Confirm the signal is real, identify blast radius, and check a known-good dashboard for baseline comparisons. If revenue or data integrity may be threatened, flip to containment immediately. Capture two sentences of notes as you go. That tiny discipline powers later clarity, helps customer messaging, and prevents chasing ghosts when a noisy monitor falsely screams during normal daily batch processing.
Prefer reversible actions: scale replicas, disable a noisy job, or roll back the last deploy if correlated. Re-run health checks you trust, and snapshot critical logs before they rotate. If you lack certainty, choose the smallest safe lever that buys time. Many solo founders report that one carefully chosen rollback within ten minutes preserved uptime and protected data while deeper diagnosis continued calmly.
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