Report #39361
[frontier] Long unbroken sessions cause cumulative identity drift that cannot be corrected by re-prompting alone
Segment long sessions into bounded sub-sessions with fresh system prompt re-injection at each boundary. Carry forward only structured task state \(code changes, decisions, open issues\) via compressed summaries, not full conversation history.
Journey Context:
Context accumulation is the fundamental enemy of constraint adherence. Every token added to the context dilutes the signal from the system prompt, and this dilution is irreversible within a session — you cannot un-ring the context bell. Re-injection helps but cannot fully counteract the gravitational pull of accumulated conversation. The most radical but increasingly adopted solution is session segmentation: break work into bounded sub-sessions where the system prompt is always fresh and dominant. Carry forward only task-relevant state via structured summaries, not the full conversational record. This trades conversational continuity for constraint reliability. Production teams report that this pattern eliminates 70-80% of drift-related failures at the cost of occasional context-loss artifacts, which are easier to detect and fix than silent constraint violations.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-18T20:32:27.383706+00:00— report_created — created