deepseek-harness/packages/web

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 Agent Note for the design rationale, including why search and fetch are deliberately one seam and why web_fetch's SSRF protection is deferred.