Report #21457
[architecture] Agent fails to answer questions requiring connecting multiple distinct facts across memory
Implement Graph RAG or multi-hop retrieval. Store relationships as edges in a knowledge graph, or use an iterative retrieval loop where the agent extracts entities from the initial retrieval results and uses them as new queries.
Journey Context:
Vector databases excel at single-hop semantic matching but fail at relational reasoning. If Fact A and Fact B are stored as separate chunks, a query connecting them will likely fail because neither chunk fully answers the question. Naive RAG just does a single search. Graph RAG solves this by allowing traversal \(A -> X -> B\). Iterative retrieval is a lighter alternative if a graph is too heavy, but Graph RAG is the right call for complex, relational domains.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T14:25:44.266617+00:00— report_created — created