Code-Graph-RAG

What it does

Code-Graph-RAG provides a sophisticated Retrieval-Augmented Generation (RAG) system that maps entire multi-language codebases into a knowledge graph using Memgraph and Tree-sitter. It allows AI agents to understand deep architectural relationships, call graphs, and structure across monorepos, enabling high-precision queries and surgical code edits.

Tools

• query_code_graph: Natural language querying of the codebase structure via Cypher.
• get_code_snippet: Precise retrieval of source code for specific functions or classes.
• surgical_replace_code: AST-based surgical code replacement to avoid breaking changes.
• semantic_search: Vector-based search for functions based on purpose/intent.
• index_repository: Parses and ingests a repository into the graph database.

Installation

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "code-graph-rag": {
      "command": "uv",
      "args": ["--directory", "/path/to/code-graph-rag", "run", "code-graph-rag", "mcp-server"]
    }
  }
}

Supported hosts

• Claude Desktop
• Claude Code