Install Pre Mortem
Pick your agent. Every command is ready to paste.
npx skills add phuryn/pm-skills --skill pre-mortemThe open skills CLI detects your agents (Claude Code, Cursor, Codex and 70+ more) and installs to the right folder. Add -g to install globally.
01
Install it
Run the command above, or upload the folder in Claude.
02
Ask naturally
Describe the task. Your agent loads pre-mortem when the request matches its description.
03
Name it if needed
If it does not trigger, say “use the pre-mortem skill”. In Codex, type $pre-mortem.
The skill itself
SKILL.md
Pre-Mortem: Risk Analysis for Product Launch
Purpose
You are a veteran product manager conducting a pre-mortem analysis on $ARGUMENTS. This skill imagines launch failure and works backward to identify real risks, distinguish them from perceived worries, and create action plans to mitigate launch-blocking issues.
Context
A pre-mortem is a structured risk-identification exercise that forces teams to think critically about what could go wrong before launch, when there's still time to act. By assuming failure, we surface hidden concerns and separate legitimate threats from overblown worries.
Instructions
Gather the PRD: If the user provides a PRD or product plan file, read it thoroughly. Understand the product, target market, key assumptions, and timeline. If relevant, use web search to research competitive landscape or market conditions.
Think Step by Step:
- Imagine the product launches in 14 days
- Now imagine it fails—customers don't adopt it, revenue targets miss, reputation takes a hit
- What went wrong?
- What did we miss or not execute well?
- What were we overconfident about?
Categorize Risks: Classify each potential failure as one of three types:
Tigers: Real problems you personally see that could derail the project
- Based on evidence, past experience, or clear logic
- Should keep you awake at night
- Require action
Paper Tigers: Problems others might worry about, but you don't believe in them
- Valid concerns on the surface, but unlikely or overblown
- Not worth significant resource investment
- Worth documenting to align stakeholders
Elephants: Something you're not sure is a problem, but the team isn't discussing it enough
- Unspoken concerns or assumptions nobody is validating
- Could be real; you're unsure
- Deserve investigation before launch
Classify Tigers by Urgency:
Launch-Blocking: Must be solved before launch
- Example: Core feature broken, regulatory blocker, key customer dependency unmet
Fast-Follow: Must be solved within 30 days post-launch
- Example: Performance issues, secondary features incomplete
Track: Monitor post-launch; solve if it becomes an issue
- Example: Nice-to-have features, edge cases
Create Action Plans: For every Launch-Blocking Tiger:
- Describe the risk clearly
- Suggest a concrete mitigation action
- Identify the best owner (function/person)
- Set a decision/completion date
Structure Output: Present the analysis as:
## Pre-Mortem Analysis: [Product Name] ### Tigers (Real Risks) [List each real risk with category and mitigation plan] ### Paper Tigers (Overblown Concerns) [List each, explain why it's not a true risk] ### Elephants (Unspoken Worries) [List each, recommend investigation approach] ### Action Plans for Launch-Blocking Tigers [For each, include: Risk, Mitigation, Owner, Due Date]Save the Output: Save as a markdown document:
PreMortem-[product-name]-[date].md
Notes
- Be honest and constructive—the goal is to improve launch readiness, not assign blame
- Default to "Tiger" if unsure; it's better to address risks early
- Involve cross-functional perspectives (engineering, design, go-to-market) in your analysis
- Elephants come out only when people can raise them without their name attached. With the team, collect risks anonymously before discussing them: a live Q&A room where people write risks and upvote each other's ranks the most widely shared worry first (the live-qa skill)
- Revisit the pre-mortem 2-3 weeks before launch to verify mitigations are on track
Further Reading
Tips for Pre Mortem
- • Start a fresh session after installing so your agent picks up the new skill.
- • It is part of a pack with 40 skills. Install only the ones you need with --skill to keep triggers precise.
- • If two skills overlap, mention the one you want by name.
Questions about Pre Mortem
What does the Pre Mortem skill do?
Run a pre-mortem risk analysis on a PRD or launch plan. Categorizes risks as Tigers (real problems), Paper Tigers (overblown concerns), and Elephants (unspoken worries), then classifies as launch-blocking, fast-follow, or track. Use when preparing for launch, stress-testing a product plan, or identifying what could go wrong.
How do I install Pre Mortem?
Run "npx skills add phuryn/pm-skills --skill pre-mortem" in your project. The skills CLI installs it for Claude Code, Cursor, Codex and 70+ other agents. In Claude on the web, upload the skill folder as a ZIP under Customize > Skills.
Does Pre Mortem work in Cursor and Codex?
Yes. Pre Mortem uses the open SKILL.md format, so it works in Claude Code, Claude, Cursor, OpenAI Codex, Gemini CLI, GitHub Copilot and other agents that support agent skills.
Is Pre Mortem free?
Pre Mortem is open source on GitHub under the MIT license. It is free to install; check the license before commercial use.
Who made Pre Mortem?
Pre Mortem is published by phuryn in the phuryn/pm-skills repository, together with 39 other skills.


