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Plan Pre-Mortem Challenge

alirezarezvani/claude-skills

Guides you through a structured pre-mortem to surface assumptions, rate their confidence and impact, map vulnerabilities, uncover dependency chains, and test reversibility so that strategic plans survive contact with reality.

Progressive Estimation Toolkit

progressive-estimation

sickn33/antigravity-awesome-skills

Use Progressive Estimation to produce research-backed PERT estimates, confidence bands, and calibration loops for AI-assisted or hybrid human+agent development work during sprint planning, backlog sizing, and release forecasting.

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