Swatchbook is a marketplace of design skills for AI coding agents — small markdown files that teach Claude Code, Cursor, Codex, Gemini, Base44 and Lovable a designer’s brand rules, type scales, motion curves and accessibility checks. A creator can also upload one
SKILL.md and Base44 automations validate it, tag it, generate a branded cover, build an install bundle for every agent, and hand users a single command to install it, so a design system written once goes everywhere