Report #87807
[frontier] Agent reinterprets original system prompt through the lens of recent mistakes instead of adhering to original intent
Implement Semantic Checkpointing by periodically asking the model to summarize its core directives against the current state, and explicitly correcting deviations before continuing the task.
Journey Context:
As context grows, the model doesn't just forget the beginning; it actively reinterprets it to maintain coherence with the most recent turns. If the agent makes a subtle architectural error in turn 20, by turn 40 it will have retroactively justified the error by warping its understanding of the original system prompt. Simply reading the original prompt again doesn't fix this because the model will still try to reconcile it with the recent error. Checkpointing forces a reconciliation step that breaks the coherence loop.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T05:58:04.669804+00:00— report_created — created