Coverage + validation loop, Brad Frost / Dominic Nguyen framework
Pattern defined by Brad Frost (bradfrost.com) and Dominic Nguyen (dominicnguyen.com): AI-readiness double-loop for DS. Coverage = your DS explicitly exposes each component with its stories, states, constraints in structured data. Validation = each AI generation passes A11y tests (axe-core), interaction tests (Storybook/Playwright), visual regression (Chromatic/Percy/Applitools) AND documented human sign-off. Not one without the other.