A universal premortem skill for high-stakes decisions — installable across Claude Code, Codex CLI, and Cursor with a single command.
The premortem method (Gary Klein, validated by Wharton/Cornell prospective-hindsight research) inverts standard risk thinking: instead of asking "what could go wrong," it forces the analyst to assume the decision already failed and reconstruct causes of death by working backward.
curl -fsSL https://raw.githubusercontent.com/procoders/premortem-skill/main/install.sh | bashThe installer detects which AI tools are present (Claude Code, Codex CLI, Cursor) and installs into each. See docs/INSTALL.md for manual install instructions and the Claude Code marketplace alternative.
In Claude Code:
/premortem
In any harness, natural language also triggers the skill — in Russian or English:
премортем этого запускачто может пойти не так с Xstress-test this planrun a premortem on the pricing change
See docs/USAGE.md for worked examples.
Four decision domains, with one reference file loaded per run based on context:
- Business — launches, pricing, hiring, marketing
- Strategy — pivots, M&A, fundraising, market entry
- Technical — architecture, migrations, stack choice
- Life — personal decisions, gated by explicit consent (skill refuses for emotional-crisis contexts)
See docs/specs/2026-05-18-premortem-skill-design.md for the full design and docs/ARCHITECTURE.md for the contributor guide.
curl -fsSL https://raw.githubusercontent.com/procoders/premortem-skill/main/uninstall.sh | bashMIT — see LICENSE.