CodeGraph

Developer Colby McHenry released CodeGraph, an open-source tool that builds a pre-indexed knowledge graph of a codebase and keeps it synced automatically as code changes. It works with popular AI coding assistants including Claude Code, Codex, Gemini, Cursor, Copilot and others, aiming to cut token usage and tool calls while running entirely locally. The project is written in C and is gaining attention on GitHub.