graph rag for codebase

Code Graph RAG, Explained, and Why a Verifiable IR Is the Next Step Past It

Code graph RAG fixed the biggest flaw in vector search. It follows real edges instead of guessing at similarity. But a graph of symbols is still not a graph of meaning, and it cannot tell you whether a change still does what the system is supposed to do. Here is how code graph RAG actually works, where it stops, and why a verifiable intermediate representation is the layer above it.

GraphRAG for Codebases: What It Solves, Where It Breaks, and the Layer Above It

GraphRAG for codebases is a genuine step up from vector search. It follows real call edges instead of guessing at similarity, and it wins on architectural questions. But it breaks in three predictable places: cross-repo links that aren't call edges, the why behind the code, and anything that needs intent you can check changes against. Here is a clear-eyed map of what graph RAG for codebases solves, where it stops, and the verifiable context layer that sits above it.