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Sweep 31 Oct 2026 · 01:10Z Build v2.1.316 534 read Stable v2.1.309 Latest v2.1.316 Next v2.1.316 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 31 Oct 2026
One change · api

tool-search-tool changedagents-and-tools/tool-use/tool-search-tool

Nearest release: v2.1.316, published under an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

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First seen 14 Aug 2026 this site's first read of the page
Recorded edits21to this page, all time

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33url: https://platform.claude.com/docs/en/agents-and-tools/tool-use/tool-search-tool
44description: Scale to hundreds or thousands of tools by letting Claude search your tool catalog and load only the tools it needs.
55featureMetadata:
6 status: ga
6 status: stable
77 zdr:
88 eligibility: eligible
99 note: Excludes [Covered Models](https://platform.claude.com/docs/en/manage-claude/api-and-data-retention#model-specific-data-retention-requirements). Server-side tool run by Anthropic; the tool definitions in the request are searched in memory per call and nothing is stored after the response.
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2626 - claude-opus-4-5-20251101
2727 - claude-sonnet-4-5-20250929
2828 supportedPlatforms:
29 Claude API: ga
30 Claude Platform on AWS: ga
31 Amazon Bedrock: ga
29 Claude API: stable
30 Claude Platform on AWS: stable
31 Amazon Bedrock: stable
3232 Amazon Bedrock (InvokeModel):
33 availability: ga
33 availability: stable
3434 note: On Amazon Bedrock it is not available through the Converse API.
35 Claude Models on Google Cloud (Google managed): ga
36 Microsoft Foundry: ga
35 Claude Models on Google Cloud (Google managed): stable
36 Microsoft Foundry: stable
3737---
3838 
3939The tool search tool lets Claude work with hundreds or thousands of tools by discovering and loading them on demand. Instead of loading all tool definitions into the context window up front, Claude searches your tool catalog (including tool names, descriptions, argument names, and argument descriptions) and loads only the tools it needs.
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