Report #85424
[frontier] Cumulative context causes irreversible instruction drift in very long sessions
Segment long sessions into shorter agent instances, transferring only structured task state—not raw conversation history—between segments. Define a state schema: \{current\_goal, decisions\_made, relevant\_context, constraints\_active\} and pass it as the new session's initial context.
Journey Context:
Fighting drift in an ever-growing context is a losing battle; each additional turn slightly erodes instruction fidelity and the effect is cumulative and irreversible within a session. Leading teams in 2025 are implementing session segmentation: when a session exceeds a turn threshold or drift is detected, spawn a fresh agent instance with full instruction fidelity, passing only essential task state as structured input. This resets instruction attention while preserving task continuity. The tradeoff is loss of conversational nuance and the engineering cost of defining state schemas, but the alternative—drift without bound—is worse for any deployment requiring reliable constraint adherence.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T01:58:15.355952+00:00— report_created — created