ryangriffinau

P Pre Mortem — Development skill for Claude Code

Development community

Run a pre-mortem — assume it failed, work backwards to the causes.

How to install P Pre Mortem

Installs to ~/.claude/skills/ryangriffinau-skills-p-pre-mortem/SKILL.md

Terminal

mkdir -p ~/.claude/skills/ryangriffinau-skills-p-pre-mortem && curl -fsSL https://raw.githubusercontent.com/ryangriffinau/skills/HEAD/prompts/p-pre-mortem.md -o ~/.claude/skills/ryangriffinau-skills-p-pre-mortem/SKILL.md

Restart Claude Code, or start a new session, for it to be picked up.

What P Pre Mortem does

description: Run a pre-mortem — assume it failed, work backwards to the causes argument-hint:

Assume it's 6 months out and this has clearly failed: $ARGUMENTS

Work backwards from the failure:

What were the 3–5 most likely causes of death, ranked by probability?
Which of these are we underweighting right now because they're uncomfortable?
For the top two, what's the cheapest early signal that would warn us, and the single change we could make to