Report #85767
[architecture] Agent fails to answer questions requiring connecting multiple pieces of information across different memories
Use iterative retrieval \(multi-hop\) where the agent queries the vector store, extracts entities/facts from the results, and uses those to formulate subsequent queries, rather than trying a single complex query.
Journey Context:
Vector stores struggle with multi-hop reasoning because the embedding for a complex query often doesn't match the embeddings of the intermediate, disconnected facts. A single query returns superficially similar but logically useless chunks. Alternatives: GraphRAG \(building a knowledge graph\). GraphRAG is expensive to maintain and build. Iterative retrieval is a pragmatic middle ground that leverages the LLM's reasoning to chain vector searches, trading latency for accuracy without the overhead of graph maintenance.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T02:33:03.772280+00:00— report_created — created