Updated September 2026.
An incident is not the moment to invent a process. Teams need a runbook before the pager goes off, because stress makes coordination harder and guesswork more expensive.
The runbook does not need to be huge. It needs to be clear enough that people know who leads, who communicates, what to fix first, and how to learn afterward.
Quick answer: An SRE incident response runbook should define severity levels, incident roles, escalation paths, communication channels, mitigation steps, evidence collection, status update cadence, customer impact language, rollback options, and postmortem expectations. Practice the process before a real incident happens.
Define roles before the incident
Google’s SRE material on managing incidents emphasizes prepared incident management. Common roles include incident commander, operations lead, communications lead, subject matter experts, and scribe.
- Incident commander coordinates.
- Operations lead drives mitigation.
- Comms lead updates stakeholders.
- Scribe records timeline and decisions.
- SMEs investigate specific systems.
Make severity practical
Severity levels should help teams choose response speed and communication, not create debate. Tie severity to customer impact, data risk, revenue impact, and operational scope.
Prioritize mitigation first
During an incident, stop the bleeding. Roll back, disable a feature, fail over, scale capacity, block abusive traffic, or route around a dependency. Root cause analysis comes after service is stable.
detect -> declare -> assign roles -> mitigate -> communicate -> stabilize -> reviewWrite postmortems that improve systems
Postmortems should identify contributing factors and follow-up work. CodeRise’s observability services help teams build the evidence needed for better incident reviews.
FAQ
What belongs in an incident runbook?
Roles, severity, escalation, communication templates, mitigation steps, dashboards, rollback instructions, evidence collection, and postmortem process.
Who should be incident commander?
Someone trained to coordinate the response. They do not need to be the deepest technical expert on the failing service.
How soon should a postmortem happen?
Usually within a few business days, while context is fresh and before follow-up work loses momentum.
Helpful references
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