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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Tools reference changedtools-reference

Nearest release: v2.1.282, published 7 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 24 Sep 2026 23:46 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 25 Sep 2026 00:07 UTC.

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197197* `mcp`: local [MCP servers](/docs/en/mcp)
198198* `lsp`: [language servers](#lsp-tool-behavior)
199199* `hooks`: [hook](/docs/en/hooks) commands
200* `plugin`: commands that [plugins](/docs/en/plugins) run
200* `plugin`: commands that [plugins](/docs/en/plugins/overview) run
201201* `helper`: Claude Code's own helper commands, such as `git`
202202* `agent`: child Claude Code processes, such as [agent teammates](/docs/en/agent-teams)
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310310* Find implementations of an interface
311311* Trace call hierarchies
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313Claude Code keeps the tool inactive until you install a [code intelligence plugin](/docs/en/discover-plugins#code-intelligence) for your language. In [cloud sessions](/docs/en/claude-code-on-the-web), Claude Code doesn't start plugin language servers, so the LSP tool stays inactive there. Claude Code takes the language server's configuration from the plugin, and you install the server binary yourself.
313Claude Code keeps the tool inactive until you install a [code intelligence plugin](/docs/en/plugins/code-intelligence) for your language. In [cloud sessions](/docs/en/claude-code-on-the-web), Claude Code doesn't start plugin language servers, so the LSP tool stays inactive there. Claude Code takes the language server's configuration from the plugin, and you install the server binary yourself.
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315315Claude Code returns an error result for each LSP call on a file whose language server it can't start.
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341341The tool is not available on Amazon Bedrock, Google Cloud's Agent Platform, or Microsoft Foundry. It is also not available when `DISABLE_TELEMETRY` or `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC` is set.
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343Plugins can declare monitors that start automatically when the plugin is active, instead of asking Claude to start them. See [plugin monitors](/docs/en/plugins-reference#monitors).
343Plugins can declare monitors that start automatically when the plugin is active, instead of asking Claude to start them. See [plugin monitors](/docs/en/plugins/components#monitors).
344344 
345345### WebSocket source
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