Report #1470
[architecture] Agent context window overflows or degrades from stuffing too much retrieved memory
Implement a tiered memory architecture: hot \(working context window\), warm \(recent session vector store\), and cold \(long-term compressed semantic store\). Only promote memory to the hot tier if it directly resolves the current reasoning step.
Journey Context:
Developers often treat RAG as a way to dump massive text into the context window, assuming the LLM will figure it out. However, LLMs suffer from 'lost in the middle' degradation and distraction when context is bloated with irrelevant retrieved chunks. The tradeoff is retrieval latency vs. cognitive load on the model. Keeping the working context lean and highly relevant, using the vector store as a pointer system rather than a dumping ground, yields significantly better reasoning and reduces token waste.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-14T23:31:31.410843+00:00— report_created — created