First public release: 59 patterns across 4 sections (Sidekick/mobile app, Control Room/web app, Storefront/website, Choreography/cross-screen flows), each tiered Fundamental/Common/Conditional and checked against scripts/validate.py in CI.
- Progressive-disclosure architecture: SKILL.md router -> section indexes -> one reference file per pattern
- Every citation (WCAG, Apple HIG/App Store Guidelines, Material Design, MDN, GOV.UK Design System) checked against something real before merging
- MIT licensed, open for contributions (see CONTRIBUTING.md)