Walk the Incident by Signals
Apply golden-signal reasoning during a platform incident to choose evidence before action.
Live incident Shared ingress is paging. Checkout latency is reported as 'bad,' but the alert text says only 'controller CPU high.' You are incident lead for the platform layer. The danger is acting on the loudest internal metric before confirming the user-visible failure mode. SRE signal discipline Latency -> Traffic -> Errors -> Saturation Use golden signals to orient before you act. They separate symptoms users feel from pressure the system experiences. Guess Rollback the newest thing. A response tied to evidence, not recency bias. The first mitigation should match the first confirmed user-impact signal. 01 Impact 02 Scope 03…
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