Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
One change · claude-code

Give Claude custom tools changed

agent-sdk/custom-tools

Nearest release: v2.1.273, published 3 hours 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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From line 126 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
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127127Pass the MCP server you created to `query` via the `mcpServers` option. The key in `mcpServers` becomes the `{server_name}` segment in each tool's fully qualified name: `mcp__{server_name}__{tool_name}`. List that name in `allowedTools` so the tool runs without a permission prompt.
128128 
129These snippets reuse the `weatherServer` from the [example above](#weather-tool-example) to ask Claude what the weather is in a specific location.
129These snippets reuse the `weatherServer` from the [weather tool example](#weather-tool-example) to ask Claude what the weather is in a specific location.
130130 
131131<CodeGroup>
132132 ```python Python theme={null}