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https://github.com/deepseek-ai/deepseek-harness
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Merge compact-tool-pairing into token-meter-service
# Conflicts: # docs/event-producer-consumer.md
This commit is contained in:
Hypatia May
@@ -20,7 +20,6 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand;
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| [Unify the agent id and the session id](proposed/simplification/2026-06-20-unify-agent-and-session-id.md) | 2026-06-20 |
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| [Prune dead public and result surface](proposed/simplification/2026-07-04-prune-dead-core-spine-surface.md) | 2026-07-04 |
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| [Prune unused web seam fields](proposed/simplification/2026-07-12-prune-unused-web-seam-fields.md) | 2026-07-12 |
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| [Simplify session-log representation](proposed/simplification/2026-07-12-simplify-session-log-representation.md) | 2026-07-12 |
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### Architecture
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@@ -103,6 +102,7 @@ Generated by `pnpm run gen-rfc-index` from the RFC tree — never edit by hand;
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| [Tighten the hook-protocol contract — dialect, discarded fields, double defaults, and lib-owned `hook/result` semantics](implemented/simplification/2026-07-04-tighten-hook-protocol-contract.md) | 2026-07-04 |
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| [Trim unreachable ACP bridge surface — the branding knobs and the kind-sniffing fallback](implemented/simplification/2026-07-04-trim-acp-bridge-unreachable-surface.md) | 2026-07-04 |
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| [Drop unconsumed skill provider events](implemented/simplification/2026-07-12-drop-unconsumed-skill-provider-events.md) | 2026-07-12 |
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| [Prune unused web seam fields](implemented/simplification/2026-07-12-prune-unused-web-seam-fields.md) | 2026-07-12 |
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### Architecture
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@@ -64,7 +64,7 @@ flowchart LR
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toolWeb -->|ctx.tools.register| webFetch["tool: web_fetch"]
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```
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`@deepseek-ai/dsh-web` depends only on Cordis and low-level harness support. It declares `ctx.web`, provider interfaces, request/result types, the provider status type, and error codes. It does not import tool, agent, session, LLM, or provider packages.
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`@deepseek-ai/dsh-web` depends only on Cordis and low-level harness support. It declares `ctx.web`, provider interfaces, request/result types, the provider availability contract, and error codes. It does not import tool, agent, session, LLM, or provider packages.
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Provider packages depend only on `dsh-web` and Cordis. They own credentials, endpoints, wire mapping, parsing, and `WebError` translation, using platform `fetch`. Each provider injects the shared service and registers a backend; only `dsh-web` owns the `ctx.web` key. Provider-private protocol shapes do not create dependencies on `ctx.llm` or a Cordis HTTP service.
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@@ -77,52 +77,42 @@ Provider packages depend only on `dsh-web` and Cordis. They own credentials, end
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```ts
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interface WebSearchProvider {
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readonly id: string
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status(): WebProviderStatus
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search(request: WebSearchRequest, exec?: WebExecContext): Promise<WebSearchResult>
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available(): boolean
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search(request: WebSearchRequest, signal?: AbortSignal): Promise<WebSearchResult>
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}
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interface WebFetchProvider {
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readonly id: string
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status(): WebProviderStatus
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fetch(request: WebFetchRequest, exec?: WebExecContext): Promise<WebFetchResult>
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available(): boolean
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fetch(request: WebFetchRequest, signal?: AbortSignal): Promise<WebFetchResult>
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}
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interface WebService {
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registerSearchProvider(provider: WebSearchProvider): () => void
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registerFetchProvider(provider: WebFetchProvider): () => void
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search(request: WebSearchRequest, exec?: WebExecContext): Promise<WebSearchResult>
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fetch(request: WebFetchRequest, exec?: WebExecContext): Promise<WebFetchResult>
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}
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interface WebExecContext {
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readonly signal?: AbortSignal
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search(request: WebSearchRequest, signal?: AbortSignal): Promise<WebSearchResult>
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fetch(request: WebFetchRequest, signal?: AbortSignal): Promise<WebFetchResult>
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}
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```
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`WebExecContext` is execution control, not business input. It carries only `signal`, so `tool-web` propagates turn cancellation, tool timeout, and agent disposal into provider network requests, SSE readers, and expensive decoding. It does not pass `ToolExecution` through the seam — that would make `dsh-web` depend on `dsh-tools`.
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The optional signal is execution control, not business input: `tool-web` passes `exec.signal` directly so turn cancellation, tool timeout, and agent disposal reach provider network requests, stream readers, and expensive decoding. The seam does not pass `ToolExecution` through — that would make `dsh-web` depend on `dsh-tools`.
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Provider ids are stable strings and unique within their capability kind. Registering a duplicate search provider id or duplicate fetch provider id fails rather than silently replacing the old provider. Provider registration returns a disposer and follows the existing `ctx.tools.register()` / `ctx.systemPrompt.section()` pattern: the mutation is wrapped in `ctx.effect()` so the registration is torn down with the contributing fiber.
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## Provider status and selection
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## Provider availability and selection
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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.
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Provider availability 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 `available()` must not make network calls.
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`LlmService` has no status type at all: availability is expressed as registry membership plus a resolution-time throw. `ctx.web` follows the same discipline. The seam exposes no aggregated capability-status query — `search()` / `fetch()` derive the selection on each call from the configured provider id, the registered providers, and each provider's cheap local `status()`, and a selection failure is the structured `WebError` thrown at execution time, whose code answers "in which broad category does this capability fail" and whose message answers "exactly which provider/ids/reason." A caller that needs to know whether a capability can run executes and routes that error; nothing is stored as mutable service state.
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`LlmService` has no status type at all: availability is expressed as registry membership plus a resolution-time throw. `ctx.web` follows the same discipline. The seam exposes no aggregated capability-status query — `search()` / `fetch()` derive the selection on each call from the configured provider id, the registered providers, and each provider's cheap local `available()` boolean, and a selection failure is the structured `WebError` thrown at execution time. A caller that needs to know whether a capability can run executes and routes that error; nothing is stored as mutable service state.
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`WebProviderStatus` is an input to selection, not a health system. `tool-web` never calls a provider's `status()` directly — its only path into the seam is `search()` / `fetch()` — so selection policy has one owner.
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```ts
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type WebProviderStatus =
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| { readonly available: true }
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| { readonly available: false; readonly reason: 'missing-credential' | 'misconfigured' }
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```
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The boolean is an input to selection, not a health system. `tool-web` never calls a provider's `available()` directly — its only path into the seam is `search()` / `fetch()` — so selection policy has one owner.
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Selection must not depend on registration order. Cordis load order, config ordering, and HMR timing are not product semantics.
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| Situation | Execution behavior |
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|---|---|
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| A configured provider id is registered and `status().available === true` | runs that provider |
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| A configured provider id is registered and `available() === true` | runs that provider |
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| A configured provider id is not registered | fails with `WEB_PROVIDER_CONFIGURED_MISSING` |
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| A configured provider id is registered but unavailable | fails with `WEB_PROVIDER_CONFIGURED_UNAVAILABLE` |
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| No provider id is configured and exactly one provider for that kind is registered and available | runs that single provider |
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@@ -184,8 +174,6 @@ interface WebSearchRequest {
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}
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interface WebSearchResult {
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readonly providerId: string
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readonly query: string
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readonly content?: string
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readonly sources: readonly WebSearchSource[]
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readonly truncated: boolean
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@@ -212,20 +200,17 @@ The `web_fetch` implementation is an anonymous public HTTP(S) fetch provider, `l
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The seam request stays smaller than OpenCode's model-facing tool:
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- `url`: required HTTP(S) URL.
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- `timeoutMs`: optional positive number capped by the provider.
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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, that is a separate `web_extract` capability or a deliberate widening of this seam — extract semantics are never smuggled into `web_fetch` by making every HTTP field optional.
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The seam request deliberately does not include a per-call timeout, `format`, `prompt`, or provider-specific extraction controls. Cancellation is the direct optional execution signal, while the fetch provider owns one deployment-configured timeout backstop. `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, that is a separate `web_extract` capability or a deliberate widening of this seam — extract semantics are never smuggled into `web_fetch` by making every HTTP field optional.
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HTTP status is part of the fetched resource state, not automatically a tool failure. A successful network fetch of a `404` or `500` response returns `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.
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```ts
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interface WebFetchRequest {
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readonly url: string
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readonly timeoutMs?: number
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}
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interface WebFetchResult {
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readonly providerId: string
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readonly url: string
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readonly statusCode: number
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readonly body: WebFetchBody
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@@ -257,11 +242,11 @@ SSRF / private-network protection (blocking private, loopback, link-local, multi
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`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`.
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`dsh-tool-web` must not enumerate providers or call provider `status()` directly. Its only path into the seam is `ctx.web.search()` / `ctx.web.fetch()`. That keeps provider selection in one layer; otherwise the tool package could decide one provider is usable while execution resolves a different state.
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`dsh-tool-web` must not enumerate providers or call provider `available()` directly. Its only path into the seam is `ctx.web.search()` / `ctx.web.fetch()`. That keeps provider selection in one layer; otherwise the tool package could decide one provider is usable while execution resolves a different state.
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Tool registration is a minimal stable sync: on plugin startup the `dsh-tool-web` `Config` (`search?: boolean`, `fetch?: boolean`, both default `true`) enables or disables each web tool; an enabled tool is registered with a fiber-scoped disposer via the effect-based registry; neither tool is disposed merely because its selected provider is missing, unusable, or ambiguous; disposing the `tool-web` fiber tears down its registrations automatically.
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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.
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Provider availability 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.
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The prompt guidance explains the semantic split — `web_search` for discovery and current information, `web_fetch` when the model needs the content of a specific URL — and the prompt and tool result tell the model to cite relevant URLs with markdown links.
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@@ -57,9 +57,8 @@ Signal replacement is by **in-place mutation of `exec.signal`**, not by passing
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`timeout-policy` owns both uses of the `TOOL_TIMEOUT` code: the internal deadline code passed to `deadline()`/`timeoutOf()` (scoped so a nested outer deadline reads as an ordinary cancel) and the structured tool-result error code. Its replacement result is:
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```ts ignore-check
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function toolTimeoutResult(callId: CallId, timeoutMs: number): ToolExecutionResult {
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function toolTimeoutResult(timeoutMs: number): ToolExecutionResult {
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return {
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callId,
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content: [{ type: 'text', text: `Error: tool call timed out after ${timeoutMs}ms` }],
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isError: true,
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error: { name: 'ToolTimeoutError', code: 'TOOL_TIMEOUT' },
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@@ -75,7 +74,7 @@ No new session event is needed for reconstructability: `TOOL_TIMEOUT` is the fin
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`web_fetch` and `web_search` are migrated. `dsh-tool-web` keeps ownership of their model-facing schemas, and those schemas expose no timeout knob: `web_fetch` dropped its `timeout_ms` parameter to match the reference-agent shape, and `web_search` stays query-only. The tool bodies do not import `@deepseek-ai/dsh-timeout`; they forward `exec.signal` to `ctx.web`.
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`dsh-web-fetch-local` keeps a provider-level timeout (`timeoutMs`/`maxTimeoutMs`) as a large resource backstop for direct `ctx.web.fetch()` callers and misconfigured deployments; it owns no model-facing timeout. When a `TOOL_TIMEOUT` signal reaches the fetch provider first, provider-scoped classification treats it as upstream `WEB_ABORTED`, and the outer `tools/execute` wrapper replaces the final tool result with `TOOL_TIMEOUT`. A shipped web-tool deployment configures the provider backstop above the `timeout-policy` budget so the tool-call policy normally wins for model calls.
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`dsh-web-fetch-local` keeps one configured provider-level `timeoutMs` as a large resource backstop for direct `ctx.web.fetch()` callers and misconfigured deployments; it owns no model-facing timeout. When a `TOOL_TIMEOUT` signal reaches the fetch provider first, provider-scoped classification treats it as upstream `WEB_ABORTED`, and the outer `tools/execute` wrapper replaces the final tool result with `TOOL_TIMEOUT`. A shipped web-tool deployment configures the provider backstop above the `timeout-policy` budget so the tool-call policy normally wins for model calls.
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`bash` stays on the current backend timeout path. `dsh-tool-bash` continues to expose `timeoutMs` and `run_in_background`; `dsh-bash-local` continues to use `@deepseek-ai/dsh-timeout` for `BASH_TIMEOUT`; hook bridges continue to call `runHook()` and pass `timeoutMs` through `ctx.bash`. This keeps foreground/background/hook behavior stable.
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@@ -10,7 +10,7 @@ The boundary bought package metadata, workspace and tsconfig references, module-
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## Decision
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The `stdio-chat` module now lives inside `dsh-stdio-agent` with its runtime seam. Per-file tests cover EOF, rendering, disposal, and piped-versus-TTY behavior without replacing process globals. It retains the named Cordis plugin export shape consumed by the app; an `unwrapExports` assertion and keyless Loader smokes guard both the package and composed entry paths.
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The helper lives in `@deepseek-ai/dsh-stdio` as the terminal-channel plugin (`packages/ui/stdio/src/index.ts`): `createStdioChat`, its `StdioRuntime` test seam, and its unit tests (`packages/ui/stdio/tests/stdio.spec.ts`, `readline.spec.ts`) moved with it, so EOF handling, rendering, disposal, and piped-vs-TTY behavior stay unit-covered under the per-file coverage gate without hijacking process globals. The module keeps the named `name`/`inject`/`Config`/`apply` export shape — the contract the app's `ctx.plugin(uiStdio, …)` mount consumes — and the keyless Loader-path smokes in `examples/echo-agent` and `examples/coding-agent` keep proving the composed tree boots through the real Loader (the stdio package's plugin-shape unit suite pins the explicit `unwrapExports` assertion, since a bundle without `inject` would boot past a stray default rather than crash).
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The `packages/support/ui-stdio` package is gone: manifest, tsconfig references, module-graph rows, and README rows deleted; the doc comments that named the package (the example e2e module docs, `packages/README.md`, the support and todo READMEs, [the ui group README](../../../../packages/ui/README.md)) describe the in-package module.
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@@ -1,6 +1,6 @@
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# RFC: Prune unused web seam fields
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Status: proposed
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Status: implemented
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## Problem
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@@ -8,23 +8,18 @@ The web capability carries request/result/status values that every shipped imple
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`WebFetchRequest.timeoutMs` is likewise never set by a production caller. `tool-web` supplies only the URL, uses the tool definition's timeout plus `exec.signal` for the caller deadline, and relies on the local provider's configured default as a backstop. The unused per-request override forces `web-fetch-local` to expose `maxTimeoutMs`, clamp two timeout sources, and document/test precedence no product path can select. `WebExecContext` is another one-field wrapper: every caller allocates `{ signal }` and every provider immediately unwraps `exec?.signal`; no second execution-control field exists.
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## Proposal
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## Decision
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Remove the search/fetch `providerId` result echoes and search `query` echo; callers already own the request and provider selection. Shrink provider status to availability alone, preferably a boolean-returning method if that produces the clearest seam. Remove per-request fetch timeout, `maxTimeoutMs`, and their clamp/validation branches while retaining the provider's configurable default timeout and tool-level deadline. Replace `WebExecContext` with a direct optional `AbortSignal` parameter.
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The web seam omits the search/fetch `providerId` result echoes and search `query` echo; callers already own the request and provider selection. Providers expose availability as a boolean-returning method. Fetch requests have no per-request timeout or `maxTimeoutMs` clamp; the local provider retains its configurable default timeout and the tool retains its own deadline. Provider methods receive a direct optional `AbortSignal` instead of a one-field `WebExecContext` wrapper.
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Update all web implementations, the model-facing tool, package READMEs/JSDoc, type-equivalence records, and tests. Keep the interface/implementation/consumer package split, provider selection, source citations, final-URL/status data, truncation reporting, and all safety limits.
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All web implementations and the model-facing tool use the smaller contract. The interface/implementation/consumer package split, provider selection, source citations, final-URL/status data, truncation reporting, and safety limits remain.
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## Alternatives considered
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**Keep self-describing results, per-request deadlines, and an extensible execution-context object.** Result echoes can help generic telemetry, a request timeout can help trusted programmatic callers, and the wrapper leaves room for future controls. No such consumer/second field exists; carrying duplicate identity, a second deadline policy, and wrap/unwrap plumbing through every provider makes the current contract harder to implement and explain. If telemetry or per-call budget control arrives, it should define which deadline wins, where provider identity is observed, and whether multiple controls justify a context object.
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## Acceptance criteria
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## Consequences
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- Every retained web request/result/status field has a production reader or is required to execute the provider request.
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- Tool-visible search/fetch output, provider fallback, abort behavior, configured timeout backstop, truncation, and citations remain covered.
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- No `maxTimeoutMs`, request-timeout precedence branch, or one-field execution-context wrapper remains.
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- Typecheck, coverage, snapshots, doc-sync, module-graph verification, build, and hygiene pass.
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## Risks
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Every retained web request/result field is consumed by production code or required to execute the provider request. Tool-visible search/fetch output, provider fallback, abort behavior, the configured timeout backstop, truncation, and citations remain covered without a request-timeout precedence branch or execution-context wrapper.
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Pre-release programmatic callers lose result provenance echoes and per-request fetch deadlines. The provider still has a deployment-configurable timeout and respects cancellation, so the simplification removes configurability rather than a safety bound.
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@@ -26,7 +26,7 @@ Amend the session-surface and reconstructable-request RFCs where they describe t
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## Acceptance criteria
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- `SurfaceManager.nodes` is one ordered seq array with no `SurfaceNode`, link fields, or seq-to-node map; incremental append processing and the internal replace-generation signal remain, while the separate public `invalidate()` deletion stays owned by the dead-surface RFC.
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- `SurfaceManager.nodes` is one ordered seq array with no `SurfaceNode`, link fields, or seq-to-node map; incremental append processing and the internal replace-generation signal remain.
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- Replaying full changed-header snapshots reconstructs exactly the same requests; no header-delta event/type/codec remains.
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- A v0 seed or persisted log containing legacy `request/header-delta` is rejected before replay, with coverage for JSONL and SQLite load paths.
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- New-shape v0 JSONL/SQLite replay, provenance, crash repair, compaction, snapshots, invariants, typecheck, coverage, doc-sync, build, and hygiene pass.
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