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2025-03-31

This project runs a Model Context Protocol (MCP) server that wraps the CodeQL query server. It enables tools like [Cursor](https://cursor.sh/) or AI agents to interact with CodeQL through structured commands.

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CodeQL MCP Server

This project runs a Model Context Protocol (MCP) server that wraps the CodeQL query server. It enables tools like Cursor or AI agents to interact with CodeQL through structured commands and doc search.


Features

  • ✅ Register CodeQL databases
  • ✅ Run full queries or quick-evaluate a symbol
  • ✅ Decode .bqrs files into JSON
  • ✅ Locate predicate/class symbol positions

File Structure

File Purpose
server.py Main FastMCP server exposing CodeQL tools
codeqlclient.py CodeQLQueryServer implementation (JSON-RPC handler)

Requirements

Install with uv:

uv pip install -r requirements.txt

or with pip:

pip install fastmcp httpx

Running the MCP Server

uv run mcp run server.py -t sse

Cursor Config

Make sure your .cusor/config.json contains:

{
  "mcpServers": {
    "CodeQL": {
      "url": "http://localhost:8000/sse"
    }
  }
}

Notes

  • Tools like Cursor will invoke these commands directly via natural language.
  • You must have a codeql binary in your $PATH, or hardcode its path in codeqlclient.py.
  • You should probably specify query locations, query write locations and database paths in your prompts.

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    Reviews

    3 (1)
    Avatar
    user_wdh0vHTP
    2025-04-17

    As a dedicated user of codeql-mcp, I must say this tool is an absolute game-changer in code analysis. Developed by JordyZomer, it offers robust functionality for identifying vulnerabilities and improving code quality. The integration with CodeQL is seamless, making it an essential tool for any developer serious about security. Highly recommend checking it out!