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Ship & Operate

Bug Postmortem

A blameless, root-cause postmortem for a single bug. Fix the system that let it through, not the person who shipped it.

What’s inside

  • Summary and impact. Severity, duration, users affected and SLO impact.
  • Timeline and root cause. Timestamped events and the underlying system flaw.
  • Contributing factors. What else let it through.
  • Actions. Owned and dated, tracked to done.

How to use it

  1. Write the system's failure, not the person's.
  2. Find the root cause, not just the trigger.
  3. List what went well as well as what did not.
  4. Track every action to done.

USE NEXT

Incident Postmortem

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