post-mortems-retrospectives
Help users run effective post-mortems and retrospectives. Use when someone is reviewing a project that succeeded or failed, wants to establish learning practices, is dealing with failure aftermath, or needs to improve team learning loops.
Profile →npx skills add majiayu000/claude-skill-registry --skill post-mortems-retrospectives-refoundai-lenny-skills-2 --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Post-mortems & Retrospectives Help the user run effective post-mortems and retrospectives that drive genuine learning using frameworks from 11 product leaders. ## How to Help When the user asks for help with post-mortems or retrospectives: 1. **Understand the context** - Ask whether this is after a failure, a success, or a routine checkpoint 2. **Set the right tone** - Help them frame the exercise as learning-focused rather than blame-focused 3. **Structure for insights** - Guide them toward formats that surface actionable learnings 4. **Ensure follow-through** - Help them create mechanisms to act on what they learn ## Core Principles ### Pre-mortems need kill criteria Annie Duke: "A pre-mortem is only effective if it results in 'kill criteria' - pre-determined signals that will trigger a pivot or shutdown." Identify early signals that a project is failing during the pre-mortem and pre-commit to specific actions if those signals are met. ### Reframe failure as growth Carole Robin: "The acronym is A-F-O-G, another F-ing... Another Fucking Opportunity for Growth. My question, when something has gone wrong or a person has experienced a failure, my first question is always, so what d
- How to Help
- Core Principles
- Pre-mortems need kill criteria
- Reframe failure as growth
- Call them retrospectives, not post-mortems
- Institutionalize learning reviews
- Grade OKRs for learning, not performance
- Make it blameless
- Questions to Help Users
- Common Mistakes to Flag
- Deep Dive
- Related Skills
What does the post-mortems-retrospectives skill do?
Help users run effective post-mortems and retrospectives. Use when someone is reviewing a project that succeeded or failed, wants to establish learning practices, is dealing with failure aftermath, or needs to improve team learning loops.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill post-mortems-retrospectives-refoundai-lenny-skills-2 --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.