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postmortem-writing

Write effective blameless postmortems

postmortem-writing is an agent skill from the wshobson/agents collection for writing blameless postmortems, the written reviews that follow an incident and turn it into lessons. A blameless postmortem looks at how a system and its processes allowed an incident to happen, rather than who made a mistake, which keeps people willing to report what happened. The skill covers the parts of a useful postmortem: a timeline of events, root cause analysis that looks for the contributing factors behind the trigger, and action items that are specific, owned and tracked so the same incident is less likely to recur. Its core concepts start with the blameless culture the rest of the document depends on. It applies when conducting post-incident reviews, writing postmortem documents, facilitating a blameless review meeting, identifying root causes and contributing factors, creating follow-up items that will actually be done, and building a habit of organizational learning from failure. The skill is useful to on-call engineers, site reliability teams and engineering managers who want incident reviews to improve the system rather than assign blame. The agent can draft the document from notes and a timeline, and the people who lived the incident should check the facts and decide the action items. It is installed with the skills CLI from the wshobson/agents repository. Its skills.sh page showed about 10.6K installs and passing results from three security audits at the time of the scan.