Code Review Graph

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Build a local Tree-sitter knowledge graph of your code so assistants read only the files a change affects.

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uvx code-review-graph serve

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mcp.tc/i/code-review-graph

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Code Review Graph parses a repository with Tree-sitter into a graph of functions, classes, imports, calls, inheritance and test coverage. It serves compact context over MCP, including blast-radius analysis of which callers, dependents and tests a change touches, so an assistant reads those files instead of scanning the whole project. It supports many languages and notebooks, and updates the graph incrementally through hooks or watch mode.

It runs locally over stdio with Python 3.10+, started with uvx code-review-graph serve. No sign-in or API key is needed, and the graph is built on your machine. The code-review-graph install command detects supported AI coding tools and writes an MCP entry for each. A GitHub Action for risk-scored pull request reviews is also available.

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  • Build a persistent Tree-sitter graph of a codebase
  • Trace blast radius of a change to callers, dependents and tests
  • Return a small slice of context shaped to the question
  • Update the graph incrementally via hooks or watch mode
  • Add custom languages through a languages.toml file
  • Configure detected AI coding tools with one install command

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  • Build the code review graph for this project

  • What is the blast radius of my changes in this branch?

  • Which tests cover the functions I modified?

  • Review my latest changes using only the files they affect

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Claude Code

  1. Run this in a terminal, in your project folder:
claude mcp add --transport stdio code-review-graph -- uvx code-review-graph serve
  1. Start Claude Code and type /mcp. code-review-graph should show as connected.

Add --scope user to make it available in every project.

Claude Desktop

  1. Open Settings → Developer → Edit Config. It opens claude_desktop_config.json. Add:
claude_desktop_config.json
{
  "mcpServers": {
    "code-review-graph": {
      "command": "uvx",
      "args": [
        "code-review-graph",
        "serve"
      ]
    }
  }
}
  1. Save the file and restart Claude Desktop.

Needs uv (Python) on your computer. The file lives in ~/Library/Application Support/Claude/ on macOS and %APPDATA%\Claude\ on Windows.

Cursor

Add to Cursor a11y.new_tab

Or add it by hand to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project):

mcp.json
{
  "mcpServers": {
    "code-review-graph": {
      "command": "uvx",
      "args": [
        "code-review-graph",
        "serve"
      ]
    }
  }
}

Needs uv (Python) on your computer.

VS Code

Install in VS Code a11y.new_tab

Or from a terminal:

code --add-mcp '{"name":"code-review-graph","type":"stdio","command":"uvx","args":["code-review-graph","serve"]}'

Or commit it to the repo in .vscode/mcp.json:

.vscode/mcp.json
{
  "servers": {
    "code-review-graph": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "code-review-graph",
        "serve"
      ]
    }
  }
}

Needs uv (Python) on your computer.

Devin Desktop

  1. Add it to ~/.config/devin/mcp_config.json (macOS and Linux) or %APPDATA%\devin\mcp_config.json (Windows):
mcp_config.json
{
  "mcpServers": {
    "code-review-graph": {
      "command": "uvx",
      "args": [
        "code-review-graph",
        "serve"
      ]
    }
  }
}
  1. Refresh the MCP server list in Cascade.

Devin Desktop is the new name for Windsurf.

Codex

codex mcp add code-review-graph -- uvx code-review-graph serve

Or edit ~/.codex/config.toml directly:

config.toml
[mcp_servers.code-review-graph]
command = "uvx"
args = ["code-review-graph", "serve"]

Needs uv (Python) on your computer.

Gemini CLI

gemini mcp add code-review-graph uvx code-review-graph serve

This adds it to the current project. Add -s user to use it everywhere.

Any client

Most clients that start local servers accept this shape:

{
  "mcpServers": {
    "code-review-graph": {
      "command": "uvx",
      "args": [
        "code-review-graph",
        "serve"
      ]
    }
  }
}

Zed puts servers under context_servers in its settings, with the same command, args and env fields.

Needs uv (Python) on your computer.

listing.faq

Can I paste mcp.tc/i/code-review-graph into my MCP client?

No. Code Review Graph runs on your own computer, started by your client, so it has no web address to connect to. The quick link is the page to share; the install command is uvx code-review-graph serve.

Does Code Review Graph need an API key?

No. It doesn't declare any keys or environment variables. It runs with your user account's permissions, so check what its tools can reach.

Is Code Review Graph a remote or a local server?

Local. Your client starts it as a process on your computer with uvx code-review-graph serve, which needs uv (Python).

What can Code Review Graph do?

You can build a persistent Tree-sitter graph of a codebase, trace blast radius of a change to callers, dependents and tests and return a small slice of context shaped to the question.

Which clients can use it?

Any client that starts local servers: Claude Code, Claude Desktop, Cursor, VS Code, Devin Desktop, Codex, Gemini CLI, Zed and others. claude.ai and ChatGPT only connect to remote servers.

Who wrote this page?

mcp.tc's robot read Code Review Graph's public metadata (its package and repository pages), and an AI model drafted the text from it. A person reviews anything the checks can't confirm. The text can still be wrong, so if you spot a mistake, use Report this listing on this page.

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JSON

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https://mcp.tc/i/code-review-graph.json

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