SEP-1821: Add dynamic tool search support #1822
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Add the ClientCapabilities.dynamic field to indicate that the server supports dynamic tool filtering. Add query and metadata fields to ListToolsRequest.
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Simplify the usage of the query and remove any metadata from it, as it’s uncertain how the agent should fill this metadata. Only use the query field for simple queries that are agent-friendly. Closes modelcontextprotocol#1821
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localden
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@truehazker this SEP does not have an assigned sponsor. Are you looking to continue working on it and find sponsorship? |
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Hi, the search and filtering are still a big itch I'd say in the MCP. I continue exploring solutions, but the current approach has ambiguity in terms of the query parameter format and server-side search implementation. I'm still searching for something clear that can be actually used in a sort of deterministic way by the AI agents and LLMs. So yeah, sponsoring would help me at least to have a second point of view. |
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Add Tool Search Support to tools/list
Add
ServerCapabilities.tools.filteringflag andqueryparameter toListToolsRequestParamsto enable agent-friendly tool search.This implements the specification proposed in SEP-1821: Dynamic Tool Discovery.
Summary
ServerCapabilities.tools.filtering- indicates server supports tool searchquery(simple search string) ontools/listrequestsEnables agents to search for relevant tools instead of fetching complete catalogs, saving tokens and improving efficiency.
Key Features
tools.listChangedfor dynamic updatesTypes of changes
Checklist
AI Disclosure