infra/.claude/skills/post-mortem/skill.md
Viktor Barzin 8badb8181a feat: post-mortem automation pipeline
E2E workflow for incident post-mortems:
1. /post-mortem skill generates structured post-mortem markdown
2. Woodpecker pipeline triggers on docs/post-mortems/*.md changes
3. parse-postmortem-todos.sh extracts safe TODOs (Alert/Config/Monitor)
4. postmortem-todo-resolver agent implements TODOs headlessly
5. Agent updates post-mortem with Follow-up Implementation table

Components:
- .claude/skills/post-mortem/ — writer skill + template
- .claude/agents/postmortem-todo-resolver.md — headless agent
- .woodpecker/postmortem-todos.yml — CI pipeline
- scripts/parse-postmortem-todos.sh — TODO extractor
- cluster-health skill — auto-suggest post-mortem after recovery

Safety: only auto-implements Alert/Config/Monitor types.
Architecture/Migration/Investigation items are skipped.

[ci skip]

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-14 15:34:42 +00:00

2.5 KiB

Post-Mortem Writer

Generate a structured post-mortem document after an incident mitigation session.

When to use

  • After /post-mortem command
  • Auto-suggested when cluster health transitions from UNHEALTHY → HEALTHY

Instructions

  1. Gather context:

    • Run .claude/scripts/sev-context.sh to capture current cluster state
    • Review the conversation history for: what broke, timeline, root cause, what was fixed
    • Check existing post-mortems at docs/post-mortems/ for format reference
  2. Generate the post-mortem:

    • Use the template at .claude/skills/post-mortem/template.md
    • Fill in all sections from the investigation context
    • Critical: In the Prevention Plan tables, set the Type column correctly:
      • Alert — add/modify Prometheus alerting rules (auto-implementable)
      • Config — change Terraform config, NFS options, etc. (auto-implementable)
      • Monitor — add Uptime Kuma monitors (auto-implementable)
      • Architecture — storage migration, stack redesign (human-only)
      • Investigation — needs further research (human-only)
      • Runbook — document a procedure (human-only)
      • Migration — data or service migration (human-only)
    • Items already fixed during the session should have Status = Done
    • Items not yet done should have Status = TODO
  3. File naming: docs/post-mortems/<YYYY-MM-DD>-<slug>.md

    • Slug: lowercase, hyphenated, max 5 words describing the incident
  4. Update index: Add an entry to docs/post-mortems/index.html

    • Add a new card in the incidents grid with date, severity tag, title, description
  5. Commit and push:

    git add docs/post-mortems/<file>.md docs/post-mortems/index.html
    git commit -m "docs: post-mortem for <date> <title> [ci skip]"
    git push origin master
    
    • Use [ci skip] to avoid triggering app-stacks pipeline
    • NOTE: The postmortem-todos Woodpecker pipeline WILL trigger (it has its own path filter)

Type Reference for Prevention Plan

Type Auto-implementable? Examples
Alert Yes Add PrometheusRule, modify alert thresholds
Config Yes Change Terraform variables, mount options, CronJob schedules
Monitor Yes Add Uptime Kuma HTTP/TCP monitor
Architecture No Migrate storage class, redesign HA topology
Investigation No Research kernel bug, check Proxmox forum
Runbook No Document recovery procedure
Migration No Move data between storage backends