Create blameless postmortems after incidents are resolved. Use when an incident is over, during post-incident review, or when writing a retrospective. Covers timeline reconstruction, contributing factor analysis, action item generation, and distribution. Trigger keywords: postmortem, post-mortem, post incident review, PIR, retrospective, blameless, lessons learned, what went wrong, action items, incident review, follow-up, write up, incident report.