Model-facing tool-call budgets were tangled into each capability's schema (bash timeoutMs, web_fetch timeout_ms) with no shared home. Add a tools/execute around-dispatch waterfall to dsh-tools whose base next() is the dispatch-with-normalization thunk, and a new @deepseek-ai/dsh-timeout-policy plugin (packages/timeout/) that arms a per-tool deadline on exec.signal and returns a structured TOOL_TIMEOUT when it wins. Migrate web_fetch (drop the model-facing timeout_ms) and web_search onto it; the fetch provider keeps its timeout only as a resource backstop for direct callers. bash and hook command execution keep BASH_TIMEOUT unchanged. Named the plugin timeout-policy (not the RFC's tool-timeout) so it does not trip the gen-tool-catalog packages/*/tool-* completeness guard, and replace exec.signal by in-place mutation before next() since cordis waterfall next() ignores passed arguments. RFC moved to implemented/ recording both deviations.
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-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) |
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 for the design rationale, including why search and fetch are deliberately one seam and why web_fetch's SSRF protection is deferred.