CodeRabbit

Install MCP Server

npm version npm license Node

MCP (Model Context Protocol) server that exposes CodeRabbit IDE extension review comments as tools and resources. Use it from Cursor or any MCP client to scan the latest batch, list unaddressed comments, read exported markdown by file/kind, and mark comments as addressed or wontfix.

The comments this server reads are written locally by the CodeRabbit IDE extension (VS Code / Cursor). Install that extension and run a CodeRabbit review in your workspace; this MCP server then discovers the latest batch from the extension’s storage and exposes it as tools and resources.

• Node: ≥20
• Transport: stdio (stdin/stdout for JSON-RPC; stderr for logs)

Installation

This server is stdio only (no remote URL). Use the local connection config for your client.

{
  "mcpServers": {
    "CodeRabbit MCP": {
      "command": "npx",
      "args": ["-y", "@deffz-finesse/coderabbit-mcp"]
    }
  }
}

claude mcp add CodeRabbit-MCP -- npx -y @deffz-finesse/coderabbit-mcp

{
  "mcpServers": {
    "CodeRabbit MCP": {
      "command": "npx",
      "args": ["-y", "@deffz-finesse/coderabbit-mcp"]
    }
  }
}

"mcp": {
  "servers": {
    "CodeRabbit MCP": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@deffz-finesse/coderabbit-mcp"]
    }
  }
}

{
  "mcpServers": {
    "CodeRabbit MCP": {
      "command": "npx",
      "args": ["-y", "@deffz-finesse/coderabbit-mcp"]
    }
  }
}

{
  "mcpServers": {
    "CodeRabbit MCP": {
      "command": "npx",
      "args": ["-y", "@deffz-finesse/coderabbit-mcp"]
    }
  }
}

Install (from source)

npm install -g @deffz-finesse/coderabbit-mcp

Or clone and build:

git clone <repo-url>
cd coderabbit-mcp
npm install
npm run build

Run (manual)

The server uses stdio (stdin/stdout). When not using the Installation snippets above: command = node (or npx), args = path to dist/index.js or ["-y", "@deffz-finesse/coderabbit-mcp"]. It does not listen on a port.

Environment

Data written by the server:

• DB: <RABBIT_OUTPUT_BASE>/rabbit-comment.db (or .coderabbit/rabbit-comment.db when using default).
• Exports: <RABBIT_OUTPUT_BASE>/exports/rabbit-<batchId>/ (markdown files per file/kind).

Available tools

All tools are under the rabbit namespace.

Resources

• rabbit-markdown: Exported markdown for a repository file and comment kind within a batch. URI form: rabbit://b/{batchId}/f/{filename}/{kind} (filename and kind are URL-encoded). List returns URIs for the latest batch; read returns the markdown content.

Prompts

• rabbit-triage: Runs a scan, lists unaddressed comments by file, and returns a triage summary with suggested next steps.

For detailed installation steps (Cursor, VS Code, Claude, etc.), architecture, configuration, and development, see the project docs.

Develop

npm install
npm run dev          # Run with tsx (stdio; connect an MCP client)
npm run build        # Compile TypeScript to dist/
npm run typecheck    # tsc --noEmit
npm run lint:check   # Biome check
npm run lint:fix     # Biome check --write
npm test             # Build + Node test runner

Security / Trust model

This server is local-only: it runs as a subprocess of your MCP client (e.g. Cursor) and does not open network ports or authenticate users. All data stays on your machine.

• No authentication: Anyone who can run the server can run all tools and read all resources. Use normal OS and editor access controls.
• Paths: Discovery root (RABBIT_DISCOVERY_ROOT) and output base (RABBIT_OUTPUT_BASE) are taken from the environment. The server reads from the discovery root and writes the DB and exports under the output base. Ensure these paths point at locations you trust.
• Inputs: Tool and resource inputs (e.g. comment_id, batchId) are used only as identifiers; path traversal is prevented when reading exported markdown. Tool arguments are validated with Zod; invalid args return a structured error (Invalid arguments with details) rather than being passed through.

License

MIT © Deffz Finesse. See LICENSE for the full text.