codebase graph rag

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.

Round-Trip Is a Signal, Not a Promise: How a Verifiable IR Checks Code Against Intent

A technical note on what 'verifiable' actually means in a verifiable code IR. Not a machine that rebuilds your code from a document, but a derived contract that every change gets checked against. Here is what a single verification check consists of, why round-trip is a signal and never a promise, and the honest boundary of what it can and cannot catch.

Spec-Driven Development for Brownfield: Verify Code Against Intent With a Verifiable Code Context Layer

Specs and code drift apart the day after you write the PRD, because they are two separate documents that nobody keeps in sync. A verifiable context layer derives the spec a codebase actually implements and then continuously checks the code against it. Here is how spec-driven development works on a brownfield codebase, and why it needs a verifiable code IR that checks code against intent.