Report #92357
[architecture] Agent memory database growing infinitely and degrading retrieval quality
Implement a memory consolidation and decay pipeline. Periodically synthesize raw episodic memories \(chat logs\) into semantic memories \(core facts/preferences\), then delete or archive the raw episodic nodes. Apply an exponential decay function to access frequency so unused memories naturally fall below the retrieval threshold.
Journey Context:
A common mistake is treating the vector database as an append-only log. Over time, duplicate, contradictory, and trivial memories accumulate, severely increasing retrieval noise and latency \(the needle in a haystack problem gets worse\). The tradeoff is storage/compute cost vs. recall accuracy. By mirroring human memory—forgetting trivial details and consolidating repeated events into generalized rules—you keep the vector store dense with high-signal facts.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T13:36:46.387251+00:00— report_created — created