CGIS Code Graph MCP Server

Ask "what breaks if I change this?" and get the call chain, not a guess. CGIS parses a repository with tree-sitter into a graph of fully qualified symbols and the calls, imports and containment between them, stores it in SQLite, and serves it to AI agents over MCP. An agent that would otherwise grep and read whole files asks the graph instead. It runs locally over stdio via the published package.

People who work with call graph, static analysis and tree sitter and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-09-25 · ★ 2 · #145 OF 998 MAINTAINED OTHER · VERIFIED 2026-09-30

MIT · Python servers · how we verify → /methodology

01 · Install CGIS Code Graph

before you install - you'll need

Set GUARDIAN_PROVIDER before connecting.

Claude Code

claude mcp add zaebee-codegraph-brain -- uvx codegraph-brain

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "zaebee-codegraph-brain": {
      "command": "uvx",
      "args": [
        "codegraph-brain"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

pypi package codegraph-brain - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.zaebee is GitHub-verified and matches the repo owner

03 · What CGIS Code Graph can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

codegraph-brain-v0.25.4 · 2026-09-25

0.25.4 (2026-09-25) · resolve TypeScript imports of declaration files (#511) (db8c578), closes #507 · resolve TypeScript imports of workspace packages · auto-sync architecture graph and MCP reference

codegraph-brain-v0.25.3 · 2026-09-18

0.25.3 (2026-09-18) · TYPE_CHECKING imports are not a runtime dependency · auto-sync architecture graph and MCP reference

codegraph-brain-v0.25.2 · 2026-09-18

0.25.2 (2026-09-18) · module imports reconcile the layout prefix

04 · Who maintains CGIS Code Graph

CGIS Code Graph is maintained by zaebee. We track 2 MCP servers from zaebee - 2 actively maintained, 2 combined GitHub stars, oldest repo from Jun 2026.

05 · Facts

repository: github.com/zaebee/codegraph-brain
category: other - ranked #145 of 998 actively-maintained other servers as of 2026-09-30.
release cadence: 10+ releases in the last 90 days (latest 2026-09-25)
registry: io.github.zaebee/codegraph-brain (active, first published 2026-09-17 · 12 versions)
packages: pypi:codegraph-brain

06 · CGIS Code Graph FAQ

What is CGIS Code Graph?

Is CGIS Code Graph still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-25 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install CGIS Code Graph?

Run `uvx codegraph-brain`. The README documents one environment variable (GUARDIAN_PROVIDER) to set first. Set GUARDIAN_PROVIDER before connecting. You can also paste the ready-made client config above.

Does CGIS Code Graph run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to CGIS Code Graph

Alternatives to CGIS Code Graph

Maintained other servers if CGIS Code Graph isn't the fit.

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