CodeQL FAQs

Question 1

What is CodeQL MCP Server?

Accepted Answer

CodeQL MCP Server is a tool that wraps the CodeQL query server, allowing AI agents and tools like Cursor to interact with CodeQL through structured commands.

Question 2

How do I configure CodeQL MCP Server with Cursor?

Accepted Answer

Add a `CodeQL` entry in your `.cursor/config.json` with the URL pointing to your running server, e.g., `http://localhost:8000/sse`.

Question 3

What are the main features of CodeQL MCP Server?

Accepted Answer

It registers CodeQL databases, runs queries, decodes `.bqrs` files into JSON, and locates predicate/class symbol positions. It facilitates interaction with CodeQL through structured commands.

Question 4

How do I install CodeQL MCP Server?

Accepted Answer

You can install it using `uv pip install -r requirements.txt` or `pip install fastmcp httpx`. Ensure you have a CodeQL binary in your $PATH.

Question 5

What is the purpose of the server.py and codeqlclient.py files?

Accepted Answer

`server.py` is the main FastMCP server exposing CodeQL tools, while `codeqlclient.py` provides the CodeQLQueryServer implementation using JSON-RPC.

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