26.3 26.2 26.1 26.0 25.3 25.2 25.1 25.0
26.3 26.2 26.1 26.0 25.3 25.2 25.1 25.0

Operability

A service is only robust if it can be run and supported confidently in production: failures need to be diagnosable quickly, logs need to say something useful without drowning the signal, and releases need to be predictable.

Why it matters

A service that only its original developer can debug is not production-ready, no matter how well it was built. Operability determines how fast an incident gets diagnosed and resolved — and how much of that burden falls on people who didn't write the service.

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