A review that hunts for someone to blame teaches the team to hide mistakes. A review that asks why each decision made sense at the time teaches the system to get better.
A template that fits on one page
- What happened, as a timeline with timestamps.
- What customers experienced, and for how long.
- Why each decision looked reasonable with the information available.
- What you will change, with an owner and a date for each item.
Write it while it is fresh
Hold the review within a few days, while people still remember what they saw. Your incident timeline already records when alerts fired and who acknowledged them, so start from that instead of from memory.