) @@ -793,37 +789,35 @@ describe('tool-owned UI presentation (presentCall / presentResult)', () => { // the marker (renderResult always inserts one before a REAL marker), so this // no-trailing-newline body is NOT mistaken for a failure → exitCode 0. const out = ctx.tools.get('bash')!.presentResult!(args, { content: [{ type: 'text', text: '[exit code: 5]' }], isError: false }) - expect(out?.terminal).toEqual({ output: '[exit code: 5]', exitCode: 0 }) + expect(out).toEqual({ card: 'terminal', output: '[exit code: 5]', exitCode: 0 }) // Same for a fake signal marker with no leading newline. const sig = ctx.tools.get('bash')!.presentResult!(args, { content: [{ type: 'text', text: '[killed by signal: SIGKILL]' }], isError: false }) - expect(sig?.terminal).toEqual({ output: '[killed by signal: SIGKILL]', exitCode: 0 }) + expect(sig).toEqual({ card: 'terminal', output: '[killed by signal: SIGKILL]', exitCode: 0 }) }) - it('bash presentCall/presentResult: a run_in_background call is NOT a terminal and its ack carries no exit pill', async () => { + it('bash presentCall/presentResult: a run_in_background call is a generic card and its ack carries no exit pill', async () => { const ctx = await setup() - // The background start returns a task-id ack, not a streamed run — no terminal. + // The background start returns a task-id ack, not a streamed run — a generic + // execute card with the command as rawInput and the description as content. const call = ctx.tools.get('bash')!.presentCall!({ command: 'sleep 100', description: 'wait', run_in_background: true }) - expect(call).toEqual({ title: 'sleep 100', kind: 'execute', rawInput: 'sleep 100', content: [{ type: 'text', text: 'wait' }] }) - expect((call as { terminal?: unknown }).terminal).toBeUndefined() - // The ack result is fenced text only — no terminal output / exit pill. + expect(call).toEqual({ card: 'generic', title: 'sleep 100', kind: 'execute', rawInput: 'sleep 100', content: [{ type: 'text', text: 'wait' }] }) + // The ack result is a generic fenced-text card — no terminal output / exit pill. const result = ctx.tools.get('bash')!.presentResult!( { command: 'sleep 100', description: 'wait', run_in_background: true }, { content: [{ type: 'text', text: 'started background task bash-1' }], isError: false }, ) - expect(result?.terminal).toBeUndefined() - expect(result?.content).toEqual([{ type: 'text', text: '```console\nstarted background task bash-1\n```' }]) + expect(result).toEqual({ card: 'generic', content: [{ type: 'text', text: '```console\nstarted background task bash-1\n```' }] }) }) - it('bash presentResult: an isError result carries no exit pill (no real process exit to report)', async () => { + it('bash presentResult: an isError result is a generic card (no real process exit to report)', async () => { const ctx = await setup() // A spawn failure / abort has no process exit — the body is an error message, - // not renderResult output, so no terminal output/exit is emitted. + // not renderResult output, so a generic fenced card, no terminal output/exit. const out = ctx.tools.get('bash')!.presentResult!( { command: 'x', description: 'x' }, { content: [{ type: 'text', text: 'command aborted' }], isError: true }, ) - expect(out?.terminal).toBeUndefined() - expect(out?.content).toEqual([{ type: 'text', text: '```console\ncommand aborted\n```' }]) + expect(out).toEqual({ card: 'generic', content: [{ type: 'text', text: '```console\ncommand aborted\n```' }] }) }) it('bash presentResult: leaves a non-text (unexpected) result untouched → undefined (UI keeps raw content)', async () => { @@ -849,9 +843,9 @@ describe('tool-owned UI presentation (presentCall / presentResult)', () => { it('bash_output / bash_kill presentCall: a readable task-scoped title, task id as rawInput', async () => { const ctx = await setup() expect(ctx.tools.get('bash_output')!.presentCall!({ task_id: 'bash-3' })) - .toEqual({ title: 'Read output from background task bash-3', kind: 'execute', rawInput: 'bash-3' }) + .toEqual({ card: 'generic', title: 'Read output from background task bash-3', kind: 'execute', rawInput: 'bash-3' }) expect(ctx.tools.get('bash_kill')!.presentCall!({ task_id: 'bash-3' })) - .toEqual({ title: 'Kill background task bash-3', kind: 'execute', rawInput: 'bash-3' }) + .toEqual({ card: 'generic', title: 'Kill background task bash-3', kind: 'execute', rawInput: 'bash-3' }) }) it('presentCall validates softly: malformed args (missing required description) return undefined, never throw', async () => { diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index 01a2e09d3b..a01881de5b 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -27,7 +27,7 @@ Tool registry and execution waterfall. Tool plugins register their schemas and e - `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise`, plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). - `ToolExecution` — one pending tool call: `{ callId, name, arguments, agent?, signal? }`. - `ToolExecutionResult` — outcome: `{ callId, content, isError, error? }`. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). -- `ToolCallPresentation` / `ToolResultPresentation` — provider-neutral shapes a tool returns from `presentCall` / `presentResult` to own how a UI renders ITS calls (see "Tool-owned UI presentation"). +- `ToolCallView` / `ToolResultView` — provider-neutral `card`-tagged render intents a tool returns from `presentCall` / `presentResult` to own how a UI renders ITS calls (see "Tool-owned UI presentation"). ### Extension points @@ -70,12 +70,17 @@ See `defineTool`, `validateArgs`, `ToolArgsError`, `SchemaSpec`, `InferArgs`, an ### Tool-owned UI presentation -A tool owns how ITS calls render in a UI (an editor's tool-call card, a CLI log line) — a UI plugin must NOT special-case tool names. A `ToolDefinition` may declare two optional, pure, display-only methods: +A tool owns how ITS calls render in a UI (an editor's tool-call card, a CLI log line) — a UI plugin must NOT special-case tool names. A `ToolDefinition` may declare two optional, pure, display-only methods that return a **`card`-tagged render intent** (a discriminated union — a tool declares its card kind once and a UI bridge switches on `card`): -- `presentCall(args): ToolCallPresentation | undefined` — the PENDING state: a human-readable `title` (always-visible label), an optional `kind` (`read`/`edit`/`execute`/… for icon/treatment, default `other`), an optional `rawInput` (the salient input to show in a detail view — e.g. a shell command as a string, NOT the whole args object), an optional `content` (UI content shown alongside the title/card — e.g. a bash `description` as a text block above the terminal card), an optional `locations` (`{ path, line? }[]` — the files this call reads/modifies, so a capable UI can follow along / jump to them; the ACP bridge forwards them as `tool_call.locations`), and an optional `terminal` (a neutral `{ cwd? }` asking a capable UI to render this call as a TERMINAL, e.g. for `bash`). -- `presentResult(args, result): ToolResultPresentation | undefined` — the COMPLETED state, given the same `args` and the `{ content, isError }` result: an optional replacement `title`, reformatted `content` (e.g. wrap command output in a fenced ` ```console ` block — a UI-only affordance that must NOT appear in the model-facing `execute` result), and an optional `terminal` (the `{ output?, exitCode?, signal? }` for a terminal-rendered call). The `ToolTerminal` shape is provider-neutral; a UI bridge (the ACP bridge) maps it to a terminal card (with an exit-status pill) and a UI that can't ignores it and uses `content`. +- `presentCall(args): ToolCallView | undefined` — the PENDING state, one of: + - `{ card: 'generic', title, kind?, rawInput?, content?, locations? }` — the default card: a human-readable `title`, an optional `kind` (`read`/`edit`/`execute`/… for icon/treatment, default `other`), an optional `rawInput` (the salient input to show in a detail view — e.g. a background task id, NOT the whole args object), optional `content` (extra UI content blocks), and optional `locations` (`{ path, line? }[]` — files this call reads/modifies, so a capable UI can follow along; the ACP bridge forwards them as `tool_call.locations`). + - `{ card: 'terminal', title, description?, cwd? }` — a shell command: a capable UI renders a terminal card (the `title` is the command, `description` renders above it, `cwd` heads it); an incapable UI falls back to a generic execute card. + - `{ card: 'diff', title, diffs, locations? }` — a file create/modify: a capable UI renders an inline diff card from `diffs` (`{ path, oldText, newText }[]`; `oldText: null` for a new file). Used by `write`/`edit`. +- `presentResult(args, result): ToolResultView | undefined` — the COMPLETED state, given the same `args` and the `{ content, isError }` result, one of: + - `{ card: 'generic', title?, content? }` — an optional replacement `title` and reformatted `content`. + - `{ card: 'terminal', title?, output?, exitCode?, signal? }` — a terminal run's captured `output` and exit status. A capable UI shows an exit-status pill; an incapable UI gets a fenced ` ```console ` fallback the BRIDGE derives from `output` (the tool does not encode the fences). -Returning `undefined` (or omitting a method) tells a UI to fall back to a generic presentation (title = tool name, raw args as input, raw result content). Both methods must be **pure and side-effect-free**: a UI may call them during live streaming AND during a session-log replay, so they depend only on their arguments. With `defineTool`, `args` is the typed `InferArgs` shape; the helper soft-validates before calling (a malformed/older logged arg shape yields `undefined` rather than throwing, since display must never crash a replay). The shapes are provider-neutral — the ACP bridge (`dsh-acp`) maps them to ACP `tool_call`/`tool_call_update` wire fields, and `dsh-tool-bash` is the reference implementation. +Returning `undefined` (or omitting a method) tells a UI to fall back to a generic presentation (title = tool name, raw args as input, raw result content). Both methods must be **pure and side-effect-free**: a UI may call them during live streaming AND during a session-log replay, so they depend only on their arguments. With `defineTool`, `args` is the typed `InferArgs` shape; the helper soft-validates before calling (a malformed/older logged arg shape yields `undefined` rather than throwing, since display must never crash a replay). The views are provider-neutral — the ACP bridge (`dsh-acp`) maps each `card` to ACP `tool_call`/`tool_call_update` wire fields (a `diff` card to a `{ type: 'diff' }` content block, a `terminal` card to the `_meta` terminal convention), and relativizes a file card's title against the session cwd. See the render-intent-union RFC (`docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md`); `dsh-tool-bash` (terminal) and `dsh-tool-fs` (diff/generic) are the reference implementations. ```ts import { defineTool } from '@deepseek-ai/dsh-tools' @@ -90,13 +95,13 @@ const bash = defineTool({ async execute(args) { return [{ type: 'text', text: `ran: ${args.command}` }] }, - // The command is the readable title; the description rides as a content block. - presentCall: args => ({ title: args.command, kind: 'execute', rawInput: args.command, content: [{ type: 'text', text: args.description }] }), - // Wrap the output as a console block for the UI (not in the model-facing result). + // A terminal card: the command is the title, the description renders above it. + presentCall: args => ({ card: 'terminal', title: args.command, description: args.description }), + // A terminal result: the raw output + exit; the bridge derives the fenced fallback. presentResult: (_args, result) => { const block = result.content.length === 1 ? result.content[0] : undefined if (block === undefined || block.type !== 'text') return undefined - return { content: [{ type: 'text', text: '```console\n' + block.text + '\n```' }] } + return { card: 'terminal', output: block.text } }, }) ``` diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index c2f324e87b..594e5761cb 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -62,150 +62,182 @@ declare module 'cordis' { */ export type ToolCallKind = 'read' | 'edit' | 'delete' | 'move' | 'search' | 'execute' | 'fetch' | 'other' -// FIXME(tool-presentation): the ToolCallPresentation / ToolResultPresentation / -// ToolTerminal shapes need a rethink. They grew incrementally (title/kind/ -// rawInput, then a `content` block, then a `terminal` sub-shape carrying cwd/ -// output/exit) and the split of responsibility is now muddy: the call vs result -// terminal fields overlap, the bridge has to reconcile a `content` block AND a -// `terminal` block AND `rawInput` per call, and the "pending vs completed" -// boundary doesn't cleanly map to how editors actually render (terminal card, -// diff, generic card). Before more tools/UIs depend on this, redesign the type -// so a tool declares its render INTENT once (e.g. a tagged union over card -// kinds) rather than a bag of optional fields the bridge stitches together. -// Pin the design in an RFC and migrate dsh-tool-bash + the ACP bridge together. +/** + * A file location a tool reads or modifies, so a capable UI can "follow along" — + * highlight or jump to the file (and line) as the tool runs. Provider-neutral; + * a UI bridge maps it to its own affordance (the ACP bridge forwards it as + * `tool_call.locations`). `path` is what the tool operated on (the model-facing + * path); `line` is an optional 1-based line to focus (e.g. a read's offset). + */ +export interface FileLocation { + path: string + line?: number +} /** - * How a tool wants ONE of its calls shown in a UI (an editor's tool-call card, - * a CLI log line) BEFORE the result is known — the *pending* state. Provider- - * neutral: a tool returns this from {@link ToolDefinition.presentCall} and a UI - * plugin (e.g. the ACP bridge) maps it to its own wire shape. The tool owns its - * own presentation — the UI must not special-case tool names. + * A single-file change a tool is about to make, for a UI that renders inline + * diffs (an editor's diff card). Provider-neutral; the ACP bridge forwards it as + * a `{ type: 'diff' }` tool-call content block. `oldText` is `null` for a + * new-file create (nothing to diff against); an overwrite also uses `null`, + * because a call-time presenter has no access to the file's prior content. */ -export interface ToolCallPresentation { +export interface FileDiff { + path: string + /** Prior content, or `null` for a new file / an overwrite (no prior content available at call time). */ + oldText: string | null + /** Content after the change. */ + newText: string +} + +/** + * How a tool wants ONE of its calls shown in a UI (an editor's tool-call card, a + * CLI log line) BEFORE the result is known — the *pending* state. A `card`-tagged + * discriminated union: a tool declares its render INTENT once and a UI bridge + * switches on `card` to map it to the bridge's own wire shape. Provider-neutral — + * the tool owns its presentation, so a UI never special-cases tool names. + * + * Returned by {@link ToolDefinition.presentCall}. See the render-intent-union + * RFC (docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md). + */ +export type ToolCallView = GenericCallView | TerminalCallView | DiffCallView + +/** + * The default card: a titled tool-call row with an optional category icon, a + * salient raw input, extra content blocks, and follow-along file locations. Any + * tool whose call is not a terminal or a diff uses this. + */ +export interface GenericCallView { + card: 'generic' /** - * Human-readable, always-visible label describing what THIS call does (e.g. - * the model-written one-line summary of a bash command). Keep it short — a UI - * shows it as a card header / log line. Required: a presentation must have a - * title (a UI falls back to the tool name only when `presentCall` is absent). + * Human-readable, always-visible label describing what THIS call does. Keep it + * short — a UI shows it as a card header / log line. */ title: string /** Category for icon/treatment; defaults to `other` when omitted. */ kind?: ToolCallKind /** - * The salient input to surface in a detail/expanded view — e.g. the bash - * COMMAND itself (as a string), so the title can stay a readable summary - * while the exact command is still visible. Omit to show nothing; a string is - * rendered as-is, an object as pretty JSON. NOT the full raw args object - * unless that is genuinely what a reader wants. + * The salient input to surface in a detail/expanded view (e.g. a background + * task id). Omit to show nothing; a string renders as-is, an object as pretty + * JSON. NOT the full raw args object unless that is genuinely what a reader wants. */ rawInput?: unknown /** - * UI-facing content to show on the PENDING call alongside the title/card — - * harness {@link ContentBlock}s, in render order. A terminal tool uses this to - * surface its human-readable `description` as a text block ABOVE the terminal - * card (the card itself is requested via {@link terminal} and labelled by the - * command in `title`), since the card has no description slot. Omit to show no - * extra content. A UI maps these to its own content blocks and renders a - * {@link terminal} block (if any) as a terminal card. + * UI-facing content blocks to show on the pending call alongside the title. + * Omit to show none. A UI maps these to its own content blocks. */ content?: ContentBlock[] - /** - * Files this call reads or modifies, so a capable UI can "follow along" — - * highlight or jump to the file (and line) as the tool runs. Provider-neutral - * `{ path, line? }` pairs; a UI bridge maps them to its own affordance (the ACP - * bridge forwards them as `tool_call.locations`). `path` is what the tool - * operated on (the model-facing path); `line` is an optional 1-based line to - * focus (e.g. a read's offset). Omit for a call that touches no file (e.g. - * `bash`). - */ - locations?: { path: string; line?: number }[] - /** - * Ask a capable UI to render this call as a TERMINAL (a command running in a - * working directory), not a generic tool card — set by a tool whose call IS a - * shell command (e.g. `bash`). Provider-neutral; a UI bridge maps it to its - * own terminal affordance and a UI that can't falls back to the normal card. - * Pair with {@link ToolResultPresentation.terminal} for the output/exit. - */ - terminal?: ToolTerminal + /** Files this call reads/modifies, for editor follow-along. Omit for a call that touches no file. */ + locations?: FileLocation[] } /** - * A request to render a tool call as a terminal. The pending presentation - * supplies the working directory; the result presentation (see - * {@link ToolResultPresentation.terminal}) supplies the captured output and exit - * status. Provider-neutral — no client-protocol types. A UI that supports - * terminals shows a cwd-headed terminal card with the command, its output, and - * an exit-status pill; a UI that does not ignores this and renders the ordinary - * card/content. + * A call that IS a shell command running in a working directory: a capable UI + * renders it as a terminal card (cwd-headed, with the command as the title and + * live/afterward output from the {@link TerminalResultView}); an incapable UI + * falls back to a generic card whose body is the fenced command output. Set by a + * tool whose call is a foreground command (e.g. `bash`). */ -export interface ToolTerminal { +export interface TerminalCallView { + card: 'terminal' + /** The command, shown as the terminal card's title / header line. */ + title: string /** - * Working directory the command ran in, shown as the terminal header. An + * A human-readable one-line summary of what the command does, rendered ABOVE + * the terminal card (the card itself has no description slot). Omit for none. + */ + description?: string + /** + * Working directory the command runs in, shown as the terminal header. An * ABSOLUTE path is used as-is; a RELATIVE path is resolved by the UI bridge - * against the session workspace (the pure tool presenter can't see the - * session cwd). Omit entirely to let the bridge use the session workspace. + * against the session workspace (the pure presenter can't see the session cwd). + * Omit entirely to let the bridge use the session workspace. */ cwd?: string - /** Captured command output (stdout+stderr as the tool chooses to combine them). Result-state only. */ - output?: string - /** - * Process exit code, when the run ended by exiting (not a signal). Result-state - * only; lets a capable UI show an exit-status pill on the terminal card. Omit - * when the command was killed by a signal or the exit code is unknown. - */ - exitCode?: number - /** - * Signal name that killed the process (e.g. `SIGTERM`), when it died by signal - * rather than exiting. Result-state only; mutually exclusive with `exitCode`. - */ - signal?: string } /** - * How a tool wants the COMPLETED call shown — the *result* state, after - * `execute` returns. Lets the tool reformat its result for a UI distinctly from - * the model-facing text it returned from `execute` (e.g. wrap command output in - * a fenced ```console block for monospace rendering, which the model-facing - * result must NOT carry). All fields optional: a UI keeps the pending-state - * title and renders the raw result content for anything left unset. + * A call that creates or modifies files, rendered as an inline diff card by a + * capable UI. Set by a tool whose call writes/edits a file (e.g. `write`, + * `edit`). The diffs are derived from the call ARGUMENTS (a create's `oldText` is + * `null`); result-time applied-hunk diffs are a separate follow-up. */ -export interface ToolResultPresentation { - /** Replacement title for the completed call (e.g. append an exit status). Omit to keep the pending-state title. */ +export interface DiffCallView { + card: 'diff' + /** Card header (e.g. `Write foo.txt`). */ + title: string + /** One entry per file the call changes. */ + diffs: FileDiff[] + /** Files this call modifies, for editor follow-along (usually the diffs' paths). */ + locations?: FileLocation[] +} + +/** + * How a tool wants the COMPLETED call shown — the *result* state, after `execute` + * returns. A `card`-tagged union mirroring {@link ToolCallView}: a UI switches on + * `card`. Lets the tool reformat its result for a UI distinctly from the + * model-facing text it returned from `execute`. Returned by + * {@link ToolDefinition.presentResult}; omitting the method keeps the pending + * title and renders the raw result content. + */ +export type ToolResultView = GenericResultView | TerminalResultView + +/** + * The default completed card: an optional replacement title and reformatted + * content. Omit a field to keep the pending title / render the raw result content. + */ +export interface GenericResultView { + card: 'generic' + /** Replacement title for the completed call. Omit to keep the pending-state title. */ title?: string /** * UI-facing result content (harness {@link ContentBlock}s), reformatted from * the model-facing result. Omit to let the UI render the raw result content. - * Stays in harness vocabulary; the UI maps these to its own content blocks. */ content?: ContentBlock[] +} + +/** + * The completed state of a {@link TerminalCallView}: the captured output and exit + * status. A capable UI renders `output` in the terminal card and shows an + * exit-status pill; an incapable UI gets a fenced ```console fallback the BRIDGE + * derives from `output` (the tool does not double-encode it). + */ +export interface TerminalResultView { + card: 'terminal' + /** Replacement title for the completed call. Omit to keep the pending-state title. */ + title?: string + /** Captured command output (stdout+stderr as the tool chooses to combine them). */ + output?: string /** - * Terminal output/exit for a call the pending presentation marked as a - * terminal (see {@link ToolCallPresentation.terminal}). A capable UI renders - * `output` in the terminal card and shows the exit status; an incapable UI - * uses `content` (the tool should supply a text fallback there too). + * Process exit code, when the run ended by exiting (not a signal). Lets a + * capable UI show an exit-status pill. Omit when killed by a signal or unknown. */ - terminal?: ToolTerminal + exitCode?: number + /** Signal name that killed the process (e.g. `SIGTERM`). Mutually exclusive with `exitCode`. */ + signal?: string } /** A registered tool: its schema plus the execution function. */ export interface ToolDefinition extends ToolSchema { execute(args: unknown, exec: ToolExecution): Promise /** - * Optional: how to present the PENDING state of one call in a UI, derived - * from the call's `args` (parsed arguments, `unknown` — the tool validates/ - * narrows its own input). Returning `undefined` (or omitting the method) tells - * a UI to fall back to a generic presentation (title = tool name, raw args as - * input). Pure and side-effect-free: a UI may call it during live streaming - * AND a session-log replay, so it must depend only on `args`. + * Optional: how to present the PENDING state of one call in a UI, derived from + * the call's `args` (parsed arguments, `unknown` — the tool validates/narrows + * its own input). Returns a {@link ToolCallView} (a `card`-tagged render intent), + * or `undefined` (or omit the method) to fall back to a generic presentation + * (title = tool name, raw args as input). Pure and side-effect-free: a UI may + * call it during live streaming AND a session-log replay, so it must depend + * only on `args`. */ - presentCall?(args: unknown): ToolCallPresentation | undefined + presentCall?(args: unknown): ToolCallView | undefined /** * Optional: how to present the COMPLETED state, given the same `args` and the - * `result` (`execute`'s content + whether it errored). Returning `undefined` - * (or omitting the method) tells a UI to keep the pending title and render the - * raw result content. Pure and side-effect-free for the same replay reason. + * `result` (`execute`'s content + whether it errored). Returns a + * {@link ToolResultView}, or `undefined` (or omit the method) to keep the + * pending title and render the raw result content. Pure and side-effect-free + * for the same replay reason. */ - presentResult?(args: unknown, result: ToolResult): ToolResultPresentation | undefined + presentResult?(args: unknown, result: ToolResult): ToolResultView | undefined } /** The completed outcome handed to {@link ToolDefinition.presentResult}. */ diff --git a/packages/core/tools/src/schema.ts b/packages/core/tools/src/schema.ts index b717eabf9a..0b3fc749f4 100644 --- a/packages/core/tools/src/schema.ts +++ b/packages/core/tools/src/schema.ts @@ -21,7 +21,7 @@ import type { ContentBlock } from '@deepseek-ai/dsh-llm' import { assertNever, HarnessError } from '@deepseek-ai/dsh-llm' -import type { ToolCallPresentation, ToolDefinition, ToolExecution, ToolResult, ToolResultPresentation } from './index.ts' +import type { ToolCallView, ToolDefinition, ToolExecution, ToolResult, ToolResultView } from './index.ts' // --------------------------------------------------------------------------- // SchemaSpec — the author-facing per-property type @@ -300,16 +300,16 @@ export interface DefineToolOptions { * argument shape — zero casts. Pure and side-effect-free: a UI may call it * during live streaming AND a session-log replay, so depend only on `args`. * The tool owns its presentation so a UI never special-cases tool names. See - * {@link ToolCallPresentation}. + * {@link ToolCallView}. */ - presentCall?(args: InferArgs): ToolCallPresentation | undefined + presentCall?(args: InferArgs): ToolCallView | undefined /** * Optional: how to present the COMPLETED state, given the typed `args` and the * `result`. Use it to reformat result content for a UI distinctly from the * model-facing text (e.g. a fenced ```console block). Pure and side-effect- - * free for the same replay reason. See {@link ToolResultPresentation}. + * free for the same replay reason. See {@link ToolResultView}. */ - presentResult?(args: InferArgs, result: ToolResult): ToolResultPresentation | undefined + presentResult?(args: InferArgs, result: ToolResult): ToolResultView | undefined /** Whether the tool requires structured output (default false). */ strict?: boolean } @@ -369,13 +369,13 @@ export function defineTool(options: DefineToolOptions): // fall back to `undefined` (a generic UI presentation) on any mismatch, rather // than the hard `ToolArgsError` the execute path raises. if (userPresentCall) { - tool.presentCall = (args: unknown): ToolCallPresentation | undefined => { + tool.presentCall = (args: unknown): ToolCallView | undefined => { if (validateArgs(options.parameters, args).length > 0) return undefined return userPresentCall(args as InferArgs) } } if (userPresentResult) { - tool.presentResult = (args: unknown, result: ToolResult): ToolResultPresentation | undefined => { + tool.presentResult = (args: unknown, result: ToolResult): ToolResultView | undefined => { if (validateArgs(options.parameters, args).length > 0) return undefined return userPresentResult(args as InferArgs, result) } diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index c88963ecc1..55aa5866ce 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -52,8 +52,8 @@ describe('ToolRegistry', () => { description: 'has presenters', parameters: { x: { type: 'string', required: true } }, async execute() { return [] }, - presentCall: args => ({ title: args.x }), - presentResult: (args, result) => ({ title: args.x, content: result.content }), + presentCall: args => ({ card: 'generic', title: args.x }), + presentResult: (args, result) => ({ card: 'generic', title: args.x, content: result.content }), })) const schema = ctx.tools.schemas()[0] as unknown as Record expect(Object.keys(schema).sort()).toEqual(['description', 'name', 'parameters']) @@ -906,15 +906,15 @@ describe('defineTool presentation (presentCall / presentResult)', () => { presentCall(args) { // args is typed { path: string; n?: number } — zero casts. expectTypeOf(args).toEqualTypeOf<{ path: string; n?: number }>() - return { title: `Open ${args.path}`, kind: 'read', rawInput: args.path } + return { card: 'generic', title: `Open ${args.path}`, kind: 'read', rawInput: args.path } }, presentResult(args, result) { - return { title: `Opened ${args.path}`, content: result.content } + return { card: 'generic', title: `Opened ${args.path}`, content: result.content } }, }) - expect(tool.presentCall!({ path: '/a', n: 2 })).toEqual({ title: 'Open /a', kind: 'read', rawInput: '/a' }) + expect(tool.presentCall!({ path: '/a', n: 2 })).toEqual({ card: 'generic', title: 'Open /a', kind: 'read', rawInput: '/a' }) expect(tool.presentResult!({ path: '/a' }, { content: [{ type: 'text', text: 'x' }], isError: false })) - .toEqual({ title: 'Opened /a', content: [{ type: 'text', text: 'x' }] }) + .toEqual({ card: 'generic', title: 'Opened /a', content: [{ type: 'text', text: 'x' }] }) }) it('a tool without presentCall/presentResult leaves them undefined (UI falls back generically)', () => { @@ -934,8 +934,8 @@ describe('defineTool presentation (presentCall / presentResult)', () => { description: 'demo', parameters: { path: { type: 'string', required: true } }, async execute() { return [] }, - presentCall: args => ({ title: args.path }), - presentResult: (args, result) => ({ title: args.path, content: result.content }), + presentCall: args => ({ card: 'generic', title: args.path }), + presentResult: (args, result) => ({ card: 'generic', title: args.path, content: result.content }), }) // Unlike execute (which throws ToolArgsError on a mismatch), the display // methods soft-validate and fall back to undefined so a UI never crashes diff --git a/packages/fs/tool-fs/src/edit.ts b/packages/fs/tool-fs/src/edit.ts index 1fb76ffd3c..7450bd895a 100644 --- a/packages/fs/tool-fs/src/edit.ts +++ b/packages/fs/tool-fs/src/edit.ts @@ -14,6 +14,7 @@ import type { Context } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' +import type { DiffCallView } from '@deepseek-ai/dsh-tools' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { FsEditOutcome } from '@deepseek-ai/dsh-fs' import type {} from '@deepseek-ai/dsh-fs' @@ -83,16 +84,15 @@ export function applyEditTool(ctx: Context): void { ctx.emit('fs/observed', target, outcome.version, exec) return [{ type: 'text', text: formatEditOutput(target.displayPath, outcome) }] }, - // Pure display: `edit` kind, a location for editor follow-along, and a short - // old→new summary as rawInput (truncated so a large replacement stays a - // readable card). The replacement COUNT is not available here — presentResult - // only sees `{ content, isError }`, not the outcome — so the title is static. - presentCall(args) { - const clip = (s: string): string => (s.length > 40 ? `${s.slice(0, 40)}…` : s) + // Pure display: a diff card of the literal replacement (old_string → + // new_string), derived from the call args. `oldText: old_string || null` + // matches claude-agent-acp's Edit arm; new_string is a required arg here, so + // it maps straight to newText. A follow-along location points at the file. + presentCall(args): DiffCallView { return { + card: 'diff', title: `Edit ${args.file_path}`, - kind: 'edit', - rawInput: `${JSON.stringify(clip(args.old_string))} → ${JSON.stringify(clip(args.new_string))}`, + diffs: [{ path: args.file_path, oldText: args.old_string || null, newText: args.new_string }], locations: [{ path: args.file_path }], } }, diff --git a/packages/fs/tool-fs/src/read.ts b/packages/fs/tool-fs/src/read.ts index 17fa7aa7ab..c984b53c9f 100644 --- a/packages/fs/tool-fs/src/read.ts +++ b/packages/fs/tool-fs/src/read.ts @@ -14,6 +14,7 @@ import type { Context } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' +import type { GenericCallView } from '@deepseek-ai/dsh-tools' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import { FsError } from '@deepseek-ai/dsh-fs' import type {} from '@deepseek-ai/dsh-fs' @@ -101,19 +102,21 @@ export function applyReadTool(ctx: Context): void { ctx.emit('fs/observed', target, info.version, exec) return [{ type: 'text', text: formatReadOutput(target.displayPath, outcome) }] }, - // Pure display: a UI card titled by the file, `read` kind (icon), and a - // location so an editor can follow along to the file (and the read's offset - // line). `rawInput` surfaces offset/limit when the model narrowed the read. - presentCall(args) { - const detail = [ - ...args.offset !== undefined ? [`offset ${args.offset}`] : [], - ...args.limit !== undefined ? [`limit ${args.limit}`] : [], - ].join(', ') + // Pure display: a generic card titled by the file with the read window + // appended (`Read foo.txt (5 - 8)`), `read` kind (icon), and a follow-along + // location whose line is the read's offset (defaulting to 1). The window is + // derived from the RAW args (offset/limit as the model passed them), NOT the + // tool's defaulted 1/READ_LIMIT, so an unbounded read shows a bare title. + presentCall(args): GenericCallView { + const { offset, limit } = args + const window = limit !== undefined && limit > 0 + ? ` (${offset ?? 1} - ${(offset ?? 1) + limit - 1})` + : offset !== undefined ? ` (from line ${offset})` : '' return { - title: `Read ${args.file_path}`, + card: 'generic', + title: `Read ${args.file_path}${window}`, kind: 'read', - locations: [{ path: args.file_path, ...args.offset !== undefined ? { line: args.offset } : {} }], - ...detail.length > 0 ? { rawInput: detail } : {}, + locations: [{ path: args.file_path, line: offset ?? 1 }], } }, })) diff --git a/packages/fs/tool-fs/src/write.ts b/packages/fs/tool-fs/src/write.ts index 97098bd78d..69844c55f6 100644 --- a/packages/fs/tool-fs/src/write.ts +++ b/packages/fs/tool-fs/src/write.ts @@ -13,6 +13,7 @@ import type { Context } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' +import type { DiffCallView } from '@deepseek-ai/dsh-tools' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { FsWriteOutcome } from '@deepseek-ai/dsh-fs' import type {} from '@deepseek-ai/dsh-fs' @@ -62,12 +63,17 @@ export function applyWriteTool(ctx: Context): void { ctx.emit('fs/observed', target, outcome.version, exec) return [{ type: 'text', text: formatWriteOutput(target.displayPath, outcome) }] }, - // Pure display: `edit` kind (an editor treats create/replace as an edit) and - // a location so the UI can follow along to the written file. The create-vs- - // overwrite fact lives in the model-facing result text; `presentResult` only - // sees `{ content, isError }` (not the outcome), so the title stays static. - presentCall(args) { - return { title: `Write ${args.file_path}`, kind: 'edit', locations: [{ path: args.file_path }] } + // Pure display: a diff card (an editor renders write as a new-file / full- + // replace diff). `oldText: null` — a call-time presenter has no access to the + // file's prior content, so even an overwrite renders new-file style, matching + // claude-agent-acp. A follow-along location points at the written file. + presentCall(args): DiffCallView { + return { + card: 'diff', + title: `Write ${args.file_path}`, + diffs: [{ path: args.file_path, oldText: null, newText: args.content }], + locations: [{ path: args.file_path }], + } }, })) } diff --git a/packages/fs/tool-fs/tests/tools.spec.ts b/packages/fs/tool-fs/tests/tools.spec.ts index 12f373753e..7bdedf894a 100644 --- a/packages/fs/tool-fs/tests/tools.spec.ts +++ b/packages/fs/tool-fs/tests/tools.spec.ts @@ -352,34 +352,46 @@ describe('tool-owned presentation (pure presentCall)', () => { return ctx.tools.get(name)?.presentCall?.(args) } - it('read: titles by file, read kind, location with the offset line', async () => { + it('read: generic card titled by file with the read window, read kind, location with the offset line', async () => { expect(await presentCall('read', { file_path: 'src/a.ts', offset: 12, limit: 40 })).toEqual({ - title: 'Read src/a.ts', kind: 'read', rawInput: 'offset 12, limit 40', + card: 'generic', title: 'Read src/a.ts (12 - 51)', kind: 'read', locations: [{ path: 'src/a.ts', line: 12 }], }) }) - it('read: omits rawInput and the location line when offset/limit are unset', async () => { + it('read: bare title and line-1 location when offset/limit are unset', async () => { expect(await presentCall('read', { file_path: 'a.txt' })).toEqual({ - title: 'Read a.txt', kind: 'read', locations: [{ path: 'a.txt' }], + card: 'generic', title: 'Read a.txt', kind: 'read', locations: [{ path: 'a.txt', line: 1 }], }) }) - it('write: titles by file, edit kind, location', async () => { - expect(await presentCall('write', { file_path: 'out.txt', content: 'x' })).toEqual({ - title: 'Write out.txt', kind: 'edit', locations: [{ path: 'out.txt' }], + it('read: "from line N" window when only offset is set', async () => { + expect(await presentCall('read', { file_path: 'a.txt', offset: 5 })).toEqual({ + card: 'generic', title: 'Read a.txt (from line 5)', kind: 'read', locations: [{ path: 'a.txt', line: 5 }], }) }) - it('edit: titles by file, edit kind, an old→new rawInput summary, location', async () => { - expect(await presentCall('edit', { file_path: 'a.txt', old_string: 'foo', new_string: 'bar' })).toEqual({ - title: 'Edit a.txt', kind: 'edit', rawInput: '"foo" → "bar"', locations: [{ path: 'a.txt' }], + it('write: diff card (new-file style, oldText null), location', async () => { + expect(await presentCall('write', { file_path: 'out.txt', content: 'hello' })).toEqual({ + card: 'diff', title: 'Write out.txt', + diffs: [{ path: 'out.txt', oldText: null, newText: 'hello' }], + locations: [{ path: 'out.txt' }], }) }) - it('edit: clips a long old/new string in the rawInput summary', async () => { - const long = 'a'.repeat(60) - const p = await presentCall('edit', { file_path: 'a.txt', old_string: long, new_string: 'b' }) - expect((p as { rawInput: string }).rawInput).toBe(`${JSON.stringify(`${'a'.repeat(40)}…`)} → ${JSON.stringify('b')}`) + it('read: a limit with no offset windows from line 1', async () => { + expect(await presentCall('read', { file_path: 'a.txt', limit: 10 })).toEqual({ + card: 'generic', title: 'Read a.txt (1 - 10)', kind: 'read', locations: [{ path: 'a.txt', line: 1 }], + }) + }) + + it('edit: an empty old_string maps to oldText null (a whole-file replace diff)', async () => { + // presentCall runs on replay of raw logged args, which parseEditArgs does not + // gate — an empty old_string must still produce a valid diff (oldText null). + expect(await presentCall('edit', { file_path: 'a.txt', old_string: '', new_string: 'seed' })).toEqual({ + card: 'diff', title: 'Edit a.txt', + diffs: [{ path: 'a.txt', oldText: null, newText: 'seed' }], + locations: [{ path: 'a.txt' }], + }) }) }) diff --git a/packages/todo/tool-todo/src/index.ts b/packages/todo/tool-todo/src/index.ts index 912e08f269..01d862e4d5 100644 --- a/packages/todo/tool-todo/src/index.ts +++ b/packages/todo/tool-todo/src/index.ts @@ -118,6 +118,6 @@ export function apply(ctx: Context): void { text: `Updated todo list: ${count('pending')} pending, ${count('in_progress')} in progress, ${count('completed')} completed.`, }]) }, - presentCall: args => ({ title: 'Update todo list', kind: 'other', rawInput: args.todos }), + presentCall: args => ({ card: 'generic', title: 'Update todo list', kind: 'other', rawInput: args.todos }), })) } diff --git a/packages/todo/tool-todo/tests/tool-todo.spec.ts b/packages/todo/tool-todo/tests/tool-todo.spec.ts index 8b1c504840..86e8814633 100644 --- a/packages/todo/tool-todo/tests/tool-todo.spec.ts +++ b/packages/todo/tool-todo/tests/tool-todo.spec.ts @@ -135,7 +135,7 @@ describe('dsh-tool-todo', () => { const ctx = await setup() const def = ctx.tools.get('todo_write')! const todos = [{ content: 'a', status: 'pending' }] - expect(def.presentCall?.({ todos })).toEqual({ title: 'Update todo list', kind: 'other', rawInput: todos }) + expect(def.presentCall?.({ todos })).toEqual({ card: 'generic', title: 'Update todo list', kind: 'other', rawInput: todos }) }) it('unregisters the tool when its contributing fiber is disposed (HMR-safety)', async () => { diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index 8d0444de70..32e4326b99 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -28,7 +28,7 @@ It is a **client-driver / UI plugin**, the structured analogue of the readline ` | `session/load` | `ctx.agents.resume(...)` | replays the persisted event log to the client as `session/update` — the USER side (`user/message` → `user_message_chunk`), assistant text/reasoning (`assistant/chunk`), and tool calls/results (`tool/call` + `tool/result`). Re-loading an already-live id is rejected; the id's load slot is reserved (`loadingIds`) BEFORE the async resume so a pipelined load of the SAME id can't leak a second agent (distinct ids load concurrently). The resumed session keeps its PERSISTED header `cwd`, so its bash tools run in the original workspace; the requested `cwd` must be absolute and match the persisted `cwd`. After the async resume a `closed` re-check refuses to install a record if the bridge tore down mid-load | | `session/prompt` | `agent.send()` | supports ACP `text` and `resource_link` blocks; rejects image/audio/embedded resource and empty prompts; one in-flight prompt PER session (independent); settles on the OWNING turn's end (a turn that ends in `error` rejects the RPC) | | `session/cancel` | `agent.cancel()` | the queue-aware cancel: aborts a running step, clears queued + steering work, and drops a turn about to start, then settles the prompt `cancelled` — for ONLY that session (a cancel never touches another session's stream or prompt) | -| `session/update` | `session/event` | `agent_message_chunk` (text-delta), `agent_thought_chunk` (reasoning-delta), `user_message_chunk` (load replay), `tool_call`/`tool_call_update` (title/kind/rawInput/content/locations owned by the TOOL via `presentCall`/`presentResult` — see Tool-call presentation) | +| `session/update` | `session/event` | `agent_message_chunk` (text-delta), `agent_thought_chunk` (reasoning-delta), `user_message_chunk` (load replay), `tool_call`/`tool_call_update` (the render intent — a `card`-tagged `ToolCallView`/`ToolResultView` — owned by the TOOL via `presentCall`/`presentResult`, which the bridge switches on to build the wire shape — see Tool-call presentation) | ## Multi-session @@ -42,18 +42,24 @@ Each session runs in its own workspace, recorded as the session's `SessionHeader ## Tool-call presentation -How a tool call renders in the editor is owned by the TOOL, not the bridge — the bridge never special-cases tool names. Each tool may declare `presentCall(args)` (pending state: a human-readable `title`, a `kind` for the icon, the salient `rawInput` to show in a detail view, optional `content` blocks shown alongside, and optional `locations` — `{ path, line? }[]` files the call reads/modifies, forwarded as `tool_call.locations` so an editor can follow along) and `presentResult(args, result)` (completed state: an optional replacement `title` and reformatted `content`) on its `dsh-tools` definition. The bridge looks the definition up by name in `ctx.tools` and maps the neutral `ToolCallPresentation`/`ToolResultPresentation` to the ACP `tool_call`/`tool_call_update` wire shapes. A tool that declares neither gets a generic fallback (title = tool name, raw parsed args as `rawInput`, kind inferred from the name). For example `dsh-tool-bash` sets the title to the exact `command` ("ls -la src"), `kind: 'execute'`, the `command` as `rawInput`, the model `description` as a `content` text block, and wraps the completed output in a fenced ` ```console ` block; the `dsh-tool-fs` `read`/`write`/`edit` tools set a `Read/Write/Edit ` title, a `read`/`edit` kind, and a `locations` entry for the file. (The command is the title because an editor hides `rawInput` for execute-kind cards — Zed renders it only for non-terminal tools — and the reference adapters likewise use the command as an execute tool's title.) +How a tool call renders in the editor is owned by the TOOL, not the bridge — the bridge never special-cases tool names. Each tool may declare `presentCall(args)` (pending state) and `presentResult(args, result)` (completed state) on its `dsh-tools` definition, each returning a **`card`-tagged render intent** — a discriminated union the bridge switches on. `presentCall` returns a `ToolCallView`, one of three cards: + +- `{ card: 'generic', title, kind?, rawInput?, content?, locations? }` — the default card: a human-readable `title`, a `kind` for the icon, the salient `rawInput` for a detail view, optional `content` blocks shown alongside, and optional `locations` (`FileLocation[]` = `{ path, line? }[]` files the call reads/modifies, forwarded as `tool_call.locations` so an editor can follow along). +- `{ card: 'terminal', title, description?, cwd? }` — a shell command → a terminal card (see Terminal card). +- `{ card: 'diff', title, diffs, locations? }` — a file create/modify → an inline diff card; `diffs` is `FileDiff[]` (`{ path, oldText, newText }`, `oldText: null` ⇒ new file). The bridge emits each diff as an ACP `{ type: 'diff', path, oldText, newText }` `tool_call.content` block, which Zed renders as an inline diff / new-file preview. + +`presentResult` returns a `ToolResultView`, one of two cards: `{ card: 'generic', title?, content? }` (an optional replacement `title` and reformatted `content`) or `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit — see Terminal card). The bridge looks the definition up by name in `ctx.tools` and `switch (view.card)`es to build the ACP `tool_call`/`tool_call_update` wire shape per card; a tool that declares neither gets a generic fallback (title = tool name, raw parsed args as `rawInput`, kind inferred from the name). For example `dsh-tool-bash` returns a `terminal` card for a foreground `bash` (title = the exact `command` "ls -la src", `description` = the model description); the `dsh-tool-fs` `write`/`edit` tools return a `diff` card and `read` returns a `generic` card (`kind: 'read'`, the read window in its title — `Read foo.txt (5 - 8)` — and a `locations` entry for the file). For a file card the bridge **relativizes the title** against the session cwd (mirroring `claude-agent-acp`'s `toDisplayPath` — `Read src/foo.ts`, not the absolute path) while keeping `locations[]`/`diffs[].path` **raw** so the editor opens the real path. The `tool/result` session event carries only `{ callId, content, isError }` — not the tool name or args — so to call a tool's `presentResult` the bridge keeps a small per-session map from `callId` to the in-flight call's `(name, args)`, populated on `tool/call` and removed as each result is presented (it holds only currently-in-flight calls, never finished ones). This is bridge-local state — NOT a change to the event schema or a core service. The map lives on the `SessionRecord`, so two concurrent sessions never cross their in-flight tool state; a `session/load` replay uses a throwaway presenter that pairs each `tool/call` with its `tool/result` as the log replays in order, so replayed tool cards render identically to live ones. ## Terminal card (capability-gated) -A tool whose call IS a shell command (`bash`) can render as a real **terminal card** — a working-directory header with the command's output and an exit-status pill — rather than a plain text block. The tool asks for this with the neutral `terminal` field on its presentation (`dsh-tools`: a `{ cwd?, output?, exitCode?, signal? }` shape on `ToolCallPresentation`/`ToolResultPresentation`); the bridge maps it to the Zed `_meta` convention, gated on the client advertising `clientCapabilities._meta.terminal_output` in `initialize`: +A tool whose call IS a shell command (`bash`) can render as a real **terminal card** — a working-directory header with the command's output and an exit-status pill — rather than a plain text block. The tool asks for this with the `terminal` card variant of its render intent (`dsh-tools`: `{ card: 'terminal', title, description?, cwd? }` from `presentCall`, `{ card: 'terminal', title?, output?, exitCode?, signal? }` from `presentResult`); the bridge maps it to the Zed `_meta` convention, gated on the client advertising `clientCapabilities._meta.terminal_output` in `initialize`: -- `tool_call`: `content:[…, {type:'terminal', terminalId}]` + `_meta.terminal_info.{terminal_id, cwd}` — the terminal id is the harness `callId`; the cwd is the tool's explicit absolute `terminal.cwd`, else a relative `terminal.cwd` resolved against the session cwd, else the session's workspace cwd (the bridge fills the default, since the pure tool presenter can't see it). Any pending `content` the tool supplied (e.g. bash's `description`) renders BEFORE the terminal block, so the description sits above the card. -- `tool_call_update`: `_meta.terminal_output.{terminal_id, data}` (the captured output) plus `_meta.terminal_exit.{terminal_id, exit_code | signal}` when the tool reported a structured exit. In terminal mode the update's `content` is OMITTED — an ACP `tool_call_update.content` REPLACES the call's content, so sending the fenced text block would clobber the terminal content block from the call. +- `tool_call`: `content:[…, {type:'terminal', terminalId}]` + `_meta.terminal_info.{terminal_id, cwd}` — the terminal id is the harness `callId`; the cwd is the card's explicit absolute `cwd`, else a relative `cwd` resolved against the session cwd, else the session's workspace cwd (the bridge fills the default, since the pure tool presenter can't see it). The card's `description` renders as a content block BEFORE the terminal block, so the description sits above the card. +- `tool_call_update`: `_meta.terminal_output.{terminal_id, data}` (the terminal card's `output`) plus `_meta.terminal_exit.{terminal_id, exit_code | signal}` when the card reported a structured `exitCode`/`signal`. In terminal mode the update's `content` is OMITTED — an ACP `tool_call_update.content` REPLACES the call's content, so sending the fenced text block would clobber the terminal content block from the call. -When the client does NOT advertise the capability, none of the `_meta`/terminal content is emitted: the `tool_call` shows the `description` content block and the `tool_call_update` carries the ` ```console ` text block (above) as the rendering — so a non-Zed client is never worse off. The `_meta` object is ACP's spec-blessed extensibility point; the specific `terminal_info`/`terminal_output`/`terminal_exit` keys are a Zed convention, not the ACP `terminal/create` sub-protocol (which would make the editor execute the command, bypassing `dsh-bash`'s sandbox/env-scrub/ownership/cwd). Live incremental streaming and command classification are follow-ups. See [the terminal-rendering RFC](../../../docs/rfc/implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.md). +When the client does NOT advertise the capability, none of the `_meta`/terminal content is emitted: the `tool_call` shows the `description` content block and the `tool_call_update` carries a ` ```console ` text block the bridge DERIVES by fencing the terminal result's `output` (the tool no longer double-encodes the fences) — so a non-Zed client is never worse off. The `_meta` object is ACP's spec-blessed extensibility point; the specific `terminal_info`/`terminal_output`/`terminal_exit` keys are a Zed convention, not the ACP `terminal/create` sub-protocol (which would make the editor execute the command, bypassing `dsh-bash`'s sandbox/env-scrub/ownership/cwd). Live incremental streaming and command classification are follow-ups. See [the terminal-rendering RFC](../../../docs/rfc/implemented/feature/2026-06-18-acp-terminal-and-tool-rendering.md) and [the render-intent-union RFC](../../../docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md). ## Settle-exactly-once diff --git a/packages/ui/acp/acp-feature-support.md b/packages/ui/acp/acp-feature-support.md index c39b518aba..4d14c79f5e 100644 --- a/packages/ui/acp/acp-feature-support.md +++ b/packages/ui/acp/acp-feature-support.md @@ -99,7 +99,7 @@ Tool-call presentation is **owned by each tool** (`presentCall` / `presentResult | `ToolCallKind` mapping | S | ✅ | ✅ | ✅ | `execute`/`read`/`edit`/`other` inferred from the tool; richer mapping possible. | | `ToolCallStatus` | S | ✅ | ✅ | ✅ | `in_progress` → `completed`/`failed`. | | `content` blocks | S | ✅ | ✅ | ✅ | Text content; the description renders above the card. | -| `diff` content | S | ❌ | ✅ | ✅ | No structured diff rendering for edits (would need a diffing edit tool + presenter). | +| `diff` content | S | ✅ | ✅ | ✅ | The `write`/`edit` tools declare a `diff` render intent (`presentCall` → `{ card: 'diff' }`); the bridge emits `{ type: 'diff', path, oldText, newText }` content blocks (call-time, args-derived — applied-hunk diffs are a follow-up). | | `terminal` content | S | ✅ | ✅ | ✅ | Via the Zed `_meta` terminal convention (see below), not the spec `terminal/*` sub-protocol. | | `locations` (follow-along) | S | ✅ | ✅ | ✅ | The `read`/`write`/`edit` tools emit `{ path, line? }` file-location hints via `presentCall`. | | `rawInput` | S | ✅ | ⚠️ | ✅ | Parsed tool args surfaced as `rawInput`. | @@ -147,7 +147,7 @@ Ranked by how commonly the reference adapters ship them and how much UX they unl 5. **Slash commands** (`available_commands_update`). 6. **MCP passthrough** (`mcpServers` on `session/new` + `mcpCapabilities`). 7. **Richer prompt content** — image / embedded `resource` blocks (needs a multimodal model path). -8. **Diff tool rendering** — structured `diff` content for edit tools (the `locations` follow-along hint already ships on `read`/`write`/`edit`). +8. **Applied-hunk diff rendering** — the `write`/`edit` diff cards ship (call-time, args-derived: whole `old_string`→`new_string`). Result-time structured-patch hunks with surrounding context (what `claude-agent-acp` derives from a PostToolUse hook) need a new result/event shape carrying the patch — a follow-up. 9. **Usage reporting** (`usage_update`) — the harness already records token usage internally (on `assistant/message`). 10. **Editor filesystem delegation** (`fs/read_text_file` / `fs/write_text_file`) — lets the agent see unsaved buffers; lower priority since the harness has direct disk access. diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index 255ca9c990..6d388e9f89 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -36,7 +36,7 @@ import type { Context } from 'cordis' import { Readable, Writable } from 'node:stream' import { randomUUID } from 'node:crypto' -import { isAbsolute, resolve as resolvePath } from 'node:path' +import { isAbsolute, relative as relativePath, resolve as resolvePath } from 'node:path' import Schema from 'schemastery' import { AgentSideConnection, @@ -62,12 +62,12 @@ import { type StopReason, } from '@agentclientprotocol/sdk' import type { ContentBlock } from '@deepseek-ai/dsh-llm' -import { CallId } from '@deepseek-ai/dsh-llm' +import { assertNever, CallId } from '@deepseek-ai/dsh-llm' import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent' import { AgentId } from '@deepseek-ai/dsh-agent' import { SessionId } from '@deepseek-ai/dsh-session' import type { SessionEvent, TodoItem, TurnEndReason } from '@deepseek-ai/dsh-session' -import type { ToolCallKind, ToolCallPresentation, ToolRegistry, ToolResultPresentation, ToolTerminal } from '@deepseek-ai/dsh-tools' +import type { ToolCallKind, ToolCallView, ToolRegistry, ToolResultView, TerminalResultView } from '@deepseek-ai/dsh-tools' // Side-effect type import: declaration-merges `ctx.sessionPersistence` onto // Context (the bridge injects it and reads `list()` for load cwd validation). import type {} from '@deepseek-ai/dsh-session-persistence' @@ -813,67 +813,13 @@ export function streamSessionEventUpdate( return } case 'tool/call': { - const present = presenter.call(event.data.callId, event.data.name, event.data.arguments) - // A terminal-rendered call (a shell command) gets a terminal CARD when the - // client supports it: a `terminal` content block plus `_meta.terminal_info` - // (the cwd header). Otherwise it is an ordinary tool_call and the output - // arrives as text on the result. See the terminal-rendering RFC. - const asTerminal = present.terminal !== undefined && terminal.enabled - // The tool's pending content (e.g. bash's `description`) renders ABOVE the - // card; when the card is shown, append the terminal block AFTER it so the - // description sits over the command (Zed renders content blocks in order). - // Without the capability the description still renders as the card's body. - const callContent: ({ type: 'content'; content: AcpContentBlock } | { type: 'terminal'; terminalId: string })[] = [ - ...present.content !== undefined ? toolResultContent(present.content) : [], - ...asTerminal ? [{ type: 'terminal' as const, terminalId: event.data.callId }] : [], - ] - notify({ - sessionId, - update: { - sessionUpdate: 'tool_call', - toolCallId: event.data.callId, - title: present.title, - kind: present.kind, - status: 'in_progress', - ...present.rawInput !== undefined ? { rawInput: present.rawInput } : {}, - ...present.locations !== undefined ? { locations: present.locations } : {}, - ...callContent.length > 0 ? { content: callContent } : {}, - ...asTerminal - ? { _meta: { terminal_info: { terminal_id: event.data.callId, cwd: terminalCwd(present.terminal, terminal.cwd) } } } - : {}, - }, - }) + const view = presenter.call(event.data.callId, event.data.name, event.data.arguments) + notify({ sessionId, update: toolCallUpdate(event.data.callId, view, terminal) }) return } case 'tool/result': { - const present = presenter.result(event.data.callId, event.data.content, event.data.isError) - const term = present.terminal - // When the call rendered as a terminal AND the client is capable, the output - // and exit status ride on `_meta` (the terminal card consumes them) and the - // text `content` is OMITTED: a `tool_call_update.content` REPLACES the call's - // content collection in Zed, so sending the fenced ```console block here - // would clobber the terminal content block the call installed. The incapable - // path keeps sending `content` (the fenced fallback is the only rendering). - const asTerminal = term?.output !== undefined && terminal.enabled - const terminalResultMeta = asTerminal - ? { - _meta: { - terminal_output: { terminal_id: event.data.callId, data: term.output }, - ...terminalExitMeta(event.data.callId, term), - }, - } - : {} - notify({ - sessionId, - update: { - sessionUpdate: 'tool_call_update', - toolCallId: event.data.callId, - status: event.data.isError ? 'failed' : 'completed', - ...asTerminal ? {} : { content: toolResultContent(present.content) }, - ...present.title !== undefined ? { title: present.title } : {}, - ...terminalResultMeta, - }, - }) + const view = presenter.result(event.data.callId, event.data.content, event.data.isError) + notify({ sessionId, update: toolResultUpdate(event.data.callId, view, event.data.isError, terminal) }) return } case 'todo/write': { @@ -916,46 +862,20 @@ export interface TerminalRendering { /** Default: terminal rendering off (the ` ```console ` text fallback path). */ const noTerminalRendering: TerminalRendering = { enabled: false, cwd: undefined } -/** - * Resolved pending-state presentation the bridge feeds into a `tool_call` - * update: a title is always present (tool name when the tool gives none), `kind` - * and `rawInput` are optional. - */ -interface ResolvedCallPresentation { - title: string - kind: ToolCallKind - rawInput?: unknown - /** UI content shown on the pending call (e.g. a bash description text block above the card). */ - content?: ContentBlock[] - /** Files this call reads/modifies (mapped to ACP `tool_call.locations`), for editor follow-along. */ - locations?: { path: string; line?: number }[] - /** Tool's request to render as a terminal (the pending side carries the cwd). */ - terminal?: ToolTerminal -} - -/** Resolved completed-state presentation fed into a `tool_call_update`. */ -interface ResolvedResultPresentation { - /** UI content for the result (harness blocks; the tool may reformat, else the raw result). */ - content: ContentBlock[] - /** Optional replacement title for the completed call. */ - title?: string - /** Tool's terminal output/exit for a terminal-rendered call (the result side). */ - terminal?: ToolTerminal -} - /** * Resolves tool-owned presentation for a session's tool-call events. A tool - * declares `presentCall`/`presentResult` (see `dsh-tools`); this looks them up - * by name in the registry and applies the generic fallback when a tool defines - * neither. + * declares `presentCall`/`presentResult` (see `dsh-tools`) returning a + * `card`-tagged {@link ToolCallView}/{@link ToolResultView}; this looks them up + * by name in the registry and applies a generic fallback when a tool defines + * neither. The returned view is what {@link streamSessionEventUpdate} switches on. * * The `tool/result` session event carries only `{ callId, content, isError }` — * NOT the tool name or args — so to call a tool's `presentResult` (which needs - * both), the presenter remembers each `tool/call`'s `{ name, args }` keyed by - * callId and looks it up on the matching result. The map is bridge-LOCAL (not a - * change to the event schema or a core service): one presenter per live session - * (and a throwaway per `session/load` replay), and each entry is removed when - * its result arrives. In the normal loop a `tool/call` is always followed by a + * both), the presenter remembers each `tool/call`'s `{ name, args, card }` keyed + * by callId and looks it up on the matching result. The map is bridge-LOCAL (not + * a change to the event schema or a core service): one presenter per live session + * (and a throwaway per `session/load` replay), and each entry is removed when its + * result arrives. In the normal loop a `tool/call` is always followed by a * `tool/result` (the registry turns even a thrown tool into an isError result), * so the map holds only currently-in-flight calls. The one exception is a step * torn down mid-tool (an abort between `tool/call` and `tool/result`), which can @@ -965,7 +885,7 @@ interface ResolvedResultPresentation { * stale entry's only cost is one map slot until the session ends. */ export class ToolPresenter { - private readonly pending = new Map() + private readonly pending = new Map() /** * @param tools the registry to resolve tool definitions by name. @@ -980,10 +900,10 @@ export class ToolPresenter { private readonly onError: (message: string) => void = () => {}, ) {} - /** Pending-state presentation for a `tool/call`; remembers `(name, args)` for the matching result. */ - call(callId: CallId, name: string, argsJson: string): ResolvedCallPresentation { + /** Pending-state render intent for a `tool/call`; remembers `(name, args, card)` for the matching result. */ + call(callId: CallId, name: string, argsJson: string): ToolCallView { const args = parseToolArguments(argsJson) - let present: ToolCallPresentation | undefined + let present: ToolCallView | undefined try { present = this.tools.get(name)?.presentCall?.(args) } catch (error: unknown) { @@ -991,35 +911,20 @@ export class ToolPresenter { this.onError(`acp: tool "${name}" presentCall threw, using generic presentation: ${String(error)}`) present = undefined } - if (present === undefined) { - // No tool-owned presentation: fall back to the tool name as the title and - // the full parsed args as the raw input (the pre-seam behavior). A generic - // call is never a terminal, so a later result can't emit terminal output. - this.pending.set(callId, { name, args, isTerminal: false }) - return { title: name, kind: toolKindFor(name), rawInput: args } - } - // Remember whether THIS call rendered as a terminal, so `result()` only emits - // terminal output/exit for a call that actually registered a terminal — a - // `presentResult().terminal` without a matching `presentCall().terminal` - // would otherwise orphan `_meta.terminal_output` to a terminal Zed never made. - this.pending.set(callId, { name, args, isTerminal: present.terminal !== undefined }) - return { - title: present.title, - kind: present.kind ?? 'other', - rawInput: present.rawInput, - ...present.content !== undefined ? { content: present.content } : {}, - ...present.locations !== undefined ? { locations: present.locations } : {}, - ...present.terminal !== undefined ? { terminal: present.terminal } : {}, - } + // No tool-owned presentation: fall back to the tool name as the title and the + // full parsed args as the raw input (the generic card). + const view: ToolCallView = present ?? { card: 'generic', title: name, kind: toolKindFor(name), rawInput: args } + this.pending.set(callId, { name, args, card: view.card }) + return view } - /** Completed-state presentation for a `tool/result`; consumes the remembered `(name, args)`. */ - result(callId: CallId, content: ContentBlock[], isError: boolean): ResolvedResultPresentation { + /** Completed-state render intent for a `tool/result`; consumes the remembered `(name, args, card)`. */ + result(callId: CallId, content: ContentBlock[], isError: boolean): ToolResultView { const call = this.pending.get(callId) this.pending.delete(callId) // No remembered call (unknown/late callId) → nothing to present from; raw content. - if (call === undefined) return { content } - let present: ToolResultPresentation | undefined + if (call === undefined) return { card: 'generic', content } + let present: ToolResultView | undefined try { present = this.tools.get(call.name)?.presentResult?.(call.args, { content, isError }) } catch (error: unknown) { @@ -1027,15 +932,16 @@ export class ToolPresenter { this.onError(`acp: tool "${call.name}" presentResult threw, using raw result: ${String(error)}`) present = undefined } - if (present === undefined) return { content } - return { - content: present.content ?? content, - ...present.title !== undefined ? { title: present.title } : {}, - // Only propagate terminal output/exit when the PENDING call registered a - // terminal (finding: orphan terminal output otherwise). A result-only - // terminal with no matching call-side terminal is dropped. - ...present.terminal !== undefined && call.isTerminal ? { terminal: present.terminal } : {}, - } + if (present === undefined) return { card: 'generic', content } + // Orphan guard: only honor a `terminal` result when the PENDING call was a + // terminal. A result-only terminal with no matching call-side terminal would + // orphan `_meta.terminal_output` to a terminal Zed never made — drop it back + // to the raw content. + if (present.card === 'terminal' && call.card !== 'terminal') return { card: 'generic', content } + // A generic result that reformats no content keeps the RAW result content + // (the tool replaced only the title); fill it so the card is never blanked. + if (present.card === 'generic' && present.content === undefined) return { ...present, content } + return present } } @@ -1045,8 +951,8 @@ export class ToolPresenter { * results pass their raw content through unchanged. */ export const nullToolPresenter: Pick = { - call: (_callId, name, argsJson) => ({ title: name, kind: toolKindFor(name), rawInput: parseToolArguments(argsJson) }), - result: (_callId, content) => ({ content }), + call: (_callId, name, argsJson) => ({ card: 'generic', title: name, kind: toolKindFor(name), rawInput: parseToolArguments(argsJson) }), + result: (_callId, content) => ({ card: 'generic', content }), } /** Map a harness tool name to an ACP ToolKind (best-effort; default `other`). */ @@ -1079,20 +985,118 @@ function toolResultContent(blocks: ContentBlock[]): { type: 'content'; content: return out } +/** The `session/update` payload for a `tool_call` / `tool_call_update`. */ +type ToolCallSessionUpdate = SessionNotification['update'] + +/** An ACP tool-call content block (a text/image `content`, a `diff`, or a `terminal`). */ +type AcpToolCallContent = + | { type: 'content'; content: AcpContentBlock } + | { type: 'diff'; path: string; oldText: string | null; newText: string } + | { type: 'terminal'; terminalId: string } + /** - * Resolve the terminal card's header cwd. The tool's `terminal.cwd` (a model - * `workdir`) wins when ABSOLUTE; a RELATIVE one resolves against the session - * cwd (matching how `dsh-tool-bash` resolves a relative workdir for execution, - * so the header matches where the command actually ran); when the tool gives no - * cwd, the session workspace cwd is the default. Returns `undefined` only when - * neither the tool nor the session supplies one (Zed then shows "current - * directory"). + * Relativize a file card's TITLE path against the session workspace cwd, so a + * card reads `Read src/foo.ts` rather than `/abs/proj/src/foo.ts` — matching the + * reference ACP adapter's `toDisplayPath`. Only the TITLE is relativized; the + * card's `locations`/`diff` paths stay RAW (the editor opens the real path). The + * pure tool presenter can't see the session cwd, so this happens here where the + * bridge knows it. The rewrite is an exact substring replace of the known raw + * path (a card carries the same path in `locations[0]`/`diffs[0]`), never a + * heuristic. A path outside the workspace, or an absent/relative session cwd, is + * left unchanged. */ -function terminalCwd(term: ToolTerminal | undefined, sessionCwd: string | undefined): string | undefined { - const toolCwd = term?.cwd - if (toolCwd === undefined) return sessionCwd - if (isAbsolute(toolCwd)) return toolCwd - return sessionCwd !== undefined ? resolvePath(sessionCwd, toolCwd) : toolCwd +function displayTitle(title: string, rawPath: string | undefined, sessionCwd: string | undefined): string { + if (rawPath === undefined || sessionCwd === undefined || !isAbsolute(rawPath) || !isAbsolute(sessionCwd)) return title + const rel = relativePath(sessionCwd, rawPath) + // `relative` returns a `..`-prefixed path for a target outside the workspace; + // only relativize paths that stay inside it (and never to the empty string). + if (rel.length === 0 || rel.startsWith('..')) return title + return title.split(rawPath).join(rel) +} + +/** + * Resolve the terminal card's header cwd. A `TerminalCallView.cwd` (a model + * `workdir`) wins when ABSOLUTE; a RELATIVE one resolves against the session cwd + * (matching how `dsh-tool-bash` resolves a relative workdir for execution, so the + * header matches where the command actually ran); when the view gives no cwd, the + * session workspace cwd is the default. Returns `undefined` only when neither the + * view nor the session supplies one (Zed then shows "current directory"). + */ +function terminalCwd(viewCwd: string | undefined, sessionCwd: string | undefined): string | undefined { + if (viewCwd === undefined) return sessionCwd + if (isAbsolute(viewCwd)) return viewCwd + return sessionCwd !== undefined ? resolvePath(sessionCwd, viewCwd) : viewCwd +} + +/** + * Build the `tool_call` (pending) `session/update` from a tool's render intent. + * Switches on `view.card`: a `generic` card maps title/kind/rawInput/content/ + * locations; a `diff` card emits `{ type: 'diff' }` content blocks (the editor's + * inline diff) plus follow-along locations; a `terminal` card renders as a + * terminal when the client is capable (a `terminal` content block + the + * `_meta.terminal_info` cwd header) and otherwise falls back to a generic execute + * card whose body is the description. File-card titles are relativized against the + * session cwd (see {@link displayTitle}). + */ +function toolCallUpdate(callId: CallId, view: ToolCallView, terminal: TerminalRendering): ToolCallSessionUpdate { + switch (view.card) { + case 'generic': + return { + sessionUpdate: 'tool_call', + toolCallId: callId, + // Relativize the title against the session cwd when the card carries a + // file location (a read/file card); a location-less card (bash, todo) + // has no path to relativize, so the title is used as-is. + title: displayTitle(view.title, view.locations?.[0]?.path, terminal.cwd), + kind: view.kind ?? 'other', + status: 'in_progress', + ...view.rawInput !== undefined ? { rawInput: view.rawInput } : {}, + ...view.locations !== undefined ? { locations: view.locations } : {}, + ...view.content !== undefined && view.content.length > 0 ? { content: toolResultContent(view.content) } : {}, + } + case 'diff': { + const rawPath = view.locations?.[0]?.path ?? view.diffs[0]?.path + const content: AcpToolCallContent[] = view.diffs.map(d => ({ type: 'diff', path: d.path, oldText: d.oldText, newText: d.newText })) + return { + sessionUpdate: 'tool_call', + toolCallId: callId, + title: displayTitle(view.title, rawPath, terminal.cwd), + kind: 'edit', + status: 'in_progress', + ...view.locations !== undefined ? { locations: view.locations } : {}, + ...content.length > 0 ? { content } : {}, + } + } + case 'terminal': { + // A terminal-rendered call gets a terminal CARD when the client supports it: + // the description renders ABOVE the card, then the terminal block, plus + // `_meta.terminal_info` (the cwd header). Without the capability it is an + // ordinary execute card whose body is the description and whose rawInput is + // the command; the output arrives as text on the result. + const asTerminal = terminal.enabled + const description: AcpToolCallContent[] = view.description !== undefined + ? [{ type: 'content', content: { type: 'text', text: view.description } }] + : [] + const content: AcpToolCallContent[] = [ + ...description, + ...asTerminal ? [{ type: 'terminal' as const, terminalId: callId }] : [], + ] + return { + sessionUpdate: 'tool_call', + toolCallId: callId, + title: view.title, + kind: 'execute', + status: 'in_progress', + rawInput: view.title, + ...content.length > 0 ? { content } : {}, + ...asTerminal + ? { _meta: { terminal_info: { terminal_id: callId, cwd: terminalCwd(view.cwd, terminal.cwd) } } } + : {}, + } + } + default: + return assertNever(view, 'ToolCallView.card') + } } /** The `terminal_exit` `_meta` entry for a completed terminal call. */ @@ -1102,12 +1106,60 @@ interface TerminalExitMeta { /** * Build the optional `terminal_exit` portion of a `tool_call_update`'s `_meta` - * from the tool's terminal result: a `signal` death yields `{signal}`, an - * `exitCode` yields `{exit_code}`, and neither yields nothing (the card simply - * shows no exit pill). Spread into the `_meta` object alongside `terminal_output`. + * from a terminal result: a `signal` death yields `{signal}`, an `exitCode` + * yields `{exit_code}`, and neither yields nothing (the card simply shows no exit + * pill). Spread into the `_meta` object alongside `terminal_output`. */ -function terminalExitMeta(callId: string, term: ToolTerminal): TerminalExitMeta { - if (term.signal !== undefined) return { terminal_exit: { terminal_id: callId, signal: term.signal } } - if (term.exitCode !== undefined) return { terminal_exit: { terminal_id: callId, exit_code: term.exitCode } } +function terminalExitMeta(callId: string, view: TerminalResultView): TerminalExitMeta { + if (view.signal !== undefined) return { terminal_exit: { terminal_id: callId, signal: view.signal } } + if (view.exitCode !== undefined) return { terminal_exit: { terminal_id: callId, exit_code: view.exitCode } } return {} } + +/** + * Build the `tool_call_update` (completed) `session/update` from a result render + * intent. A `generic` result sends its reformatted content (or the raw result); + * a `terminal` result rides its output/exit on `_meta` when the client is capable + * (the terminal card consumes them and `content` is OMITTED — a + * `tool_call_update.content` REPLACES the call's content collection in Zed, so + * re-sending would clobber the terminal block the call installed) and otherwise + * derives the fenced ```console fallback from `output`. + */ +function toolResultUpdate(callId: CallId, view: ToolResultView, isError: boolean, terminal: TerminalRendering): ToolCallSessionUpdate { + const status = isError ? 'failed' as const : 'completed' as const + if (view.card === 'terminal') { + const output = view.output ?? '' + if (terminal.enabled) { + return { + sessionUpdate: 'tool_call_update', + toolCallId: callId, + status, + ...view.title !== undefined ? { title: view.title } : {}, + _meta: { + terminal_output: { terminal_id: callId, data: output }, + ...terminalExitMeta(callId, view), + }, + } + } + // No terminal capability: the bridge derives the fenced ```console fallback. + const fenced = `\`\`\`console\n${output.replace(/\n+$/, '')}\n\`\`\`` + return { + sessionUpdate: 'tool_call_update', + toolCallId: callId, + status, + content: [{ type: 'content', content: { type: 'text', text: fenced } }], + ...view.title !== undefined ? { title: view.title } : {}, + } + } + // The presenter fills a generic result's content from the raw result, so + // `content` is always defined here; the guard keeps this total for a + // directly-constructed view. + return { + sessionUpdate: 'tool_call_update', + toolCallId: callId, + status, + /* v8 ignore next -- content always defined via the presenter (see above) */ + ...view.content !== undefined ? { content: toolResultContent(view.content) } : {}, + ...view.title !== undefined ? { title: view.title } : {}, + } +} diff --git a/packages/ui/acp/tests/stream-update.spec.ts b/packages/ui/acp/tests/stream-update.spec.ts index 9e1578c8c1..85e21d19a2 100644 --- a/packages/ui/acp/tests/stream-update.spec.ts +++ b/packages/ui/acp/tests/stream-update.spec.ts @@ -163,7 +163,7 @@ describe('todosToPlan', () => { }) describe('ToolPresenter (tool-owned presentation via the tool registry)', () => { - /** A tool whose presentCall/presentResult mirror what tool-bash declares. */ + /** A tool whose presentCall/presentResult return generic-card views. */ const bashLike: ToolDefinition = { name: 'bash', description: 'run a command', @@ -171,9 +171,10 @@ describe('ToolPresenter (tool-owned presentation via the tool registry)', () => execute: async () => [], presentCall: (args: unknown) => { const a = args as { command: string; description: string } - return { title: a.description, kind: 'execute', rawInput: a.command } + return { card: 'generic', title: a.description, kind: 'execute', rawInput: a.command } }, presentResult: (_args: unknown, result: { content: { type: string }[] }) => ({ + card: 'generic', content: [{ type: 'text', text: `wrapped:${result.content.length}` }], }), } @@ -247,8 +248,8 @@ describe('ToolPresenter (tool-owned presentation via the tool registry)', () => description: 'm', parameters: {}, execute: async () => [], - presentCall: () => ({ title: 'Doing a thing' }), - presentResult: () => ({ title: 'Did the thing' }), + presentCall: () => ({ card: 'generic', title: 'Doing a thing' }), + presentResult: () => ({ card: 'generic', title: 'Did the thing' }), } const presenter = new ToolPresenter(registryOf(minimal)) const updates = updatesWith( @@ -336,11 +337,30 @@ describe('ToolPresenter (tool-owned presentation via the tool registry)', () => expect(updates[1]).toMatchObject({ sessionUpdate: 'tool_call_update', content: [{ type: 'content', content: { type: 'text', text: 'raw' } }] }) }) - it('forwards a tool-owned `locations` onto the wire tool_call (REAL fs read/edit tools)', async () => { + it('an unknown render-intent card throws via the exhaustiveness guard (closed union)', () => { + // The bridge switches on `view.card` and ends with assertNever: a rogue card + // (only reachable by a cast — the union is closed) must throw, so adding a + // real variant later fails to compile at the switch instead of silently + // dropping the card. + const rogue: ToolDefinition = { + name: 'rogue', + description: 'r', + parameters: {}, + execute: async () => [], + // A card value outside the union — forced with a cast (no valid input reaches this). + presentCall: () => ({ card: 'chart', title: 'nope' }) as unknown as ReturnType>, + } + const presenter = new ToolPresenter(registryOf(rogue)) + expect(() => updatesWith(presenter, evt('tool/call', { + turn: 1, step: 1, callId: CallId('c1'), name: 'rogue', arguments: '{}', + }))).toThrow('unreachable variant') + }) + + it('forwards fs-tool render intents onto the wire (REAL read → generic locations, edit → diff content)', async () => { // Use the SHIPPING fs tools (not a stand-in), booted through their real // plugins, so the wire tool_call carries the actual presentCall output — - // including `locations` for editor follow-along. (AGENTS.md "prefer the real - // implementation over a mock".) + // read's follow-along `locations` and edit's `diff` content block. (AGENTS.md + // "prefer the real implementation over a mock".) const ctx = new Context() await ctx.plugin(SystemPrompt) await ctx.plugin(ToolRegistry) @@ -352,44 +372,50 @@ describe('ToolPresenter (tool-owned presentation via the tool registry)', () => turn: 1, step: 1, callId: CallId('r1'), name: 'read', arguments: JSON.stringify({ file_path: 'src/a.ts', offset: 12 }), })) + // A generic card: the read window is in the title, the offset drives the + // follow-along location line. No rawInput (the window lives in the title). expect(readCall).toMatchObject({ - sessionUpdate: 'tool_call', toolCallId: 'r1', title: 'Read src/a.ts', kind: 'read', - rawInput: 'offset 12', locations: [{ path: 'src/a.ts', line: 12 }], + sessionUpdate: 'tool_call', toolCallId: 'r1', title: 'Read src/a.ts (from line 12)', kind: 'read', + locations: [{ path: 'src/a.ts', line: 12 }], }) + expect((readCall as { rawInput?: unknown }).rawInput).toBeUndefined() const [editCall] = updatesWith(presenter, evt('tool/call', { turn: 1, step: 1, callId: CallId('e1'), name: 'edit', arguments: JSON.stringify({ file_path: 'src/b.ts', old_string: 'x', new_string: 'y' }), })) + // A diff card: `edit` kind, a `{ type: 'diff' }` content block carrying the + // literal old→new replacement, plus the follow-along location. expect(editCall).toMatchObject({ sessionUpdate: 'tool_call', toolCallId: 'e1', title: 'Edit src/b.ts', kind: 'edit', locations: [{ path: 'src/b.ts' }], + content: [{ type: 'diff', path: 'src/b.ts', oldText: 'x', newText: 'y' }], }) await ctx.fiber.dispose() }) }) describe('terminal-card mapping (capability-gated)', () => { - // A tool that asks to render as a terminal — a stand-in for tool-bash's shape, - // letting us drive the bridge's terminal mapping without the real executor. - type CallTerm = { cwd?: string } | undefined - type ResultTerm = { output?: string; exitCode?: number; signal?: string } | undefined - const termTool = (callTerminal: CallTerm, resultTerminal: ResultTerm): ToolDefinition => ({ + // A tool that renders as a terminal — a stand-in for tool-bash's shape, letting + // us drive the bridge's terminal mapping without the real executor. `callCard` + // selects a terminal call view (optionally with a cwd) or a generic one (for the + // orphan-guard test); `resultTerminal` is the terminal result view's output/exit. + type CallCard = { card: 'terminal'; cwd?: string } | { card: 'generic' } + type ResultTerm = { title?: string; output?: string; exitCode?: number; signal?: string } + const termTool = (callCard: CallCard, resultTerminal: ResultTerm): ToolDefinition => ({ name: 'bash', description: 'run a command', parameters: {}, execute: async () => [], - presentCall: (args: unknown) => ({ - title: (args as { command: string }).command, - kind: 'execute', - rawInput: (args as { command: string }).command, - content: [{ type: 'text', text: (args as { description: string }).description }], - ...callTerminal !== undefined ? { terminal: callTerminal } : {}, - }), - presentResult: () => ({ - content: [{ type: 'text', text: 'fallback' }], - ...resultTerminal !== undefined ? { terminal: resultTerminal } : {}, - }), + presentCall: (args: unknown) => { + const command = (args as { command: string }).command + const description = (args as { description: string }).description + if (callCard.card === 'terminal') { + return { card: 'terminal', title: command, description, ...callCard.cwd !== undefined ? { cwd: callCard.cwd } : {} } + } + return { card: 'generic', title: command, kind: 'execute', rawInput: command, content: [{ type: 'text', text: description }] } + }, + presentResult: () => ({ card: 'terminal', ...resultTerminal }), }) const callEvent = evt('tool/call', { turn: 1, step: 1, callId: CallId('c1'), name: 'bash', arguments: JSON.stringify({ command: 'echo hi', description: 'Greet' }) }) @@ -403,7 +429,7 @@ describe('terminal-card mapping (capability-gated)', () => { } it('capability ON: description content THEN terminal block; cwd from the session header when the tool gives none', () => { - const [call, update] = termUpdates(termTool({}, { output: 'hi\n', exitCode: 0 }), true, '/work/proj', callEvent, resultEvent) + const [call, update] = termUpdates(termTool({ card: 'terminal' }, { output: 'hi\n', exitCode: 0 }), true, '/work/proj', callEvent, resultEvent) expect(call).toMatchObject({ sessionUpdate: 'tool_call', content: [ @@ -422,33 +448,33 @@ describe('terminal-card mapping (capability-gated)', () => { }) it('capability ON: an ABSOLUTE tool cwd wins; a RELATIVE one resolves against the session cwd', () => { - const [absCall] = termUpdates(termTool({ cwd: '/explicit/abs' }, { output: 'x' }), true, '/work/proj', callEvent) + const [absCall] = termUpdates(termTool({ card: 'terminal', cwd: '/explicit/abs' }, { output: 'x' }), true, '/work/proj', callEvent) expect((absCall as unknown as { _meta: { terminal_info: { cwd: string } } })._meta.terminal_info.cwd).toBe('/explicit/abs') - const [relCall] = termUpdates(termTool({ cwd: 'sub/dir' }, { output: 'x' }), true, '/work/proj', callEvent) + const [relCall] = termUpdates(termTool({ card: 'terminal', cwd: 'sub/dir' }, { output: 'x' }), true, '/work/proj', callEvent) // Relative workdir resolved against the session cwd — the card header matches // where execution actually ran (tool-bash resolves the same way). expect((relCall as unknown as { _meta: { terminal_info: { cwd: string } } })._meta.terminal_info.cwd).toBe('/work/proj/sub/dir') // No session cwd to resolve against → the relative tool cwd is passed through as-is. - const [noSessionCwd] = termUpdates(termTool({ cwd: 'rel/only' }, { output: 'x' }), true, undefined, callEvent) + const [noSessionCwd] = termUpdates(termTool({ card: 'terminal', cwd: 'rel/only' }, { output: 'x' }), true, undefined, callEvent) expect((noSessionCwd as unknown as { _meta: { terminal_info: { cwd: string } } })._meta.terminal_info.cwd).toBe('rel/only') }) it('capability ON: a signal kill maps to terminal_exit.signal', () => { - const [, update] = termUpdates(termTool({}, { output: 'gone', signal: 'SIGKILL' }), true, '/w', callEvent, resultEvent) + const [, update] = termUpdates(termTool({ card: 'terminal' }, { output: 'gone', signal: 'SIGKILL' }), true, '/w', callEvent, resultEvent) expect((update as unknown as { _meta: { terminal_exit: unknown } })._meta.terminal_exit).toEqual({ terminal_id: 'c1', signal: 'SIGKILL' }) }) it('capability ON: a terminal result with output but NO exit/signal emits terminal_output and NO exit pill', () => { // A terminal-rendering tool that reports no structured exit (neither exitCode // nor signal) — the card shows output but no exit pill. - const [, update] = termUpdates(termTool({}, { output: 'partial' }), true, '/w', callEvent, resultEvent) + const [, update] = termUpdates(termTool({ card: 'terminal' }, { output: 'partial' }), true, '/w', callEvent, resultEvent) const meta = (update as unknown as { _meta: { terminal_output?: unknown; terminal_exit?: unknown } })._meta expect(meta.terminal_output).toEqual({ terminal_id: 'c1', data: 'partial' }) expect(meta.terminal_exit).toBeUndefined() }) - it('capability OFF: no terminal block or _meta; the description content and fenced result still render', () => { - const [call, update] = termUpdates(termTool({}, { output: 'hi\n' }), false, '/work/proj', callEvent, resultEvent) + it('capability OFF: no terminal block or _meta; the description content and the bridge-derived fenced result render', () => { + const [call, update] = termUpdates(termTool({ card: 'terminal' }, { output: 'hi\n' }), false, '/work/proj', callEvent, resultEvent) expect(call).toEqual({ sessionUpdate: 'tool_call', toolCallId: 'c1', @@ -458,24 +484,187 @@ describe('terminal-card mapping (capability-gated)', () => { rawInput: 'echo hi', content: [{ type: 'content', content: { type: 'text', text: 'Greet' } }], }) + // The bridge derives the fenced ```console fallback from the terminal output. expect(update).toEqual({ sessionUpdate: 'tool_call_update', toolCallId: 'c1', status: 'completed', - content: [{ type: 'content', content: { type: 'text', text: 'fallback' } }], + content: [{ type: 'content', content: { type: 'text', text: '```console\nhi\n```' } }], }) }) - it('orphan guard: a result-side terminal with NO call-side terminal is dropped (no orphan terminal_output)', () => { - // presentCall declares NO terminal, but presentResult returns one — the - // bridge must not emit _meta.terminal_output for a terminal Zed never made. - const [call, update] = termUpdates(termTool(undefined, { output: 'hi\n', exitCode: 0 }), true, '/w', callEvent, resultEvent) - // The call had no terminal → ordinary tool_call (description content, no _meta). + it('orphan guard: a result-side terminal with a GENERIC call is dropped (no orphan terminal_output)', () => { + // presentCall is a generic card, but presentResult returns a terminal view — + // the bridge must not emit _meta.terminal_output for a terminal Zed never made. + const [call, update] = termUpdates(termTool({ card: 'generic' }, { output: 'hi\n', exitCode: 0 }), true, '/w', callEvent, resultEvent) + // The call was generic → ordinary tool_call (description content, no _meta). expect((call as { _meta?: unknown })._meta).toBeUndefined() expect((call as { content: unknown }).content).toEqual([{ type: 'content', content: { type: 'text', text: 'Greet' } }]) - // The result falls back to text content; NO terminal _meta. + // The result falls back to the RAW result content (the tool/result event's text); NO terminal _meta. expect((update as { _meta?: unknown })._meta).toBeUndefined() - expect((update as { content: unknown }).content).toEqual([{ type: 'content', content: { type: 'text', text: 'fallback' } }]) + expect((update as { content: unknown }).content).toEqual([{ type: 'content', content: { type: 'text', text: 'hi\n' } }]) + }) + + it('capability ON: a terminal result title replaces the completed-card title; missing output emits empty data', () => { + // A terminal result MAY carry a replacement title and MAY omit output (a run + // that produced nothing) — the _meta carries empty data, not a dropped key. + const [, update] = termUpdates(termTool({ card: 'terminal' }, { title: 'Ran echo', exitCode: 0 }), true, '/w', callEvent, resultEvent) + expect(update).toEqual({ + sessionUpdate: 'tool_call_update', + toolCallId: 'c1', + status: 'completed', + title: 'Ran echo', + _meta: { terminal_output: { terminal_id: 'c1', data: '' }, terminal_exit: { terminal_id: 'c1', exit_code: 0 } }, + }) + }) + + it('capability OFF: a terminal result title rides on the fenced fallback update', () => { + const [, update] = termUpdates(termTool({ card: 'terminal' }, { title: 'Ran echo', output: 'hi\n' }), false, '/w', callEvent, resultEvent) + expect(update).toEqual({ + sessionUpdate: 'tool_call_update', + toolCallId: 'c1', + status: 'completed', + content: [{ type: 'content', content: { type: 'text', text: '```console\nhi\n```' } }], + title: 'Ran echo', + }) + }) + + it('a terminal call with NO description and NO capability is a bare execute card (no content key)', () => { + // A terminal view whose presentCall omits `description`, with the capability + // OFF: no description block and no terminal block → the card carries no content. + const noDesc: ToolDefinition = { + name: 'bash', + description: 'run a command', + parameters: {}, + execute: async () => [], + presentCall: (args: unknown) => ({ card: 'terminal', title: (args as { command: string }).command }), + } + const [call] = termUpdates(noDesc, false, undefined, callEvent) + expect(call).toEqual({ + sessionUpdate: 'tool_call', + toolCallId: 'c1', + title: 'echo hi', + kind: 'execute', + status: 'in_progress', + rawInput: 'echo hi', + }) + }) +}) + +describe('diff-card mapping', () => { + // A stand-in diff tool, letting us drive the bridge's diff arm across shapes + // the shipping fs tools don't emit (no locations, empty diffs). + const diffTool = (view: unknown): ToolDefinition => ({ + name: 'writer', + description: 'writes a file', + parameters: {}, + execute: async () => [], + presentCall: () => view as ReturnType>, + }) + function callUpdate(tool: ToolDefinition, cwd: string | undefined): SessionNotification['update'] { + const presenter = new ToolPresenter(registryOf(tool)) + const out: SessionNotification['update'][] = [] + streamSessionEventUpdate( + SessionId('s1'), + evt('tool/call', { turn: 1, step: 1, callId: CallId('c1'), name: 'writer', arguments: '{}' }), + n => out.push(n.update), + presenter, + { enabled: false, cwd }, + ) + return out[0]! + } + + it('a diff with NO locations relativizes the title off the first diff path; omits the locations key', () => { + const update = callUpdate(diffTool({ card: 'diff', title: 'Write /work/proj/a.txt', diffs: [{ path: '/work/proj/a.txt', oldText: null, newText: 'x' }] }), '/work/proj') + expect(update).toEqual({ + sessionUpdate: 'tool_call', + toolCallId: 'c1', + title: 'Write a.txt', + kind: 'edit', + status: 'in_progress', + content: [{ type: 'diff', path: '/work/proj/a.txt', oldText: null, newText: 'x' }], + }) + }) + + it('a diff with an EMPTY diffs array omits the content key (no diff blocks to send)', () => { + const update = callUpdate(diffTool({ card: 'diff', title: 'Write nothing', diffs: [] }), undefined) + expect(update).toEqual({ + sessionUpdate: 'tool_call', + toolCallId: 'c1', + title: 'Write nothing', + kind: 'edit', + status: 'in_progress', + }) + }) +}) + +describe('relative-path display titles (bridge relativizes the title against the session cwd)', () => { + // The bridge relativizes a file card's TITLE against the session workspace cwd + // (mirroring the reference adapter's toDisplayPath), while leaving locations/ + // diff paths RAW. Drive it with the REAL fs tools so the title/locations come + // from the shipping presentCall, and pass an ABSOLUTE file path (which a real + // editor forwards). The presenter is pure/args-only; the cwd is known only here. + async function fsCtx(): Promise { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(FsLocal) + await ctx.plugin(ToolFs) + return ctx + } + function callUpdate(ctx: Context, sessionCwd: string | undefined, name: string, args: unknown): SessionNotification['update'] { + const presenter = new ToolPresenter(ctx.tools) + const out: SessionNotification['update'][] = [] + streamSessionEventUpdate( + SessionId('s1'), + evt('tool/call', { turn: 1, step: 1, callId: CallId('c1'), name, arguments: JSON.stringify(args) }), + n => out.push(n.update), + presenter, + { enabled: false, cwd: sessionCwd }, + ) + return out[0]! + } + + it('read: an absolute path inside the workspace relativizes the TITLE; the location path stays absolute', async () => { + const ctx = await fsCtx() + const update = callUpdate(ctx, '/work/proj', 'read', { file_path: '/work/proj/src/a.ts', offset: 5 }) + expect(update).toMatchObject({ + title: 'Read src/a.ts (from line 5)', + locations: [{ path: '/work/proj/src/a.ts', line: 5 }], + }) + await ctx.fiber.dispose() + }) + + it('edit: the diff TITLE relativizes; the diff/location paths stay absolute (the editor opens the real path)', async () => { + const ctx = await fsCtx() + const update = callUpdate(ctx, '/work/proj', 'edit', { file_path: '/work/proj/src/b.ts', old_string: 'x', new_string: 'y' }) + expect(update).toMatchObject({ + title: 'Edit src/b.ts', + locations: [{ path: '/work/proj/src/b.ts' }], + content: [{ type: 'diff', path: '/work/proj/src/b.ts', oldText: 'x', newText: 'y' }], + }) + await ctx.fiber.dispose() + }) + + it('a path OUTSIDE the workspace is left as-is (no `..` title)', async () => { + const ctx = await fsCtx() + const update = callUpdate(ctx, '/work/proj', 'read', { file_path: '/etc/passwd' }) + expect((update as { title: string }).title).toBe('Read /etc/passwd') + await ctx.fiber.dispose() + }) + + it('no session cwd → the absolute title is left unchanged', async () => { + const ctx = await fsCtx() + const update = callUpdate(ctx, undefined, 'read', { file_path: '/work/proj/src/a.ts' }) + expect((update as { title: string }).title).toBe('Read /work/proj/src/a.ts') + await ctx.fiber.dispose() + }) + + it('a relative path is passed through unchanged (already display-friendly)', async () => { + const ctx = await fsCtx() + const update = callUpdate(ctx, '/work/proj', 'read', { file_path: 'src/a.ts' }) + expect((update as { title: string }).title).toBe('Read src/a.ts') + await ctx.fiber.dispose() }) }) From af79ceea1c03e4ded615fb23cd73894cbf2f7a64 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 02:27:20 +0800 Subject: [PATCH 16/32] fix(acp): exhaustive result-card switch + tighten display-path guard MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Address the render-intent-union review: - toolResultUpdate branched on `if (card === 'terminal')` with a generic fallthrough; ToolResultView is a closed union, so make it an exhaustive `switch (view.card)` ending in assertNever (matching the call-side renderer and the § Conventions closed-union rule). Adding a result card later now fails to compile at the switch. Regression test: a rogue result card throws. - displayTitle's `rel.startsWith('..')` guard mis-rejected an in-workspace target whose relative form merely begins with the chars `..` (e.g. `..cache/x`, a real sibling name), leaving its title absolute. Test for a `..` SEGMENT (`..` alone or `..…`) so such paths relativize, matching claude-agent-acp's `cwd + sep` prefix check. Regression test added. --- packages/ui/acp/src/index.ts | 70 ++++++++++++--------- packages/ui/acp/tests/stream-update.spec.ts | 31 +++++++++ 2 files changed, 70 insertions(+), 31 deletions(-) diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index 6d388e9f89..c01c004d91 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -36,7 +36,7 @@ import type { Context } from 'cordis' import { Readable, Writable } from 'node:stream' import { randomUUID } from 'node:crypto' -import { isAbsolute, relative as relativePath, resolve as resolvePath } from 'node:path' +import { isAbsolute, relative as relativePath, resolve as resolvePath, sep as pathSep } from 'node:path' import Schema from 'schemastery' import { AgentSideConnection, @@ -1008,9 +1008,12 @@ type AcpToolCallContent = function displayTitle(title: string, rawPath: string | undefined, sessionCwd: string | undefined): string { if (rawPath === undefined || sessionCwd === undefined || !isAbsolute(rawPath) || !isAbsolute(sessionCwd)) return title const rel = relativePath(sessionCwd, rawPath) - // `relative` returns a `..`-prefixed path for a target outside the workspace; - // only relativize paths that stay inside it (and never to the empty string). - if (rel.length === 0 || rel.startsWith('..')) return title + // Only relativize a target that stays INSIDE the workspace. `relative` prefixes + // a `..` SEGMENT for a target above the cwd — test for the segment (`..` alone + // or `..…`), NOT a bare `..` char prefix, so a sibling like `..cache/x` + // (a real in-workspace name) still relativizes. Never relativize to the empty + // string (rawPath === cwd — a non-file target). + if (rel.length === 0 || rel === '..' || rel.startsWith(`..${pathSep}`)) return title return title.split(rawPath).join(rel) } @@ -1127,39 +1130,44 @@ function terminalExitMeta(callId: string, view: TerminalResultView): TerminalExi */ function toolResultUpdate(callId: CallId, view: ToolResultView, isError: boolean, terminal: TerminalRendering): ToolCallSessionUpdate { const status = isError ? 'failed' as const : 'completed' as const - if (view.card === 'terminal') { - const output = view.output ?? '' - if (terminal.enabled) { + switch (view.card) { + case 'terminal': { + const output = view.output ?? '' + if (terminal.enabled) { + return { + sessionUpdate: 'tool_call_update', + toolCallId: callId, + status, + ...view.title !== undefined ? { title: view.title } : {}, + _meta: { + terminal_output: { terminal_id: callId, data: output }, + ...terminalExitMeta(callId, view), + }, + } + } + // No terminal capability: the bridge derives the fenced ```console fallback. + const fenced = `\`\`\`console\n${output.replace(/\n+$/, '')}\n\`\`\`` return { sessionUpdate: 'tool_call_update', toolCallId: callId, status, + content: [{ type: 'content', content: { type: 'text', text: fenced } }], ...view.title !== undefined ? { title: view.title } : {}, - _meta: { - terminal_output: { terminal_id: callId, data: output }, - ...terminalExitMeta(callId, view), - }, } } - // No terminal capability: the bridge derives the fenced ```console fallback. - const fenced = `\`\`\`console\n${output.replace(/\n+$/, '')}\n\`\`\`` - return { - sessionUpdate: 'tool_call_update', - toolCallId: callId, - status, - content: [{ type: 'content', content: { type: 'text', text: fenced } }], - ...view.title !== undefined ? { title: view.title } : {}, - } - } - // The presenter fills a generic result's content from the raw result, so - // `content` is always defined here; the guard keeps this total for a - // directly-constructed view. - return { - sessionUpdate: 'tool_call_update', - toolCallId: callId, - status, - /* v8 ignore next -- content always defined via the presenter (see above) */ - ...view.content !== undefined ? { content: toolResultContent(view.content) } : {}, - ...view.title !== undefined ? { title: view.title } : {}, + case 'generic': + return { + sessionUpdate: 'tool_call_update', + toolCallId: callId, + status, + // The presenter fills a generic result's content from the raw result, so + // `content` is always defined here; the guard keeps this total for a + // directly-constructed view. + /* v8 ignore next -- content always defined via the presenter (see above) */ + ...view.content !== undefined ? { content: toolResultContent(view.content) } : {}, + ...view.title !== undefined ? { title: view.title } : {}, + } + default: + return assertNever(view, 'ToolResultView.card') } } diff --git a/packages/ui/acp/tests/stream-update.spec.ts b/packages/ui/acp/tests/stream-update.spec.ts index 85e21d19a2..9c1898b3c1 100644 --- a/packages/ui/acp/tests/stream-update.spec.ts +++ b/packages/ui/acp/tests/stream-update.spec.ts @@ -356,6 +356,26 @@ describe('ToolPresenter (tool-owned presentation via the tool registry)', () => }))).toThrow('unreachable variant') }) + it('an unknown render-intent RESULT card throws via the exhaustiveness guard (closed union)', () => { + // The result-side renderer is also an exhaustive switch + assertNever: a rogue + // result card (only reachable by a cast) must throw, so adding a real result + // variant later fails to compile at the switch. + const rogue: ToolDefinition = { + name: 'rogue', + description: 'r', + parameters: {}, + execute: async () => [], + presentCall: () => ({ card: 'generic', title: 'r' }), + presentResult: () => ({ card: 'chart' }) as unknown as ReturnType>, + } + const presenter = new ToolPresenter(registryOf(rogue)) + expect(() => updatesWith( + presenter, + evt('tool/call', { turn: 1, step: 1, callId: CallId('c1'), name: 'rogue', arguments: '{}' }), + evt('tool/result', { turn: 1, step: 1, callId: CallId('c1'), content: [{ type: 'text', text: 'x' }], isError: false }), + )).toThrow('unreachable variant') + }) + it('forwards fs-tool render intents onto the wire (REAL read → generic locations, edit → diff content)', async () => { // Use the SHIPPING fs tools (not a stand-in), booted through their real // plugins, so the wire tool_call carries the actual presentCall output — @@ -653,6 +673,17 @@ describe('relative-path display titles (bridge relativizes the title against the await ctx.fiber.dispose() }) + it('an in-workspace file whose relative form starts with `..` chars (a sibling name) still relativizes', async () => { + // `/work/proj/..cache/x` is INSIDE the workspace — its relative form + // `..cache/x` begins with the chars `..` but is NOT a parent segment. The + // guard tests for a `..` SEGMENT, so this relativizes (matching the reference + // adapter, which accepts any target under `cwd + sep`). + const ctx = await fsCtx() + const update = callUpdate(ctx, '/work/proj', 'read', { file_path: '/work/proj/..cache/x.ts' }) + expect((update as { title: string }).title).toBe('Read ..cache/x.ts') + await ctx.fiber.dispose() + }) + it('no session cwd → the absolute title is left unchanged', async () => { const ctx = await fsCtx() const update = callUpdate(ctx, undefined, 'read', { file_path: '/work/proj/src/a.ts' }) From 744130725110d4efe535094652ac2c2b87bdc088 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Fri, 3 Jul 2026 15:52:05 +0800 Subject: [PATCH 17/32] fix(web): open WebError.code to string, aligning with other seams The closed WebErrorCode union leaked fetch-transport details (redirect, too-large, content-type) into the seam's shared vocabulary and made web the only seam with a closed error-code union. Drop it and let WebError carry an open code: string like LlmError/SubagentError; document the codes grouped by owner (seam-neutral vs dsh-web-fetch-local transport). Addresses tianyicui's leaky-abstraction review comment on WebErrorCode. --- docs/cordis-catalog/events-and-services.md | 4 +- docs/core-data-structures/core.md | 2 +- docs/core-data-structures/web.md | 19 +------- packages/web/web/src/index.ts | 1 - packages/web/web/src/types.ts | 55 ++++++++-------------- scripts/type-equiv.manifest.json | 3 +- 6 files changed, 25 insertions(+), 59 deletions(-) diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index c3843f944d..1bb243afc8 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -309,7 +309,7 @@ Fired after the provider registry changes — a search or fetch provider was reg 'web/providers-change'(this: WebService): void ``` -Source: [`packages/web/web/src/index.ts:66`](../../packages/web/web/src/index.ts) +Source: [`packages/web/web/src/index.ts:65`](../../packages/web/web/src/index.ts) ## Services @@ -506,7 +506,7 @@ async search(request: WebSearchRequest, exec?: WebExecContext): Promise ``` -Source: [`packages/web/web/src/index.ts:106`](../../packages/web/web/src/index.ts) +Source: [`packages/web/web/src/index.ts:105`](../../packages/web/web/src/index.ts) ## Inherited tier (cordis core + loader/hmr/timer) diff --git a/docs/core-data-structures/core.md b/docs/core-data-structures/core.md index fdfbcfbbf4..b6ce3d060f 100644 --- a/docs/core-data-structures/core.md +++ b/docs/core-data-structures/core.md @@ -22,7 +22,7 @@ Everything else is documented on a **sub-page**, not here. The rule that draws t | [bash.md](bash.md) | the bash executor seam: `BashExecRequest`/`Spec`, `BashRunResult`, background `BashTask`s | | [compaction.md](compaction.md) | the compaction seam: the `compact/*` session events, `CompactionResult`, the `CompactService` interface | | [subagent.md](subagent.md) | the subagent seam: the named-provider registry, `SubagentStartRequest`/`Result`/`Run`, the start-time-vs-runtime capability split | -| [web.md](web.md) | the web access seam: `WebSearchRequest`/`Result`, `WebFetchRequest`/`Result`, `WebFetchBody`, provider/capability status, `WebErrorCode` | +| [web.md](web.md) | the web access seam: `WebSearchRequest`/`Result`, `WebFetchRequest`/`Result`, `WebFetchBody`, provider/capability status, `WebError` | > Type definitions on this page are pasted **verbatim** from source and drift-checked by `pnpm run verify-type-equiv` (see [development.md](../development.md#documenting-types-verbatim-ts-type-equiv)). Inline JSDoc is omitted for readability; follow the source link for the full contracts. diff --git a/docs/core-data-structures/web.md b/docs/core-data-structures/web.md index 43ed4e7aeb..1adde3bd75 100644 --- a/docs/core-data-structures/web.md +++ b/docs/core-data-structures/web.md @@ -95,24 +95,7 @@ Selection never depends on registration, config, or HMR order: a capability has ## Errors -`WebError extends HarnessError` ([core.md](core.md) error taxonomy) with a stable `WebErrorCode`. `WEB_DUPLICATE_PROVIDER` is a registration-time programming error (the analogue of `LlmService`'s `DUPLICATE_ADAPTER`); the `WEB_PROVIDER_*` selection codes and the fetch transport codes are execution outcomes. `WEB_PROVIDER_ERROR` is the catch-all for a provider's own failure surfaced through the seam, including network/transport failure (DNS, connection refused, TLS). - -```ts type-equiv -type WebErrorCode = - | 'WEB_PROVIDER_UNAVAILABLE' - | 'WEB_PROVIDER_CONFIGURED_MISSING' - | 'WEB_PROVIDER_CONFIGURED_UNAVAILABLE' - | 'WEB_PROVIDER_AMBIGUOUS' - | 'WEB_DUPLICATE_PROVIDER' - | 'WEB_INVALID_URL' - | 'WEB_BLOCKED_URL' - | 'WEB_REDIRECT_BLOCKED' - | 'WEB_FETCH_TOO_LARGE' - | 'WEB_FETCH_TIMEOUT' - | 'WEB_ABORTED' - | 'WEB_UNSUPPORTED_CONTENT_TYPE' - | 'WEB_PROVIDER_ERROR' -``` +`WebError extends HarnessError` ([core.md](core.md) error taxonomy) with a `code: string` (open, like every other seam's error — `LlmError`, `SubagentError`), not a closed union: a provider may raise its own codes without editing `dsh-web`, and consumers must tolerate an unknown code. The codes split by owner. Seam-neutral codes are raised by `WebService` selection and the shared contract: `WEB_PROVIDER_UNAVAILABLE`, `WEB_PROVIDER_CONFIGURED_MISSING`, `WEB_PROVIDER_CONFIGURED_UNAVAILABLE`, `WEB_PROVIDER_AMBIGUOUS`, `WEB_DUPLICATE_PROVIDER` (a registration-time programming error, the analogue of `LlmService`'s `DUPLICATE_ADAPTER`), `WEB_ABORTED`, and `WEB_PROVIDER_ERROR` (the catch-all for a provider's own failure surfaced through the seam, including network/transport failure — DNS, connection refused, TLS). Fetch-transport codes are owned by the `dsh-web-fetch-local` implementation and a different fetch backend need not raise them: `WEB_INVALID_URL`, `WEB_BLOCKED_URL`, `WEB_REDIRECT_BLOCKED`, `WEB_FETCH_TOO_LARGE`, `WEB_FETCH_TIMEOUT`, `WEB_UNSUPPORTED_CONTENT_TYPE`. ## The service diff --git a/packages/web/web/src/index.ts b/packages/web/web/src/index.ts index 172c1a0ecb..50150f6961 100644 --- a/packages/web/web/src/index.ts +++ b/packages/web/web/src/index.ts @@ -36,7 +36,6 @@ export { } from './types.ts' export type { WebCapabilityStatus, - WebErrorCode, WebExecContext, WebFetchBody, WebFetchProvider, diff --git a/packages/web/web/src/types.ts b/packages/web/web/src/types.ts index ec97101ae2..6f85787d1b 100644 --- a/packages/web/web/src/types.ts +++ b/packages/web/web/src/types.ts @@ -172,8 +172,19 @@ export interface WebFetchProvider { } /** - * Stable codes for {@link WebError}. Callers (hooks, tests, UI) route on these. + * Typed web error. Extends {@link HarnessError} so it carries a stable, + * machine-routable `code` (a `string`, like every other seam's error) and + * chains `cause`. `ToolRegistry.execute()` converts a thrown `WebError` into an + * error tool result whose structured metadata exposes the code, so callers + * (hooks, tests, UI) route on it. * + * The `code` is an open `string`, NOT a closed union: a provider may raise its + * own codes without editing this package, and a consumer must tolerate an + * unknown code (a future provider will introduce ones this file never named). + * The codes split by who owns them — seam-neutral codes any provider may see, + * versus codes specific to a single implementation: + * + * Seam-neutral (raised by `WebService` selection and the shared contract): * - `WEB_PROVIDER_UNAVAILABLE`: no provider configured and none usable. * - `WEB_PROVIDER_CONFIGURED_MISSING`: a configured id is not registered. * - `WEB_PROVIDER_CONFIGURED_UNAVAILABLE`: a configured id is registered but its @@ -182,44 +193,18 @@ export interface WebFetchProvider { * exist (selection refuses to pick by registration order). * - `WEB_DUPLICATE_PROVIDER`: a registration-time programming error — an id is * already registered for that capability kind. + * - `WEB_ABORTED`: the operation was aborted via `WebExecContext.signal`. + * - `WEB_PROVIDER_ERROR`: catch-all for a provider's own failure surfaced + * through the seam, including network/transport failure (DNS, connection + * refused, TLS). + * + * Fetch-transport codes (owned by the `dsh-web-fetch-local` implementation; a + * different fetch backend need not raise these and may raise its own): * - `WEB_INVALID_URL`: the fetch URL is malformed or not http(s). * - `WEB_BLOCKED_URL`: the fetch URL is rejected by policy (credentials in URL). * - `WEB_REDIRECT_BLOCKED`: a cross-origin redirect was refused. * - `WEB_FETCH_TOO_LARGE`: the response exceeded the byte/character cap. * - `WEB_FETCH_TIMEOUT`: the fetch exceeded its timeout. - * - `WEB_ABORTED`: the operation was aborted via `WebExecContext.signal`. * - `WEB_UNSUPPORTED_CONTENT_TYPE`: the response content type cannot be decoded. - * - `WEB_PROVIDER_ERROR`: catch-all for a provider's own failure surfaced through - * the seam, including network/transport failure (DNS, connection refused, TLS). */ -export type WebErrorCode = - | 'WEB_PROVIDER_UNAVAILABLE' - | 'WEB_PROVIDER_CONFIGURED_MISSING' - | 'WEB_PROVIDER_CONFIGURED_UNAVAILABLE' - | 'WEB_PROVIDER_AMBIGUOUS' - | 'WEB_DUPLICATE_PROVIDER' - | 'WEB_INVALID_URL' - | 'WEB_BLOCKED_URL' - | 'WEB_REDIRECT_BLOCKED' - | 'WEB_FETCH_TOO_LARGE' - | 'WEB_FETCH_TIMEOUT' - | 'WEB_ABORTED' - | 'WEB_UNSUPPORTED_CONTENT_TYPE' - | 'WEB_PROVIDER_ERROR' - -/** - * Typed web error. Extends {@link HarnessError} so it carries a stable - * {@link WebErrorCode} and chains `cause`. `dsh-web` owns this vocabulary so - * providers, the seam, and the tool layer raise the same codes instead of each - * inventing message strings. `ToolRegistry.execute()` converts a thrown - * `WebError` into an error tool result whose structured metadata exposes the - * code. - */ -export class WebError extends HarnessError { - override readonly code: WebErrorCode - - constructor(message: string, code: WebErrorCode, options?: ErrorOptions) { - super(message, code, options) - this.code = code - } -} +export class WebError extends HarnessError {} diff --git a/scripts/type-equiv.manifest.json b/scripts/type-equiv.manifest.json index 2a499580a7..ed8d342e28 100644 --- a/scripts/type-equiv.manifest.json +++ b/scripts/type-equiv.manifest.json @@ -58,7 +58,6 @@ { "doc": "docs/core-data-structures/web.md", "symbol": "WebFetchResult", "source": "packages/web/web/src/types.ts" }, { "doc": "docs/core-data-structures/web.md", "symbol": "WebFetchBody", "source": "packages/web/web/src/types.ts" }, { "doc": "docs/core-data-structures/web.md", "symbol": "WebProviderStatus", "source": "packages/web/web/src/types.ts" }, - { "doc": "docs/core-data-structures/web.md", "symbol": "WebCapabilityStatus", "source": "packages/web/web/src/types.ts" }, - { "doc": "docs/core-data-structures/web.md", "symbol": "WebErrorCode", "source": "packages/web/web/src/types.ts" } + { "doc": "docs/core-data-structures/web.md", "symbol": "WebCapabilityStatus", "source": "packages/web/web/src/types.ts" } ] } From 580496b72aa385ac15eed89db3e52f726a69fe94 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Fri, 3 Jul 2026 16:21:12 +0800 Subject: [PATCH 18/32] feat(web): expose exa/perplexity search tuning as config The Exa and Perplexity providers hard-coded request parameters that deployments should control while defaults are still unsettled. Exa gains searchType, numResults, and highlightsPerResult; Perplexity gains maxTokens (it previously sent none) and an optional searchRecency. Each follows the deepseek provider's shape: a defaulted Config field, a DEFAULT_* constant, and a positive-integer status() check for numeric limits. The call-level maxResults still flows through WebSearchRequest and wins over the configured default, keeping the seam layering intact. Addresses tianyicui's "make everything configurable" review comment. --- packages/web/web-search-exa/README.md | 5 +- packages/web/web-search-exa/src/index.ts | 28 +++++++-- packages/web/web-search-exa/src/provider.ts | 26 +++++++- packages/web/web-search-exa/src/types.ts | 4 +- packages/web/web-search-exa/tests/exa.e2e.ts | 9 ++- packages/web/web-search-exa/tests/exa.spec.ts | 59 ++++++++++++++++--- packages/web/web-search-perplexity/README.md | 2 + .../web/web-search-perplexity/src/index.ts | 22 +++++-- .../web/web-search-perplexity/src/provider.ts | 18 ++++++ .../tests/perplexity.e2e.ts | 3 +- .../tests/perplexity.spec.ts | 23 +++++++- 11 files changed, 172 insertions(+), 27 deletions(-) diff --git a/packages/web/web-search-exa/README.md b/packages/web/web-search-exa/README.md index 6485d64c60..0bc58d6559 100644 --- a/packages/web/web-search-exa/README.md +++ b/packages/web/web-search-exa/README.md @@ -10,6 +10,9 @@ This is an **implementation** package: it registers a provider into `ctx.web`, i |---|---|---| | `apiKey` | `$EXA_API_KEY` | Exa API key. Empty/absent → provider `status()` reports `missing-credential` (the seam reports `configured-unavailable`/`none`). | | `baseURL` | `https://api.exa.ai` | Endpoint base; `/search` is appended. An unparseable value makes `status()` report `misconfigured`. | +| `searchType` | `auto` | Retrieval mode sent as Exa's `type`: `auto` (Exa decides), `keyword`, or `neural`. | +| `numResults` | (unset) | Default result count when a request carries no `maxResults`. Unset sends no default. Must be a positive integer. | +| `highlightsPerResult` | `1` | Highlight sentences requested per result (Exa's `highlightsPerUrl`). Must be a positive integer. | ```yaml - id: web-search-exa @@ -20,4 +23,4 @@ This is an **implementation** package: it registers a provider into `ctx.web`, i ## Mapping -Exa returns a flat `results[]` and no generated answer, so `content` is omitted. Each result maps to a `WebSearchSource`: `url` ← `url`, `title` ← `title`, `snippet` ← the first non-empty `highlights[]` entry (a result with no highlight has no portable snippet and is dropped), `publishedAt` ← `publishedDate`. The provider passes `maxResults` through as Exa's `numResults` for a cost/latency optimization; the final bound is enforced by the seam. Provider failures (HTTP errors, network failure, unparseable or wrong-shape bodies) surface as `WebError` `WEB_PROVIDER_ERROR`; an aborted request surfaces as `WEB_ABORTED`. +Exa returns a flat `results[]` and no generated answer, so `content` is omitted. Each result maps to a `WebSearchSource`: `url` ← `url`, `title` ← `title`, `snippet` ← the first non-empty `highlights[]` entry (a result with no highlight has no portable snippet and is dropped), `publishedAt` ← `publishedDate`. A request's `maxResults` wins over the configured `numResults` default and is sent as Exa's `numResults` for a cost/latency optimization; the final bound is enforced by the seam. Provider failures (HTTP errors, network failure, unparseable or wrong-shape bodies) surface as `WebError` `WEB_PROVIDER_ERROR`; an aborted request surfaces as `WEB_ABORTED`. diff --git a/packages/web/web-search-exa/src/index.ts b/packages/web/web-search-exa/src/index.ts index f266474708..39a20b16a4 100644 --- a/packages/web/web-search-exa/src/index.ts +++ b/packages/web/web-search-exa/src/index.ts @@ -11,10 +11,17 @@ import type { Context } from 'cordis' import z from 'schemastery' import type {} from '@deepseek-ai/dsh-web' -import { ExaSearchProvider, EXA_DEFAULT_BASE_URL } from './provider.ts' +import { + ExaSearchProvider, + EXA_DEFAULT_BASE_URL, + EXA_DEFAULT_HIGHLIGHTS_PER_RESULT, + EXA_DEFAULT_SEARCH_TYPE, +} from './provider.ts' export { EXA_DEFAULT_BASE_URL, + EXA_DEFAULT_HIGHLIGHTS_PER_RESULT, + EXA_DEFAULT_SEARCH_TYPE, EXA_PROVIDER_ID, ExaSearchProvider, mapExaResponse, @@ -33,16 +40,29 @@ export interface Config { apiKey?: string /** Endpoint base; `/search` is appended. Defaults to the public API. */ baseURL?: string + /** Retrieval mode sent as Exa's `type`. Defaults to `auto`. */ + searchType?: 'auto' | 'keyword' | 'neural' + /** Default result count when a request carries no `maxResults`. Omitted = none. */ + numResults?: number + /** Highlight sentences requested per result. Defaults to 1. */ + highlightsPerResult?: number } export const Config: z = z.object({ apiKey: z.string(), baseURL: z.string(), + searchType: z.union(['auto', 'keyword', 'neural'] as const), + numResults: z.number().step(1).min(1), + highlightsPerResult: z.number().step(1).min(1), }) /** Register the Exa search provider with `ctx.web`. */ export function apply(ctx: Context, config: Config): void { - const apiKey = config.apiKey ?? process.env.EXA_API_KEY ?? '' - const baseURL = config.baseURL ?? EXA_DEFAULT_BASE_URL - ctx.web.registerSearchProvider(new ExaSearchProvider({ apiKey, baseURL })) + ctx.web.registerSearchProvider(new ExaSearchProvider({ + apiKey: config.apiKey ?? process.env.EXA_API_KEY ?? '', + baseURL: config.baseURL ?? EXA_DEFAULT_BASE_URL, + searchType: config.searchType ?? EXA_DEFAULT_SEARCH_TYPE, + highlightsPerResult: config.highlightsPerResult ?? EXA_DEFAULT_HIGHLIGHTS_PER_RESULT, + ...config.numResults !== undefined ? { numResults: config.numResults } : {}, + })) } diff --git a/packages/web/web-search-exa/src/provider.ts b/packages/web/web-search-exa/src/provider.ts index cfb41cf77f..f187f90344 100644 --- a/packages/web/web-search-exa/src/provider.ts +++ b/packages/web/web-search-exa/src/provider.ts @@ -28,6 +28,12 @@ export const EXA_PROVIDER_ID = 'exa' /** Default Exa search endpoint; `/search` is the operation. */ export const EXA_DEFAULT_BASE_URL = 'https://api.exa.ai' +/** Default retrieval mode: let Exa pick between keyword and neural search. */ +export const EXA_DEFAULT_SEARCH_TYPE = 'auto' + +/** Default number of highlight sentences requested per result. */ +export const EXA_DEFAULT_HIGHLIGHTS_PER_RESULT = 1 + /** Attribution header sent on every request. Bump with the package version. */ const USER_AGENT = 'deepseek-harness/0.0.1' @@ -36,6 +42,12 @@ export interface ExaSearchProviderOptions { apiKey: string /** Endpoint base; `/search` is appended. */ baseURL: string + /** Retrieval mode sent as Exa's `type`. */ + searchType: 'auto' | 'keyword' | 'neural' + /** Default result count when a request carries no `maxResults`. */ + numResults?: number + /** Highlight sentences requested per result (Exa's `highlightsPerUrl`). */ + highlightsPerResult: number } /** @@ -73,10 +85,14 @@ export class ExaSearchProvider implements WebSearchProvider { status(): WebProviderStatus { if (this.options.apiKey.length === 0) return { available: false, reason: 'missing-credential' } if (!isValidBaseUrl(this.options.baseURL)) return { available: false, reason: 'misconfigured' } + if (!isPositiveInteger(this.options.highlightsPerResult)) return { available: false, reason: 'misconfigured' } + if (this.options.numResults !== undefined && !isPositiveInteger(this.options.numResults)) return { available: false, reason: 'misconfigured' } return { available: true } } async search(request: WebSearchRequest, exec?: { readonly signal?: AbortSignal }): Promise { + // A per-request bound wins over the configured default; either may be absent. + const numResults = request.maxResults ?? this.options.numResults let response: Response try { response = await fetch(`${this.options.baseURL}/search`, { @@ -89,8 +105,9 @@ export class ExaSearchProvider implements WebSearchProvider { }, body: JSON.stringify({ query: request.query, - contents: { highlights: true }, - ...request.maxResults !== undefined ? { numResults: request.maxResults } : {}, + type: this.options.searchType, + contents: { highlights: { highlightsPerUrl: this.options.highlightsPerResult } }, + ...numResults !== undefined ? { numResults } : {}, }), ...exec?.signal ? { signal: exec.signal } : {}, }) @@ -133,6 +150,11 @@ function isValidBaseUrl(baseURL: string): boolean { return URL.canParse(baseURL) } +/** True for a request limit that can be sent to Exa (a positive whole number). */ +function isPositiveInteger(value: number): boolean { + return Number.isInteger(value) && value > 0 +} + /** True for a fetch/`AbortSignal` abort, surfaced as `WEB_ABORTED`. */ function isAbortError(error: unknown): boolean { return error instanceof DOMException && error.name === 'AbortError' diff --git a/packages/web/web-search-exa/src/types.ts b/packages/web/web-search-exa/src/types.ts index a0bda5f768..fae42d07cd 100644 --- a/packages/web/web-search-exa/src/types.ts +++ b/packages/web/web-search-exa/src/types.ts @@ -10,10 +10,12 @@ /** Request body sent to Exa's search endpoint. */ export interface ExaSearchRequest { query: string + /** Retrieval mode: keyword, neural (embeddings), or auto (Exa decides). */ + type: 'auto' | 'keyword' | 'neural' /** Exa's result-count control; the seam still enforces the bound on return. */ numResults?: number /** Ask Exa to return highlight sentences per result. */ - contents: { highlights: true } + contents: { highlights: { highlightsPerUrl: number } } } /** One entry of Exa's flat `results[]`. */ diff --git a/packages/web/web-search-exa/tests/exa.e2e.ts b/packages/web/web-search-exa/tests/exa.e2e.ts index 78f11940e5..32da0a485c 100644 --- a/packages/web/web-search-exa/tests/exa.e2e.ts +++ b/packages/web/web-search-exa/tests/exa.e2e.ts @@ -1,5 +1,5 @@ import { describe, expect, it } from 'vitest' -import { ExaSearchProvider, EXA_DEFAULT_BASE_URL } from '@deepseek-ai/dsh-web-search-exa' +import { ExaSearchProvider, EXA_DEFAULT_BASE_URL, EXA_DEFAULT_HIGHLIGHTS_PER_RESULT, EXA_DEFAULT_SEARCH_TYPE } from '@deepseek-ai/dsh-web-search-exa' /** * Real-API smoke for the Exa search provider. Self-skips without `$EXA_API_KEY` @@ -10,7 +10,12 @@ const maybe = apiKey !== undefined && apiKey.length > 0 ? describe : describe.sk maybe('ExaSearchProvider real API', () => { it('returns sources for a live query', async () => { - const provider = new ExaSearchProvider({ apiKey: apiKey!, baseURL: process.env.EXA_BASE_URL ?? EXA_DEFAULT_BASE_URL }) + const provider = new ExaSearchProvider({ + apiKey: apiKey!, + baseURL: process.env.EXA_BASE_URL ?? EXA_DEFAULT_BASE_URL, + searchType: EXA_DEFAULT_SEARCH_TYPE, + highlightsPerResult: EXA_DEFAULT_HIGHLIGHTS_PER_RESULT, + }) const result = await provider.search({ query: 'DeepSeek coding agent', maxResults: 5 }) expect(result.providerId).toBe('exa') expect(result.sources.length).toBeGreaterThan(0) diff --git a/packages/web/web-search-exa/tests/exa.spec.ts b/packages/web/web-search-exa/tests/exa.spec.ts index 436e542d7c..dcb6fbea6d 100644 --- a/packages/web/web-search-exa/tests/exa.spec.ts +++ b/packages/web/web-search-exa/tests/exa.spec.ts @@ -4,7 +4,7 @@ import WebService from '@deepseek-ai/dsh-web' import { ExaSearchProvider, mapExaResponse, mapExaResult, EXA_PROVIDER_ID } from '@deepseek-ai/dsh-web-search-exa' import * as exaPlugin from '@deepseek-ai/dsh-web-search-exa' -const options = { apiKey: 'exa-key', baseURL: 'https://api.exa.test' } +const options = { apiKey: 'exa-key', baseURL: 'https://api.exa.test', searchType: 'auto' as const, highlightsPerResult: 1 } function jsonResponse(body: unknown, init: ResponseInit = {}): Response { return new Response(JSON.stringify(body), { status: 200, headers: { 'content-type': 'application/json' }, ...init }) @@ -65,7 +65,7 @@ describe('Exa result mapping', () => { describe('ExaSearchProvider status', () => { it('is unavailable without a key', () => { - expect(new ExaSearchProvider({ apiKey: '', baseURL: options.baseURL }).status()) + expect(new ExaSearchProvider({ ...options, apiKey: '' }).status()) .toEqual({ available: false, reason: 'missing-credential' }) }) @@ -74,27 +74,60 @@ describe('ExaSearchProvider status', () => { }) it('is misconfigured when the base URL is unparseable', () => { - expect(new ExaSearchProvider({ apiKey: 'exa-key', baseURL: 'not a url' }).status()) + expect(new ExaSearchProvider({ ...options, baseURL: 'not a url' }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + }) + + it('is misconfigured when highlightsPerResult is not a positive integer', () => { + expect(new ExaSearchProvider({ ...options, highlightsPerResult: 0 }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + expect(new ExaSearchProvider({ ...options, highlightsPerResult: 1.5 }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + }) + + it('is misconfigured when numResults is set but not a positive integer', () => { + expect(new ExaSearchProvider({ ...options, numResults: -1 }).status()) .toEqual({ available: false, reason: 'misconfigured' }) }) }) describe('ExaSearchProvider request mapping', () => { - it('sends query, highlights, numResults and bearer auth', async () => { + it('sends query, type, highlights, numResults and bearer auth', async () => { const fetchMock = vi.fn(async () => jsonResponse({ results: [{ url: 'https://a.test', highlights: ['hi'] }] })) vi.stubGlobal('fetch', fetchMock) - const provider = new ExaSearchProvider(options) + const provider = new ExaSearchProvider({ ...options, searchType: 'neural', highlightsPerResult: 3 }) await provider.search({ query: 'hello', maxResults: 5 }) expect(fetchMock).toHaveBeenCalledOnce() const [url, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] expect(url).toBe('https://api.exa.test/search') expect((init.headers as Record)['authorization']).toBe('Bearer exa-key') - expect(JSON.parse(init.body as string)).toEqual({ query: 'hello', contents: { highlights: true }, numResults: 5 }) + expect(JSON.parse(init.body as string)).toEqual({ + query: 'hello', + type: 'neural', + contents: { highlights: { highlightsPerUrl: 3 } }, + numResults: 5, + }) }) - it('omits numResults when maxResults is absent', async () => { + it('falls back to the configured numResults when a request omits maxResults', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ results: [] })) + vi.stubGlobal('fetch', fetchMock) + await new ExaSearchProvider({ ...options, numResults: 7 }).search({ query: 'q' }) + const [, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(JSON.parse(init.body as string)).toMatchObject({ numResults: 7 }) + }) + + it('lets a request maxResults win over the configured numResults', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ results: [] })) + vi.stubGlobal('fetch', fetchMock) + await new ExaSearchProvider({ ...options, numResults: 7 }).search({ query: 'q', maxResults: 2 }) + const [, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(JSON.parse(init.body as string)).toMatchObject({ numResults: 2 }) + }) + + it('omits numResults when neither maxResults nor a configured default is set', async () => { const fetchMock = vi.fn(async () => jsonResponse({ results: [] })) vi.stubGlobal('fetch', fetchMock) await new ExaSearchProvider(options).search({ query: 'q' }) @@ -184,6 +217,18 @@ describe('web-search-exa plugin registration', () => { expect('default' in exaPlugin).toBe(false) }) + it('threads searchType and highlightsPerResult config into the request', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ results: [] })) + vi.stubGlobal('fetch', fetchMock) + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: EXA_PROVIDER_ID }) + const fiber = await ctx.plugin(exaPlugin, { apiKey: 'exa-key', searchType: 'keyword', highlightsPerResult: 2 }) + await ctx.web.search({ query: 'q' }) + const [, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(JSON.parse(init.body as string)).toMatchObject({ type: 'keyword', contents: { highlights: { highlightsPerUrl: 2 } } }) + await fiber.dispose() + }) + it('falls back to $EXA_API_KEY and the default base URL when config omits them', async () => { const prev = process.env.EXA_API_KEY process.env.EXA_API_KEY = 'env-key' diff --git a/packages/web/web-search-perplexity/README.md b/packages/web/web-search-perplexity/README.md index e7093a1133..f944413c96 100644 --- a/packages/web/web-search-perplexity/README.md +++ b/packages/web/web-search-perplexity/README.md @@ -11,6 +11,8 @@ This is an **implementation** package: it registers a provider into `ctx.web`, i | `apiKey` | `$PERPLEXITY_API_KEY` | Perplexity API key. Empty/absent → provider `status()` reports `missing-credential`. | | `baseURL` | `https://api.perplexity.ai` | Endpoint base; `/chat/completions` is appended. An unparseable value makes `status()` report `misconfigured`. | | `model` | `sonar` | Search model name. | +| `maxTokens` | `1024` | Upper bound on generated answer tokens (`max_tokens`). Must be a positive integer. | +| `searchRecency` | (unset) | Recency window sent as `search_recency_filter`: `day`, `week`, `month`, or `year`. Unset sends no filter. | ```yaml - id: web-search-perplexity diff --git a/packages/web/web-search-perplexity/src/index.ts b/packages/web/web-search-perplexity/src/index.ts index 0fd46ffb71..3d375eaabb 100644 --- a/packages/web/web-search-perplexity/src/index.ts +++ b/packages/web/web-search-perplexity/src/index.ts @@ -10,17 +10,18 @@ import type { Context } from 'cordis' import z from 'schemastery' import type {} from '@deepseek-ai/dsh-web' -import { PerplexitySearchProvider, PERPLEXITY_DEFAULT_BASE_URL, PERPLEXITY_DEFAULT_MODEL } from './provider.ts' +import { PerplexitySearchProvider, PERPLEXITY_DEFAULT_BASE_URL, PERPLEXITY_DEFAULT_MAX_TOKENS, PERPLEXITY_DEFAULT_MODEL } from './provider.ts' export { PERPLEXITY_DEFAULT_BASE_URL, + PERPLEXITY_DEFAULT_MAX_TOKENS, PERPLEXITY_DEFAULT_MODEL, PERPLEXITY_PROVIDER_ID, PerplexitySearchProvider, mapPerplexityResponse, mapPerplexityResult, } from './provider.ts' -export type { PerplexitySearchProviderOptions } from './provider.ts' +export type { PerplexityRecency, PerplexitySearchProviderOptions } from './provider.ts' /** Cordis plugin name used by loader diagnostics. */ export const name = 'web-search-perplexity' @@ -35,18 +36,27 @@ export interface Config { baseURL?: string /** Search model name. Defaults to `sonar`. */ model?: string + /** Upper bound on generated answer tokens. Defaults to 1024. */ + maxTokens?: number + /** Recency window sent as `search_recency_filter`. Omitted = no filter. */ + searchRecency?: 'day' | 'week' | 'month' | 'year' } export const Config: z = z.object({ apiKey: z.string(), baseURL: z.string(), model: z.string(), + maxTokens: z.number().step(1).min(1), + searchRecency: z.union(['day', 'week', 'month', 'year'] as const), }) /** Register the Perplexity search provider with `ctx.web`. */ export function apply(ctx: Context, config: Config): void { - const apiKey = config.apiKey ?? process.env.PERPLEXITY_API_KEY ?? '' - const baseURL = config.baseURL ?? PERPLEXITY_DEFAULT_BASE_URL - const model = config.model ?? PERPLEXITY_DEFAULT_MODEL - ctx.web.registerSearchProvider(new PerplexitySearchProvider({ apiKey, baseURL, model })) + ctx.web.registerSearchProvider(new PerplexitySearchProvider({ + apiKey: config.apiKey ?? process.env.PERPLEXITY_API_KEY ?? '', + baseURL: config.baseURL ?? PERPLEXITY_DEFAULT_BASE_URL, + model: config.model ?? PERPLEXITY_DEFAULT_MODEL, + maxTokens: config.maxTokens ?? PERPLEXITY_DEFAULT_MAX_TOKENS, + ...config.searchRecency !== undefined ? { searchRecency: config.searchRecency } : {}, + })) } diff --git a/packages/web/web-search-perplexity/src/provider.ts b/packages/web/web-search-perplexity/src/provider.ts index 5b5feb897b..ed72ea82c3 100644 --- a/packages/web/web-search-perplexity/src/provider.ts +++ b/packages/web/web-search-perplexity/src/provider.ts @@ -32,6 +32,12 @@ export const PERPLEXITY_DEFAULT_BASE_URL = 'https://api.perplexity.ai' /** Default search model. */ export const PERPLEXITY_DEFAULT_MODEL = 'sonar' +/** Default upper bound on generated answer tokens. */ +export const PERPLEXITY_DEFAULT_MAX_TOKENS = 1024 + +/** Recency filter values Perplexity accepts for `search_recency_filter`. */ +export type PerplexityRecency = 'day' | 'week' | 'month' | 'year' + /** Attribution header sent on every request. Bump with the package version. */ const USER_AGENT = 'deepseek-harness/0.0.1' @@ -42,6 +48,10 @@ export interface PerplexitySearchProviderOptions { baseURL: string /** Search model name. */ model: string + /** Upper bound on generated answer tokens (`max_tokens`). */ + maxTokens: number + /** Optional recency window sent as `search_recency_filter`; omitted = no filter. */ + searchRecency?: PerplexityRecency } /** Map one structured Perplexity search result to a normalized source. */ @@ -82,6 +92,7 @@ export class PerplexitySearchProvider implements WebSearchProvider { status(): WebProviderStatus { if (this.options.apiKey.length === 0) return { available: false, reason: 'missing-credential' } if (!URL.canParse(this.options.baseURL)) return { available: false, reason: 'misconfigured' } + if (!isPositiveInteger(this.options.maxTokens)) return { available: false, reason: 'misconfigured' } return { available: true } } @@ -98,7 +109,9 @@ export class PerplexitySearchProvider implements WebSearchProvider { }, body: JSON.stringify({ model: this.options.model, + max_tokens: this.options.maxTokens, messages: [{ role: 'user', content: request.query }], + ...this.options.searchRecency !== undefined ? { search_recency_filter: this.options.searchRecency } : {}, }), ...exec?.signal ? { signal: exec.signal } : {}, }) @@ -140,3 +153,8 @@ export class PerplexitySearchProvider implements WebSearchProvider { function isAbortError(error: unknown): boolean { return error instanceof DOMException && error.name === 'AbortError' } + +/** True for a request limit that can be sent to Perplexity (a positive whole number). */ +function isPositiveInteger(value: number): boolean { + return Number.isInteger(value) && value > 0 +} diff --git a/packages/web/web-search-perplexity/tests/perplexity.e2e.ts b/packages/web/web-search-perplexity/tests/perplexity.e2e.ts index a546acab70..9414d46937 100644 --- a/packages/web/web-search-perplexity/tests/perplexity.e2e.ts +++ b/packages/web/web-search-perplexity/tests/perplexity.e2e.ts @@ -1,5 +1,5 @@ import { describe, expect, it } from 'vitest' -import { PerplexitySearchProvider, PERPLEXITY_DEFAULT_BASE_URL, PERPLEXITY_DEFAULT_MODEL } from '@deepseek-ai/dsh-web-search-perplexity' +import { PerplexitySearchProvider, PERPLEXITY_DEFAULT_BASE_URL, PERPLEXITY_DEFAULT_MAX_TOKENS, PERPLEXITY_DEFAULT_MODEL } from '@deepseek-ai/dsh-web-search-perplexity' /** * Real-API smoke for the Perplexity search provider. Self-skips without @@ -14,6 +14,7 @@ maybe('PerplexitySearchProvider real API', () => { apiKey: apiKey!, baseURL: process.env.PERPLEXITY_BASE_URL ?? PERPLEXITY_DEFAULT_BASE_URL, model: process.env.PERPLEXITY_MODEL ?? PERPLEXITY_DEFAULT_MODEL, + maxTokens: PERPLEXITY_DEFAULT_MAX_TOKENS, }) const result = await provider.search({ query: 'What is the DeepSeek coding agent?', maxResults: 5 }) expect(result.providerId).toBe('perplexity') diff --git a/packages/web/web-search-perplexity/tests/perplexity.spec.ts b/packages/web/web-search-perplexity/tests/perplexity.spec.ts index d84c34a328..6d55f384dd 100644 --- a/packages/web/web-search-perplexity/tests/perplexity.spec.ts +++ b/packages/web/web-search-perplexity/tests/perplexity.spec.ts @@ -8,7 +8,7 @@ import { } from '@deepseek-ai/dsh-web-search-perplexity' import * as perplexityPlugin from '@deepseek-ai/dsh-web-search-perplexity' -const options = { apiKey: 'pplx-key', baseURL: 'https://api.perplexity.test', model: 'sonar' } +const options = { apiKey: 'pplx-key', baseURL: 'https://api.perplexity.test', model: 'sonar', maxTokens: 1024 } function jsonResponse(body: unknown, init: ResponseInit = {}): Response { return new Response(JSON.stringify(body), { status: 200, headers: { 'content-type': 'application/json' }, ...init }) @@ -80,17 +80,34 @@ describe('PerplexitySearchProvider status', () => { expect(new PerplexitySearchProvider({ ...options, baseURL: 'not a url' }).status()) .toEqual({ available: false, reason: 'misconfigured' }) }) + + it('is misconfigured when maxTokens is not a positive integer', () => { + expect(new PerplexitySearchProvider({ ...options, maxTokens: 0 }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + expect(new PerplexitySearchProvider({ ...options, maxTokens: 1.5 }).status()) + .toEqual({ available: false, reason: 'misconfigured' }) + }) }) describe('PerplexitySearchProvider request mapping', () => { - it('sends a chat-completions request with the query as a user message', async () => { + it('sends a chat-completions request with the query, model and max_tokens', async () => { const fetchMock = vi.fn(async () => jsonResponse({ choices: [{ message: { content: 'a' } }], citations: [] })) vi.stubGlobal('fetch', fetchMock) await new PerplexitySearchProvider(options).search({ query: 'hello' }) const [url, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] expect(url).toBe('https://api.perplexity.test/chat/completions') expect((init.headers as Record)['authorization']).toBe('Bearer pplx-key') - expect(JSON.parse(init.body as string)).toEqual({ model: 'sonar', messages: [{ role: 'user', content: 'hello' }] }) + expect(JSON.parse(init.body as string)).toEqual({ model: 'sonar', max_tokens: 1024, messages: [{ role: 'user', content: 'hello' }] }) + }) + + it('sends search_recency_filter when configured, and omits it otherwise', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ choices: [{ message: { content: 'a' } }], citations: [] })) + vi.stubGlobal('fetch', fetchMock) + await new PerplexitySearchProvider({ ...options, searchRecency: 'week' }).search({ query: 'q' }) + expect(JSON.parse((fetchMock.mock.calls[0] as unknown as [string, RequestInit])[1].body as string)).toMatchObject({ search_recency_filter: 'week' }) + + await new PerplexitySearchProvider(options).search({ query: 'q' }) + expect(JSON.parse((fetchMock.mock.calls[1] as unknown as [string, RequestInit])[1].body as string)).not.toHaveProperty('search_recency_filter') }) it('forwards the abort signal', async () => { From 0a595aea78742283d886accd6c803815bccbab48 Mon Sep 17 00:00:00 2001 From: Dudu-0223 Date: Fri, 3 Jul 2026 17:03:54 +0800 Subject: [PATCH 19/32] test(web): cover the config-present branch of exa/perplexity apply The numResults (exa) and searchRecency (perplexity) conditional spreads in apply() were only exercised on their absent side, leaving the 100% per-file branch gate red. Add plugin-registration tests that pass those config fields and assert they reach the request body. --- packages/web/web-search-exa/tests/exa.spec.ts | 6 +++--- .../web-search-perplexity/tests/perplexity.spec.ts | 12 ++++++++++++ 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/packages/web/web-search-exa/tests/exa.spec.ts b/packages/web/web-search-exa/tests/exa.spec.ts index dcb6fbea6d..9cf31332f5 100644 --- a/packages/web/web-search-exa/tests/exa.spec.ts +++ b/packages/web/web-search-exa/tests/exa.spec.ts @@ -217,15 +217,15 @@ describe('web-search-exa plugin registration', () => { expect('default' in exaPlugin).toBe(false) }) - it('threads searchType and highlightsPerResult config into the request', async () => { + it('threads searchType, highlightsPerResult and numResults config into the request', async () => { const fetchMock = vi.fn(async () => jsonResponse({ results: [] })) vi.stubGlobal('fetch', fetchMock) const ctx = new Context() await ctx.plugin(WebService, { searchProvider: EXA_PROVIDER_ID }) - const fiber = await ctx.plugin(exaPlugin, { apiKey: 'exa-key', searchType: 'keyword', highlightsPerResult: 2 }) + const fiber = await ctx.plugin(exaPlugin, { apiKey: 'exa-key', searchType: 'keyword', highlightsPerResult: 2, numResults: 9 }) await ctx.web.search({ query: 'q' }) const [, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] - expect(JSON.parse(init.body as string)).toMatchObject({ type: 'keyword', contents: { highlights: { highlightsPerUrl: 2 } } }) + expect(JSON.parse(init.body as string)).toMatchObject({ type: 'keyword', contents: { highlights: { highlightsPerUrl: 2 } }, numResults: 9 }) await fiber.dispose() }) diff --git a/packages/web/web-search-perplexity/tests/perplexity.spec.ts b/packages/web/web-search-perplexity/tests/perplexity.spec.ts index 6d55f384dd..70a9a4c98b 100644 --- a/packages/web/web-search-perplexity/tests/perplexity.spec.ts +++ b/packages/web/web-search-perplexity/tests/perplexity.spec.ts @@ -198,6 +198,18 @@ describe('web-search-perplexity plugin registration', () => { expect('default' in perplexityPlugin).toBe(false) }) + it('threads maxTokens and searchRecency config into the request', async () => { + const fetchMock = vi.fn(async () => jsonResponse({ choices: [{ message: { content: 'a' } }], citations: [] })) + vi.stubGlobal('fetch', fetchMock) + const ctx = new Context() + await ctx.plugin(WebService, { searchProvider: PERPLEXITY_PROVIDER_ID }) + const fiber = await ctx.plugin(perplexityPlugin, { apiKey: 'pplx-key', maxTokens: 256, searchRecency: 'month' }) + await ctx.web.search({ query: 'q' }) + const [, init] = fetchMock.mock.calls[0] as unknown as [string, RequestInit] + expect(JSON.parse(init.body as string)).toMatchObject({ max_tokens: 256, search_recency_filter: 'month' }) + await fiber.dispose() + }) + it('falls back to env key and defaults for base URL and model when config omits them', async () => { const prev = process.env.PERPLEXITY_API_KEY process.env.PERPLEXITY_API_KEY = 'env-key' From d8fd3225af6d0ab64df1ea716befcef4c623adab Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 17:12:00 +0800 Subject: [PATCH 20/32] feat(tool-fs): result-time applied-hunk diffs for write/edit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit fs write/edit now emit a result-time contextual-diff tool_call_update (the applied hunk with ±3 context lines, one hunk per replace_all site), matching what claude-agent-acp sends and what makes an editor render the change in place. The call-time snippet diff stays; the result hunk supersedes it (ACP content-replace). Mechanism: - A persisted tool-private `meta` channel: execute may return `{ content, meta }`; `meta` (JsonValue) rides on the tool/result event and is handed back to presentResult, so the diff reproduces on replay (event-sourced). JsonValue is now exported from dsh-session. - The backend returns raw before/after text (storage facts) on FsWriteOutcome/FsEditOutcome; the tool computes the hunk via the npm `diff` package's structuredPatch. A create has no before → no result diff; a failed/aborted mutation carries no meta. - ToolResultView gains a DiffResultView; the bridge's result-side switch renders it as {type:'diff'} content blocks. RFC: docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md (justifies the npm `diff` runtime dep over vendoring and the meta channel); the render-intent-union RFC's Non-goal is updated to record this shipped. All fs snapshot goldens re-recorded; edit/overwrite gain the contextual result diff, create/read/policy-reject unchanged in structure. --- docs/cordis-catalog/events-and-services.md | 14 +- docs/core-data-structures/filesystem.md | 4 + docs/core-data-structures/session.md | 2 +- docs/core-data-structures/tools.md | 9 +- docs/module-graph.md | 6 +- docs/rfc/README.md | 1 + ...26-07-02-result-time-applied-hunk-diffs.md | 54 ++ .../2026-07-02-tool-render-intent-union.md | 2 +- .../tests/snapshots/fs-edit/session.jsonl | 278 +++++---- .../snapshots/fs-edit/stdout.golden.jsonl | 34 +- .../snapshots/fs-policy-reject/session.jsonl | 555 ++++++++++++------ .../fs-policy-reject/stdout.golden.jsonl | 323 +++++++--- .../snapshots/fs-read-window/session.jsonl | 228 +++---- .../fs-read-window/stdout.golden.jsonl | 38 +- .../tests/snapshots/fs-read/session.jsonl | 180 +++--- .../snapshots/fs-read/stdout.golden.jsonl | 32 +- .../snapshots/fs-terminal-card/session.jsonl | 191 +++--- .../fs-terminal-card/stdout.golden.jsonl | 30 +- .../fs-write-overwrite/session.jsonl | 277 ++++----- .../fs-write-overwrite/stdout.golden.jsonl | 69 ++- .../tests/snapshots/fs-write/session.jsonl | 189 +++--- .../snapshots/fs-write/stdout.golden.jsonl | 17 +- packages/core/agent-loop/src/loop.ts | 3 + packages/core/agent-loop/tests/loop.spec.ts | 26 + packages/core/session/src/index.ts | 1 + packages/core/session/src/json.ts | 10 + packages/core/session/src/types.ts | 12 +- packages/core/tools/README.md | 7 +- packages/core/tools/package.json | 2 + packages/core/tools/src/index.ts | 66 ++- packages/core/tools/src/schema.ts | 11 +- packages/core/tools/tests/tools.spec.ts | 32 + packages/fs/fs-local/src/fsio.ts | 19 + packages/fs/fs-local/src/index.ts | 13 + packages/fs/fs-local/tests/filesystem.spec.ts | 54 ++ packages/fs/fs/src/types.ts | 16 + packages/fs/fs/tests/service.spec.ts | 9 +- packages/fs/tool-fs/package.json | 4 + packages/fs/tool-fs/src/diff.ts | 92 +++ packages/fs/tool-fs/src/edit.ts | 27 +- packages/fs/tool-fs/src/index.ts | 2 + packages/fs/tool-fs/src/write.ts | 24 +- packages/fs/tool-fs/tests/diff.spec.ts | 113 ++++ packages/fs/tool-fs/tests/tools.spec.ts | 86 ++- packages/ui/acp/acp-feature-support.md | 3 +- packages/ui/acp/src/index.ts | 26 +- packages/ui/acp/tests/stream-update.spec.ts | 86 +++ pnpm-lock.yaml | 13 + 48 files changed, 2217 insertions(+), 1073 deletions(-) create mode 100644 docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md create mode 100644 packages/fs/tool-fs/src/diff.ts create mode 100644 packages/fs/tool-fs/tests/diff.spec.ts diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index bb7dcb58a4..90419feeb9 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -259,7 +259,7 @@ A session was created in the store. 'session/created'(session: Session): void ``` -Source: [`packages/core/session/src/index.ts:34`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:35`](../../packages/core/session/src/index.ts) #### `session/event` — emit @@ -271,7 +271,7 @@ An event was appended to a session log (sync, fire-and-forget). This is the per- Types: [SessionEvent](../core-data-structures/core.md) -Source: [`packages/core/session/src/index.ts:40`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:41`](../../packages/core/session/src/index.ts) #### `session/flush` — parallel @@ -281,7 +281,7 @@ Awaited durability checkpoint. The agent loop awaits `ctx.parallel('session/flus 'session/flush'(session: Session): Promise | void ``` -Source: [`packages/core/session/src/index.ts:49`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:50`](../../packages/core/session/src/index.ts) ### `subagent/*` @@ -337,7 +337,7 @@ A tool was registered or unregistered (the available tool set changed). 'tools/change'(): void ``` -Source: [`packages/core/tools/src/index.ts:48`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:49`](../../packages/core/tools/src/index.ts) #### `tools/execute` — waterfall @@ -349,7 +349,7 @@ Waterfall around every tool execution — the single seam where sandbox, permiss Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:43`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:44`](../../packages/core/tools/src/index.ts) ## Services @@ -507,7 +507,7 @@ get(id: SessionId): Session | undefined list(): Session[] ``` -Source: [`packages/core/session/src/index.ts:322`](../../packages/core/session/src/index.ts) +Source: [`packages/core/session/src/index.ts:323`](../../packages/core/session/src/index.ts) ### `ctx.subagents` — `SubagentService` @@ -547,7 +547,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:319`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:370`](../../packages/core/tools/src/index.ts) ## Inherited tier (cordis core + loader/hmr/timer) diff --git a/docs/core-data-structures/filesystem.md b/docs/core-data-structures/filesystem.md index 2e66dd9d9e..a27c7fa4fb 100644 --- a/docs/core-data-structures/filesystem.md +++ b/docs/core-data-structures/filesystem.md @@ -52,6 +52,8 @@ type FsWriteIntent = interface FsWriteOutcome { operation: 'create' | 'update' version: FsVersion + before: string | null + after: string } ``` @@ -70,6 +72,8 @@ interface FsEditOutcome { replacements: number replaceAll: boolean version: FsVersion + before: string + after: string } ``` diff --git a/docs/core-data-structures/session.md b/docs/core-data-structures/session.md index 1a0e209e41..789890680f 100644 --- a/docs/core-data-structures/session.md +++ b/docs/core-data-structures/session.md @@ -32,7 +32,7 @@ interface SessionEventMap { */ 'assistant/message': { turn: number; step: number; content: ContentBlock[]; usage?: TokenUsage } 'tool/call': { turn: number; step: number; callId: CallId; name: string; arguments: string } - 'tool/result': { turn: number; step: number; callId: CallId; content: ContentBlock[]; isError: boolean; error?: { name: string; code: string } } + 'tool/result': { turn: number; step: number; callId: CallId; content: ContentBlock[]; isError: boolean; error?: { name: string; code: string }; meta?: JsonValue } /** Steering content injected between steps of a running turn. */ 'steering/message': { turn: number; content: ContentBlock[]; source: MessageSource } /** diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index 42aa4e70fd..ac765d25cd 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -10,7 +10,7 @@ A `ToolSchema` (the model-facing fields) plus the `execute` function and optiona ```ts type-equiv interface ToolDefinition extends ToolSchema { - execute(args: unknown, exec: ToolExecution): Promise + execute(args: unknown, exec: ToolExecution): Promise /** * Optional: how to present the PENDING state of one call in a UI, derived from * the call's `args` (parsed arguments, `unknown` — the tool validates/narrows @@ -100,6 +100,13 @@ interface ToolExecutionResult { * text in `content` is always present; this is extra structure for code. */ error?: ToolErrorInfo + /** + * The tool-private presentation payload from a successful `execute` (the object + * return form). Threaded onto the `tool/result` session event and back into + * {@link ToolResult} for `presentResult`. Opaque {@link JsonValue}; absent when + * the tool attached none or the call failed. + */ + meta?: JsonValue } ``` diff --git a/docs/module-graph.md b/docs/module-graph.md index 69391388ac..d09fd76eaf 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -40,6 +40,7 @@ graph TD session-persistence-sqlite --> session-persistence tools --> agent tools --> llm + tools --> session tools --> system-prompt ui-stdio --> agent ui-stdio --> llm @@ -64,6 +65,7 @@ graph TD tool-bash --> tools tool-fs --> fs tool-fs --> llm + tool-fs --> session tool-fs --> system-prompt tool-fs --> tools tool-todo --> agent @@ -128,13 +130,13 @@ graph TD | `invariants` | `agent`, `llm`, `session` | | `session-persistence-jsonl` | `session`, `session-persistence` | | `session-persistence-sqlite` | `session`, `session-persistence` | -| `tools` | `agent`, `llm`, `system-prompt` | +| `tools` | `agent`, `llm`, `session`, `system-prompt` | | `ui-stdio` | `agent`, `llm`, `session` | | `acp` | `agent`, `llm`, `session`, `session-persistence`, `tools` | | `agent-loop` | `agent`, `llm`, `session`, `session-persistence`, `system-prompt`, `tools` | | `subagent` | `agent`, `llm`, `tools` | | `tool-bash` | `agent`, `bash`, `llm`, `tools` | -| `tool-fs` | `fs`, `llm`, `system-prompt`, `tools` | +| `tool-fs` | `fs`, `llm`, `session`, `system-prompt`, `tools` | | `tool-todo` | `agent`, `session`, `tools` | | `agent-core` | `agent`, `agent-loop`, `invariants`, `llm`, `session`, `system-prompt`, `tool-bash`, `tools` | | `subagent-acp` | `agent`, `llm`, `subagent` | diff --git a/docs/rfc/README.md b/docs/rfc/README.md index fbefdd3727..43a532754d 100644 --- a/docs/rfc/README.md +++ b/docs/rfc/README.md @@ -126,6 +126,7 @@ Do NOT write one for a mechanical or local choice (a variable name, a one-file r | [Make `dsh-fs-policy` an event-gate plugin, not a method interface](implemented/architecture/2026-06-26-file-context-as-event-gate.md) | 2026-06-26 | | [Resolve filesystem paths against the caller's session cwd](implemented/architecture/2026-07-02-fs-per-session-cwd.md) | 2026-07-02 | | [Tagged render-intent union for tool-call presentation](implemented/architecture/2026-07-02-tool-render-intent-union.md) | 2026-07-02 | +| [Result-time applied-hunk diffs for file mutations](implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md) | 2026-07-02 | ### Process diff --git a/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md new file mode 100644 index 0000000000..591dbb4779 --- /dev/null +++ b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md @@ -0,0 +1,54 @@ +# RFC: Result-time applied-hunk diffs for file mutations + +Status: implemented + +## Problem + +The [tagged render-intent union](2026-07-02-tool-render-intent-union.md) gave `dsh-tool-fs` write/edit a `card:'diff'` at CALL time, derived purely from the tool's args: write ⇒ `{oldText:null, newText:content}` (the whole new file), edit ⇒ `{oldText:old_string, newText:new_string}` (the bare replaced snippet). An editor renders that as an inline diff, but it is a **context-free** diff — the bare `old_string`→`new_string` with no surrounding lines, and a `replace_all` that touched five scattered sites still renders as one snippet pair. + +Driving `claude-agent-acp`'s own ACP bridge shows what a full editor diff looks like: after the mutation applies, it emits a SECOND `tool_call_update` whose diff is the **applied hunk with ±3 context lines** (and one hunk per changed site for `replace_all`), reconstructed from the tool's `structuredPatch`. That result-time hunk is what makes Zed show the change *in place* in the file rather than as a floating snippet. Our tools stopped at the call-time snippet; the completed result carried only the plain "updated successfully" text, no diff. + +The obstacle is a seam boundary: `presentResult(args, result)` is a **pure function of `args` + the model-facing `result` (`{content, isError}`)** — it runs on live streaming AND on session-log replay, so it must be replay-deterministic and cannot do I/O. It never sees the file's before/after content, and `FsEditOutcome`/`FsWriteOutcome` carried only a replacement count + version, not the text. So there was no way to compute — or even carry — an applied hunk to the presenter. + +## Decision + +Add a **persisted, tool-private presentation channel** so a tool's `execute` can attach a result-time render payload that survives replay, and use it to carry the applied-hunk diff. + +### 1. A `meta` channel on the tool result (core) + +`ToolDefinition.execute` may now return either its model-facing `ContentBlock[]` (unchanged, the common case) OR `{ content: ContentBlock[]; meta?: JsonValue }`: + +```ts ignore-check +type ToolExecuteReturn = ContentBlock[] | { content: ContentBlock[]; meta?: JsonValue } +``` + +`meta` is an opaque, JSON-serializable payload the core never interprets. The registry threads it onto the `tool/result` **session event** (`{ …, meta?: JsonValue }`), so it is persisted with the log; on replay the same `meta` is read back and handed to `presentResult` via a widened `ToolResult` (`{ content, isError, meta? }`). Because the payload lives in the event log, the diff reproduces on session reload / snapshot replay **for free** — the event-sourcing guarantee, not a re-computation. `JsonValue` is exported from `dsh-session` (paired with the existing `isJsonValue` predicate that already gates every event's serializability at `append`). + +This is the general shape ("a tool attaches durable result presentation"), not an fs-specific one — any tool can use it. + +### 2. The tool computes the hunk; the backend returns before/after (fs) + +Per the [capability-seam split](2026-06-13-capability-seams.md), the storage backend returns only **storage facts** and the model-facing tool owns **presentation**: + +- `dsh-fs` widens `FsEditOutcome` with `{ before: string; after: string }` and `FsWriteOutcome` with `{ before: string | null; after: string }` (`before: null` ⇒ a create, or an existing-but-undiffable binary/non-UTF-8 file). The local backend already holds both texts at write time; it returns them as raw LF-normalized text, with **no diff/UI concept** entering the seam. +- `dsh-tool-fs` computes the contextual hunk from before/after and attaches it as `meta: { diffs: FileDiff[] }`. A result diff is emitted only when a before-version exists — edit always; write on overwrite; **a create emits none** (there is no before), matching `claude-agent-acp`'s empty `structuredPatch` on create. A failed/aborted/policy-rejected mutation applied nothing, so it carries no `meta` and renders no result diff. + +### 3. The bridge renders a `diff` result card + +`ToolResultView` gains a `DiffResultView { card:'diff'; title?; diffs: FileDiff[] }`; the bridge's result-side `switch (view.card)` gets a `diff` arm emitting the `{type:'diff'}` `ToolCallContent` blocks (mirroring the call-side arm). An ACP `tool_call_update.content` REPLACES the call's content in an editor, so the result-time contextual hunk **supersedes** the call-time snippet — the two-update sequence (call snippet, then result hunk) matches `claude-agent-acp` exactly. + +### The diff algorithm — a third-party runtime dependency over vendoring + +Computing hunks-with-context is a solved problem with sharp edge cases (grouping, context coalescing, the trailing-newline marker). Rather than hand-roll it, `dsh-tool-fs` takes a runtime dependency on the npm [`diff`](https://www.npmjs.com/package/diff) package (v9, ships its own types) and uses its `structuredPatch`. The repo's default is to vendor Cordis-framework source, but that policy is about the *framework*; a leaf tool package taking a small, well-known, self-typed utility dependency is the same shape as `dsh-acp` depending on `@agentclientprotocol/sdk`. Vendoring a diff algorithm would be re-implementing a battle-tested one for no benefit — the [pre-release "foundation over blast radius"](../../../../AGENTS.md) reasoning does not argue for re-deriving standard algorithms. The dependency is pinned and its output is normalized in one small module (`packages/fs/tool-fs/src/diff.ts`). + +## Non-goals + +- **Live incremental diff streaming.** The hunk is computed once, after the mutation completes; there is no per-keystroke diff. +- **Diffing a binary/non-UTF-8 overwrite.** `before` is `null` for such a file (it has no text diff basis); the write still succeeds and renders the call-time card only. +- **Rename/move diffs.** Only content diffs of a single resolved path. + +## Related + +- Completes the one remaining representation difference named as a non-goal in [Tagged render-intent union](2026-07-02-tool-render-intent-union.md) — that RFC's Non-goals section is updated to record that applied-hunk diffs shipped here. +- Builds on the [filesystem capability seam](2026-06-17-filesystem-capability-seam.md) (the before/after are storage facts the backend returns) and [event-sourced sessions](2026-06-11-event-sourced-sessions.md) (the `meta` payload persists on the `tool/result` event, so replay reproduces the card). +- The `meta` channel is deliberately generic: a future tool (a structured search, a data-table result) can attach its own durable result presentation without another core change. diff --git a/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md b/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md index 1ad5e84e33..66bea7a820 100644 --- a/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md +++ b/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md @@ -60,11 +60,11 @@ interface TerminalResultView { card: 'terminal'; title?: string; output?: string ## Non-goals -- **Applied-hunk diffs.** `claude-agent-acp` additionally rewrites Write/Edit diffs at *result* time with real structured-patch hunks (via a PostToolUse hook: `toolUpdateFromDiffToolResponse`). Our diffs are call-time and args-derived (the whole `old_string`→`new_string`, no surrounding context lines), because `presentResult` sees only `{content, isError}` and `FsEditOutcome` carries a replacement count/version, not hunk text. Real hunks would need a new result/event shape carrying the patch — a follow-up, not this change. This is the one remaining representation difference from `claude-agent-acp`, and it is architectural (needs a new event), not cosmetic. - **Live incremental `terminal_output_delta` streaming** and **command classification** — the terminal-rendering RFC's own deferred follow-ups, untouched here. ## Related - Supersedes the deferral in [Collapse tool-owned UI presentation](../../rejected/simplification/2026-06-20-generic-tool-rendering.md) (rejected — "wait for two real tools and two real consumers, then a tagged render-intent union"). That bar is now met; this is that union. +- Extended by [Result-time applied-hunk diffs](2026-07-02-result-time-applied-hunk-diffs.md), which adds a persisted `meta` channel so write/edit emit a result-time contextual-hunk `DiffResultView` (context lines + one hunk per `replace_all` site) on top of this union's call-time diff card. - Folds `ToolTerminal` into the `terminal` views described by [ACP terminal and tool-call rendering](../feature/2026-06-18-acp-terminal-and-tool-rendering.md) (the `_meta` terminal-card convention and capability gate are unchanged; only the harness-side presentation type changes). - The ACP SDK's `Diff` / `ToolCallContent` types back the new `diff` card. diff --git a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl index 0e6b253480..d491e4cf0f 100644 --- a/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-edit/session.jsonl @@ -1,147 +1,131 @@ -{"type":"session","version":0,"id":"2d43b6e7-859c-4e20-9145-3bcfe4c29836","createdAt":1782993777165,"cwd":"/tmp/acp-snap-cwd-yl8qhJ"} -{"type":"turn/start","seq":0,"time":1782993777170,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1782993777170,"data":{"content":[{"type":"text","text":"First use the read tool to read config.txt in the current directory. 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+{"type":"assistant/chunk","seq":62,"time":1783069534073,"data":{"turn":1,"step":1,"chunk":{"type":"finish","reason":{"kind":"tool-calls"}}}} +{"type":"assistant/message","seq":63,"time":1783069534076,"data":{"turn":1,"step":1,"content":[{"type":"reasoning","text":"The user wants me to create a file named notes.txt with the content \"hello world\" using the write tool, then reply with exactly the word \"DONE\"."},{"type":"tool-call","id":"call_00_ICLusq2lV6YYBtn1szVM9454","name":"write","arguments":"{\"file_path\": \"notes.txt\", \"content\": \"hello world\"}"}],"usage":{"inputTokens":115,"outputTokens":95,"cacheReadTokens":2176,"reasoningTokens":33}},"sourceEventSeqs":[3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62],"surfaceOp":"append"} +{"type":"tool/call","seq":64,"time":1783069534076,"data":{"turn":1,"step":1,"callId":"call_00_ICLusq2lV6YYBtn1szVM9454","name":"write","arguments":"{\"file_path\": \"notes.txt\", \"content\": \"hello world\"}"}} +{"type":"tool/result","seq":65,"time":1783069534084,"data":{"turn":1,"step":1,"callId":"call_00_ICLusq2lV6YYBtn1szVM9454","content":[{"type":"text","text":"/tmp/acp-snap-cwd-FOCYwl/notes.txt\nfile\n\nCreated file\n"}],"isError":false},"sourceEventSeqs":[64],"surfaceOp":"append"} +{"type":"step/end","seq":66,"time":1783069534084,"data":{"turn":1,"step":1}} +{"type":"step/start","seq":67,"time":1783069534084,"data":{"turn":1,"step":2}} +{"type":"assistant/chunk","seq":68,"time":1783069535137,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":0,"blockType":"reasoning"}}} +{"type":"assistant/chunk","seq":69,"time":1783069535137,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"File"}}} +{"type":"assistant/chunk","seq":70,"time":1783069535256,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" created"}}} +{"type":"assistant/chunk","seq":71,"time":1783069535289,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" successfully"}}} +{"type":"assistant/chunk","seq":72,"time":1783069535289,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"."}}} +{"type":"assistant/chunk","seq":73,"time":1783069535289,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" Now"}}} +{"type":"assistant/chunk","seq":74,"time":1783069535326,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" I"}}} +{"type":"assistant/chunk","seq":75,"time":1783069535326,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" should"}}} +{"type":"assistant/chunk","seq":76,"time":1783069535326,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" reply"}}} +{"type":"assistant/chunk","seq":77,"time":1783069535326,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}} +{"type":"assistant/chunk","seq":78,"time":1783069535359,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" exactly"}}} +{"type":"assistant/chunk","seq":79,"time":1783069535360,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" \""}}} +{"type":"assistant/chunk","seq":80,"time":1783069535360,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"D"}}} +{"type":"assistant/chunk","seq":81,"time":1783069535360,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"ONE"}}} +{"type":"assistant/chunk","seq":82,"time":1783069535360,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"\"."}}} +{"type":"assistant/chunk","seq":83,"time":1783069535399,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":84,"time":1783069535399,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"D"}}} +{"type":"assistant/chunk","seq":85,"time":1783069535399,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"ONE"}}} +{"type":"assistant/chunk","seq":86,"time":1783069535399,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"File created successfully. Now I should reply with exactly \"DONE\"."}}}} +{"type":"assistant/chunk","seq":87,"time":1783069535399,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"DONE"}}}} +{"type":"assistant/chunk","seq":88,"time":1783069535400,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":256,"outputTokens":17,"cacheReadTokens":2176,"reasoningTokens":14}}}} +{"type":"assistant/chunk","seq":89,"time":1783069535400,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":90,"time":1783069535400,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"File created successfully. Now I should reply with exactly \"DONE\"."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":256,"outputTokens":17,"cacheReadTokens":2176,"reasoningTokens":14}},"sourceEventSeqs":[68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89],"surfaceOp":"append"} +{"type":"step/end","seq":91,"time":1783069535400,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":92,"time":1783069535400,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl index eac3a6ea99..5b4d170e18 100644 --- a/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl @@ -23,29 +23,28 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" write"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" tool"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":","}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" and"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" then"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" word"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"D"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_OxAUP9dIc6I1B6Coo5vs8586","title":"Write notes.txt","kind":"edit","status":"in_progress","locations":[{"path":"notes.txt"}],"content":[{"type":"diff","path":"notes.txt","oldText":null,"newText":"hello world"}]}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_OxAUP9dIc6I1B6Coo5vs8586","status":"completed","content":[{"type":"content","content":{"type":"text","text":"{{cwd}}/notes.txt\nfile\n\nCreated file\n"}}]}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" file"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" was"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_ICLusq2lV6YYBtn1szVM9454","title":"Write notes.txt","kind":"edit","status":"in_progress","locations":[{"path":"notes.txt"}],"content":[{"type":"diff","path":"notes.txt","oldText":null,"newText":"hello world"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_ICLusq2lV6YYBtn1szVM9454","status":"completed","content":[{"type":"content","content":{"type":"text","text":"{{cwd}}/notes.txt\nfile\n\nCreated file\n"}}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"File"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" created"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" successfully"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Now"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" just"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" need"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" should"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"D"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} diff --git a/packages/core/agent-loop/src/loop.ts b/packages/core/agent-loop/src/loop.ts index 200115af9a..4ef1467222 100644 --- a/packages/core/agent-loop/src/loop.ts +++ b/packages/core/agent-loop/src/loop.ts @@ -724,6 +724,9 @@ async function runStep( content: result.content, isError: result.isError, ...result.error ? { error: result.error } : {}, + // The tool's private presentation payload (e.g. a result-time diff), + // persisted so a UI bridge reproduces the card on replay. + ...result.meta !== undefined ? { meta: result.meta } : {}, }, { surfaceOp: 'append', sourceEventSeqs: [callEvent.seq] }) // signal CAN flip during the await above (abort() inside a tool); // the analyzer can't see through the await boundary. diff --git a/packages/core/agent-loop/tests/loop.spec.ts b/packages/core/agent-loop/tests/loop.spec.ts index aa565f15b5..2120d1f3eb 100644 --- a/packages/core/agent-loop/tests/loop.spec.ts +++ b/packages/core/agent-loop/tests/loop.spec.ts @@ -110,6 +110,32 @@ describe('agent loop', () => { expect(types).toContain('tool/result') }) + it('threads a tool-attached meta (execute object return) onto the tool/result event', async () => { + const adapter = new MockAdapter([ + toolCallResponse('c1', 'writer', { path: 'a.txt' }, 'writing'), + textResponse('done'), + ]) + const ctx = await harness(adapter) + // A tool that returns the { content, meta } object form: the loop must + // persist `meta` on the tool/result event so a UI reproduces the card on replay. + ctx.tools.register(defineTool({ + name: 'writer', + description: 'writes a file', + parameters: { path: { type: 'string' } }, + async execute() { + return { content: [{ type: 'text', text: 'ok' }], meta: { diffs: [{ path: 'a.txt', oldText: null, newText: 'x' }] } } + }, + })) + const agent = ctx.agentLoop.create(AgentId('a1'), { model: 'mock' }) + + send(agent, 'use the tool') + await waitForIdle(ctx, agent) + + const toolResult = agent.session.events.find(e => e.type === 'tool/result') + expect(toolResult?.type === 'tool/result' && toolResult.data.meta) + .toEqual({ diffs: [{ path: 'a.txt', oldText: null, newText: 'x' }] }) + }) + it('passes assembled system prompt and tool schemas into the request', async () => { const adapter = new MockAdapter([textResponse('ok')]) const ctx = await harness(adapter) diff --git a/packages/core/session/src/index.ts b/packages/core/session/src/index.ts index cef5e93e91..fee21664ff 100644 --- a/packages/core/session/src/index.ts +++ b/packages/core/session/src/index.ts @@ -16,6 +16,7 @@ import { SurfaceManager, isSurfaceEligibleType } from './surface.ts' export * from './types.ts' export { isJsonValue } from './json.ts' +export type { JsonValue } from './json.ts' export { interruptedTurnClosers } from './repair.ts' export type { SurfaceNode } from './surface.ts' export { isSurfaceEvent, isSurfaceEligibleType } from './surface.ts' diff --git a/packages/core/session/src/json.ts b/packages/core/session/src/json.ts index 6b830afdff..47197b7b90 100644 --- a/packages/core/session/src/json.ts +++ b/packages/core/session/src/json.ts @@ -13,6 +13,16 @@ * @module @deepseek-ai/dsh-session/json */ +/** + * A value that round-trips losslessly through JSON: `null`, a boolean, a finite + * number, a string, an array of such values, or a plain object whose values are + * such values. The static type companion to {@link isJsonValue} (which validates + * the same shape at runtime). Use it to type a payload that must survive + * session-log persistence and replay byte-identically — e.g. a tool's private + * presentation `meta`. + */ +export type JsonValue = null | boolean | number | string | JsonValue[] | { [key: string]: JsonValue } + /** * Whether `value` is losslessly JSON-serializable: only `null`, finite numbers, * booleans, strings, plain arrays, and plain objects of such values. Rejects diff --git a/packages/core/session/src/types.ts b/packages/core/session/src/types.ts index 6ed8c4391e..6a9eaa0fc1 100644 --- a/packages/core/session/src/types.ts +++ b/packages/core/session/src/types.ts @@ -1,5 +1,6 @@ import type { Branded } from '@deepseek-ai/dsh-brand' import type { CallId, ContentBlock, MessageSource, StreamChunk, TokenUsage } from '@deepseek-ai/dsh-llm' +import type { JsonValue } from './json.ts' /** Identifies one session in the store (and its persistence artifacts). */ export type SessionId = Branded<'SessionId'> @@ -210,7 +211,16 @@ export interface SessionEventMap { */ 'assistant/message': { turn: number; step: number; content: ContentBlock[]; usage?: TokenUsage } 'tool/call': { turn: number; step: number; callId: CallId; name: string; arguments: string } - 'tool/result': { turn: number; step: number; callId: CallId; content: ContentBlock[]; isError: boolean; error?: { name: string; code: string } } + /** + * A completed tool call's model-facing result, plus an optional tool-private + * `meta` presentation payload. `meta` is opaque to the core — the producing + * tool owns its shape and reads it back in `presentResult` — and is a + * {@link JsonValue} so it persists in the durable log and reproduces on replay + * (a UI bridge renders the identical card from a loaded session). Absent unless + * the tool attaches one (e.g. `dsh-tool-fs` carries its result-time contextual + * diff here). + */ + 'tool/result': { turn: number; step: number; callId: CallId; content: ContentBlock[]; isError: boolean; error?: { name: string; code: string }; meta?: JsonValue } /** Steering content injected between steps of a running turn. */ 'steering/message': { turn: number; content: ContentBlock[]; source: MessageSource } /** diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index a01881de5b..f6694269ea 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -24,7 +24,7 @@ Tool registry and execution waterfall. Tool plugins register their schemas and e ### Key types -- `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise`, plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). +- `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise` (the bare array is the model-facing content; the object form additionally attaches an opaque, JSON-serializable `meta` presentation payload persisted on the `tool/result` event and handed back to `presentResult`), plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). - `ToolExecution` — one pending tool call: `{ callId, name, arguments, agent?, signal? }`. - `ToolExecutionResult` — outcome: `{ callId, content, isError, error? }`. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). - `ToolCallView` / `ToolResultView` — provider-neutral `card`-tagged render intents a tool returns from `presentCall` / `presentResult` to own how a UI renders ITS calls (see "Tool-owned UI presentation"). @@ -76,11 +76,12 @@ A tool owns how ITS calls render in a UI (an editor's tool-call card, a CLI log - `{ card: 'generic', title, kind?, rawInput?, content?, locations? }` — the default card: a human-readable `title`, an optional `kind` (`read`/`edit`/`execute`/… for icon/treatment, default `other`), an optional `rawInput` (the salient input to show in a detail view — e.g. a background task id, NOT the whole args object), optional `content` (extra UI content blocks), and optional `locations` (`{ path, line? }[]` — files this call reads/modifies, so a capable UI can follow along; the ACP bridge forwards them as `tool_call.locations`). - `{ card: 'terminal', title, description?, cwd? }` — a shell command: a capable UI renders a terminal card (the `title` is the command, `description` renders above it, `cwd` heads it); an incapable UI falls back to a generic execute card. - `{ card: 'diff', title, diffs, locations? }` — a file create/modify: a capable UI renders an inline diff card from `diffs` (`{ path, oldText, newText }[]`; `oldText: null` for a new file). Used by `write`/`edit`. -- `presentResult(args, result): ToolResultView | undefined` — the COMPLETED state, given the same `args` and the `{ content, isError }` result, one of: +- `presentResult(args, result): ToolResultView | undefined` — the COMPLETED state, given the same `args` and the `{ content, isError, meta? }` result, one of: - `{ card: 'generic', title?, content? }` — an optional replacement `title` and reformatted `content`. - `{ card: 'terminal', title?, output?, exitCode?, signal? }` — a terminal run's captured `output` and exit status. A capable UI shows an exit-status pill; an incapable UI gets a fenced ` ```console ` fallback the BRIDGE derives from `output` (the tool does not encode the fences). + - `{ card: 'diff', title?, diffs }` — a completed file mutation as an inline diff. `diffs` is `FileDiff[]` — the APPLIED hunks with surrounding context (one entry per changed site), computed from the before/after file content, distinct from the call-time whole-snippet `diff`. Used by `write`/`edit`; a `tool_call_update.content` replaces the call's content, so this supersedes the pending snippet. -Returning `undefined` (or omitting a method) tells a UI to fall back to a generic presentation (title = tool name, raw args as input, raw result content). Both methods must be **pure and side-effect-free**: a UI may call them during live streaming AND during a session-log replay, so they depend only on their arguments. With `defineTool`, `args` is the typed `InferArgs` shape; the helper soft-validates before calling (a malformed/older logged arg shape yields `undefined` rather than throwing, since display must never crash a replay). The views are provider-neutral — the ACP bridge (`dsh-acp`) maps each `card` to ACP `tool_call`/`tool_call_update` wire fields (a `diff` card to a `{ type: 'diff' }` content block, a `terminal` card to the `_meta` terminal convention), and relativizes a file card's title against the session cwd. See the render-intent-union RFC (`docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md`); `dsh-tool-bash` (terminal) and `dsh-tool-fs` (diff/generic) are the reference implementations. +Returning `undefined` (or omitting a method) tells a UI to fall back to a generic presentation (title = tool name, raw args as input, raw result content). Both methods must be **pure and side-effect-free**: a UI may call them during live streaming AND during a session-log replay, so they depend only on their arguments. `result.meta` is the tool's own optional presentation payload (`JsonValue`), attached by `execute` (see below) and persisted on the `tool/result` event, so a `presentResult` reading it stays replay-deterministic (the same `meta` is read back from the log). With `defineTool`, `args` is the typed `InferArgs` shape; the helper soft-validates before calling (a malformed/older logged arg shape yields `undefined` rather than throwing, since display must never crash a replay). The views are provider-neutral — the ACP bridge (`dsh-acp`) maps each `card` to ACP `tool_call`/`tool_call_update` wire fields (a `diff` card to a `{ type: 'diff' }` content block, a `terminal` card to the `_meta` terminal convention), and relativizes a file card's title against the session cwd. See the render-intent-union RFC (`docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md`) and the applied-hunk-diffs RFC (`docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md`); `dsh-tool-bash` (terminal) and `dsh-tool-fs` (diff/generic) are the reference implementations. ```ts import { defineTool } from '@deepseek-ai/dsh-tools' diff --git a/packages/core/tools/package.json b/packages/core/tools/package.json index a6d3bbe0ca..05394ea118 100644 --- a/packages/core/tools/package.json +++ b/packages/core/tools/package.json @@ -24,12 +24,14 @@ "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", + "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 594e5761cb..0aa19a7b9a 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -11,6 +11,7 @@ import { Context, Service } from 'cordis' import type { CallId, ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' import { HarnessError } from '@deepseek-ai/dsh-llm' import type { Agent } from '@deepseek-ai/dsh-agent' +import type { JsonValue } from '@deepseek-ai/dsh-session' import type {} from '@deepseek-ai/dsh-system-prompt' export { @@ -87,6 +88,13 @@ export interface FileDiff { oldText: string | null /** Content after the change. */ newText: string + /** + * Index signature so a `FileDiff` is a valid {@link JsonValue} member — a tool + * persists result-time diffs as `tool/result` `meta`, which must round-trip + * through the session log. Every declared field is already JSON-compatible; + * this only makes the structural compatibility explicit. + */ + [key: string]: string | null } /** @@ -159,7 +167,8 @@ export interface TerminalCallView { * A call that creates or modifies files, rendered as an inline diff card by a * capable UI. Set by a tool whose call writes/edits a file (e.g. `write`, * `edit`). The diffs are derived from the call ARGUMENTS (a create's `oldText` is - * `null`); result-time applied-hunk diffs are a separate follow-up. + * `null`); the result-time applied-hunk diff (with context) is a separate + * {@link DiffResultView} the tool emits after `execute`. */ export interface DiffCallView { card: 'diff' @@ -179,7 +188,7 @@ export interface DiffCallView { * {@link ToolDefinition.presentResult}; omitting the method keeps the pending * title and renders the raw result content. */ -export type ToolResultView = GenericResultView | TerminalResultView +export type ToolResultView = GenericResultView | TerminalResultView | DiffResultView /** * The default completed card: an optional replacement title and reformatted @@ -217,9 +226,37 @@ export interface TerminalResultView { signal?: string } +/** + * A completed file mutation rendered as an inline diff card, the *result-time* + * analogue of {@link DiffCallView}. Set by a tool whose `execute` applied a + * file change (e.g. `write`, `edit`): `diffs` are the APPLIED hunks computed + * from the before/after file content (one entry per hunk, each with surrounding + * context lines), so the editor shows the real change with context — distinct + * from the call-time whole-snippet {@link DiffCallView}. A `tool_call_update`'s + * content REPLACES the call's content in an editor, so this result diff + * supersedes the pending snippet. + */ +export interface DiffResultView { + card: 'diff' + /** Replacement title for the completed call. Omit to keep the pending-state title. */ + title?: string + /** One entry per applied hunk (a contextual diff), in file order. */ + diffs: FileDiff[] +} + +/** + * What a tool's `execute` returns. The bare {@link ContentBlock}`[]` form is the + * common case (model-facing content only); the object form additionally attaches + * a tool-private `meta` presentation payload ({@link JsonValue}) that the + * registry threads onto the `tool/result` session event and hands back to the + * tool's `presentResult`. `meta` is opaque to the core — the tool owns its shape + * and validates it on the way out — and persists so replay reproduces the card. + */ +export type ToolExecuteReturn = ContentBlock[] | { content: ContentBlock[]; meta?: JsonValue } + /** A registered tool: its schema plus the execution function. */ export interface ToolDefinition extends ToolSchema { - execute(args: unknown, exec: ToolExecution): Promise + execute(args: unknown, exec: ToolExecution): Promise /** * Optional: how to present the PENDING state of one call in a UI, derived from * the call's `args` (parsed arguments, `unknown` — the tool validates/narrows @@ -246,6 +283,13 @@ export interface ToolResult { content: ContentBlock[] /** Whether the call failed. */ isError: boolean + /** + * The tool-private presentation payload the tool attached from `execute` (via + * the object return form), threaded verbatim from the `tool/result` event. + * Opaque {@link JsonValue}; the tool narrows it back to its own shape. Absent + * when the tool attached none. + */ + meta?: JsonValue } /** One pending tool call, as it flows through the execution waterfall. */ @@ -289,6 +333,13 @@ export interface ToolExecutionResult { * text in `content` is always present; this is extra structure for code. */ error?: ToolErrorInfo + /** + * The tool-private presentation payload from a successful `execute` (the object + * return form). Threaded onto the `tool/result` session event and back into + * {@link ToolResult} for `presentResult`. Opaque {@link JsonValue}; absent when + * the tool attached none or the call failed. + */ + meta?: JsonValue } /** @@ -393,8 +444,13 @@ export class ToolRegistry extends Service { // Unknown tool routes through the same catch as a tool-thrown error, so // both failure classes get structured `{ name, code }` from one path. if (!tool) throw new ToolNotFoundError(exec.name) - const content = await tool.execute(exec.arguments, exec) - return { callId: exec.callId, content, isError: false } + // Normalize the two `execute` return shapes: a bare ContentBlock[] (no + // meta) or a { content, meta } object (a tool attaching a private + // presentation payload). An array IS the content; the object carries it. + const returned = await tool.execute(exec.arguments, exec) + const content = Array.isArray(returned) ? returned : returned.content + const meta = Array.isArray(returned) ? undefined : returned.meta + return { callId: exec.callId, content, isError: false, ...meta !== undefined ? { meta } : {} } } catch (error: unknown) { return toolErrorResult(exec.callId, error) } diff --git a/packages/core/tools/src/schema.ts b/packages/core/tools/src/schema.ts index 0b3fc749f4..592ff4df21 100644 --- a/packages/core/tools/src/schema.ts +++ b/packages/core/tools/src/schema.ts @@ -19,9 +19,8 @@ * @module dsh-tools/schema */ -import type { ContentBlock } from '@deepseek-ai/dsh-llm' import { assertNever, HarnessError } from '@deepseek-ai/dsh-llm' -import type { ToolCallView, ToolDefinition, ToolExecution, ToolResult, ToolResultView } from './index.ts' +import type { ToolCallView, ToolDefinition, ToolExecuteReturn, ToolExecution, ToolResult, ToolResultView } from './index.ts' // --------------------------------------------------------------------------- // SchemaSpec — the author-facing per-property type @@ -291,9 +290,11 @@ export interface DefineToolOptions { parameters: S /** * Tool execution function. `args` is typed as {@link InferArgs} — zero - * casts needed. + * casts needed. Returns either a bare {@link ContentBlock}`[]` (model-facing + * content only) or a `{ content, meta }` object to also attach a tool-private + * presentation payload (see {@link ToolExecuteReturn}). */ - execute(args: InferArgs, exec: ToolExecution): Promise + execute(args: InferArgs, exec: ToolExecution): Promise /** * Optional: how to present the PENDING state of one call in a UI (an editor * tool-call card, a CLI log line). `args` is the typed, schema-validated @@ -354,7 +355,7 @@ export function defineTool(options: DefineToolOptions): description: options.description, parameters: schemaSpecToJsonSchema(options.parameters) as unknown as Record, ...options.strict !== undefined ? { strict: options.strict } : {}, - async execute(args: unknown, exec: ToolExecution): Promise { + async execute(args: unknown, exec: ToolExecution): Promise { // Validate the model-generated args before the typed body runs. On // mismatch we throw ToolArgsError; the registry turns it into an // isError result so the model can self-correct. After this guard, the diff --git a/packages/core/tools/tests/tools.spec.ts b/packages/core/tools/tests/tools.spec.ts index 55aa5866ce..78a843f937 100644 --- a/packages/core/tools/tests/tools.spec.ts +++ b/packages/core/tools/tests/tools.spec.ts @@ -81,6 +81,38 @@ describe('ToolRegistry', () => { expect(result).toEqual({ callId: CallId('c1'), content: [{ type: 'text', text: 'hi' }], isError: false }) }) + it('threads a tool-attached meta (object return form) onto the result', async () => { + const ctx = await setup() + ctx.tools.register({ + ...echoTool, + name: 'meta-tool', + async execute() { + return { content: [{ type: 'text', text: 'ok' }], meta: { diffs: [{ path: 'a', oldText: null, newText: 'x' }] } } + }, + }) + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'meta-tool', arguments: {} }) + expect(result).toEqual({ + callId: CallId('c1'), + content: [{ type: 'text', text: 'ok' }], + isError: false, + meta: { diffs: [{ path: 'a', oldText: null, newText: 'x' }] }, + }) + }) + + it('omits meta when the object return form supplies none', async () => { + const ctx = await setup() + ctx.tools.register({ + ...echoTool, + name: 'no-meta-tool', + async execute() { + return { content: [{ type: 'text', text: 'ok' }] } + }, + }) + const result = await ctx.tools.execute({ callId: CallId('c1'), name: 'no-meta-tool', arguments: {} }) + expect(result).toEqual({ callId: CallId('c1'), content: [{ type: 'text', text: 'ok' }], isError: false }) + expect('meta' in result).toBe(false) + }) + it('returns isError results for unknown tools and throwing tools', async () => { const ctx = await setup() ctx.tools.register({ diff --git a/packages/fs/fs-local/src/fsio.ts b/packages/fs/fs-local/src/fsio.ts index b24b7e6b89..9b77678f82 100644 --- a/packages/fs/fs-local/src/fsio.ts +++ b/packages/fs/fs-local/src/fsio.ts @@ -382,6 +382,25 @@ export async function readForEdit( return { content: normalizeLineEndings(raw), lineEndings: detectLineEndings(raw) } } +/** + * Best-effort read of a file's current text for a before/after diff basis, used + * by an overwrite. Returns the LF-normalized decoded content, or `null` when the + * file is binary or not valid UTF-8 — a write must succeed regardless of the + * prior bytes, so an undiffable prior file simply yields no contextual diff + * (the caller treats `null` the same as an absent file: call-time card only). + */ +export async function readTextForDiff(absolutePath: string, signal?: AbortSignal): Promise { + const buffer = await readFileAbortable(absolutePath, 'read', signal) + if (buffer.includes(0)) return null + try { + return normalizeLineEndings(new TextDecoder('utf-8', { fatal: true }).decode(buffer)) + } catch (error: unknown) { + /* v8 ignore next 2 -- TextDecoder({fatal}) only throws TypeError on invalid bytes; any other throw is an unreachable runtime fault. */ + if (!(error instanceof TypeError)) throw error + return null + } +} + /** * Apply a literal replacement to LF-normalized content. Throws * `FS_EDIT_NOT_FOUND` on empty `oldString` or zero matches and diff --git a/packages/fs/fs-local/src/index.ts b/packages/fs/fs-local/src/index.ts index 97dda3c4dd..3ce0fa2f92 100644 --- a/packages/fs/fs-local/src/index.ts +++ b/packages/fs/fs-local/src/index.ts @@ -28,6 +28,7 @@ import { applyLiteralEdit, probe, readForEdit, + readTextForDiff, readWholeText, resolveLocalTarget, restoreLineEndings, @@ -41,6 +42,7 @@ export { applyLiteralEdit, probe, readForEdit, + readTextForDiff, readWholeText, resolveLocalTarget, restoreLineEndings, @@ -143,11 +145,18 @@ export class LocalFileSystem extends FileSystem { // provider) — no version guard, no read-first requirement. Still atomic // (the per-target lock is unconditional), so the write is never torn. + // Capture the prior text (the before/after diff basis) BEFORE the write. + // `null` for a create (no existing file) OR an existing-but-undiffable + // file (binary/invalid-UTF-8) — a consumer renders no result-time diff for + // either, only the call-time whole-file card. + const before = existing ? await readTextForDiff(target.targetKey, signal) : null await writeFileAtomic(target.targetKey, content, existing?.mode, signal, this.internals) const after = await probe(target.targetKey) return { operation: existing ? 'update' : 'create', version: this.versionAfterWrite(after, target), + before, + after: content, } }) } @@ -183,6 +192,10 @@ export class LocalFileSystem extends FileSystem { replacements: edited.replacements, replaceAll: edit.replaceAll, version: this.versionAfterWrite(after, target), + // The LF-normalized before/after text (the applied-hunk diff basis); + // line-ending restoration is a storage detail the diff ignores. + before: original.content, + after: edited.content, } }) } diff --git a/packages/fs/fs-local/tests/filesystem.spec.ts b/packages/fs/fs-local/tests/filesystem.spec.ts index 03c751a538..b6686b9627 100644 --- a/packages/fs/fs-local/tests/filesystem.spec.ts +++ b/packages/fs/fs-local/tests/filesystem.spec.ts @@ -188,6 +188,49 @@ describe('writeText', () => { await expect(fs.writeText(target, 'x')).rejects.toMatchObject({ code: 'FS_NOT_REGULAR_FILE' }) }) + it('a create reports before:null and after = the written content (no prior file)', async () => { + const target = await fs.resolve('new.txt') + const outcome = await fs.writeText(target, 'fresh') + expect(outcome.before).toBeNull() + expect(outcome.after).toBe('fresh') + }) + + it('an overwrite reports before = the OLD content and after = the new content', async () => { + await writeFile(join(dir, 'a.txt'), 'old body') + const target = await fs.resolve('a.txt') + const outcome = await fs.writeText(target, 'new body') + expect(outcome.before).toBe('old body') + expect(outcome.after).toBe('new body') + }) + + it('an overwrite of a CRLF file returns LF-normalized before content', async () => { + await writeFile(join(dir, 'a.txt'), 'a\r\nb\r\n') + const target = await fs.resolve('a.txt') + const outcome = await fs.writeText(target, 'a\nB\n') + expect(outcome.before).toBe('a\nb\n') + }) + + it('an overwrite of a BINARY prior file reports before:null (undiffable), still succeeds', async () => { + await writeFile(join(dir, 'a.bin'), Buffer.from([0x00, 0x01, 0x02])) + const target = await fs.resolve('a.bin') + const outcome = await fs.writeText(target, 'now text') + expect(outcome.operation).toBe('update') + expect(outcome.before).toBeNull() + expect(outcome.after).toBe('now text') + }) + + it('an overwrite of an INVALID-UTF-8 (non-NUL) prior file reports before:null, still succeeds', async () => { + // 0xff is never valid UTF-8 but is not a NUL, so it exercises the decoder's + // fatal-throw path (not the NUL-scan short-circuit): an undiffable prior file + // still yields a successful write with no before-content basis. + await writeFile(join(dir, 'a.bin'), Buffer.from([0x68, 0xff, 0x69])) + const target = await fs.resolve('a.bin') + const outcome = await fs.writeText(target, 'now valid') + expect(outcome.operation).toBe('update') + expect(outcome.before).toBeNull() + expect(outcome.after).toBe('now valid') + }) + it('releases per-target mutation locks after success and failure', async () => { const target = await fs.resolve('a.txt') await fs.writeText(target, 'created', { kind: 'createIfAbsent' }) @@ -242,6 +285,17 @@ describe('editText', () => { expect(await readFile(join(dir, 'a.txt'), 'utf8')).toBe('hello there') }) + it('reports before/after content (the applied-hunk basis), LF-normalized', async () => { + await writeFile(join(dir, 'a.txt'), 'a\r\nOLD\r\nb\r\n') + const target = await fs.resolve('a.txt') + const outcome = await fs.editText(target, { oldString: 'OLD', newString: 'NEW', replaceAll: false }) + expect(outcome.before).toBe('a\nOLD\nb\n') + expect(outcome.after).toBe('a\nNEW\nb\n') + // The written file keeps the original CRLF endings (before/after are the + // LF-normalized diff basis, not the on-disk bytes). + expect(await readFile(join(dir, 'a.txt'), 'utf8')).toBe('a\r\nNEW\r\nb\r\n') + }) + it('checks the stale version BEFORE literal matching', async () => { await writeFile(join(dir, 'a.txt'), 'hello world') const target = await fs.resolve('a.txt') diff --git a/packages/fs/fs/src/types.ts b/packages/fs/fs/src/types.ts index 15a58ee93b..2bc6f27765 100644 --- a/packages/fs/fs/src/types.ts +++ b/packages/fs/fs/src/types.ts @@ -101,6 +101,14 @@ export interface FsWriteOutcome { operation: 'create' | 'update' /** Opaque version of the file after the write. */ version: FsVersion + /** + * The file's content BEFORE the write, or `null` when the file did not exist + * (a create). Raw storage text (LF-normalized by the backend), never a diff — + * a consumer computes the result-time contextual diff from `before`/`after`. + */ + before: string | null + /** The file's content AFTER the write (the text that was written). */ + after: string } /** A literal-replacement edit request. */ @@ -121,6 +129,14 @@ export interface FsEditOutcome { replaceAll: boolean /** Opaque version of the file after the edit. */ version: FsVersion + /** + * The file's content BEFORE the edit. Raw storage text (LF-normalized by the + * backend), never a diff — a consumer computes the result-time contextual diff + * (the applied hunk with context) from `before`/`after`. + */ + before: string + /** The file's content AFTER the edit. */ + after: string } /** diff --git a/packages/fs/fs/tests/service.spec.ts b/packages/fs/fs/tests/service.spec.ts index a0032afdee..bba7420a55 100644 --- a/packages/fs/fs/tests/service.spec.ts +++ b/packages/fs/fs/tests/service.spec.ts @@ -39,14 +39,15 @@ class FakeFileSystem extends FileSystem { return (async function* () { yield content })() } override async writeText(target: FsTarget, content: string, _expected?: FsWriteIntent): Promise { - const existed = this.files.has(target.targetKey) + const before = this.files.get(target.targetKey) ?? null this.files.set(target.targetKey, content) - return { operation: existed ? 'update' : 'create', version: FsVersion('v2') } + return { operation: before !== null ? 'update' : 'create', version: FsVersion('v2'), before, after: content } } override async editText(target: FsTarget, edit: FsEditRequest): Promise { const content = this.files.get(target.targetKey) ?? '' - this.files.set(target.targetKey, content.split(edit.oldString).join(edit.newString)) - return { replacements: 1, replaceAll: edit.replaceAll, version: FsVersion('v3') } + const after = content.split(edit.oldString).join(edit.newString) + this.files.set(target.targetKey, after) + return { replacements: 1, replaceAll: edit.replaceAll, version: FsVersion('v3'), before: content, after } } } diff --git a/packages/fs/tool-fs/package.json b/packages/fs/tool-fs/package.json index 080b9a8f78..a7f71ce6fa 100644 --- a/packages/fs/tool-fs/package.json +++ b/packages/fs/tool-fs/package.json @@ -21,9 +21,13 @@ "src" ], "license": "BSD-3-Clause", + "dependencies": { + "diff": "^9.0.0" + }, "peerDependencies": { "@deepseek-ai/dsh-fs": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", + "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "@deepseek-ai/dsh-tools": "^0.0.1", "cordis": "^4.0.0-rc.6" diff --git a/packages/fs/tool-fs/src/diff.ts b/packages/fs/tool-fs/src/diff.ts new file mode 100644 index 0000000000..51d39bb3d0 --- /dev/null +++ b/packages/fs/tool-fs/src/diff.ts @@ -0,0 +1,92 @@ +/** + * Result-time contextual-diff computation for the `write`/`edit` tools. Turns a + * before/after pair of file texts into one {@link FileDiff} per applied hunk — + * each hunk's `oldText`/`newText` reconstructed from the unified-diff lines with + * ±{@link DIFF_CONTEXT} surrounding context lines, matching how claude-agent-acp + * renders an editor inline diff. + * + * This is display-only presentation vocabulary (a UI concern), so it lives in + * the model-facing tool, NOT the `dsh-fs` storage seam — the backend returns + * only the raw before/after text (storage facts) and the tool computes the diff. + * + * @module @deepseek-ai/dsh-tool-fs/src/diff + */ + +import { structuredPatch } from 'diff' +import type { FileDiff } from '@deepseek-ai/dsh-tools' +import type { JsonValue } from '@deepseek-ai/dsh-session' + +/** Context lines shown on each side of an applied hunk (matches claude-agent-acp). */ +export const DIFF_CONTEXT = 3 + +/** + * The `write`/`edit` tools' private `tool/result` `meta` payload: the applied + * contextual-diff hunks. A {@link JsonValue} (persisted with the session log, so + * `presentResult` reproduces the diff card on replay). The producing tool owns + * this shape; the bridge only sees the opaque `meta` and the tool narrows it back + * via {@link diffsFromMeta}. + */ +export type FsDiffMeta = { diffs: FileDiff[] } + +/** + * Compute one {@link FileDiff} per hunk between `before` and `after`, each + * carrying the applied change plus {@link DIFF_CONTEXT} context lines. Returns an + * empty array when the texts are identical (no hunks). For a scattered + * `replace_all` edit the patch yields multiple hunks, so multiple `FileDiff`s + * come back — matching the editor rendering one diff block per site. + * + * Each hunk's `oldText` is its `-` (removed) and context lines joined by `\n`; + * `newText` is its `+` (added) and context lines. A hunk with no old lines + * (a pure insertion) reports `oldText: null` (nothing to diff against), mirroring + * the call-time card's new-file convention. The unified-diff "\ No newline at end + * of file" markers are dropped — they annotate the patch, not file content. + */ +export function computeHunkDiffs(path: string, before: string, after: string): FileDiff[] { + const patch = structuredPatch('', '', before, after, undefined, undefined, { context: DIFF_CONTEXT }) + const diffs: FileDiff[] = [] + for (const hunk of patch.hunks) { + const oldLines: string[] = [] + const newLines: string[] = [] + for (const line of hunk.lines) { + // The unified-diff marker for a missing trailing newline annotates the + // patch, not the content — skip it so it never leaks into a diff block. + if (line.startsWith('\\')) continue + const text = line.slice(1) + if (line.startsWith('-')) { + oldLines.push(text) + } else if (line.startsWith('+')) { + newLines.push(text) + } else { + // A context (unchanged) line appears on both sides. + oldLines.push(text) + newLines.push(text) + } + } + diffs.push({ path, oldText: oldLines.length > 0 ? oldLines.join('\n') : null, newText: newLines.join('\n') }) + } + return diffs +} + +/** Whether `value` is a valid {@link FileDiff} (defensive narrowing from opaque `meta`). */ +function isFileDiff(value: JsonValue): value is FileDiff & JsonValue { + if (typeof value !== 'object' || value === null || Array.isArray(value)) return false + const { path, oldText, newText } = value + return typeof path === 'string' + && (oldText === null || typeof oldText === 'string') + && typeof newText === 'string' +} + +/** + * Narrow an opaque `tool/result` `meta` back to this tool's {@link FileDiff} + * hunks, or `undefined` when it is absent/malformed. `presentResult` runs on + * arbitrary logged `meta` (possibly from an older shape or a hand-edited log), so + * it validates defensively rather than trusting the payload — a bad `meta` yields + * no diff card (the generic result rendering) instead of a thrown presenter. + */ +export function diffsFromMeta(meta: JsonValue | undefined): FileDiff[] | undefined { + if (typeof meta !== 'object' || meta === null || Array.isArray(meta)) return undefined + const diffs = meta.diffs + if (!Array.isArray(diffs) || diffs.length === 0 || !diffs.every(isFileDiff)) return undefined + return diffs +} + diff --git a/packages/fs/tool-fs/src/edit.ts b/packages/fs/tool-fs/src/edit.ts index 7450bd895a..1a39cb63dd 100644 --- a/packages/fs/tool-fs/src/edit.ts +++ b/packages/fs/tool-fs/src/edit.ts @@ -14,11 +14,12 @@ import type { Context } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' -import type { DiffCallView } from '@deepseek-ai/dsh-tools' +import type { DiffCallView, DiffResultView, ToolResult } from '@deepseek-ai/dsh-tools' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { FsEditOutcome } from '@deepseek-ai/dsh-fs' import type {} from '@deepseek-ai/dsh-fs' import type {} from '@deepseek-ai/dsh-system-prompt' +import { computeHunkDiffs, diffsFromMeta, type FsDiffMeta } from './diff.ts' import { sessionCwd } from './session-cwd.ts' /** Validated `edit` arguments after defaulting. */ @@ -66,7 +67,7 @@ export function applyEditTool(ctx: Context): void { new_string: { type: 'string', required: true, description: 'Literal replacement text. Use an empty string to delete the match.' }, replace_all: { type: 'boolean', description: 'Replace all matches. Defaults to false; when false, old_string must appear exactly once.' }, }, - async execute(args, exec): Promise { + async execute(args, exec): Promise<{ content: ContentBlock[]; meta?: FsDiffMeta }> { const input = parseEditArgs(args) const cwd = sessionCwd(exec) const target = await ctx.fs.resolve(input.filePath, cwd !== undefined ? { cwd } : undefined) @@ -82,7 +83,17 @@ export function applyEditTool(ctx: Context): void { ) // Record the observed version (a no-op when no policy plugin listens). ctx.emit('fs/observed', target, outcome.version, exec) - return [{ type: 'text', text: formatEditOutput(target.displayPath, outcome) }] + // The result-time applied-hunk diff (before→after with context lines). An + // edit always changes content (parseEditArgs requires old_string to differ + // and editText matches at least once), so there is always at least one hunk. + // The bridge renders these as an inline diff that supersedes the call-time + // snippet; the display path is the model-facing `file_path` (the bridge + // relativizes it). + const diffs = computeHunkDiffs(input.filePath, outcome.before, outcome.after) + return { + content: [{ type: 'text', text: formatEditOutput(target.displayPath, outcome) }], + meta: { diffs }, + } }, // Pure display: a diff card of the literal replacement (old_string → // new_string), derived from the call args. `oldText: old_string || null` @@ -96,5 +107,15 @@ export function applyEditTool(ctx: Context): void { locations: [{ path: args.file_path }], } }, + // Result-time display: the applied contextual-diff hunks carried on `meta`. + // On success with diffs, a `diff` result card supersedes the call-time + // snippet; on error (nothing applied) or malformed meta, fall through to the + // generic "updated successfully" rendering. + presentResult(args, result: ToolResult): DiffResultView | undefined { + if (result.isError) return undefined + const diffs = diffsFromMeta(result.meta) + if (diffs === undefined) return undefined + return { card: 'diff', title: `Edit ${args.file_path}`, diffs } + }, })) } diff --git a/packages/fs/tool-fs/src/index.ts b/packages/fs/tool-fs/src/index.ts index e9f384a96c..0aaa0c1a7a 100644 --- a/packages/fs/tool-fs/src/index.ts +++ b/packages/fs/tool-fs/src/index.ts @@ -32,6 +32,8 @@ export { applyWriteTool, formatWriteOutput, parseWriteArgs } from './write.ts' export { applyEditTool, formatEditOutput, parseEditArgs } from './edit.ts' export { READ_MAX_BYTES, READ_MAX_LINE_LENGTH, buildWindow, formatReadOutput } from './read-render.ts' export type { FileReadOutcome, FileTextLine, ReadWindow, WindowResult } from './read-render.ts' +export { DIFF_CONTEXT, computeHunkDiffs, diffsFromMeta } from './diff.ts' +export type { FsDiffMeta } from './diff.ts' /** Cordis plugin name used by loader diagnostics. */ export const name = 'tool-fs' diff --git a/packages/fs/tool-fs/src/write.ts b/packages/fs/tool-fs/src/write.ts index 69844c55f6..bf58f21e6c 100644 --- a/packages/fs/tool-fs/src/write.ts +++ b/packages/fs/tool-fs/src/write.ts @@ -13,11 +13,12 @@ import type { Context } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' -import type { DiffCallView } from '@deepseek-ai/dsh-tools' +import type { DiffCallView, DiffResultView, ToolResult } from '@deepseek-ai/dsh-tools' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { FsWriteOutcome } from '@deepseek-ai/dsh-fs' import type {} from '@deepseek-ai/dsh-fs' import type {} from '@deepseek-ai/dsh-system-prompt' +import { computeHunkDiffs, diffsFromMeta, type FsDiffMeta } from './diff.ts' import { sessionCwd } from './session-cwd.ts' /** Validate value constraints the schema DSL can't express. */ @@ -51,7 +52,7 @@ export function applyWriteTool(ctx: Context): void { file_path: { type: 'string', required: true, description: 'Path to write, resolved by the filesystem backend.' }, content: { type: 'string', required: true, description: 'Full UTF-8 text content to write.' }, }, - async execute(args, exec): Promise { + async execute(args, exec): Promise<{ content: ContentBlock[]; meta?: FsDiffMeta }> { const input = parseWriteArgs(args) const cwd = sessionCwd(exec) const target = await ctx.fs.resolve(input.filePath, cwd !== undefined ? { cwd } : undefined) @@ -61,7 +62,14 @@ export function applyWriteTool(ctx: Context): void { const outcome = await ctx.fs.writeText(target, input.content, intent, exec.signal) // Record the observed version (a no-op when no policy plugin listens). ctx.emit('fs/observed', target, outcome.version, exec) - return [{ type: 'text', text: formatWriteOutput(target.displayPath, outcome) }] + // Result-time contextual diff ONLY for an overwrite (a before-version + // exists). A create has no "before" — `outcome.before` is null — so it + // carries no result diff, leaving just the call-time whole-file card. + const diffs = outcome.before !== null ? computeHunkDiffs(input.filePath, outcome.before, outcome.after) : [] + return { + content: [{ type: 'text', text: formatWriteOutput(target.displayPath, outcome) }], + ...diffs.length > 0 ? { meta: { diffs } } : {}, + } }, // Pure display: a diff card (an editor renders write as a new-file / full- // replace diff). `oldText: null` — a call-time presenter has no access to the @@ -75,5 +83,15 @@ export function applyWriteTool(ctx: Context): void { locations: [{ path: args.file_path }], } }, + // Result-time display: for an OVERWRITE, the applied contextual-diff hunks on + // `meta` supersede the call-time whole-file snippet. A create carries no meta + // (no "before"), so this returns undefined and the call-time new-file card + // stands; an error or malformed meta also falls through to generic rendering. + presentResult(args, result: ToolResult): DiffResultView | undefined { + if (result.isError) return undefined + const diffs = diffsFromMeta(result.meta) + if (diffs === undefined) return undefined + return { card: 'diff', title: `Write ${args.file_path}`, diffs } + }, })) } diff --git a/packages/fs/tool-fs/tests/diff.spec.ts b/packages/fs/tool-fs/tests/diff.spec.ts new file mode 100644 index 0000000000..12ab7209b6 --- /dev/null +++ b/packages/fs/tool-fs/tests/diff.spec.ts @@ -0,0 +1,113 @@ +/** + * Unit tests for the result-time contextual-diff computation (`src/diff.ts`): + * the pure before/after → {@link FileDiff}[] hunk builder and the defensive + * `meta` narrowing. These pin the exact hunk reconstruction (context lines, + * multi-hunk replaceAll, pure insertion/deletion, no-op) the ACP bridge renders. + */ + +import { describe, expect, it } from 'vitest' +import { computeHunkDiffs, diffsFromMeta, DIFF_CONTEXT } from '@deepseek-ai/dsh-tool-fs' +import type { JsonValue } from '@deepseek-ai/dsh-session' + +const lines = (n: number): string => Array.from({ length: n }, (_, i) => `line${i + 1}`).join('\n') + '\n' + +describe('computeHunkDiffs', () => { + it('a single-line change yields one hunk with ±context lines on both sides', () => { + const before = lines(8) + const after = before.replace('line4', 'CHANGED') + const diffs = computeHunkDiffs('f.txt', before, after) + expect(diffs).toEqual([{ + path: 'f.txt', + oldText: 'line1\nline2\nline3\nline4\nline5\nline6\nline7', + newText: 'line1\nline2\nline3\nCHANGED\nline5\nline6\nline7', + }]) + }) + + it('a scattered replace_all yields one FileDiff PER hunk (matching per-site editor blocks)', () => { + const before = lines(20) + const after = before.replace('line3', 'A').replace('line16', 'B') + const diffs = computeHunkDiffs('f.txt', before, after) + expect(diffs).toHaveLength(2) + expect(diffs[0]?.path).toBe('f.txt') + expect(diffs[0]?.oldText).toContain('line3') + expect(diffs[0]?.newText).toContain('A') + expect(diffs[1]?.oldText).toContain('line16') + expect(diffs[1]?.newText).toContain('B') + // The two hunks are distinct sites, not one merged block. + expect(diffs[0]?.newText).not.toContain('B') + expect(diffs[1]?.newText).not.toContain('A') + }) + + it('identical before/after (a no-op) yields no hunks', () => { + expect(computeHunkDiffs('f.txt', 'same\n', 'same\n')).toEqual([]) + }) + + it('a pure insertion into empty content reports oldText null (nothing to diff against)', () => { + const diffs = computeHunkDiffs('f.txt', '', 'brand new\n') + expect(diffs).toEqual([{ path: 'f.txt', oldText: null, newText: 'brand new' }]) + }) + + it('a pure deletion of the whole file reports newText empty', () => { + const diffs = computeHunkDiffs('f.txt', 'gone\n', '') + expect(diffs).toEqual([{ path: 'f.txt', oldText: 'gone', newText: '' }]) + }) + + it('drops the "\\ No newline at end of file" marker from a no-trailing-newline change', () => { + const diffs = computeHunkDiffs('f.txt', 'x', 'y') + // The marker line (starting with "\\") must never leak into a diff block. + expect(diffs).toEqual([{ path: 'f.txt', oldText: 'x', newText: 'y' }]) + expect(diffs[0]?.oldText).not.toContain('\\') + expect(diffs[0]?.newText).not.toContain('\\') + }) + + it('uses DIFF_CONTEXT (3) surrounding lines', () => { + expect(DIFF_CONTEXT).toBe(3) + const before = lines(20) + const after = before.replace('line10', 'CHANGED') + const [diff] = computeHunkDiffs('f.txt', before, after) + // 3 context above (7,8,9) + the change + 3 below (11,12,13) = 7 lines a side. + expect(diff?.oldText?.split('\n')).toHaveLength(7) + expect(diff?.newText.split('\n')).toHaveLength(7) + expect(diff?.oldText?.split('\n')[0]).toBe('line7') + }) +}) + +describe('diffsFromMeta (defensive narrowing)', () => { + // The narrowing accepts an opaque JsonValue; a malformed payload is not a + // statically-valid JsonValue, so route every case through one cast helper that + // mirrors how a hand-edited/older session log delivers arbitrary shapes. + const m = (value: unknown): JsonValue | undefined => value as JsonValue | undefined + const good = { diffs: [{ path: 'f.txt', oldText: 'a', newText: 'b' }] } + + it('narrows a well-formed { diffs } payload', () => { + expect(diffsFromMeta(m(good))).toEqual(good.diffs) + }) + + it('accepts a diff whose oldText is null (a create-style hunk)', () => { + const meta = { diffs: [{ path: 'f.txt', oldText: null, newText: 'x' }] } + expect(diffsFromMeta(m(meta))).toEqual(meta.diffs) + }) + + it('rejects undefined / non-object / array meta', () => { + expect(diffsFromMeta(undefined)).toBeUndefined() + expect(diffsFromMeta(null)).toBeUndefined() + expect(diffsFromMeta(m('nope'))).toBeUndefined() + expect(diffsFromMeta(m([]))).toBeUndefined() + }) + + it('rejects a missing / empty / non-array diffs field', () => { + expect(diffsFromMeta(m({}))).toBeUndefined() + expect(diffsFromMeta(m({ diffs: [] }))).toBeUndefined() + expect(diffsFromMeta(m({ diffs: 'x' }))).toBeUndefined() + }) + + it('rejects a diffs array containing a malformed entry', () => { + expect(diffsFromMeta(m({ diffs: [{ path: 'f.txt', oldText: 'a' }] }))).toBeUndefined() + expect(diffsFromMeta(m({ diffs: [{ path: 1, oldText: 'a', newText: 'b' }] }))).toBeUndefined() + expect(diffsFromMeta(m({ diffs: [{ path: 'f', oldText: 5, newText: 'b' }] }))).toBeUndefined() + expect(diffsFromMeta(m({ diffs: [{ path: 'f', oldText: 'a', newText: 7 }] }))).toBeUndefined() + expect(diffsFromMeta(m({ diffs: [null] }))).toBeUndefined() + expect(diffsFromMeta(m({ diffs: ['x'] }))).toBeUndefined() + expect(diffsFromMeta(m({ diffs: [[]] }))).toBeUndefined() + }) +}) diff --git a/packages/fs/tool-fs/tests/tools.spec.ts b/packages/fs/tool-fs/tests/tools.spec.ts index 7bdedf894a..f41f587d94 100644 --- a/packages/fs/tool-fs/tests/tools.spec.ts +++ b/packages/fs/tool-fs/tests/tools.spec.ts @@ -57,16 +57,17 @@ class FakeFs extends FileSystem { override async writeText(target: FsTarget, content: string, expected?: FsWriteIntent): Promise { this.throwIfArmed() this.writeIntents.push(expected) - const existed = this.files.has(target.targetKey) + const before = this.files.get(target.targetKey) ?? null this.files.set(target.targetKey, content) - return { operation: existed ? 'update' : 'create', version: FsVersion('v2') } + return { operation: before !== null ? 'update' : 'create', version: FsVersion('v2'), before, after: content } } override async editText(target: FsTarget, edit: FsEditRequest, expected?: { version: FsVersion }): Promise { this.throwIfArmed() this.editIntents.push(expected) const content = this.files.get(target.targetKey) ?? '' - this.files.set(target.targetKey, content.split(edit.oldString).join(edit.newString)) - return { replacements: 1, replaceAll: edit.replaceAll, version: FsVersion('v3') } + const after = content.split(edit.oldString).join(edit.newString) + this.files.set(target.targetKey, after) + return { replacements: 1, replaceAll: edit.replaceAll, version: FsVersion('v3'), before: content, after } } } @@ -395,3 +396,80 @@ describe('tool-owned presentation (pure presentCall)', () => { }) }) }) + +describe('result-time contextual diff (meta + presentResult)', () => { + // An edit records the applied contextual hunk on `tool/result` meta, and the + // tool's presentResult narrows it back into a `diff` result card the bridge + // renders. Drive execute end-to-end so the meta is the REAL computed hunk. + const withContext = 'a\nb\nc\nOLD\nd\ne\nf\n' + + it('edit: execute attaches the applied hunk as meta { diffs }', async () => { + const { ctx, fs } = await setup() + const session = { header: {} } + fs.files.set('key:a.txt', withContext) + await call(ctx, 'read', { file_path: 'a.txt' }, { session }) + const result = await call(ctx, 'edit', { file_path: 'a.txt', old_string: 'OLD', new_string: 'NEW' }, { session }) + expect(result.isError).toBe(false) + expect(result.meta).toEqual({ + diffs: [{ path: 'a.txt', oldText: 'a\nb\nc\nOLD\nd\ne\nf', newText: 'a\nb\nc\nNEW\nd\ne\nf' }], + }) + }) + + it('edit: presentResult turns the meta into a diff result card', async () => { + const { ctx, fs } = await setup() + const session = { header: {} } + fs.files.set('key:a.txt', withContext) + await call(ctx, 'read', { file_path: 'a.txt' }, { session }) + const result = await call(ctx, 'edit', { file_path: 'a.txt', old_string: 'OLD', new_string: 'NEW' }, { session }) + const view = ctx.tools.get('edit')?.presentResult?.({ file_path: 'a.txt', old_string: 'OLD', new_string: 'NEW' }, result) + expect(view).toEqual({ + card: 'diff', title: 'Edit a.txt', + diffs: [{ path: 'a.txt', oldText: 'a\nb\nc\nOLD\nd\ne\nf', newText: 'a\nb\nc\nNEW\nd\ne\nf' }], + }) + }) + + it('write OVERWRITE: execute attaches a contextual hunk; presentResult renders a diff card', async () => { + const { ctx, fs } = await setup() + const session = { header: {} } + fs.files.set('key:a.txt', withContext) + await call(ctx, 'read', { file_path: 'a.txt' }, { session }) + const result = await call(ctx, 'write', { file_path: 'a.txt', content: 'a\nb\nc\nNEW\nd\ne\nf\n' }, { session }) + expect(result.isError).toBe(false) + expect(result.meta).toEqual({ diffs: [{ path: 'a.txt', oldText: 'a\nb\nc\nOLD\nd\ne\nf', newText: 'a\nb\nc\nNEW\nd\ne\nf' }] }) + const view = ctx.tools.get('write')?.presentResult?.({ file_path: 'a.txt', content: 'x' }, result) + expect(view).toEqual({ card: 'diff', title: 'Write a.txt', diffs: [{ path: 'a.txt', oldText: 'a\nb\nc\nOLD\nd\ne\nf', newText: 'a\nb\nc\nNEW\nd\ne\nf' }] }) + }) + + it('write CREATE: no before-version → no meta, presentResult returns undefined (call-time card stands)', async () => { + const { ctx } = await setup() + const session = { header: {} } + const result = await call(ctx, 'write', { file_path: 'new.txt', content: 'fresh\n' }, { session }) + expect(result.isError).toBe(false) + expect(result.meta).toBeUndefined() + expect(ctx.tools.get('write')?.presentResult?.({ file_path: 'new.txt', content: 'fresh\n' }, result)).toBeUndefined() + }) + + it('write OVERWRITE with identical content: a before exists but yields no hunk → no meta', async () => { + const { ctx, fs } = await setup() + const session = { header: {} } + fs.files.set('key:a.txt', 'same\n') + await call(ctx, 'read', { file_path: 'a.txt' }, { session }) + const result = await call(ctx, 'write', { file_path: 'a.txt', content: 'same\n' }, { session }) + expect(result.isError).toBe(false) + expect(result.meta).toBeUndefined() + }) + + it('presentResult returns undefined on an error result (nothing applied)', async () => { + const { ctx } = await setup() + const errorResult = { content: [{ type: 'text' as const, text: 'Error: boom' }], isError: true } + expect(ctx.tools.get('edit')?.presentResult?.({ file_path: 'a.txt', old_string: 'x', new_string: 'y' }, errorResult)).toBeUndefined() + expect(ctx.tools.get('write')?.presentResult?.({ file_path: 'a.txt', content: 'y' }, errorResult)).toBeUndefined() + }) + + it('presentResult returns undefined on malformed meta (defensive narrowing)', async () => { + const { ctx } = await setup() + const badMeta = { content: [{ type: 'text' as const, text: 'ok' }], isError: false, meta: { diffs: 'nope' } } + expect(ctx.tools.get('edit')?.presentResult?.({ file_path: 'a.txt', old_string: 'x', new_string: 'y' }, badMeta)).toBeUndefined() + expect(ctx.tools.get('write')?.presentResult?.({ file_path: 'a.txt', content: 'y' }, badMeta)).toBeUndefined() + }) +}) diff --git a/packages/ui/acp/acp-feature-support.md b/packages/ui/acp/acp-feature-support.md index 4d14c79f5e..6ef901f17b 100644 --- a/packages/ui/acp/acp-feature-support.md +++ b/packages/ui/acp/acp-feature-support.md @@ -99,7 +99,7 @@ Tool-call presentation is **owned by each tool** (`presentCall` / `presentResult | `ToolCallKind` mapping | S | ✅ | ✅ | ✅ | `execute`/`read`/`edit`/`other` inferred from the tool; richer mapping possible. | | `ToolCallStatus` | S | ✅ | ✅ | ✅ | `in_progress` → `completed`/`failed`. | | `content` blocks | S | ✅ | ✅ | ✅ | Text content; the description renders above the card. | -| `diff` content | S | ✅ | ✅ | ✅ | The `write`/`edit` tools declare a `diff` render intent (`presentCall` → `{ card: 'diff' }`); the bridge emits `{ type: 'diff', path, oldText, newText }` content blocks (call-time, args-derived — applied-hunk diffs are a follow-up). | +| `diff` content | S | ✅ | ✅ | ✅ | The `write`/`edit` tools declare a `diff` render intent: `presentCall` → a call-time `{ card: 'diff' }` snippet, and `presentResult` → a result-time `{ card: 'diff' }` carrying the APPLIED hunk with surrounding context lines (one hunk per `replace_all` site), computed from the before/after file text and persisted on the `tool/result` event. The bridge emits `{ type: 'diff', path, oldText, newText }` content blocks; the result hunk supersedes the call snippet. | | `terminal` content | S | ✅ | ✅ | ✅ | Via the Zed `_meta` terminal convention (see below), not the spec `terminal/*` sub-protocol. | | `locations` (follow-along) | S | ✅ | ✅ | ✅ | The `read`/`write`/`edit` tools emit `{ path, line? }` file-location hints via `presentCall`. | | `rawInput` | S | ✅ | ⚠️ | ✅ | Parsed tool args surfaced as `rawInput`. | @@ -147,7 +147,6 @@ Ranked by how commonly the reference adapters ship them and how much UX they unl 5. **Slash commands** (`available_commands_update`). 6. **MCP passthrough** (`mcpServers` on `session/new` + `mcpCapabilities`). 7. **Richer prompt content** — image / embedded `resource` blocks (needs a multimodal model path). -8. **Applied-hunk diff rendering** — the `write`/`edit` diff cards ship (call-time, args-derived: whole `old_string`→`new_string`). Result-time structured-patch hunks with surrounding context (what `claude-agent-acp` derives from a PostToolUse hook) need a new result/event shape carrying the patch — a follow-up. 9. **Usage reporting** (`usage_update`) — the harness already records token usage internally (on `assistant/message`). 10. **Editor filesystem delegation** (`fs/read_text_file` / `fs/write_text_file`) — lets the agent see unsaved buffers; lower priority since the harness has direct disk access. diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index c01c004d91..631a741447 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -66,7 +66,7 @@ import { assertNever, CallId } from '@deepseek-ai/dsh-llm' import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent' import { AgentId } from '@deepseek-ai/dsh-agent' import { SessionId } from '@deepseek-ai/dsh-session' -import type { SessionEvent, TodoItem, TurnEndReason } from '@deepseek-ai/dsh-session' +import type { JsonValue, SessionEvent, TodoItem, TurnEndReason } from '@deepseek-ai/dsh-session' import type { ToolCallKind, ToolCallView, ToolRegistry, ToolResultView, TerminalResultView } from '@deepseek-ai/dsh-tools' // Side-effect type import: declaration-merges `ctx.sessionPersistence` onto // Context (the bridge injects it and reads `list()` for load cwd validation). @@ -818,7 +818,7 @@ export function streamSessionEventUpdate( return } case 'tool/result': { - const view = presenter.result(event.data.callId, event.data.content, event.data.isError) + const view = presenter.result(event.data.callId, event.data.content, event.data.isError, event.data.meta) notify({ sessionId, update: toolResultUpdate(event.data.callId, view, event.data.isError, terminal) }) return } @@ -919,14 +919,14 @@ export class ToolPresenter { } /** Completed-state render intent for a `tool/result`; consumes the remembered `(name, args, card)`. */ - result(callId: CallId, content: ContentBlock[], isError: boolean): ToolResultView { + result(callId: CallId, content: ContentBlock[], isError: boolean, meta?: JsonValue): ToolResultView { const call = this.pending.get(callId) this.pending.delete(callId) // No remembered call (unknown/late callId) → nothing to present from; raw content. if (call === undefined) return { card: 'generic', content } let present: ToolResultView | undefined try { - present = this.tools.get(call.name)?.presentResult?.(call.args, { content, isError }) + present = this.tools.get(call.name)?.presentResult?.(call.args, { content, isError, ...meta !== undefined ? { meta } : {} }) } catch (error: unknown) { // A throwing presentResult must not break streaming/replay: log + fall back. this.onError(`acp: tool "${call.name}" presentResult threw, using raw result: ${String(error)}`) @@ -1126,7 +1126,9 @@ function terminalExitMeta(callId: string, view: TerminalResultView): TerminalExi * (the terminal card consumes them and `content` is OMITTED — a * `tool_call_update.content` REPLACES the call's content collection in Zed, so * re-sending would clobber the terminal block the call installed) and otherwise - * derives the fenced ```console fallback from `output`. + * derives the fenced ```console fallback from `output`. A `diff` result emits the + * applied-hunk `{ type: 'diff' }` content blocks, which replace the call-time + * whole-file snippet in the editor. */ function toolResultUpdate(callId: CallId, view: ToolResultView, isError: boolean, terminal: TerminalRendering): ToolCallSessionUpdate { const status = isError ? 'failed' as const : 'completed' as const @@ -1167,6 +1169,20 @@ function toolResultUpdate(callId: CallId, view: ToolResultView, isError: boolean ...view.content !== undefined ? { content: toolResultContent(view.content) } : {}, ...view.title !== undefined ? { title: view.title } : {}, } + case 'diff': { + // A result-time applied-hunk diff: emit one `{ type: 'diff' }` content block + // per hunk (mirroring the call-side diff arm). `tool_call_update.content` + // REPLACES the call's content in an editor, so these hunks supersede the + // call-time whole-file snippet the pending card installed. + const content: AcpToolCallContent[] = view.diffs.map(d => ({ type: 'diff', path: d.path, oldText: d.oldText, newText: d.newText })) + return { + sessionUpdate: 'tool_call_update', + toolCallId: callId, + status, + ...content.length > 0 ? { content } : {}, + ...view.title !== undefined ? { title: view.title } : {}, + } + } default: return assertNever(view, 'ToolResultView.card') } diff --git a/packages/ui/acp/tests/stream-update.spec.ts b/packages/ui/acp/tests/stream-update.spec.ts index 9c1898b3c1..0a9974e049 100644 --- a/packages/ui/acp/tests/stream-update.spec.ts +++ b/packages/ui/acp/tests/stream-update.spec.ts @@ -618,6 +618,92 @@ describe('diff-card mapping', () => { }) }) +describe('result-time diff card (REAL fs edit tool → tool_call_update diff blocks)', () => { + // Drive the SHIPPING fs edit tool through the bridge: the pending tool/call + // installs the call-time snippet, then the tool/result carries the tool's + // computed applied-hunk `meta`, which presentResult narrows into a `diff` + // result card the bridge forwards as `{ type: 'diff' }` content blocks. Uses + // the REAL tool (not a stand-in) per the anti-mock convention, mirroring the + // call-side diff test above. + async function fsCtx(): Promise { + const ctx = new Context() + await ctx.plugin(SystemPrompt) + await ctx.plugin(ToolRegistry) + await ctx.plugin(FsLocal) + await ctx.plugin(ToolFs) + return ctx + } + + function updatesWith(presenter: ToolPresenter, ...events: SessionEvent[]): SessionNotification['update'][] { + const out: SessionNotification['update'][] = [] + for (const event of events) streamSessionEventUpdate(SessionId('s1'), event, n => out.push(n.update), presenter) + return out + } + + it('forwards the applied-hunk meta onto the wire as tool_call_update diff content', async () => { + const ctx = await fsCtx() + const presenter = new ToolPresenter(ctx.tools) + const args = JSON.stringify({ file_path: 'src/b.ts', old_string: 'OLD', new_string: 'NEW' }) + // The applied hunk the tool would compute and persist on the result meta. + const meta = { diffs: [{ path: 'src/b.ts', oldText: 'a\nOLD\nb', newText: 'a\nNEW\nb' }] } + const [, resultUpdate] = updatesWith( + presenter, + evt('tool/call', { turn: 1, step: 1, callId: CallId('e1'), name: 'edit', arguments: args }), + evt('tool/result', { turn: 1, step: 1, callId: CallId('e1'), content: [{ type: 'text', text: 'ok' }], isError: false, meta }), + ) + expect(resultUpdate).toEqual({ + sessionUpdate: 'tool_call_update', + toolCallId: 'e1', + status: 'completed', + title: 'Edit src/b.ts', + content: [{ type: 'diff', path: 'src/b.ts', oldText: 'a\nOLD\nb', newText: 'a\nNEW\nb' }], + }) + await ctx.fiber.dispose() + }) + + it('an error result carries NO diff card (falls back to raw content)', async () => { + const ctx = await fsCtx() + const presenter = new ToolPresenter(ctx.tools) + const args = JSON.stringify({ file_path: 'src/b.ts', old_string: 'OLD', new_string: 'NEW' }) + const [, resultUpdate] = updatesWith( + presenter, + evt('tool/call', { turn: 1, step: 1, callId: CallId('e1'), name: 'edit', arguments: args }), + evt('tool/result', { turn: 1, step: 1, callId: CallId('e1'), content: [{ type: 'text', text: 'Error: boom' }], isError: true }), + ) + expect(resultUpdate).toMatchObject({ sessionUpdate: 'tool_call_update', status: 'failed' }) + expect(resultUpdate).not.toHaveProperty('content', expect.arrayContaining([expect.objectContaining({ type: 'diff' })])) + await ctx.fiber.dispose() + }) + + it('a diff result with an EMPTY diffs array and no title omits both keys (nothing to send)', () => { + // A synthetic tool whose presentResult yields a `diff` card with no hunks and + // no title — the shipping fs tools never emit this (edit always has a hunk; an + // empty write returns undefined), so a stand-in is the only way to exercise + // the empty-content AND absent-title branches of the result-side diff arm. + const emptyDiffTool: ToolDefinition = { + name: 'writer', + description: 'writes a file', + parameters: {}, + execute: async () => [], + presentCall: () => ({ card: 'diff', title: 'Write x', diffs: [{ path: 'x', oldText: null, newText: 'y' }] }), + presentResult: () => ({ card: 'diff', diffs: [] }), + } + const presenter = new ToolPresenter(registryOf(emptyDiffTool)) + const [, resultUpdate] = updatesWith( + presenter, + evt('tool/call', { turn: 1, step: 1, callId: CallId('w1'), name: 'writer', arguments: '{}' }), + evt('tool/result', { turn: 1, step: 1, callId: CallId('w1'), content: [{ type: 'text', text: 'ok' }], isError: false }), + ) + expect(resultUpdate).toEqual({ + sessionUpdate: 'tool_call_update', + toolCallId: 'w1', + status: 'completed', + }) + expect(resultUpdate).not.toHaveProperty('content') + expect(resultUpdate).not.toHaveProperty('title') + }) +}) + describe('relative-path display titles (bridge relativizes the title against the session cwd)', () => { // The bridge relativizes a file card's TITLE against the session workspace cwd // (mirroring the reference adapter's toDisplayPath), while leaving locations/ diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index d87855145f..db4b513b10 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -271,6 +271,9 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm + '@deepseek-ai/dsh-session': + specifier: workspace:^ + version: link:../session '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../system-prompt @@ -319,6 +322,10 @@ importers: version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4) packages/fs/tool-fs: + dependencies: + diff: + specifier: ^9.0.0 + version: 9.0.0 devDependencies: '@deepseek-ai/dsh-agent': specifier: workspace:^ @@ -2196,6 +2203,10 @@ packages: devlop@1.1.0: resolution: {integrity: sha512-RWmIqhcFf1lRYBvNmr7qTNuyCt/7/ns2jbpp1+PalgE/rDQcBT0fioSMUpJ93irlUhC5hrg4cYqe6U+0ImW0rA==} + diff@9.0.0: + resolution: {integrity: sha512-svtcdpS8CgJyqAjEQIXdb3OjhFVVYjzGAPO8WGCmRbrml64SPw/jJD4GoE98aR7r25A0XcgrK3F02yw9R/vhQw==} + engines: {node: '>=0.3.1'} + dts-resolver@3.0.0: resolution: {integrity: sha512-1T1f+z+4tl9XD+m+0HBgWoL/nm0bOIffyWaUuUSBlFg/86IWvfx+wjNaO/ybU0AJzG9/Mi5hBUgGV6zCmWEN7Q==} engines: {node: ^22.18.0 || >=24.0.0} @@ -4393,6 +4404,8 @@ snapshots: dependencies: dequal: 2.0.3 + diff@9.0.0: {} + dts-resolver@3.0.0(oxc-resolver@11.20.0): optionalDependencies: oxc-resolver: 11.20.0 From dee2dee4022f87357e3059c45f24620dd288d463 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 18:00:16 +0800 Subject: [PATCH 21/32] fix(tool-fs): CRLF-safe write diff, opaque meta, doc sync Address the applied-hunk-diffs review: - CRLF write overwrite emitted bogus every-line-changed hunks: write's `before` was LF-normalized but `after` kept the raw model content, so a CRLF rewrite of an LF file diffed every line. Normalize write's `after` to LF so both sides share the diff basis (edit already did). Regression test proves it fails on the raw-after path. - The tool-private `meta` payload is now typed `unknown` (opaque) at every seam instead of `JsonValue`. This drops the `dsh-tools -> dsh-session` package edge that existed only to name the type, and removes the `FileDiff` index signature that had been widening the type solely for JsonValue-assignability. Serializability is still enforced at runtime by `Session.append`'s isJsonValue check, which was always the real guard. - Sync the docs the new result/meta surface left stale: ToolResultView's diff card + ToolExecutionResult.meta in tools.md/session.md type-equiv blocks, the acp/tools READMEs, and the adding-a-tool cookbook; regenerate the cordis catalog and module graph. --- docs/cookbook/adding-a-tool.md | 3 +- docs/cordis-catalog/events-and-services.md | 6 ++-- docs/core-data-structures/session.md | 2 +- docs/core-data-structures/tools.md | 4 +-- docs/module-graph.md | 3 +- ...26-07-02-result-time-applied-hunk-diffs.md | 8 ++--- packages/core/session/src/types.ts | 15 +++++---- packages/core/tools/README.md | 4 +-- packages/core/tools/package.json | 2 -- packages/core/tools/src/index.ts | 31 +++++++------------ packages/fs/fs-local/src/fsio.ts | 2 +- packages/fs/fs-local/src/index.ts | 6 +++- packages/fs/fs-local/tests/filesystem.spec.ts | 12 ++++--- packages/fs/fs/src/types.ts | 6 ++-- packages/fs/tool-fs/src/diff.ts | 18 +++++------ packages/ui/acp/README.md | 2 +- packages/ui/acp/src/index.ts | 4 +-- pnpm-lock.yaml | 3 -- 18 files changed, 63 insertions(+), 68 deletions(-) diff --git a/docs/cookbook/adding-a-tool.md b/docs/cookbook/adding-a-tool.md index c5e7931871..84247e3f3d 100644 --- a/docs/cookbook/adding-a-tool.md +++ b/docs/cookbook/adding-a-tool.md @@ -36,6 +36,7 @@ Registration is effect-based: disposing the plugin fiber unregisters the tool (w - **Args are validated for you.** `defineTool` validates the model-generated `arguments` against the `SchemaSpec` before `execute` runs (type, required keys, enum membership, nested objects/arrays — [runtime arg validation](../rfc/implemented/architecture/2026-06-11-runtime-arg-validation.md)), so inside `execute` the args already match `InferArgs`. You still hand-check value constraints the DSL can't express (non-empty strings, positive numbers, cross-field rules); throw a descriptive Error for those. Raw JSON-Schema tools registered directly (MCP) are NOT validated by the harness — they validate their own input. - **Throwing means isError.** The registry catches anything `execute()` throws and returns `{isError: true}` to the model. Use that for infrastructure failures (bad input, spawn errors, aborts) — but REPORT domain failures in the result text instead (e.g. tool-bash returns `[exit code: 9]` with `isError: false`: the model decides what a failing command means). - **Honor `exec.signal`.** Cancel in-flight work when it fires. +- **Attach durable card data with `meta` (optional).** `execute` may return `{ content, meta }` instead of a bare `ContentBlock[]` — `meta` is a JSON-serializable payload the core treats as opaque, persisted on the `tool/result` event and handed back to your `presentResult` (so a card that needs more than `args`, like `write`/`edit`'s applied-hunk diff, survives a session replay). Keep UI-only data here, never in the model-facing `content`. - **Use `exec.agent` for async notifications.** `agent.inject(content, {source: {kind: 'plugin', plugin: ''}})` appends durable context the NEXT model request sees — it is not a wake-up (an idle agent stays idle). Guard against disposed agents (try/catch). ## Long-running work @@ -58,7 +59,7 @@ Both methods return a **`card`-tagged render intent** — pick the card kind tha - `{ card: 'generic', title, kind?, rawInput?, content?, locations? }` — the default. Set `kind` for an icon (`read`/`search`/…); set `locations: [{ path, line? }]` for any file your tool touches so a capable editor follows along / jumps to it. - `{ card: 'terminal', title, description?, cwd? }` — your call IS a shell command. `title` is the command, `description` renders above the terminal card. (tool-bash.) - `{ card: 'diff', title, diffs, locations? }` — your call creates or modifies a file. `diffs: [{ path, oldText, newText }]` (`oldText: null` for a new file) renders as an inline diff card. (tool-fs `write`/`edit`.) -- `presentResult(args, { content, isError })` → a `ToolResultView` (the COMPLETED card): `{ card: 'generic', title?, content? }` or `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the run's captured output + exit — the bridge shows an exit pill and derives a fenced ` ```console ` fallback for editors without the terminal capability). +- `presentResult(args, { content, isError, meta? })` → a `ToolResultView` (the COMPLETED card): `{ card: 'generic', title?, content? }`, `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the run's captured output + exit — the bridge shows an exit pill and derives a fenced ` ```console ` fallback for editors without the terminal capability), or `{ card: 'diff', title?, diffs }` (the APPLIED hunks of a completed file mutation, computed from the before/after content — `write`/`edit` attach the hunks via the `meta` channel and read them back here). `result.meta` is your tool's own optional presentation payload, attached from `execute` (see below) and persisted so a replay reproduces the card. Hard rules (they bite if broken): diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index 90419feeb9..6854e56e2e 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -337,7 +337,7 @@ A tool was registered or unregistered (the available tool set changed). 'tools/change'(): void ``` -Source: [`packages/core/tools/src/index.ts:49`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:48`](../../packages/core/tools/src/index.ts) #### `tools/execute` — waterfall @@ -349,7 +349,7 @@ Waterfall around every tool execution — the single seam where sandbox, permiss Types: [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:44`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:43`](../../packages/core/tools/src/index.ts) ## Services @@ -547,7 +547,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:370`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:363`](../../packages/core/tools/src/index.ts) ## Inherited tier (cordis core + loader/hmr/timer) diff --git a/docs/core-data-structures/session.md b/docs/core-data-structures/session.md index 789890680f..41cad4660d 100644 --- a/docs/core-data-structures/session.md +++ b/docs/core-data-structures/session.md @@ -32,7 +32,7 @@ interface SessionEventMap { */ 'assistant/message': { turn: number; step: number; content: ContentBlock[]; usage?: TokenUsage } 'tool/call': { turn: number; step: number; callId: CallId; name: string; arguments: string } - 'tool/result': { turn: number; step: number; callId: CallId; content: ContentBlock[]; isError: boolean; error?: { name: string; code: string }; meta?: JsonValue } + 'tool/result': { turn: number; step: number; callId: CallId; content: ContentBlock[]; isError: boolean; error?: { name: string; code: string }; meta?: unknown } /** Steering content injected between steps of a running turn. */ 'steering/message': { turn: number; content: ContentBlock[]; source: MessageSource } /** diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index ac765d25cd..4f9be38e21 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -106,7 +106,7 @@ interface ToolExecutionResult { * {@link ToolResult} for `presentResult`. Opaque {@link JsonValue}; absent when * the tool attached none or the call failed. */ - meta?: JsonValue + meta?: unknown } ``` @@ -117,7 +117,7 @@ A waterfall listener receives `(exec, next)`: call `next()` to proceed (possibly How a tool wants its call shown in a UI (an editor tool-call card, a CLI log line), provider-neutral so a tool describes itself without depending on any client protocol. `presentCall`/`presentResult` return a **`card`-tagged render intent** — a discriminated union a UI bridge switches on: - `ToolCallView` (pending): `{ card: 'generic', title, kind?, rawInput?, content?, locations? }` (the default card; `locations` is `{ path, line? }[]` files the call reads/modifies, for editor follow-along), `{ card: 'terminal', title, description?, cwd? }` (a shell command → a terminal card), or `{ card: 'diff', title, diffs, locations? }` (a file create/modify → an inline diff card; `diffs` is `{ path, oldText, newText }[]`, `oldText: null` for a new file). -- `ToolResultView` (completed): `{ card: 'generic', title?, content? }` or `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit; a capable UI shows an exit-status pill, an incapable one gets a fenced ` ```console ` fallback the bridge derives from `output`). +- `ToolResultView` (completed): `{ card: 'generic', title?, content? }`, `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit; a capable UI shows an exit-status pill, an incapable one gets a fenced ` ```console ` fallback the bridge derives from `output`), or `{ card: 'diff', title?, diffs }` (a completed file mutation → the APPLIED hunks with context lines, one entry per changed site, computed from the before/after file content — distinct from the call-time whole-snippet `diff`, which it supersedes). `ToolCallKind` (`'read' | 'edit' | 'delete' | 'move' | 'search' | 'execute' | 'fetch' | 'other'`) picks an icon on a generic card. `FileLocation` (`{ path, line? }`) and `FileDiff` (`{ path, oldText, newText }`) are the shared file-card vocabulary. The design is pinned in [the render-intent-union RFC](../rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md); the ACP bridge maps a `diff` card to a `{ type: 'diff' }` content block, a `terminal` card to the `_meta` terminal convention, and relativizes a file card's title against the session cwd. diff --git a/docs/module-graph.md b/docs/module-graph.md index d09fd76eaf..8de73f8d80 100644 --- a/docs/module-graph.md +++ b/docs/module-graph.md @@ -40,7 +40,6 @@ graph TD session-persistence-sqlite --> session-persistence tools --> agent tools --> llm - tools --> session tools --> system-prompt ui-stdio --> agent ui-stdio --> llm @@ -130,7 +129,7 @@ graph TD | `invariants` | `agent`, `llm`, `session` | | `session-persistence-jsonl` | `session`, `session-persistence` | | `session-persistence-sqlite` | `session`, `session-persistence` | -| `tools` | `agent`, `llm`, `session`, `system-prompt` | +| `tools` | `agent`, `llm`, `system-prompt` | | `ui-stdio` | `agent`, `llm`, `session` | | `acp` | `agent`, `llm`, `session`, `session-persistence`, `tools` | | `agent-loop` | `agent`, `llm`, `session`, `session-persistence`, `system-prompt`, `tools` | diff --git a/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md index 591dbb4779..20328041f0 100644 --- a/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md +++ b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md @@ -16,13 +16,13 @@ Add a **persisted, tool-private presentation channel** so a tool's `execute` can ### 1. A `meta` channel on the tool result (core) -`ToolDefinition.execute` may now return either its model-facing `ContentBlock[]` (unchanged, the common case) OR `{ content: ContentBlock[]; meta?: JsonValue }`: +`ToolDefinition.execute` may now return either its model-facing `ContentBlock[]` (unchanged, the common case) OR `{ content: ContentBlock[]; meta?: unknown }`: ```ts ignore-check -type ToolExecuteReturn = ContentBlock[] | { content: ContentBlock[]; meta?: JsonValue } +type ToolExecuteReturn = ContentBlock[] | { content: ContentBlock[]; meta?: unknown } ``` -`meta` is an opaque, JSON-serializable payload the core never interprets. The registry threads it onto the `tool/result` **session event** (`{ …, meta?: JsonValue }`), so it is persisted with the log; on replay the same `meta` is read back and handed to `presentResult` via a widened `ToolResult` (`{ content, isError, meta? }`). Because the payload lives in the event log, the diff reproduces on session reload / snapshot replay **for free** — the event-sourcing guarantee, not a re-computation. `JsonValue` is exported from `dsh-session` (paired with the existing `isJsonValue` predicate that already gates every event's serializability at `append`). +`meta` is an opaque payload the core never interprets — typed `unknown` at every seam (the tool that produced it owns and narrows its shape). It MUST be JSON-serializable: the registry threads it onto the `tool/result` **session event**, and `Session.append` runtime-validates all event data with the existing `isJsonValue` predicate, so a non-serializable `meta` is rejected at the source. On replay the same `meta` is read back and handed to `presentResult` via a widened `ToolResult` (`{ content, isError, meta? }`). Because the payload lives in the event log, the diff reproduces on session reload / snapshot replay **for free** — the event-sourcing guarantee, not a re-computation. Typing `meta` as `unknown` (rather than a shared serializable-value type) keeps the tools core free of a dependency it would otherwise take just to name the type, and the runtime `isJsonValue` gate — not the static type — is what actually enforces serializability. This is the general shape ("a tool attaches durable result presentation"), not an fs-specific one — any tool can use it. @@ -39,7 +39,7 @@ Per the [capability-seam split](2026-06-13-capability-seams.md), the storage bac ### The diff algorithm — a third-party runtime dependency over vendoring -Computing hunks-with-context is a solved problem with sharp edge cases (grouping, context coalescing, the trailing-newline marker). Rather than hand-roll it, `dsh-tool-fs` takes a runtime dependency on the npm [`diff`](https://www.npmjs.com/package/diff) package (v9, ships its own types) and uses its `structuredPatch`. The repo's default is to vendor Cordis-framework source, but that policy is about the *framework*; a leaf tool package taking a small, well-known, self-typed utility dependency is the same shape as `dsh-acp` depending on `@agentclientprotocol/sdk`. Vendoring a diff algorithm would be re-implementing a battle-tested one for no benefit — the [pre-release "foundation over blast radius"](../../../../AGENTS.md) reasoning does not argue for re-deriving standard algorithms. The dependency is pinned and its output is normalized in one small module (`packages/fs/tool-fs/src/diff.ts`). +Computing hunks-with-context is a solved problem with sharp edge cases (grouping, context coalescing, the trailing-newline marker). Rather than hand-roll it, `dsh-tool-fs` takes a runtime dependency on the npm [`diff`](https://www.npmjs.com/package/diff) package (a `^9.0.0` range, exact-pinned by the lockfile; it ships its own types) and uses its `structuredPatch`. The repo's default is to vendor Cordis-framework source, but that policy is about the *framework*; a leaf tool package taking a small, well-known, self-typed utility dependency is the same shape as `dsh-acp` depending on `@agentclientprotocol/sdk`. Vendoring a diff algorithm would be re-implementing a battle-tested one for no benefit — the [pre-release "foundation over blast radius"](../../../../AGENTS.md) reasoning does not argue for re-deriving standard algorithms. The dependency's output is normalized in one small module (`packages/fs/tool-fs/src/diff.ts`). ## Non-goals diff --git a/packages/core/session/src/types.ts b/packages/core/session/src/types.ts index 6a9eaa0fc1..62c3a33e49 100644 --- a/packages/core/session/src/types.ts +++ b/packages/core/session/src/types.ts @@ -1,6 +1,5 @@ import type { Branded } from '@deepseek-ai/dsh-brand' import type { CallId, ContentBlock, MessageSource, StreamChunk, TokenUsage } from '@deepseek-ai/dsh-llm' -import type { JsonValue } from './json.ts' /** Identifies one session in the store (and its persistence artifacts). */ export type SessionId = Branded<'SessionId'> @@ -213,14 +212,14 @@ export interface SessionEventMap { 'tool/call': { turn: number; step: number; callId: CallId; name: string; arguments: string } /** * A completed tool call's model-facing result, plus an optional tool-private - * `meta` presentation payload. `meta` is opaque to the core — the producing - * tool owns its shape and reads it back in `presentResult` — and is a - * {@link JsonValue} so it persists in the durable log and reproduces on replay - * (a UI bridge renders the identical card from a loaded session). Absent unless - * the tool attaches one (e.g. `dsh-tool-fs` carries its result-time contextual - * diff here). + * `meta` presentation payload. `meta` is opaque to the core (`unknown` — the + * producing tool owns its shape and reads it back in `presentResult`) but MUST + * be JSON-serializable: `Session.append` runtime-validates all event data with + * `isJsonValue`, so a non-serializable `meta` is rejected at the source, and the + * durable log reproduces the identical card on replay. Absent unless the tool + * attaches one (e.g. `dsh-tool-fs` carries its result-time contextual diff here). */ - 'tool/result': { turn: number; step: number; callId: CallId; content: ContentBlock[]; isError: boolean; error?: { name: string; code: string }; meta?: JsonValue } + 'tool/result': { turn: number; step: number; callId: CallId; content: ContentBlock[]; isError: boolean; error?: { name: string; code: string }; meta?: unknown } /** Steering content injected between steps of a running turn. */ 'steering/message': { turn: number; content: ContentBlock[]; source: MessageSource } /** diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index f6694269ea..c8a3ddba4b 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -26,7 +26,7 @@ Tool registry and execution waterfall. Tool plugins register their schemas and e - `ToolDefinition` — `ToolSchema` + `execute(args, exec): Promise` (the bare array is the model-facing content; the object form additionally attaches an opaque, JSON-serializable `meta` presentation payload persisted on the `tool/result` event and handed back to `presentResult`), plus optional `presentCall(args)` / `presentResult(args, result)` for tool-owned UI presentation (see below). - `ToolExecution` — one pending tool call: `{ callId, name, arguments, agent?, signal? }`. -- `ToolExecutionResult` — outcome: `{ callId, content, isError, error? }`. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text (the loop forwards it onto the `tool/result` session event for retry/sandbox plugins and replay). +- `ToolExecutionResult` — outcome: `{ callId, content, isError, error?, meta? }`. On failure with a `HarnessError`, `error: { name, code }` carries the structured failure class alongside the model-facing text. `meta` is the tool's opaque presentation payload from a successful `execute` (the object return form); the loop forwards both `error` and `meta` onto the `tool/result` session event (for retry/sandbox plugins, replay, and result-card rendering). - `ToolCallView` / `ToolResultView` — provider-neutral `card`-tagged render intents a tool returns from `presentCall` / `presentResult` to own how a UI renders ITS calls (see "Tool-owned UI presentation"). ### Extension points @@ -81,7 +81,7 @@ A tool owns how ITS calls render in a UI (an editor's tool-call card, a CLI log - `{ card: 'terminal', title?, output?, exitCode?, signal? }` — a terminal run's captured `output` and exit status. A capable UI shows an exit-status pill; an incapable UI gets a fenced ` ```console ` fallback the BRIDGE derives from `output` (the tool does not encode the fences). - `{ card: 'diff', title?, diffs }` — a completed file mutation as an inline diff. `diffs` is `FileDiff[]` — the APPLIED hunks with surrounding context (one entry per changed site), computed from the before/after file content, distinct from the call-time whole-snippet `diff`. Used by `write`/`edit`; a `tool_call_update.content` replaces the call's content, so this supersedes the pending snippet. -Returning `undefined` (or omitting a method) tells a UI to fall back to a generic presentation (title = tool name, raw args as input, raw result content). Both methods must be **pure and side-effect-free**: a UI may call them during live streaming AND during a session-log replay, so they depend only on their arguments. `result.meta` is the tool's own optional presentation payload (`JsonValue`), attached by `execute` (see below) and persisted on the `tool/result` event, so a `presentResult` reading it stays replay-deterministic (the same `meta` is read back from the log). With `defineTool`, `args` is the typed `InferArgs` shape; the helper soft-validates before calling (a malformed/older logged arg shape yields `undefined` rather than throwing, since display must never crash a replay). The views are provider-neutral — the ACP bridge (`dsh-acp`) maps each `card` to ACP `tool_call`/`tool_call_update` wire fields (a `diff` card to a `{ type: 'diff' }` content block, a `terminal` card to the `_meta` terminal convention), and relativizes a file card's title against the session cwd. See the render-intent-union RFC (`docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md`) and the applied-hunk-diffs RFC (`docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md`); `dsh-tool-bash` (terminal) and `dsh-tool-fs` (diff/generic) are the reference implementations. +Returning `undefined` (or omitting a method) tells a UI to fall back to a generic presentation (title = tool name, raw args as input, raw result content). Both methods must be **pure and side-effect-free**: a UI may call them during live streaming AND during a session-log replay, so they depend only on their arguments. `result.meta` is the tool's own optional presentation payload (opaque `unknown`, JSON-serializable), attached by `execute` (see below) and persisted on the `tool/result` event, so a `presentResult` reading it stays replay-deterministic (the same `meta` is read back from the log). With `defineTool`, `args` is the typed `InferArgs` shape; the helper soft-validates before calling (a malformed/older logged arg shape yields `undefined` rather than throwing, since display must never crash a replay). The views are provider-neutral — the ACP bridge (`dsh-acp`) maps each `card` to ACP `tool_call`/`tool_call_update` wire fields (a `diff` card to a `{ type: 'diff' }` content block, a `terminal` card to the `_meta` terminal convention), and relativizes a file card's title against the session cwd. See the render-intent-union RFC (`docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md`) and the applied-hunk-diffs RFC (`docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md`); `dsh-tool-bash` (terminal) and `dsh-tool-fs` (diff/generic) are the reference implementations. ```ts import { defineTool } from '@deepseek-ai/dsh-tools' diff --git a/packages/core/tools/package.json b/packages/core/tools/package.json index 05394ea118..a6d3bbe0ca 100644 --- a/packages/core/tools/package.json +++ b/packages/core/tools/package.json @@ -24,14 +24,12 @@ "peerDependencies": { "@deepseek-ai/dsh-agent": "^0.0.1", "@deepseek-ai/dsh-llm": "^0.0.1", - "@deepseek-ai/dsh-session": "^0.0.1", "@deepseek-ai/dsh-system-prompt": "^0.0.1", "cordis": "^4.0.0-rc.6" }, "devDependencies": { "@deepseek-ai/dsh-agent": "workspace:^", "@deepseek-ai/dsh-llm": "workspace:^", - "@deepseek-ai/dsh-session": "workspace:^", "@deepseek-ai/dsh-system-prompt": "workspace:^", "cordis": "^4.0.0-rc.6" } diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 0aa19a7b9a..acae166abe 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -11,7 +11,6 @@ import { Context, Service } from 'cordis' import type { CallId, ContentBlock, ToolSchema } from '@deepseek-ai/dsh-llm' import { HarnessError } from '@deepseek-ai/dsh-llm' import type { Agent } from '@deepseek-ai/dsh-agent' -import type { JsonValue } from '@deepseek-ai/dsh-session' import type {} from '@deepseek-ai/dsh-system-prompt' export { @@ -88,13 +87,6 @@ export interface FileDiff { oldText: string | null /** Content after the change. */ newText: string - /** - * Index signature so a `FileDiff` is a valid {@link JsonValue} member — a tool - * persists result-time diffs as `tool/result` `meta`, which must round-trip - * through the session log. Every declared field is already JSON-compatible; - * this only makes the structural compatibility explicit. - */ - [key: string]: string | null } /** @@ -247,12 +239,13 @@ export interface DiffResultView { /** * What a tool's `execute` returns. The bare {@link ContentBlock}`[]` form is the * common case (model-facing content only); the object form additionally attaches - * a tool-private `meta` presentation payload ({@link JsonValue}) that the - * registry threads onto the `tool/result` session event and hands back to the - * tool's `presentResult`. `meta` is opaque to the core — the tool owns its shape - * and validates it on the way out — and persists so replay reproduces the card. + * a tool-private `meta` presentation payload that the registry threads onto the + * `tool/result` session event and hands back to the tool's `presentResult`. + * `meta` is opaque to the core (`unknown` — the tool owns and narrows its shape), + * and MUST be JSON-serializable: it persists on the durable log (the session + * enforces this at `append`), so replay reproduces the card. */ -export type ToolExecuteReturn = ContentBlock[] | { content: ContentBlock[]; meta?: JsonValue } +export type ToolExecuteReturn = ContentBlock[] | { content: ContentBlock[]; meta?: unknown } /** A registered tool: its schema plus the execution function. */ export interface ToolDefinition extends ToolSchema { @@ -286,10 +279,10 @@ export interface ToolResult { /** * The tool-private presentation payload the tool attached from `execute` (via * the object return form), threaded verbatim from the `tool/result` event. - * Opaque {@link JsonValue}; the tool narrows it back to its own shape. Absent - * when the tool attached none. + * Opaque (`unknown`); the tool narrows it back to its own shape. Absent when + * the tool attached none. */ - meta?: JsonValue + meta?: unknown } /** One pending tool call, as it flows through the execution waterfall. */ @@ -336,10 +329,10 @@ export interface ToolExecutionResult { /** * The tool-private presentation payload from a successful `execute` (the object * return form). Threaded onto the `tool/result` session event and back into - * {@link ToolResult} for `presentResult`. Opaque {@link JsonValue}; absent when - * the tool attached none or the call failed. + * {@link ToolResult} for `presentResult`. Opaque (`unknown`); absent when the + * tool attached none or the call failed. */ - meta?: JsonValue + meta?: unknown } /** diff --git a/packages/fs/fs-local/src/fsio.ts b/packages/fs/fs-local/src/fsio.ts index 9b77678f82..e2aead2bfc 100644 --- a/packages/fs/fs-local/src/fsio.ts +++ b/packages/fs/fs-local/src/fsio.ts @@ -429,4 +429,4 @@ export function applyLiteralEdit( return { content: content.split(oldNorm).join(newNorm), replacements } } -export { restoreLineEndings } +export { normalizeLineEndings, restoreLineEndings } diff --git a/packages/fs/fs-local/src/index.ts b/packages/fs/fs-local/src/index.ts index 3ce0fa2f92..30c65058c9 100644 --- a/packages/fs/fs-local/src/index.ts +++ b/packages/fs/fs-local/src/index.ts @@ -26,6 +26,7 @@ import type { } from '@deepseek-ai/dsh-fs' import { applyLiteralEdit, + normalizeLineEndings, probe, readForEdit, readTextForDiff, @@ -156,7 +157,10 @@ export class LocalFileSystem extends FileSystem { operation: existing ? 'update' : 'create', version: this.versionAfterWrite(after, target), before, - after: content, + // LF-normalized to share the diff basis with `before` (also LF): a CRLF + // overwrite must not read as every line changed. Line-ending restoration + // is a storage detail the applied-hunk diff ignores. + after: normalizeLineEndings(content), } }) } diff --git a/packages/fs/fs-local/tests/filesystem.spec.ts b/packages/fs/fs-local/tests/filesystem.spec.ts index b6686b9627..63baacd47b 100644 --- a/packages/fs/fs-local/tests/filesystem.spec.ts +++ b/packages/fs/fs-local/tests/filesystem.spec.ts @@ -203,11 +203,15 @@ describe('writeText', () => { expect(outcome.after).toBe('new body') }) - it('an overwrite of a CRLF file returns LF-normalized before content', async () => { - await writeFile(join(dir, 'a.txt'), 'a\r\nb\r\n') + it('an overwrite returns LF-normalized before AND after (a CRLF rewrite is not every-line-changed)', async () => { + // The applied-hunk diff bases on `before`/`after`; if `after` kept CRLF while + // `before` is LF-normalized, a CRLF rewrite would read as every line changed. + // Both sides are LF so only the genuinely-changed line diffs. + await writeFile(join(dir, 'a.txt'), 'a\r\nb\r\nc\r\n') const target = await fs.resolve('a.txt') - const outcome = await fs.writeText(target, 'a\nB\n') - expect(outcome.before).toBe('a\nb\n') + const outcome = await fs.writeText(target, 'a\r\nB\r\nc\r\n') + expect(outcome.before).toBe('a\nb\nc\n') + expect(outcome.after).toBe('a\nB\nc\n') }) it('an overwrite of a BINARY prior file reports before:null (undiffable), still succeeds', async () => { diff --git a/packages/fs/fs/src/types.ts b/packages/fs/fs/src/types.ts index 2bc6f27765..1b768724cf 100644 --- a/packages/fs/fs/src/types.ts +++ b/packages/fs/fs/src/types.ts @@ -103,11 +103,11 @@ export interface FsWriteOutcome { version: FsVersion /** * The file's content BEFORE the write, or `null` when the file did not exist - * (a create). Raw storage text (LF-normalized by the backend), never a diff — - * a consumer computes the result-time contextual diff from `before`/`after`. + * (a create). LF-normalized storage text (the diff basis), never a diff — a + * consumer computes the result-time contextual diff from `before`/`after`. */ before: string | null - /** The file's content AFTER the write (the text that was written). */ + /** The file's content AFTER the write, LF-normalized to share `before`'s diff basis. */ after: string } diff --git a/packages/fs/tool-fs/src/diff.ts b/packages/fs/tool-fs/src/diff.ts index 51d39bb3d0..273fe0b033 100644 --- a/packages/fs/tool-fs/src/diff.ts +++ b/packages/fs/tool-fs/src/diff.ts @@ -14,17 +14,17 @@ import { structuredPatch } from 'diff' import type { FileDiff } from '@deepseek-ai/dsh-tools' -import type { JsonValue } from '@deepseek-ai/dsh-session' /** Context lines shown on each side of an applied hunk (matches claude-agent-acp). */ export const DIFF_CONTEXT = 3 /** * The `write`/`edit` tools' private `tool/result` `meta` payload: the applied - * contextual-diff hunks. A {@link JsonValue} (persisted with the session log, so - * `presentResult` reproduces the diff card on replay). The producing tool owns - * this shape; the bridge only sees the opaque `meta` and the tool narrows it back - * via {@link diffsFromMeta}. + * contextual-diff hunks. Attached opaquely (as `unknown`) on the tool result and + * persisted with the session log — it must be JSON-serializable (the session + * validates this at `append`), so `presentResult` reproduces the diff card on + * replay. The producing tool owns this shape; the bridge only sees the opaque + * `meta` and the tool narrows it back via {@link diffsFromMeta}. */ export type FsDiffMeta = { diffs: FileDiff[] } @@ -68,9 +68,9 @@ export function computeHunkDiffs(path: string, before: string, after: string): F } /** Whether `value` is a valid {@link FileDiff} (defensive narrowing from opaque `meta`). */ -function isFileDiff(value: JsonValue): value is FileDiff & JsonValue { +function isFileDiff(value: unknown): value is FileDiff { if (typeof value !== 'object' || value === null || Array.isArray(value)) return false - const { path, oldText, newText } = value + const { path, oldText, newText } = value as Record return typeof path === 'string' && (oldText === null || typeof oldText === 'string') && typeof newText === 'string' @@ -83,9 +83,9 @@ function isFileDiff(value: JsonValue): value is FileDiff & JsonValue { * it validates defensively rather than trusting the payload — a bad `meta` yields * no diff card (the generic result rendering) instead of a thrown presenter. */ -export function diffsFromMeta(meta: JsonValue | undefined): FileDiff[] | undefined { +export function diffsFromMeta(meta: unknown): FileDiff[] | undefined { if (typeof meta !== 'object' || meta === null || Array.isArray(meta)) return undefined - const diffs = meta.diffs + const diffs = (meta as Record).diffs if (!Array.isArray(diffs) || diffs.length === 0 || !diffs.every(isFileDiff)) return undefined return diffs } diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index 32e4326b99..ac38f36f58 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -48,7 +48,7 @@ How a tool call renders in the editor is owned by the TOOL, not the bridge — t - `{ card: 'terminal', title, description?, cwd? }` — a shell command → a terminal card (see Terminal card). - `{ card: 'diff', title, diffs, locations? }` — a file create/modify → an inline diff card; `diffs` is `FileDiff[]` (`{ path, oldText, newText }`, `oldText: null` ⇒ new file). The bridge emits each diff as an ACP `{ type: 'diff', path, oldText, newText }` `tool_call.content` block, which Zed renders as an inline diff / new-file preview. -`presentResult` returns a `ToolResultView`, one of two cards: `{ card: 'generic', title?, content? }` (an optional replacement `title` and reformatted `content`) or `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit — see Terminal card). The bridge looks the definition up by name in `ctx.tools` and `switch (view.card)`es to build the ACP `tool_call`/`tool_call_update` wire shape per card; a tool that declares neither gets a generic fallback (title = tool name, raw parsed args as `rawInput`, kind inferred from the name). For example `dsh-tool-bash` returns a `terminal` card for a foreground `bash` (title = the exact `command` "ls -la src", `description` = the model description); the `dsh-tool-fs` `write`/`edit` tools return a `diff` card and `read` returns a `generic` card (`kind: 'read'`, the read window in its title — `Read foo.txt (5 - 8)` — and a `locations` entry for the file). For a file card the bridge **relativizes the title** against the session cwd (mirroring `claude-agent-acp`'s `toDisplayPath` — `Read src/foo.ts`, not the absolute path) while keeping `locations[]`/`diffs[].path` **raw** so the editor opens the real path. +`presentResult` returns a `ToolResultView`, one of three cards: `{ card: 'generic', title?, content? }` (an optional replacement `title` and reformatted `content`), `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit — see Terminal card), or `{ card: 'diff', title?, diffs }` (a completed file mutation → the APPLIED hunks with context lines computed from the before/after content, which supersede the call-time snippet). The bridge looks the definition up by name in `ctx.tools` and `switch (view.card)`es to build the ACP `tool_call`/`tool_call_update` wire shape per card; a tool that declares neither gets a generic fallback (title = tool name, raw parsed args as `rawInput`, kind inferred from the name). For example `dsh-tool-bash` returns a `terminal` card for a foreground `bash` (title = the exact `command` "ls -la src", `description` = the model description); the `dsh-tool-fs` `write`/`edit` tools return a `diff` call card and a `diff` result card, and `read` returns a `generic` card (`kind: 'read'`, the read window in its title — `Read foo.txt (5 - 8)` — and a `locations` entry for the file). For a file card the bridge **relativizes the title** against the session cwd (mirroring `claude-agent-acp`'s `toDisplayPath` — `Read src/foo.ts`, not the absolute path) while keeping `locations[]`/`diffs[].path` **raw** so the editor opens the real path. The `tool/result` session event carries only `{ callId, content, isError }` — not the tool name or args — so to call a tool's `presentResult` the bridge keeps a small per-session map from `callId` to the in-flight call's `(name, args)`, populated on `tool/call` and removed as each result is presented (it holds only currently-in-flight calls, never finished ones). This is bridge-local state — NOT a change to the event schema or a core service. The map lives on the `SessionRecord`, so two concurrent sessions never cross their in-flight tool state; a `session/load` replay uses a throwaway presenter that pairs each `tool/call` with its `tool/result` as the log replays in order, so replayed tool cards render identically to live ones. diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index 631a741447..24cdc58f19 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -66,7 +66,7 @@ import { assertNever, CallId } from '@deepseek-ai/dsh-llm' import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent' import { AgentId } from '@deepseek-ai/dsh-agent' import { SessionId } from '@deepseek-ai/dsh-session' -import type { JsonValue, SessionEvent, TodoItem, TurnEndReason } from '@deepseek-ai/dsh-session' +import type { SessionEvent, TodoItem, TurnEndReason } from '@deepseek-ai/dsh-session' import type { ToolCallKind, ToolCallView, ToolRegistry, ToolResultView, TerminalResultView } from '@deepseek-ai/dsh-tools' // Side-effect type import: declaration-merges `ctx.sessionPersistence` onto // Context (the bridge injects it and reads `list()` for load cwd validation). @@ -919,7 +919,7 @@ export class ToolPresenter { } /** Completed-state render intent for a `tool/result`; consumes the remembered `(name, args, card)`. */ - result(callId: CallId, content: ContentBlock[], isError: boolean, meta?: JsonValue): ToolResultView { + result(callId: CallId, content: ContentBlock[], isError: boolean, meta?: unknown): ToolResultView { const call = this.pending.get(callId) this.pending.delete(callId) // No remembered call (unknown/late callId) → nothing to present from; raw content. diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index db4b513b10..9b974809cf 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -271,9 +271,6 @@ importers: '@deepseek-ai/dsh-llm': specifier: workspace:^ version: link:../../llm/llm - '@deepseek-ai/dsh-session': - specifier: workspace:^ - version: link:../session '@deepseek-ai/dsh-system-prompt': specifier: workspace:^ version: link:../system-prompt From a928a5a47a92d3082c7636da41e4bfa2bfdac300 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 19:04:11 +0800 Subject: [PATCH 22/32] docs(acp): don't enumerate tool/result fields in the presenter note MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The callId→args map note said the tool/result event "carries only { callId, content, isError }" — an exhaustive field list that drifts as the event grows (it also carries error, and now meta). State the load- bearing fact instead: the event omits the tool name/args, which is why the bridge remembers them per callId. --- packages/ui/acp/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index 32e4326b99..7cb425cf74 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -50,7 +50,7 @@ How a tool call renders in the editor is owned by the TOOL, not the bridge — t `presentResult` returns a `ToolResultView`, one of two cards: `{ card: 'generic', title?, content? }` (an optional replacement `title` and reformatted `content`) or `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit — see Terminal card). The bridge looks the definition up by name in `ctx.tools` and `switch (view.card)`es to build the ACP `tool_call`/`tool_call_update` wire shape per card; a tool that declares neither gets a generic fallback (title = tool name, raw parsed args as `rawInput`, kind inferred from the name). For example `dsh-tool-bash` returns a `terminal` card for a foreground `bash` (title = the exact `command` "ls -la src", `description` = the model description); the `dsh-tool-fs` `write`/`edit` tools return a `diff` card and `read` returns a `generic` card (`kind: 'read'`, the read window in its title — `Read foo.txt (5 - 8)` — and a `locations` entry for the file). For a file card the bridge **relativizes the title** against the session cwd (mirroring `claude-agent-acp`'s `toDisplayPath` — `Read src/foo.ts`, not the absolute path) while keeping `locations[]`/`diffs[].path` **raw** so the editor opens the real path. -The `tool/result` session event carries only `{ callId, content, isError }` — not the tool name or args — so to call a tool's `presentResult` the bridge keeps a small per-session map from `callId` to the in-flight call's `(name, args)`, populated on `tool/call` and removed as each result is presented (it holds only currently-in-flight calls, never finished ones). This is bridge-local state — NOT a change to the event schema or a core service. The map lives on the `SessionRecord`, so two concurrent sessions never cross their in-flight tool state; a `session/load` replay uses a throwaway presenter that pairs each `tool/call` with its `tool/result` as the log replays in order, so replayed tool cards render identically to live ones. +The `tool/result` session event does not carry the tool name or args — so to call a tool's `presentResult` the bridge keeps a small per-session map from `callId` to the in-flight call's `(name, args)`, populated on `tool/call` and removed as each result is presented (it holds only currently-in-flight calls, never finished ones). This is bridge-local state — NOT a change to the event schema or a core service. The map lives on the `SessionRecord`, so two concurrent sessions never cross their in-flight tool state; a `session/load` replay uses a throwaway presenter that pairs each `tool/call` with its `tool/result` as the log replays in order, so replayed tool cards render identically to live ones. ## Terminal card (capability-gated) From f86e0bedecd3d82c3ba5a8f328f8064bfb2370b1 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 19:05:46 +0800 Subject: [PATCH 23/32] docs(tools): sync ToolExecutionResult.meta comment to `unknown` MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The pasted type-equiv block's JSDoc still said the meta payload is `{@link JsonValue}`; the source comment is `unknown` (the meta channel is opaque at the seam). verify-type-equiv compares type structure, not the comment, so the drift slipped through — align the doc comment. --- docs/core-data-structures/tools.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index 4f9be38e21..04d8c33ce7 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -103,8 +103,8 @@ interface ToolExecutionResult { /** * The tool-private presentation payload from a successful `execute` (the object * return form). Threaded onto the `tool/result` session event and back into - * {@link ToolResult} for `presentResult`. Opaque {@link JsonValue}; absent when - * the tool attached none or the call failed. + * {@link ToolResult} for `presentResult`. Opaque (`unknown`); absent when the + * tool attached none or the call failed. */ meta?: unknown } From 4d36c0466bd41d9d8693d5c29c195a84d67562f7 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 19:20:14 +0800 Subject: [PATCH 24/32] docs(acp): drop tool/result field enumeration in ToolPresenter comment Same stale enumeration as the presenter-note fix, in the ToolPresenter JSDoc: it said the tool/result event "carries only { callId, content, isError }". The event also carries error and meta; the load-bearing fact is that it omits the tool name/args (why the presenter remembers them per callId). State that instead of an exhaustive list that drifts. --- packages/ui/acp/src/index.ts | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index c01c004d91..231848de01 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -869,11 +869,11 @@ const noTerminalRendering: TerminalRendering = { enabled: false, cwd: undefined * by name in the registry and applies a generic fallback when a tool defines * neither. The returned view is what {@link streamSessionEventUpdate} switches on. * - * The `tool/result` session event carries only `{ callId, content, isError }` — - * NOT the tool name or args — so to call a tool's `presentResult` (which needs - * both), the presenter remembers each `tool/call`'s `{ name, args, card }` keyed - * by callId and looks it up on the matching result. The map is bridge-LOCAL (not - * a change to the event schema or a core service): one presenter per live session + * The `tool/result` session event does NOT carry the tool name or args — so to + * call a tool's `presentResult` (which needs both), the presenter remembers each + * `tool/call`'s `{ name, args, card }` keyed by callId and looks it up on the + * matching result. The map is bridge-LOCAL (not a change to the event schema or a + * core service): one presenter per live session * (and a throwaway per `session/load` replay), and each entry is removed when its * result arrives. In the normal loop a `tool/call` is always followed by a * `tool/result` (the registry turns even a thrown tool into an isError result), From 53b215c646d47adebefa51f0ac1bf06770dc82cf Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 20:52:36 +0800 Subject: [PATCH 25/32] fix(tool-fs): write always renders a diff card on the completed update MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A Write CREATE rendered its completed tool_call_update as the model-facing result TEXT (`……Created file`), which — because an ACP tool_call_update.content REPLACES the call's content — clobbered the new-file diff the pending call installed. So Zed showed the diff, then replaced it with raw XML-ish text; only overwrite/edit looked right (their result re-sends a diff). write's presentResult now ALWAYS returns a diff card for a successful write: the applied contextual hunk from `meta` when there is one (overwrite), else an args-derived whole-file diff (`oldText: null`) for a create or an unchanged-content overwrite. This matches claude-agent-acp, where the create diff rides on the update and no result text replaces it. An error still falls through to generic rendering so its message shows. edit is unchanged (it always has a hunk; no whole-file fallback). Re-recorded fs-write / fs-write-overwrite goldens; the create's completed update is now a {type:'diff'} block, not the XML result text. --- ...26-07-02-result-time-applied-hunk-diffs.md | 2 +- .../fs-write-overwrite/session.jsonl | 269 ++++++++---------- .../fs-write-overwrite/stdout.golden.jsonl | 83 ++---- .../tests/snapshots/fs-write/session.jsonl | 190 +++++++------ .../snapshots/fs-write/stdout.golden.jsonl | 14 +- packages/fs/tool-fs/src/write.ts | 14 +- packages/fs/tool-fs/tests/tools.spec.ts | 28 +- 7 files changed, 292 insertions(+), 308 deletions(-) diff --git a/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md index 20328041f0..caa10f0de3 100644 --- a/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md +++ b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md @@ -31,7 +31,7 @@ This is the general shape ("a tool attaches durable result presentation"), not a Per the [capability-seam split](2026-06-13-capability-seams.md), the storage backend returns only **storage facts** and the model-facing tool owns **presentation**: - `dsh-fs` widens `FsEditOutcome` with `{ before: string; after: string }` and `FsWriteOutcome` with `{ before: string | null; after: string }` (`before: null` ⇒ a create, or an existing-but-undiffable binary/non-UTF-8 file). The local backend already holds both texts at write time; it returns them as raw LF-normalized text, with **no diff/UI concept** entering the seam. -- `dsh-tool-fs` computes the contextual hunk from before/after and attaches it as `meta: { diffs: FileDiff[] }`. A result diff is emitted only when a before-version exists — edit always; write on overwrite; **a create emits none** (there is no before), matching `claude-agent-acp`'s empty `structuredPatch` on create. A failed/aborted/policy-rejected mutation applied nothing, so it carries no `meta` and renders no result diff. +- `dsh-tool-fs` computes the contextual hunk from before/after and attaches it as `meta: { diffs: FileDiff[] }`. A contextual hunk is computed only when a before-version exists — edit always; write on overwrite; a create has no before, matching `claude-agent-acp`'s empty `structuredPatch` on create. But the completed `tool_call_update` is ALWAYS a `diff` card for a successful mutation: an ACP `tool_call_update.content` REPLACES the call's content, so rendering the model-facing result text would clobber the pending diff. So `write`'s result falls back to an args-derived whole-file diff (`oldText: null`) when it has no contextual hunk (a create, or an overwrite whose content is unchanged), and `edit` — which always changes content — always has a hunk. A failed/aborted/policy-rejected mutation applied nothing, so it carries no `meta` and falls through to the generic error rendering (its message must show). ### 3. The bridge renders a `diff` result card diff --git a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl index 591a8ec940..8ad253a949 100644 --- a/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write-overwrite/session.jsonl @@ -1,145 +1,124 @@ -{"type":"session","version":0,"id":"9209a848-ea39-4f7f-b0ec-a59495c7da4b","createdAt":1783069543123,"cwd":"/tmp/acp-snap-cwd-MA4o8Q"} -{"type":"turn/start","seq":0,"time":1783069543128,"data":{"turn":1,"trigger":{"kind":"message","source":{"kind":"user"}}}} -{"type":"user/message","seq":1,"time":1783069543128,"data":{"content":[{"type":"text","text":"First use the read tool to read data.txt in the current directory. Then use the write tool (NOT bash) to replace its entire contents with exactly the single line: replaced. 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reply"}}} +{"type":"assistant/chunk","seq":79,"time":1783082853042,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" with"}}} +{"type":"assistant/chunk","seq":80,"time":1783082853042,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" exactly"}}} +{"type":"assistant/chunk","seq":81,"time":1783082853042,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":" \""}}} +{"type":"assistant/chunk","seq":82,"time":1783082853042,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"D"}}} +{"type":"assistant/chunk","seq":83,"time":1783082853042,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"ONE"}}} +{"type":"assistant/chunk","seq":84,"time":1783082853078,"data":{"turn":1,"step":2,"chunk":{"type":"reasoning-delta","index":0,"text":"\"."}}} +{"type":"assistant/chunk","seq":85,"time":1783082853078,"data":{"turn":1,"step":2,"chunk":{"type":"block-start","index":1,"blockType":"text"}}} +{"type":"assistant/chunk","seq":86,"time":1783082853078,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"D"}}} +{"type":"assistant/chunk","seq":87,"time":1783082853078,"data":{"turn":1,"step":2,"chunk":{"type":"text-delta","index":1,"text":"ONE"}}} +{"type":"assistant/chunk","seq":88,"time":1783082853078,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":0,"block":{"type":"reasoning","text":"The file was created successfully. Now I just need to reply with exactly \"DONE\"."}}}} +{"type":"assistant/chunk","seq":89,"time":1783082853078,"data":{"turn":1,"step":2,"chunk":{"type":"block-end","index":1,"block":{"type":"text","text":"DONE"}}}} +{"type":"assistant/chunk","seq":90,"time":1783082853078,"data":{"turn":1,"step":2,"chunk":{"type":"usage","usage":{"inputTokens":126,"outputTokens":21,"cacheReadTokens":2304,"reasoningTokens":18}}}} +{"type":"assistant/chunk","seq":91,"time":1783082853079,"data":{"turn":1,"step":2,"chunk":{"type":"finish","reason":{"kind":"stop"}}}} +{"type":"assistant/message","seq":92,"time":1783082853079,"data":{"turn":1,"step":2,"content":[{"type":"reasoning","text":"The file was created successfully. Now I just need to reply with exactly \"DONE\"."},{"type":"text","text":"DONE"}],"usage":{"inputTokens":126,"outputTokens":21,"cacheReadTokens":2304,"reasoningTokens":18}},"sourceEventSeqs":[66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91],"surfaceOp":"append"} +{"type":"step/end","seq":93,"time":1783082853079,"data":{"turn":1,"step":2}} +{"type":"turn/end","seq":94,"time":1783082853079,"data":{"turn":1,"reason":{"kind":"completed"}}} diff --git a/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl b/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl index 5b4d170e18..ba9d2e691f 100644 --- a/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl +++ b/examples/acp-agent/tests/snapshots/fs-write/stdout.golden.jsonl @@ -27,21 +27,23 @@ {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" the"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" word"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" \""}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"D"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"ONE"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"\"."}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_ICLusq2lV6YYBtn1szVM9454","title":"Write notes.txt","kind":"edit","status":"in_progress","locations":[{"path":"notes.txt"}],"content":[{"type":"diff","path":"notes.txt","oldText":null,"newText":"hello world"}]}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_ICLusq2lV6YYBtn1szVM9454","status":"completed","content":[{"type":"content","content":{"type":"text","text":"{{cwd}}/notes.txt\nfile\n\nCreated file\n"}}]}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"File"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call","toolCallId":"call_00_4aj3gzzSDsP64mCcrn8k4591","title":"Write notes.txt","kind":"edit","status":"in_progress","locations":[{"path":"notes.txt"}],"content":[{"type":"diff","path":"notes.txt","oldText":null,"newText":"hello world"}]}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"tool_call_update","toolCallId":"call_00_4aj3gzzSDsP64mCcrn8k4591","status":"completed","content":[{"type":"diff","path":"notes.txt","oldText":null,"newText":"hello world"}],"title":"Write notes.txt"}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"The"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" file"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" was"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" created"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" successfully"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":"."}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" Now"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" I"}}}} -{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" should"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" just"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" need"}}}} +{"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" to"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" reply"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" with"}}}} {"jsonrpc":"2.0","method":"session/update","params":{"sessionId":"{{sessionId}}","update":{"sessionUpdate":"agent_thought_chunk","content":{"type":"text","text":" exactly"}}}} diff --git a/packages/fs/tool-fs/src/write.ts b/packages/fs/tool-fs/src/write.ts index bf58f21e6c..7886dcd8d6 100644 --- a/packages/fs/tool-fs/src/write.ts +++ b/packages/fs/tool-fs/src/write.ts @@ -83,14 +83,18 @@ export function applyWriteTool(ctx: Context): void { locations: [{ path: args.file_path }], } }, - // Result-time display: for an OVERWRITE, the applied contextual-diff hunks on - // `meta` supersede the call-time whole-file snippet. A create carries no meta - // (no "before"), so this returns undefined and the call-time new-file card - // stands; an error or malformed meta also falls through to generic rendering. + // Result-time display: a `diff` card so the completed `tool_call_update` + // re-installs the diff rather than the model-facing result text (an ACP + // `tool_call_update.content` REPLACES the call's content, so a text result + // would clobber the pending diff card). An OVERWRITE uses the applied + // contextual hunks on `meta`; a CREATE has no `meta` (no prior content), so + // its whole-file new-file diff is derived from `args.content` (replay-safe, + // matching the call-time card). An error falls through to generic rendering + // so its message shows. presentResult(args, result: ToolResult): DiffResultView | undefined { if (result.isError) return undefined const diffs = diffsFromMeta(result.meta) - if (diffs === undefined) return undefined + ?? [{ path: args.file_path, oldText: null, newText: args.content }] return { card: 'diff', title: `Write ${args.file_path}`, diffs } }, })) diff --git a/packages/fs/tool-fs/tests/tools.spec.ts b/packages/fs/tool-fs/tests/tools.spec.ts index f41f587d94..5fd2a533d7 100644 --- a/packages/fs/tool-fs/tests/tools.spec.ts +++ b/packages/fs/tool-fs/tests/tools.spec.ts @@ -440,16 +440,21 @@ describe('result-time contextual diff (meta + presentResult)', () => { expect(view).toEqual({ card: 'diff', title: 'Write a.txt', diffs: [{ path: 'a.txt', oldText: 'a\nb\nc\nOLD\nd\ne\nf', newText: 'a\nb\nc\nNEW\nd\ne\nf' }] }) }) - it('write CREATE: no before-version → no meta, presentResult returns undefined (call-time card stands)', async () => { + it('write CREATE: no before-version → no meta, but presentResult still renders a whole-file diff card', async () => { + // A create has no prior content (no `meta`), yet the completed card must be a + // `diff` — an ACP tool_call_update.content REPLACES the call's content, so a + // non-diff result would clobber the pending new-file diff. The whole-file diff + // is derived from the args (oldText:null), replay-safe. const { ctx } = await setup() const session = { header: {} } const result = await call(ctx, 'write', { file_path: 'new.txt', content: 'fresh\n' }, { session }) expect(result.isError).toBe(false) expect(result.meta).toBeUndefined() - expect(ctx.tools.get('write')?.presentResult?.({ file_path: 'new.txt', content: 'fresh\n' }, result)).toBeUndefined() + const view = ctx.tools.get('write')?.presentResult?.({ file_path: 'new.txt', content: 'fresh\n' }, result) + expect(view).toEqual({ card: 'diff', title: 'Write new.txt', diffs: [{ path: 'new.txt', oldText: null, newText: 'fresh\n' }] }) }) - it('write OVERWRITE with identical content: a before exists but yields no hunk → no meta', async () => { + it('write OVERWRITE with identical content: a before exists but yields no hunk → no meta, presentResult falls back to a whole-file diff', async () => { const { ctx, fs } = await setup() const session = { header: {} } fs.files.set('key:a.txt', 'same\n') @@ -457,6 +462,8 @@ describe('result-time contextual diff (meta + presentResult)', () => { const result = await call(ctx, 'write', { file_path: 'a.txt', content: 'same\n' }, { session }) expect(result.isError).toBe(false) expect(result.meta).toBeUndefined() + const view = ctx.tools.get('write')?.presentResult?.({ file_path: 'a.txt', content: 'same\n' }, result) + expect(view).toEqual({ card: 'diff', title: 'Write a.txt', diffs: [{ path: 'a.txt', oldText: null, newText: 'same\n' }] }) }) it('presentResult returns undefined on an error result (nothing applied)', async () => { @@ -466,10 +473,21 @@ describe('result-time contextual diff (meta + presentResult)', () => { expect(ctx.tools.get('write')?.presentResult?.({ file_path: 'a.txt', content: 'y' }, errorResult)).toBeUndefined() }) - it('presentResult returns undefined on malformed meta (defensive narrowing)', async () => { + it('edit presentResult returns undefined on malformed meta (defensive narrowing)', async () => { + // edit has no whole-file fallback (only a literal replacement), so a malformed + // meta yields the generic "updated successfully" rendering. const { ctx } = await setup() const badMeta = { content: [{ type: 'text' as const, text: 'ok' }], isError: false, meta: { diffs: 'nope' } } expect(ctx.tools.get('edit')?.presentResult?.({ file_path: 'a.txt', old_string: 'x', new_string: 'y' }, badMeta)).toBeUndefined() - expect(ctx.tools.get('write')?.presentResult?.({ file_path: 'a.txt', content: 'y' }, badMeta)).toBeUndefined() + }) + + it('write presentResult falls back to a whole-file diff on malformed meta (never leaks the result text)', async () => { + // write always renders a diff card so the completed update can't clobber the + // pending diff with the model-facing text; a malformed meta falls back to the + // args-derived whole-file diff, same as a create. + const { ctx } = await setup() + const badMeta = { content: [{ type: 'text' as const, text: 'ok' }], isError: false, meta: { diffs: 'nope' } } + const view = ctx.tools.get('write')?.presentResult?.({ file_path: 'a.txt', content: 'y' }, badMeta) + expect(view).toEqual({ card: 'diff', title: 'Write a.txt', diffs: [{ path: 'a.txt', oldText: null, newText: 'y' }] }) }) }) From da1d7f281d9d4833f41c574d1cf5413c4ce18ded Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 21:26:50 +0800 Subject: [PATCH 26/32] docs(tools): DiffResultView.diffs may be a whole-file diff, not only hunks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The write-diff-card fix made write's presentResult return an args-derived whole-file diff (oldText:null) for a create / unchanged overwrite, but the DiffResultView contract and its mirrored docs still said `diffs` is ALWAYS the applied contextual hunks computed from before/after. Correct the type JSDoc, the write execute-side comment, and the four mirrored surfaces (tools.md, tools README, acp-feature-support, adding-a-tool cookbook) to say: typically the applied hunks, or a whole-file diff when there is no before-image (a create) — and that a mutation returns the diff result even when it duplicates the call-time card, since a tool_call_update.content replace would otherwise clobber the diff with the model-facing text. Regenerate the cordis catalog (source line shift). --- docs/cookbook/adding-a-tool.md | 2 +- docs/cordis-catalog/events-and-services.md | 2 +- docs/core-data-structures/tools.md | 2 +- packages/core/tools/README.md | 2 +- packages/core/tools/src/index.ts | 18 ++++++++++-------- packages/fs/tool-fs/src/write.ts | 5 +++-- packages/ui/acp/acp-feature-support.md | 2 +- 7 files changed, 18 insertions(+), 15 deletions(-) diff --git a/docs/cookbook/adding-a-tool.md b/docs/cookbook/adding-a-tool.md index 84247e3f3d..836473e5de 100644 --- a/docs/cookbook/adding-a-tool.md +++ b/docs/cookbook/adding-a-tool.md @@ -59,7 +59,7 @@ Both methods return a **`card`-tagged render intent** — pick the card kind tha - `{ card: 'generic', title, kind?, rawInput?, content?, locations? }` — the default. Set `kind` for an icon (`read`/`search`/…); set `locations: [{ path, line? }]` for any file your tool touches so a capable editor follows along / jumps to it. - `{ card: 'terminal', title, description?, cwd? }` — your call IS a shell command. `title` is the command, `description` renders above the terminal card. (tool-bash.) - `{ card: 'diff', title, diffs, locations? }` — your call creates or modifies a file. `diffs: [{ path, oldText, newText }]` (`oldText: null` for a new file) renders as an inline diff card. (tool-fs `write`/`edit`.) -- `presentResult(args, { content, isError, meta? })` → a `ToolResultView` (the COMPLETED card): `{ card: 'generic', title?, content? }`, `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the run's captured output + exit — the bridge shows an exit pill and derives a fenced ` ```console ` fallback for editors without the terminal capability), or `{ card: 'diff', title?, diffs }` (the APPLIED hunks of a completed file mutation, computed from the before/after content — `write`/`edit` attach the hunks via the `meta` channel and read them back here). `result.meta` is your tool's own optional presentation payload, attached from `execute` (see below) and persisted so a replay reproduces the card. +- `presentResult(args, { content, isError, meta? })` → a `ToolResultView` (the COMPLETED card): `{ card: 'generic', title?, content? }`, `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the run's captured output + exit — the bridge shows an exit pill and derives a fenced ` ```console ` fallback for editors without the terminal capability), or `{ card: 'diff', title?, diffs }` (a completed file mutation — the applied hunks computed from the before/after content when there is a before-image, else a whole-file diff for a create; `write`/`edit` attach the hunks via the `meta` channel and read them back here). A mutation tool returns the `diff` result even when it duplicates the call-time card, because an ACP `tool_call_update.content` REPLACES the call's content — a non-diff result would clobber the pending diff. `result.meta` is your tool's own optional presentation payload, attached from `execute` (see below) and persisted so a replay reproduces the card. Hard rules (they bite if broken): diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index 6854e56e2e..5553592ba0 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -547,7 +547,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:363`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:365`](../../packages/core/tools/src/index.ts) ## Inherited tier (cordis core + loader/hmr/timer) diff --git a/docs/core-data-structures/tools.md b/docs/core-data-structures/tools.md index 04d8c33ce7..355eefc2e7 100644 --- a/docs/core-data-structures/tools.md +++ b/docs/core-data-structures/tools.md @@ -117,7 +117,7 @@ A waterfall listener receives `(exec, next)`: call `next()` to proceed (possibly How a tool wants its call shown in a UI (an editor tool-call card, a CLI log line), provider-neutral so a tool describes itself without depending on any client protocol. `presentCall`/`presentResult` return a **`card`-tagged render intent** — a discriminated union a UI bridge switches on: - `ToolCallView` (pending): `{ card: 'generic', title, kind?, rawInput?, content?, locations? }` (the default card; `locations` is `{ path, line? }[]` files the call reads/modifies, for editor follow-along), `{ card: 'terminal', title, description?, cwd? }` (a shell command → a terminal card), or `{ card: 'diff', title, diffs, locations? }` (a file create/modify → an inline diff card; `diffs` is `{ path, oldText, newText }[]`, `oldText: null` for a new file). -- `ToolResultView` (completed): `{ card: 'generic', title?, content? }`, `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit; a capable UI shows an exit-status pill, an incapable one gets a fenced ` ```console ` fallback the bridge derives from `output`), or `{ card: 'diff', title?, diffs }` (a completed file mutation → the APPLIED hunks with context lines, one entry per changed site, computed from the before/after file content — distinct from the call-time whole-snippet `diff`, which it supersedes). +- `ToolResultView` (completed): `{ card: 'generic', title?, content? }`, `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit; a capable UI shows an exit-status pill, an incapable one gets a fenced ` ```console ` fallback the bridge derives from `output`), or `{ card: 'diff', title?, diffs }` (a completed file mutation → the change to show, typically the applied hunks with context lines computed from the before/after content, or a whole-file diff when there is no before-image — e.g. a file create. A `tool_call_update`'s content REPLACES the call's content, so a mutation tool returns this even when it duplicates the call-time snippet, to keep the result from clobbering the diff with result text). `ToolCallKind` (`'read' | 'edit' | 'delete' | 'move' | 'search' | 'execute' | 'fetch' | 'other'`) picks an icon on a generic card. `FileLocation` (`{ path, line? }`) and `FileDiff` (`{ path, oldText, newText }`) are the shared file-card vocabulary. The design is pinned in [the render-intent-union RFC](../rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md); the ACP bridge maps a `diff` card to a `{ type: 'diff' }` content block, a `terminal` card to the `_meta` terminal convention, and relativizes a file card's title against the session cwd. diff --git a/packages/core/tools/README.md b/packages/core/tools/README.md index c8a3ddba4b..aecbcd7d45 100644 --- a/packages/core/tools/README.md +++ b/packages/core/tools/README.md @@ -79,7 +79,7 @@ A tool owns how ITS calls render in a UI (an editor's tool-call card, a CLI log - `presentResult(args, result): ToolResultView | undefined` — the COMPLETED state, given the same `args` and the `{ content, isError, meta? }` result, one of: - `{ card: 'generic', title?, content? }` — an optional replacement `title` and reformatted `content`. - `{ card: 'terminal', title?, output?, exitCode?, signal? }` — a terminal run's captured `output` and exit status. A capable UI shows an exit-status pill; an incapable UI gets a fenced ` ```console ` fallback the BRIDGE derives from `output` (the tool does not encode the fences). - - `{ card: 'diff', title?, diffs }` — a completed file mutation as an inline diff. `diffs` is `FileDiff[]` — the APPLIED hunks with surrounding context (one entry per changed site), computed from the before/after file content, distinct from the call-time whole-snippet `diff`. Used by `write`/`edit`; a `tool_call_update.content` replaces the call's content, so this supersedes the pending snippet. + - `{ card: 'diff', title?, diffs }` — a completed file mutation as an inline diff. `diffs` is `FileDiff[]` — typically the applied hunks with surrounding context computed from the before/after content, or a whole-file diff (`oldText: null`) when there is no before-image (a file create). Used by `write`/`edit`; a `tool_call_update.content` replaces the call's content, so a mutation tool returns this even when it duplicates the call-time snippet (else the result text would clobber the pending diff). Returning `undefined` (or omitting a method) tells a UI to fall back to a generic presentation (title = tool name, raw args as input, raw result content). Both methods must be **pure and side-effect-free**: a UI may call them during live streaming AND during a session-log replay, so they depend only on their arguments. `result.meta` is the tool's own optional presentation payload (opaque `unknown`, JSON-serializable), attached by `execute` (see below) and persisted on the `tool/result` event, so a `presentResult` reading it stays replay-deterministic (the same `meta` is read back from the log). With `defineTool`, `args` is the typed `InferArgs` shape; the helper soft-validates before calling (a malformed/older logged arg shape yields `undefined` rather than throwing, since display must never crash a replay). The views are provider-neutral — the ACP bridge (`dsh-acp`) maps each `card` to ACP `tool_call`/`tool_call_update` wire fields (a `diff` card to a `{ type: 'diff' }` content block, a `terminal` card to the `_meta` terminal convention), and relativizes a file card's title against the session cwd. See the render-intent-union RFC (`docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md`) and the applied-hunk-diffs RFC (`docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md`); `dsh-tool-bash` (terminal) and `dsh-tool-fs` (diff/generic) are the reference implementations. diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index acae166abe..43cd860734 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -220,19 +220,21 @@ export interface TerminalResultView { /** * A completed file mutation rendered as an inline diff card, the *result-time* - * analogue of {@link DiffCallView}. Set by a tool whose `execute` applied a - * file change (e.g. `write`, `edit`): `diffs` are the APPLIED hunks computed - * from the before/after file content (one entry per hunk, each with surrounding - * context lines), so the editor shows the real change with context — distinct - * from the call-time whole-snippet {@link DiffCallView}. A `tool_call_update`'s - * content REPLACES the call's content in an editor, so this result diff - * supersedes the pending snippet. + * analogue of {@link DiffCallView}. Set by a tool whose `execute` applied a file + * change (e.g. `write`, `edit`): `diffs` are the change to show — typically the + * APPLIED hunks computed from the before/after content (one entry per hunk, each + * with surrounding context lines), so the editor shows the real change in place; + * a tool with no before-image (e.g. a file create) may instead give a whole-file + * diff (`oldText: null`). A `tool_call_update`'s content REPLACES the call's + * content in an editor, so a mutation tool returns this even when it duplicates + * the call-time snippet — otherwise the model-facing result text would replace + * (clobber) the pending diff card. */ export interface DiffResultView { card: 'diff' /** Replacement title for the completed call. Omit to keep the pending-state title. */ title?: string - /** One entry per applied hunk (a contextual diff), in file order. */ + /** The change to show, in file order — applied contextual hunks, or a whole-file diff when there is no before-image. */ diffs: FileDiff[] } diff --git a/packages/fs/tool-fs/src/write.ts b/packages/fs/tool-fs/src/write.ts index 7886dcd8d6..1054e2ff2f 100644 --- a/packages/fs/tool-fs/src/write.ts +++ b/packages/fs/tool-fs/src/write.ts @@ -62,9 +62,10 @@ export function applyWriteTool(ctx: Context): void { const outcome = await ctx.fs.writeText(target, input.content, intent, exec.signal) // Record the observed version (a no-op when no policy plugin listens). ctx.emit('fs/observed', target, outcome.version, exec) - // Result-time contextual diff ONLY for an overwrite (a before-version + // Attach a contextual hunk as `meta` ONLY for an overwrite (a before-version // exists). A create has no "before" — `outcome.before` is null — so it - // carries no result diff, leaving just the call-time whole-file card. + // carries no `meta`; `presentResult` then renders a whole-file diff from the + // args, so the completed card is still a diff (never the result text). const diffs = outcome.before !== null ? computeHunkDiffs(input.filePath, outcome.before, outcome.after) : [] return { content: [{ type: 'text', text: formatWriteOutput(target.displayPath, outcome) }], diff --git a/packages/ui/acp/acp-feature-support.md b/packages/ui/acp/acp-feature-support.md index 6ef901f17b..4a051bf5aa 100644 --- a/packages/ui/acp/acp-feature-support.md +++ b/packages/ui/acp/acp-feature-support.md @@ -99,7 +99,7 @@ Tool-call presentation is **owned by each tool** (`presentCall` / `presentResult | `ToolCallKind` mapping | S | ✅ | ✅ | ✅ | `execute`/`read`/`edit`/`other` inferred from the tool; richer mapping possible. | | `ToolCallStatus` | S | ✅ | ✅ | ✅ | `in_progress` → `completed`/`failed`. | | `content` blocks | S | ✅ | ✅ | ✅ | Text content; the description renders above the card. | -| `diff` content | S | ✅ | ✅ | ✅ | The `write`/`edit` tools declare a `diff` render intent: `presentCall` → a call-time `{ card: 'diff' }` snippet, and `presentResult` → a result-time `{ card: 'diff' }` carrying the APPLIED hunk with surrounding context lines (one hunk per `replace_all` site), computed from the before/after file text and persisted on the `tool/result` event. The bridge emits `{ type: 'diff', path, oldText, newText }` content blocks; the result hunk supersedes the call snippet. | +| `diff` content | S | ✅ | ✅ | ✅ | The `write`/`edit` tools declare a `diff` render intent: `presentCall` → a call-time `{ card: 'diff' }` snippet, and `presentResult` → a result-time `{ card: 'diff' }`. For an edit or an overwrite it carries the applied hunk(s) with surrounding context (one per `replace_all` site), computed from the before/after text and persisted on the `tool/result` event as `meta`; for a create (no before-image) it is an args-derived whole-file diff. The bridge emits `{ type: 'diff', path, oldText, newText }` content blocks; a successful mutation ALWAYS returns the result diff (an ACP `tool_call_update.content` replaces the call's content, so the result diff — not the model-facing text — is what survives). | | `terminal` content | S | ✅ | ✅ | ✅ | Via the Zed `_meta` terminal convention (see below), not the spec `terminal/*` sub-protocol. | | `locations` (follow-along) | S | ✅ | ✅ | ✅ | The `read`/`write`/`edit` tools emit `{ path, line? }` file-location hints via `presentCall`. | | `rawInput` | S | ✅ | ⚠️ | ✅ | Parsed tool args surfaced as `rawInput`. | From 86457689fc7a91d04881f47126b808a857d263e0 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 21:30:11 +0800 Subject: [PATCH 27/32] docs(acp): note the whole-file-diff create case in the presentResult list The acp README's presentResult card list still described the `diff` result as always "the APPLIED hunks computed from before/after". Qualify it like the other surfaces: typically the applied hunks, or a whole-file diff for a create, and a successful mutation always returns it so the result text can't clobber the diff. --- packages/ui/acp/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/packages/ui/acp/README.md b/packages/ui/acp/README.md index d929fa5ddb..242577bfb8 100644 --- a/packages/ui/acp/README.md +++ b/packages/ui/acp/README.md @@ -48,7 +48,7 @@ How a tool call renders in the editor is owned by the TOOL, not the bridge — t - `{ card: 'terminal', title, description?, cwd? }` — a shell command → a terminal card (see Terminal card). - `{ card: 'diff', title, diffs, locations? }` — a file create/modify → an inline diff card; `diffs` is `FileDiff[]` (`{ path, oldText, newText }`, `oldText: null` ⇒ new file). The bridge emits each diff as an ACP `{ type: 'diff', path, oldText, newText }` `tool_call.content` block, which Zed renders as an inline diff / new-file preview. -`presentResult` returns a `ToolResultView`, one of three cards: `{ card: 'generic', title?, content? }` (an optional replacement `title` and reformatted `content`), `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit — see Terminal card), or `{ card: 'diff', title?, diffs }` (a completed file mutation → the APPLIED hunks with context lines computed from the before/after content, which supersede the call-time snippet). The bridge looks the definition up by name in `ctx.tools` and `switch (view.card)`es to build the ACP `tool_call`/`tool_call_update` wire shape per card; a tool that declares neither gets a generic fallback (title = tool name, raw parsed args as `rawInput`, kind inferred from the name). For example `dsh-tool-bash` returns a `terminal` card for a foreground `bash` (title = the exact `command` "ls -la src", `description` = the model description); the `dsh-tool-fs` `write`/`edit` tools return a `diff` call card and a `diff` result card, and `read` returns a `generic` card (`kind: 'read'`, the read window in its title — `Read foo.txt (5 - 8)` — and a `locations` entry for the file). For a file card the bridge **relativizes the title** against the session cwd (mirroring `claude-agent-acp`'s `toDisplayPath` — `Read src/foo.ts`, not the absolute path) while keeping `locations[]`/`diffs[].path` **raw** so the editor opens the real path. +`presentResult` returns a `ToolResultView`, one of three cards: `{ card: 'generic', title?, content? }` (an optional replacement `title` and reformatted `content`), `{ card: 'terminal', title?, output?, exitCode?, signal? }` (the captured run output + exit — see Terminal card), or `{ card: 'diff', title?, diffs }` (a completed file mutation → typically the applied hunks with context lines computed from the before/after content, or a whole-file diff for a create; a successful mutation ALWAYS returns this so the model-facing result text can't clobber the diff — an ACP `tool_call_update.content` replaces the call's content). The bridge looks the definition up by name in `ctx.tools` and `switch (view.card)`es to build the ACP `tool_call`/`tool_call_update` wire shape per card; a tool that declares neither gets a generic fallback (title = tool name, raw parsed args as `rawInput`, kind inferred from the name). For example `dsh-tool-bash` returns a `terminal` card for a foreground `bash` (title = the exact `command` "ls -la src", `description` = the model description); the `dsh-tool-fs` `write`/`edit` tools return a `diff` call card and a `diff` result card, and `read` returns a `generic` card (`kind: 'read'`, the read window in its title — `Read foo.txt (5 - 8)` — and a `locations` entry for the file). For a file card the bridge **relativizes the title** against the session cwd (mirroring `claude-agent-acp`'s `toDisplayPath` — `Read src/foo.ts`, not the absolute path) while keeping `locations[]`/`diffs[].path` **raw** so the editor opens the real path. The `tool/result` session event does not carry the tool name or args — so to call a tool's `presentResult` the bridge keeps a small per-session map from `callId` to the in-flight call's `(name, args)`, populated on `tool/call` and removed as each result is presented (it holds only currently-in-flight calls, never finished ones). This is bridge-local state — NOT a change to the event schema or a core service. The map lives on the `SessionRecord`, so two concurrent sessions never cross their in-flight tool state; a `session/load` replay uses a throwaway presenter that pairs each `tool/call` with its `tool/result` as the log replays in order, so replayed tool cards render identically to live ones. From d753660d66b0032a1c795b7b414d54b68e3927c9 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 21:38:42 +0800 Subject: [PATCH 28/32] docs(fs-local): a null before-image still renders a whole-file diff card MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The writeText comment still said a null `before` (a create or an undiffable binary file) means "a consumer renders no result-time diff, only the call-time whole-file card." That is stale since write's presentResult renders a whole-file diff for a null before-image. Correct it: a null `before` gives no contextual-hunk basis, so the consumer falls back to a whole-file diff — the tool still renders a result diff card, not the raw result text. --- packages/fs/fs-local/src/index.ts | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/packages/fs/fs-local/src/index.ts b/packages/fs/fs-local/src/index.ts index 30c65058c9..8ce96fe49d 100644 --- a/packages/fs/fs-local/src/index.ts +++ b/packages/fs/fs-local/src/index.ts @@ -148,8 +148,9 @@ export class LocalFileSystem extends FileSystem { // Capture the prior text (the before/after diff basis) BEFORE the write. // `null` for a create (no existing file) OR an existing-but-undiffable - // file (binary/invalid-UTF-8) — a consumer renders no result-time diff for - // either, only the call-time whole-file card. + // file (binary/invalid-UTF-8) — a null `before` gives no contextual-hunk + // basis, so a consumer falls back to a whole-file diff (the tool still + // renders a result-time diff card, not the raw result text). const before = existing ? await readTextForDiff(target.targetKey, signal) : null await writeFileAtomic(target.targetKey, content, existing?.mode, signal, this.internals) const after = await probe(target.targetKey) From e07886599c948c375eedb2edeb8b61983582fb2a Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 21:50:52 +0800 Subject: [PATCH 29/32] docs: finish the whole-file-diff sweep across comments and RFCs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Codex's stale-prose pass found seven more spots still describing the result diff as ALWAYS an applied contextual hunk, or a create/binary overwrite as rendering "only the call-time card": the DiffCallView JSDoc and the acp bridge diff-arm comment, the FsWriteOutcome.before and readTextForDiff JSDoc, and three RFC lines. All now say: the result diff is the applied change — a contextual hunk when there is a before-image, else a whole-file diff (create / undiffable binary) — and a successful mutation always returns the result diff so the model-facing text can't clobber it. Regenerate the cordis catalog (source line shift). --- docs/cordis-catalog/events-and-services.md | 2 +- .../2026-07-02-result-time-applied-hunk-diffs.md | 4 ++-- .../2026-07-02-tool-render-intent-union.md | 2 +- packages/core/tools/src/index.ts | 5 +++-- packages/fs/fs-local/src/fsio.ts | 5 +++-- packages/fs/fs/src/types.ts | 6 ++++-- packages/ui/acp/src/index.ts | 10 ++++++---- 7 files changed, 20 insertions(+), 14 deletions(-) diff --git a/docs/cordis-catalog/events-and-services.md b/docs/cordis-catalog/events-and-services.md index 5553592ba0..f4e30fe651 100644 --- a/docs/cordis-catalog/events-and-services.md +++ b/docs/cordis-catalog/events-and-services.md @@ -547,7 +547,7 @@ async execute(exec: ToolExecution): Promise Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md) -Source: [`packages/core/tools/src/index.ts:365`](../../packages/core/tools/src/index.ts) +Source: [`packages/core/tools/src/index.ts:366`](../../packages/core/tools/src/index.ts) ## Inherited tier (cordis core + loader/hmr/timer) diff --git a/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md index caa10f0de3..8a4c49ff2c 100644 --- a/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md +++ b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md @@ -35,7 +35,7 @@ Per the [capability-seam split](2026-06-13-capability-seams.md), the storage bac ### 3. The bridge renders a `diff` result card -`ToolResultView` gains a `DiffResultView { card:'diff'; title?; diffs: FileDiff[] }`; the bridge's result-side `switch (view.card)` gets a `diff` arm emitting the `{type:'diff'}` `ToolCallContent` blocks (mirroring the call-side arm). An ACP `tool_call_update.content` REPLACES the call's content in an editor, so the result-time contextual hunk **supersedes** the call-time snippet — the two-update sequence (call snippet, then result hunk) matches `claude-agent-acp` exactly. +`ToolResultView` gains a `DiffResultView { card:'diff'; title?; diffs: FileDiff[] }`; the bridge's result-side `switch (view.card)` gets a `diff` arm emitting the `{type:'diff'}` `ToolCallContent` blocks (mirroring the call-side arm). An ACP `tool_call_update.content` REPLACES the call's content in an editor, so the result diff **supersedes** the call-time snippet (and keeps the model-facing result text from clobbering it) — the two-update sequence (call snippet, then result diff) matches `claude-agent-acp` exactly. ### The diff algorithm — a third-party runtime dependency over vendoring @@ -44,7 +44,7 @@ Computing hunks-with-context is a solved problem with sharp edge cases (grouping ## Non-goals - **Live incremental diff streaming.** The hunk is computed once, after the mutation completes; there is no per-keystroke diff. -- **Diffing a binary/non-UTF-8 overwrite.** `before` is `null` for such a file (it has no text diff basis); the write still succeeds and renders the call-time card only. +- **Diffing a binary/non-UTF-8 overwrite.** `before` is `null` for such a file (it has no text diff basis); the write still succeeds and the result renders a whole-file diff (`oldText: null`) rather than a contextual hunk. - **Rename/move diffs.** Only content diffs of a single resolved path. ## Related diff --git a/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md b/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md index 66bea7a820..d574f50bba 100644 --- a/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md +++ b/docs/rfc/implemented/architecture/2026-07-02-tool-render-intent-union.md @@ -65,6 +65,6 @@ interface TerminalResultView { card: 'terminal'; title?: string; output?: string ## Related - Supersedes the deferral in [Collapse tool-owned UI presentation](../../rejected/simplification/2026-06-20-generic-tool-rendering.md) (rejected — "wait for two real tools and two real consumers, then a tagged render-intent union"). That bar is now met; this is that union. -- Extended by [Result-time applied-hunk diffs](2026-07-02-result-time-applied-hunk-diffs.md), which adds a persisted `meta` channel so write/edit emit a result-time contextual-hunk `DiffResultView` (context lines + one hunk per `replace_all` site) on top of this union's call-time diff card. +- Extended by [Result-time applied-hunk diffs](2026-07-02-result-time-applied-hunk-diffs.md), which adds a persisted `meta` channel so write/edit emit a result-time `DiffResultView` — the applied change (a contextual hunk with context lines / one per `replace_all` site, or a whole-file diff for a create) — on top of this union's call-time diff card. - Folds `ToolTerminal` into the `terminal` views described by [ACP terminal and tool-call rendering](../feature/2026-06-18-acp-terminal-and-tool-rendering.md) (the `_meta` terminal-card convention and capability gate are unchanged; only the harness-side presentation type changes). - The ACP SDK's `Diff` / `ToolCallContent` types back the new `diff` card. diff --git a/packages/core/tools/src/index.ts b/packages/core/tools/src/index.ts index 43cd860734..76f67291ed 100644 --- a/packages/core/tools/src/index.ts +++ b/packages/core/tools/src/index.ts @@ -159,8 +159,9 @@ export interface TerminalCallView { * A call that creates or modifies files, rendered as an inline diff card by a * capable UI. Set by a tool whose call writes/edits a file (e.g. `write`, * `edit`). The diffs are derived from the call ARGUMENTS (a create's `oldText` is - * `null`); the result-time applied-hunk diff (with context) is a separate - * {@link DiffResultView} the tool emits after `execute`. + * `null`); the tool emits a separate {@link DiffResultView} after `execute` — the + * applied change (an edit/overwrite hunk with context, or a whole-file diff for a + * create). */ export interface DiffCallView { card: 'diff' diff --git a/packages/fs/fs-local/src/fsio.ts b/packages/fs/fs-local/src/fsio.ts index e2aead2bfc..ae4830336b 100644 --- a/packages/fs/fs-local/src/fsio.ts +++ b/packages/fs/fs-local/src/fsio.ts @@ -386,8 +386,9 @@ export async function readForEdit( * Best-effort read of a file's current text for a before/after diff basis, used * by an overwrite. Returns the LF-normalized decoded content, or `null` when the * file is binary or not valid UTF-8 — a write must succeed regardless of the - * prior bytes, so an undiffable prior file simply yields no contextual diff - * (the caller treats `null` the same as an absent file: call-time card only). + * prior bytes, so an undiffable prior file simply yields no contextual-hunk basis + * (the caller treats `null` the same as an absent file: the result renders a + * whole-file diff rather than an applied hunk). */ export async function readTextForDiff(absolutePath: string, signal?: AbortSignal): Promise { const buffer = await readFileAbortable(absolutePath, 'read', signal) diff --git a/packages/fs/fs/src/types.ts b/packages/fs/fs/src/types.ts index 1b768724cf..424d581771 100644 --- a/packages/fs/fs/src/types.ts +++ b/packages/fs/fs/src/types.ts @@ -103,8 +103,10 @@ export interface FsWriteOutcome { version: FsVersion /** * The file's content BEFORE the write, or `null` when the file did not exist - * (a create). LF-normalized storage text (the diff basis), never a diff — a - * consumer computes the result-time contextual diff from `before`/`after`. + * (a create) or was undiffable (binary/non-UTF-8). LF-normalized storage text + * (the diff basis), never a diff — a consumer computes the result-time + * contextual diff from `before`/`after` when `before` is present, else falls + * back to a whole-file diff. */ before: string | null /** The file's content AFTER the write, LF-normalized to share `before`'s diff basis. */ diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index cfa133ae8f..1c1f0f770a 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -1170,10 +1170,12 @@ function toolResultUpdate(callId: CallId, view: ToolResultView, isError: boolean ...view.title !== undefined ? { title: view.title } : {}, } case 'diff': { - // A result-time applied-hunk diff: emit one `{ type: 'diff' }` content block - // per hunk (mirroring the call-side diff arm). `tool_call_update.content` - // REPLACES the call's content in an editor, so these hunks supersede the - // call-time whole-file snippet the pending card installed. + // A result-time diff: emit one `{ type: 'diff' }` content block per entry + // (an applied hunk for an edit/overwrite, or a whole-file diff for a + // create), mirroring the call-side diff arm. `tool_call_update.content` + // REPLACES the call's content in an editor, so this result diff supersedes + // the diff the pending card installed (and keeps the model-facing result + // text from clobbering it). const content: AcpToolCallContent[] = view.diffs.map(d => ({ type: 'diff', path: d.path, oldText: d.oldText, newText: d.newText })) return { sessionUpdate: 'tool_call_update', From e09852f5a6d1db64bf40125d245365f61e569598 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 22:01:54 +0800 Subject: [PATCH 30/32] docs: correct three more result-diff comments to the whole-file case MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Three comments still implied the result diff is always an applied hunk or that write returns undefined on no-hunk: the toolResultUpdate JSDoc (a diff result "emits the applied-hunk blocks, which replace the call-time snippet"), the empty-diffs test comment ("an empty write returns undefined" — write now falls back to a whole-file diff), and diffsFromMeta's JSDoc ("a bad meta yields no diff card" — only true for edit; write falls back to a whole-file diff). Each now states the write whole-file fallback. Regenerate the catalog. --- packages/fs/tool-fs/src/diff.ts | 3 ++- packages/ui/acp/src/index.ts | 7 ++++--- packages/ui/acp/tests/stream-update.spec.ts | 7 ++++--- 3 files changed, 10 insertions(+), 7 deletions(-) diff --git a/packages/fs/tool-fs/src/diff.ts b/packages/fs/tool-fs/src/diff.ts index 273fe0b033..64f3c5c686 100644 --- a/packages/fs/tool-fs/src/diff.ts +++ b/packages/fs/tool-fs/src/diff.ts @@ -81,7 +81,8 @@ function isFileDiff(value: unknown): value is FileDiff { * hunks, or `undefined` when it is absent/malformed. `presentResult` runs on * arbitrary logged `meta` (possibly from an older shape or a hand-edited log), so * it validates defensively rather than trusting the payload — a bad `meta` yields - * no diff card (the generic result rendering) instead of a thrown presenter. + * `undefined`, and the caller decides the fallback (edit → the generic result + * rendering; write → an args-derived whole-file diff), never a thrown presenter. */ export function diffsFromMeta(meta: unknown): FileDiff[] | undefined { if (typeof meta !== 'object' || meta === null || Array.isArray(meta)) return undefined diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index 1c1f0f770a..ab784d2efd 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -1126,9 +1126,10 @@ function terminalExitMeta(callId: string, view: TerminalResultView): TerminalExi * (the terminal card consumes them and `content` is OMITTED — a * `tool_call_update.content` REPLACES the call's content collection in Zed, so * re-sending would clobber the terminal block the call installed) and otherwise - * derives the fenced ```console fallback from `output`. A `diff` result emits the - * applied-hunk `{ type: 'diff' }` content blocks, which replace the call-time - * whole-file snippet in the editor. + * derives the fenced ```console fallback from `output`. A `diff` result emits its + * `{ type: 'diff' }` content blocks (an applied hunk, or a whole-file diff for a + * create), which replace the diff the call installed — so the model-facing result + * text can never clobber it. */ function toolResultUpdate(callId: CallId, view: ToolResultView, isError: boolean, terminal: TerminalRendering): ToolCallSessionUpdate { const status = isError ? 'failed' as const : 'completed' as const diff --git a/packages/ui/acp/tests/stream-update.spec.ts b/packages/ui/acp/tests/stream-update.spec.ts index 0a9974e049..67cd95ccdd 100644 --- a/packages/ui/acp/tests/stream-update.spec.ts +++ b/packages/ui/acp/tests/stream-update.spec.ts @@ -677,9 +677,10 @@ describe('result-time diff card (REAL fs edit tool → tool_call_update diff blo it('a diff result with an EMPTY diffs array and no title omits both keys (nothing to send)', () => { // A synthetic tool whose presentResult yields a `diff` card with no hunks and - // no title — the shipping fs tools never emit this (edit always has a hunk; an - // empty write returns undefined), so a stand-in is the only way to exercise - // the empty-content AND absent-title branches of the result-side diff arm. + // no title — the shipping fs tools never emit this (edit always has a hunk; + // write always falls back to a whole-file diff), so a stand-in is the only way + // to exercise the empty-content AND absent-title branches of the result-side + // diff arm. const emptyDiffTool: ToolDefinition = { name: 'writer', description: 'writes a file', From 8ca82d03ab3edf72096ce8aa8f7316cd2e1dcb6f Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 22:52:18 +0800 Subject: [PATCH 31/32] refactor(tool-web): port web tools to the render-intent union master's web_search/web_fetch tools were authored against the old ToolCallPresentation bag; the render-intent union replaces it with a card-tagged discriminated union. Both are simple generic cards, so they declare card:'generic' explicitly. --- packages/web/tool-web/src/fetch.ts | 6 +++--- packages/web/tool-web/src/search.ts | 6 +++--- packages/web/tool-web/tests/tool-web.spec.ts | 4 ++-- 3 files changed, 8 insertions(+), 8 deletions(-) diff --git a/packages/web/tool-web/src/fetch.ts b/packages/web/tool-web/src/fetch.ts index 85977fbea4..5f7334d952 100644 --- a/packages/web/tool-web/src/fetch.ts +++ b/packages/web/tool-web/src/fetch.ts @@ -7,7 +7,7 @@ import type { Context } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' -import type { ToolCallPresentation } from '@deepseek-ai/dsh-tools' +import type { GenericCallView } from '@deepseek-ai/dsh-tools' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { WebFetchBody, WebFetchResult } from '@deepseek-ai/dsh-web' import { assertNever } from '@deepseek-ai/dsh-llm' @@ -44,8 +44,8 @@ export function formatFetchOutput(result: WebFetchResult): string { } /** Pending-call presentation: a fetch card titled by the URL. */ -export function presentFetchCall(args: { url: string; timeout_ms?: number }): ToolCallPresentation { - return { title: args.url, kind: 'fetch', rawInput: args.url } +export function presentFetchCall(args: { url: string; timeout_ms?: number }): GenericCallView { + return { card: 'generic', title: args.url, kind: 'fetch', rawInput: args.url } } /** Register the `web_fetch` tool and its system-prompt guidance. */ diff --git a/packages/web/tool-web/src/search.ts b/packages/web/tool-web/src/search.ts index 2aa93ef10e..6394d3f7e0 100644 --- a/packages/web/tool-web/src/search.ts +++ b/packages/web/tool-web/src/search.ts @@ -7,7 +7,7 @@ import type { Context } from 'cordis' import { defineTool } from '@deepseek-ai/dsh-tools' -import type { ToolCallPresentation } from '@deepseek-ai/dsh-tools' +import type { GenericCallView } from '@deepseek-ai/dsh-tools' import type { ContentBlock } from '@deepseek-ai/dsh-llm' import type { WebSearchResult } from '@deepseek-ai/dsh-web' import type {} from '@deepseek-ai/dsh-system-prompt' @@ -63,8 +63,8 @@ export function formatSearchOutput(result: WebSearchResult): string { } /** Pending-call presentation: a search card titled by the query. */ -export function presentSearchCall(args: { query: string }): ToolCallPresentation { - return { title: args.query, kind: 'search', rawInput: args.query } +export function presentSearchCall(args: { query: string }): GenericCallView { + return { card: 'generic', title: args.query, kind: 'search', rawInput: args.query } } /** Register the `web_search` tool and its system-prompt guidance. */ diff --git a/packages/web/tool-web/tests/tool-web.spec.ts b/packages/web/tool-web/tests/tool-web.spec.ts index 2422c32ce3..7af1ce7c36 100644 --- a/packages/web/tool-web/tests/tool-web.spec.ts +++ b/packages/web/tool-web/tests/tool-web.spec.ts @@ -80,7 +80,7 @@ describe('search formatting', () => { }) it('presents a search call as a search-kind card titled by the query', () => { - expect(presentSearchCall({ query: 'find me' })).toEqual({ title: 'find me', kind: 'search', rawInput: 'find me' }) + expect(presentSearchCall({ query: 'find me' })).toEqual({ card: 'generic', title: 'find me', kind: 'search', rawInput: 'find me' }) }) }) @@ -116,7 +116,7 @@ describe('fetch formatting', () => { }) it('presents a fetch call as a fetch-kind card titled by the url', () => { - expect(presentFetchCall({ url: 'https://a.test' })).toEqual({ title: 'https://a.test', kind: 'fetch', rawInput: 'https://a.test' }) + expect(presentFetchCall({ url: 'https://a.test' })).toEqual({ card: 'generic', title: 'https://a.test', kind: 'fetch', rawInput: 'https://a.test' }) }) }) From 497ea15bdfa9b36f5364287a74cf1218aa3f1933 Mon Sep 17 00:00:00 2001 From: Tianyi Cui <53024+tianyicui@users.noreply.github.com> Date: Fri, 3 Jul 2026 23:14:22 +0800 Subject: [PATCH 32/32] fix(acp): relativize the completed diff card title MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The result-time diff card sent view.title raw, so a completed edit/write of an absolute in-workspace path flipped the card header back from the relativized `Edit src/b.ts` to the absolute path — the pending card relativizes, the result did not, and tool_call_update.title replaces the header. Apply displayTitle to the result diff arm using the diff path, mirroring the call-side card. Regression test proven red on the unfixed arm. Also record the overwrite diff-basis pre-read as a bounded follow-up (TODO(overwrite-diff-bound) + RFC non-goal): overwriting a large file reads the whole prior text into memory for a UI-only diff. --- ...26-07-02-result-time-applied-hunk-diffs.md | 1 + packages/fs/fs-local/src/index.ts | 3 +++ packages/ui/acp/src/index.ts | 7 ++++- packages/ui/acp/tests/stream-update.spec.ts | 26 +++++++++++++++++++ 4 files changed, 36 insertions(+), 1 deletion(-) diff --git a/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md index 8a4c49ff2c..9c95dff773 100644 --- a/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md +++ b/docs/rfc/implemented/architecture/2026-07-02-result-time-applied-hunk-diffs.md @@ -46,6 +46,7 @@ Computing hunks-with-context is a solved problem with sharp edge cases (grouping - **Live incremental diff streaming.** The hunk is computed once, after the mutation completes; there is no per-keystroke diff. - **Diffing a binary/non-UTF-8 overwrite.** `before` is `null` for such a file (it has no text diff basis); the write still succeeds and the result renders a whole-file diff (`oldText: null`) rather than a contextual hunk. - **Rename/move diffs.** Only content diffs of a single resolved path. +- **Bounding the overwrite diff basis.** An overwrite reads the whole prior file into memory to compute the contextual hunk (on top of the new content already held), so a very large text overwrite allocates both texts for a UI-only diff. A future refinement can bound the pre-read and fall back to a whole-file / no contextual diff above a size threshold; tracked as `TODO(overwrite-diff-bound)` at the read site. ## Related diff --git a/packages/fs/fs-local/src/index.ts b/packages/fs/fs-local/src/index.ts index 8ce96fe49d..567c6277c6 100644 --- a/packages/fs/fs-local/src/index.ts +++ b/packages/fs/fs-local/src/index.ts @@ -151,6 +151,9 @@ export class LocalFileSystem extends FileSystem { // file (binary/invalid-UTF-8) — a null `before` gives no contextual-hunk // basis, so a consumer falls back to a whole-file diff (the tool still // renders a result-time diff card, not the raw result text). + // TODO(overwrite-diff-bound): this reads the whole prior file into memory + // for a UI-only diff; bound the pre-read and fall back to no contextual + // basis above a size threshold (see the applied-hunk-diffs RFC non-goals). const before = existing ? await readTextForDiff(target.targetKey, signal) : null await writeFileAtomic(target.targetKey, content, existing?.mode, signal, this.internals) const after = await probe(target.targetKey) diff --git a/packages/ui/acp/src/index.ts b/packages/ui/acp/src/index.ts index ab784d2efd..bcfc0de6e4 100644 --- a/packages/ui/acp/src/index.ts +++ b/packages/ui/acp/src/index.ts @@ -1178,12 +1178,17 @@ function toolResultUpdate(callId: CallId, view: ToolResultView, isError: boolean // the diff the pending card installed (and keeps the model-facing result // text from clobbering it). const content: AcpToolCallContent[] = view.diffs.map(d => ({ type: 'diff', path: d.path, oldText: d.oldText, newText: d.newText })) + // Relativize the replacement title against the session cwd from the diff + // path, exactly as the call-side card does — `tool_call_update.title` + // replaces the card header, so a raw absolute path here would undo the + // pending card's relativized title. + const title = view.title !== undefined ? displayTitle(view.title, view.diffs[0]?.path, terminal.cwd) : undefined return { sessionUpdate: 'tool_call_update', toolCallId: callId, status, ...content.length > 0 ? { content } : {}, - ...view.title !== undefined ? { title: view.title } : {}, + ...title !== undefined ? { title } : {}, } } default: diff --git a/packages/ui/acp/tests/stream-update.spec.ts b/packages/ui/acp/tests/stream-update.spec.ts index 67cd95ccdd..b580a5fc3d 100644 --- a/packages/ui/acp/tests/stream-update.spec.ts +++ b/packages/ui/acp/tests/stream-update.spec.ts @@ -675,6 +675,32 @@ describe('result-time diff card (REAL fs edit tool → tool_call_update diff blo await ctx.fiber.dispose() }) + it('the completed diff TITLE relativizes against the session cwd (the result title replaces the card header)', async () => { + // A `tool_call_update.title` replaces the card header, so the result-side + // diff must relativize its title exactly as the pending card did — otherwise + // a completed absolute-path edit flips `Edit src/b.ts` back to the raw + // absolute path. The diff/location paths stay absolute (the editor opens the + // real path). Drive the REAL fs edit tool with an absolute in-workspace path. + const ctx = await fsCtx() + const presenter = new ToolPresenter(ctx.tools) + const args = JSON.stringify({ file_path: '/work/proj/src/b.ts', old_string: 'OLD', new_string: 'NEW' }) + const meta = { diffs: [{ path: '/work/proj/src/b.ts', oldText: 'a\nOLD\nb', newText: 'a\nNEW\nb' }] } + const out: SessionNotification['update'][] = [] + const rendering = { enabled: false, cwd: '/work/proj' } + for (const event of [ + evt('tool/call', { turn: 1, step: 1, callId: CallId('e1'), name: 'edit', arguments: args }), + evt('tool/result', { turn: 1, step: 1, callId: CallId('e1'), content: [{ type: 'text', text: 'ok' }], isError: false, meta }), + ]) streamSessionEventUpdate(SessionId('s1'), event, n => out.push(n.update), presenter, rendering) + expect(out[1]).toEqual({ + sessionUpdate: 'tool_call_update', + toolCallId: 'e1', + status: 'completed', + title: 'Edit src/b.ts', + content: [{ type: 'diff', path: '/work/proj/src/b.ts', oldText: 'a\nOLD\nb', newText: 'a\nNEW\nb' }], + }) + await ctx.fiber.dispose() + }) + it('a diff result with an EMPTY diffs array and no title omits both keys (nothing to send)', () => { // A synthetic tool whose presentResult yields a `diff` card with no hunks and // no title — the shipping fs tools never emit this (edit always has a hunk;