Files
deepseek-harness/packages/web/tool-web
Dudu-0223 a76285c4e6 Merge origin/master into timeout-design
Resolve conflicts from master's catalog/doc refactors landing alongside the
tool-call timeout work:
- knip.json: keep both new workspace entries (util/timeout + support/acp-snapshot).
- tool-web/src/fetch.ts: keep the timeout_ms removal, adopt master's richer
  JSDoc @param/@returns style on parseFetchArgs/presentFetchCall.
- tools/README.md: keep the tools/execute pipeline wording, adopt master's
  flattened docs/tool-catalog.md path.
- Regenerate every generated doc (cordis-catalog, tool-catalog, config-catalog,
  doc-graphs, module-graph) so they carry both master's changes and the
  tools/execute event + timeout-policy package.
- Add @param/@returns to toolTimeoutResult for master's new verify-export-jsdoc gate.
2026-07-08 11:18:27 +08:00
..

@deepseek-ai/dsh-tool-web

The model-facing web tool suite — web_search and web_fetch — over the web capability seam (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. Neither tool exposes a model-facing timeout — the tool-call budget is deployment policy owned by @deepseek-ai/dsh-timeout-policy (a tools/execute wrapper); each tool just forwards exec.signal to the seam.

Each tool is registered independently; a product that wants only one disables the other via config ({ search: false } / { fetch: false }).

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 (the searchMaxResults config, default 8) and passes it to the seam.
web_fetch url (string) 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. The tool-call timeout is deployment policy (dsh-timeout-policy), not a model argument.

Config

Key Default Meaning
search true Register web_search.
fetch true Register web_fetch.
searchMaxResults 8 Upper bound on sources returned by one web_search call (the seam truncates a longer provider list and flags it).
- 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 never calls a provider's status() and never enumerates providers — its only execution path is ctx.web.search() / ctx.web.fetch(), and provider unavailability reaches it as the structured WebError codes selection throws at execution time. Provider selection stays entirely inside the seam, with one owner.