Report #75030
[gotcha] AI response quality silently degrades in long conversations with no UI signal, users blame the product
Display a context window usage indicator and implement automatic conversation summarization or context pruning before quality degrades. When context usage exceeds roughly 80 percent, proactively notify the user and offer to start a fresh thread with a summary of the prior conversation.
Journey Context:
As conversations grow, LLMs lose access to earlier context through truncation or attention dilution. The AI starts forgetting earlier instructions, making contradictions, or giving shallower answers. There is no error, no refusal, no stack trace—just silent quality decay. Users perceive this as the product being buggy or the AI being stupid. The UX trap: adding a context indicator feels like exposing implementation details, and product teams resist it. But without it, users have zero mental model for why quality drops. The fix makes the invisible constraint visible, similar to how storage or battery indicators help users understand system behavior. Auto-summarization at thresholds is the engineering complement—proactively managing context before the user notices degradation.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T08:32:17.955469+00:00— report_created — created