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Updated 3mo ago

by MADEVAL

Pre-Mortem-Skill

A structured failure-analysis workflow that assumes your plan already failed and works backward to find every reason why. Based on Gary Klein's premortem method (Harvard Business Review), validated by prospective-hindsight research from Wharton and Cornell

View on GitHub (opens in a new tab)

45 GitHub stars (45)

Steady at 45 stars — no new stars in the 16 days since Sep 30.

  • 1 skill (1 skills found in its SKILL.md files)
  • 11 forks (11 forks)
  • 3mo ago last update (Last updated 3mo ago)

Install

Skills CLI

npx skills add MADEVAL/Pre-Mortem-Skill

Asks which agents to install it for. Add -g to install it for every project.

Claude Code

git clone https://github.com/MADEVAL/Pre-Mortem-Skillcp -r "Pre-Mortem-Skill" ~/.claude/skills/Pre-Mortem-Skill

Copies the premortem skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project).

Plugin

/plugin marketplace add MADEVAL/Pre-Mortem-Skill

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

  • premortem

    Run a premortem on any plan, launch, product, hire, strategy, or decision. Assumes it already failed and works backward to find every reason why. Produces a revised plan with blind spots exposed, likelihood/impact scores on each failure mode, and a concrete committed action. MANDATORY TRIGGERS: 'premortem this', 'premortem my', 'run a premortem', 'what could kill this', 'future-proof this', 'stre…

    Skill.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.