Your company follows Site Reliability Engineering principles. You are writing a postmortem for an incident, triggered by a software change that severely affected users. You want to prevent severe inci

Identifying responsible engineers and escalating to senior management is contrary to the blameless culture of SRE, which focuses on systemic improvements rather than individual blame.

A core SRE principle for preventing incidents stemming from software changes is to improve the reliability and coverage of automated testing. Ensuring that test cases designed to catch the type of errors that caused the incident are run successfully before new software is released directly addresses the root cause of the incident and prevents recurrence.

Following up with code reviewers and prescribing practices can be seen as punitive and does not guarantee systemic improvement, as it focuses on individual correction rather than process enhancement.

Designing a policy for on-call teams to immediately call engineers and management is a reactive measure during an incident, not a preventative action to stop severe incidents from happening in the first place.