Codebase Memory — Knowledge Graph Tools

Graph tools return precise structural results in ~500 tokens vs ~80K for grep.

Two halves to this skill. Querying (below) is easy. Indexing is where it goes wrong — a careless index_repository on a Skyrim mod tree produces a 200,000-node graph of animation files that costs tokens on every query and answers nothing. Read "Indexing discipline" before your first index_repository on any repo.

Quick Decision Matrix