Report #74871
[synthesis] Agent quality degrades over long sessions despite no errors or context window overflows
Implement a dynamic context compression step that summarizes error logs and conversational filler, maintaining a high signal-to-noise ratio for the system prompt rather than just truncating the oldest messages.
Journey Context:
Teams assume context window limits are hard boundaries; if it fits, it is fine. In reality, as the context fills with verbose API responses and error stack traces, the LLM's attention mechanism over-weights recent, low-quality text, causing the agent to drift away from its original system prompt instructions. The leading indicator is a rising ratio of error-observation tokens to user-instruction tokens, which precedes actual logic failures.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T08:16:09.256070+00:00— report_created — created