Why Playbooks Matter
When production is on fire at 3 AM, you don’t want to be figuring out the process. A well-structured playbook turns chaos into a sequence of executable steps.
The Structure
Every playbook should answer three questions:
- What’s happening? — Detection and classification
- Who does what? — Roles and responsibilities
- How do we fix it? — Step-by-step remediation
Severity Levels
| Level | Impact | Response Time | Who’s Paged |
|---|---|---|---|
| SEV1 | Full outage | Immediate | Incident Commander + On-call |
| SEV2 | Partial degradation | 15 min | On-call engineer |
| SEV3 | Minor impact | Next business day | Team lead |
Post-Incident
The blameless postmortem is where real learning happens. Focus on:
- Timeline reconstruction
- Contributing factors (not root cause — it’s rarely just one thing)
- Action items with owners and deadlines
The goal isn’t to prevent all incidents. It’s to get better at responding to them.