Set up Claude Code in a monorepo or large codebase changedlarge-codebases
Nearest release: v2.1.287, published 11 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 2 Oct 2026 04:12 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 2 Oct 2026 04:37 UTC.
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181181In a large codebase, finding where a symbol is defined or used can cost many file reads and grep calls. [Code intelligence plugins](/docs/en/plugins/code-intelligence) connect Claude to a language server so it can jump to definitions, find references, and surface type errors directly instead of scanning the tree.
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183The official marketplace has plugins for TypeScript, Python, Go, Rust, and other common languages. Run the command below inside a Claude Code session to install the TypeScript plugin:
183The official marketplace has plugins for TypeScript, Python, Go, Rust, and other common languages. In the VS Code extension or the desktop app, install one by following [Install a plugin](/docs/en/plugins/install#install-a-plugin). In a terminal, start Claude Code by running `claude`, then enter this at its prompt to install the TypeScript plugin:
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185185```shell theme={null}
186186/plugin install typescript-lsp@claude-plugins-official
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