What RAG throws away.
Embedding your code flattens it into disconnected chunks. Graphify keeps the entities and the typed relationships between them, and hands your coding assistant a graph it can traverse.
A code knowledge graph is a structured representation of a codebase in which functions, classes, files, tables, and docs are nodes, and their real relationships — calls, imports, defines, references — are typed, directed edges. Where RAG retrieves chunks of text that resemble a question, a knowledge graph lets an assistant traverse those edges, answering multi-hop questions by following an explicit, inspectable path.
Why relationships beat similarity
Retrieval-augmented generation — introduced by Lewis et al. (2020) for knowledge-intensive NLP over Wikipedia — splits your documents into chunks, embeds them, and pulls the top-k most similar chunks at query time. It works for lookup, but it throws away the one thing agents need to reason: how things connect. Graphify keeps that structure as entities and typed relationships, so an agent can follow a real path from question to answer.
The multi-hop failure isn't a tuning problem; it's architectural. A top-k lookup is a single round of nearest-neighbor search, but a two-hop question needs the answer to hop one before hop two can even be formulated — multi-hop reasoning is hard enough for retrieval systems that dedicated benchmarks like HotpotQA (Yang et al., 2018) were built to measure it. A graph sidesteps the problem: each hop is one edge, so a three-hop question is a three-edge traversal, and the third hop is exactly as reliable as the first. Notably, the RAG literature itself has been moving this direction — GraphRAG (Edge et al., 2024) builds a knowledge graph over the corpus precisely because flat chunk retrieval can't answer questions that span it. Graphify simply starts from the graph.
Freshness without re-embedding
When a source changes, RAG re-embeds: every stale chunk goes back through an embedding model before it can be retrieved again. Graphify's code edges come from a parser, not a model — tree-sitter walks the AST deterministically, with no API call — so a changed file means re-parsing that file and updating its nodes. The surrounding edges stay intact, and your memory stays current without a re-index tax.
Answers you can trace
Because every result is a traversal, every answer traces to a path through your real code. Every relationship on that path carries a confidence tag: EXTRACTED, INFERRED, or AMBIGUOUS. That's the difference between "the model probably saw the right chunk" and "here is the exact route it took, and how sure we are about each hop."
Common questions
Is graphify a replacement for my vector database?
Can I use both?
Does graphify use embeddings at all?
How hard is it to migrate off RAG?
Try it on your own repo.
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