Agent Skills
› NeverSight/learn-skills.dev
› rca-postmortem
rca-postmortem
GitHub用于执行无责事后复盘，生成包含影响摘要、时间线、根因、防御缺口及可验证改进措施的报告，旨在防止问题复发并跟踪后续行动。
Trigger Scenarios
发生线上事故后
发现严重Bug需复盘时
Install
npx skills add NeverSight/learn-skills.dev --skill rca-postmortem -g -y
SKILL.md
Frontmatter
{
"name": "rca-postmortem",
"description": "Perform a blameless RCA\/postmortem with impact summary, timeline, root causes, defense gaps, and actionable remediation items with owners and validations. Use after incidents\/bugs to prevent recurrence and track follow-ups."
}
RCA / Postmortem
1. Impact Summary
- What happened, when, duration
- Who/what was impacted
- Severity (S0–S3) + rationale
Expected: Clear statement of user/business impact.
2. Timeline
- Detection → triage → mitigation → resolution
- Include decision points and unknowns
Expected: Timeline is factual and complete enough to reason about.
3. Root Cause Analysis
- Immediate cause (trigger)
- Root causes (systemic contributors)
- “Why chain” (5 whys), focusing on system/process, not blame
Expected: Root causes explain why the incident was possible.
4. Defense Gaps
- Monitoring/alerts gaps
- Missing/weak tests
- Review gaps
- Rollout/release guardrails gaps
Expected: Identified missing guardrails.
5. Remediation Plan (Actionable)
Split into:
- Fix now (stop the bleeding)
- Fix right (harden/refactor/redesign)
- Prevent (tests, alerts, docs, runbooks)
Each action item must include:
- Owner
- Priority
- Due date
- Validation method
Expected: Follow-ups are owned, prioritized, and verifiable.
6. Verification
- Add tests that reproduce the issue and prevent recurrence.
- Validate via canonical commands from
PROJECT.md.
Expected: Regression is prevented by automated checks.
Output
Save to docs/rca/RCA-[yyyy-mm-dd]-[short-title].md.
Version History
- e0220ca Current 2026-07-05 23:18
