claudegoodies
Skill

postmortem-writing

From wshobson

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.

Facts

Repository
wshobson/agents
Status
Actively maintained
Last commit
Source file
plugins/incident-response/skills/postmortem-writing/SKILL.md

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The instructions Claude Code reads when this skill runs.

# Postmortem Writing

Comprehensive guide to writing effective, blameless postmortems that drive organizational learning and prevent incident recurrence.

## When to Use This Skill

- 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

### 1. Blameless Culture

| Blame-Focused            | Blameless                         |
| ------------------------ | --------------------------------- |
| "Who caused this?"       | "What conditions allowed this?"   |
| "Someone made a mistake" | "The system allowed this mistake" |
| Punish individuals       | Improve systems                   |
| Hide information         | Share learnings                   |
| Fear of speaking up      | Psychological safety              |

### 2. Postmortem Triggers

- SEV1 or SEV2 incidents
- Customer-facing outages > 15 minutes
- Data loss or security incidents
- Near-misses that could have been severe
- Novel failure modes
- Incidents requiring unusual intervention

## Quick Start

### Postmortem Timeline

```
Day 0: Incident occurs
Day 1-2: Draft postmortem document
Day 3-5: Postmortem meeting
Day 5-7: Finalize document, create tickets
Week 2+: Action item completion
Quarterly: Review patterns across
View full source on GitHub →

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