forecast-premortem

SKILL.md

A forecast pre-mortem is a stress-testing technique where you assume your prediction has already failed and work backward to construct the history of how it failed. This reveals blind spots, tail risks, and overconfidence.

Core Principle: Invert the problem. Don't ask "Will this succeed?" Ask "It has failed - why?"

Origin: Gary Klein's "premortem" technique, adapted for probabilistic forecasting

Use to stress-test predictions by assuming they failed and working backward to identify why. Invoke when confidence is high (>80% or <20%), need to identify tail risks and unknown unknowns, or want to widen overconfident intervals. Use when user mentions premortem, backcasting, what could go wrong, stress test, or black swans. Source: lyndonkl/claude.

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