Agent skill
postmortem-writing
Write effective blameless postmortems with root cause analysis, timelines, and action items. Use when conducting incident reviews, writing postmortem documents, or improving incident response processes.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/postmortem-writing-michael-bodo-lt-mission-control
SKILL.md
Postmortem Writing
Comprehensive guide to writing effective, blameless postmortems that drive organizational learning and prevent incident recurrence.
Do not use this skill when
- The task is unrelated to postmortem writing
- You need a different domain or tool outside this scope
Instructions
- Clarify goals, constraints, and required inputs.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
- If detailed examples are required, open
resources/implementation-playbook.md.
Use this skill when
- Conducting post-incident reviews
- Writing postmortem documents
- Facilitating blameless postmortem meetings
- Identifying root causes and contributing factors
- Creating actionable follow-up items
- Building organizational learning culture
Core Concepts
🧠 Knowledge Modules (Fractal Skills)
1. 1. Blameless Culture
2. 2. Postmortem Triggers
3. Postmortem Timeline
4. Template 1: Standard Postmortem
5. What Happened
6. Why It Happened
7. System Diagram
8. What Worked
9. What Didn't Work
10. Detection Gap
11. What Worked
12. What Could Be Improved
13. Customer Impact
14. Business Impact
15. Technical Impact
16. What Went Well
17. What Went Wrong
18. Where We Got Lucky
19. Supporting Data
20. Related Incidents
21. References
22. Template 2: 5 Whys Analysis
23. Why #1: Why did the service fail?
24. Why #2: Why were database connections exhausted?
25. Why #3: Why did the code bypass the connection pool?
26. Why #4: Why wasn't this caught in code review?
27. Why #5: Why isn't there a safety net for this type of change?
28. Template 3: Quick Postmortem (Minor Incidents)
29. Running a Postmortem Meeting
30. 1. Opening (5 min)
31. 2. Timeline Review (15 min)
32. 3. Analysis Discussion (20 min)
33. 4. Action Items (15 min)
34. 5. Closing (5 min)
35. Do's
36. Don'ts
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