The Human Skill Tree

A map of 3,010 human skills across 19 domains, from a newborn's first look at a face to a triple axel. Each skill unlocks the skills nested under it. Tick off the ones you have and watch your own tree grow. Your progress is saved in your browser. Built over several sessions with Claude Code: one outline file per domain, a Python build script that checks them, and a single self-contained HTML page made from the outlines.