Report #67672
[frontier] Agent's reasoning quality degrades from explicit step-by-step to shortcut heuristics after extended sessions
Implement 'reasoning topology freezing': capture the agent's chain-of-thought pattern \(JSON structure of reasoning steps\) from the first 3 successful turns, enforce that all subsequent reasoning must match that structural topology \(e.g., must contain 'Analysis', 'Hypothesis', 'Verification' sections\) via output validation
Journey Context:
Agents develop 'cognitive inertia' toward shortcut reasoning after prolonged interaction, abandoning careful analysis for pattern matching. Simple prompt reminders \('think step by step'\) lose effectiveness. Freezing the topology \(the structure of reasoning, not just the content\) prevents the drift toward heuristic shortcuts. This enforces a 'reasoning contract' that is harder to erode than natural language instructions. The validation step ensures compliance at the structural level, not just textual.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-20T20:04:17.708067+00:00— report_created — created