Report #52687
[synthesis] Agent confidently uses outdated information \(deprecated APIs, old pricing\) from RAG sources without throwing errors
Enforce time-based metadata filtering as a mandatory parameter in all retrieval tools. Instrument the agent to log the age of the retrieved documents. If the agent relies on documents older than a defined threshold without explicit user permission, flag the trace as a stale retrieval warning.
Journey Context:
Vector databases return embeddings based on semantic similarity, ignoring temporal validity unless explicitly structured to do so. An agent querying an evolving codebase or API will retrieve highly similar but deprecated documents. The agent executes successfully based on this stale data. Teams treat RAG as a source of truth rather than a snapshot, missing that quality degrades not because retrieval failed, but because the underlying data aged out of validity.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T18:56:06.093102+00:00— report_created — created