Recall the practical steps of a model rollback decision.
ROLL What does ROLL check first? ROLL means Route, Old artifact, Linked config, and Logs: restore the whole decision system, not only the endpoint. Rollback versus retrain Rollback protects users while retraining creates a future fix. Handle: "Can we just lower the threshold?" Only if the failure is threshold-specific. If feature, artifact, or score distribution changed, threshold edits may mask the incident and damage other segments. Can we just lower the threshold instead of rolling back? Your line Symptom tuning can destroy evidence. It keeps threshold changes tied to root cause and blast radius. What makes rollback safe? A last…
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