About

UI Skillbook is a curated field guide of reusable UI skills, rules, patterns, and agent instructions for building better interfaces. It's built for developers browsing manually, AI coding agents consuming structured skills, and designers looking for implementation guidance.

The question it answers is: “I'm building this UI. What skill should my agent know before touching the code?” Not: here are five thousand random prompts.

Curation

Every published skill has a concrete purpose, gives a usable instruction, doesn't duplicate another skill already in the book, preserves attribution, links its source, and states its license. Skills that don't meet that bar don't get published.

Open source content

Skill content is stored as plain markdown with a predictable schema — see any skill's “View raw” link. GitHub is the source of truth; the site indexes it at build time.

CLI and MCP

npx uiskillbook is a thin client over the same catalog this site serves — start, categories, list, and get <slug>. The MCP server at uiskillbook.com/mcp exposes the same catalog as list_skills and get_skill tools for agents that speak Model Context Protocol directly. See any agent page for setup.