SkillUI: open-source CLI reverse-engineers any site's design system for Claude Code
tom_doerr · x · 2026-09-11
SkillUI, an open-source CLI (1.8k GitHub stars), crawls any website, git repo, or local codebase and extracts its complete design system — colors, typography, spacing, animations, components, screenshots — packaged into a folder Claude Code automatically reads.
- Pure static analysis: no AI, no API keys; "ultra mode" uses Playwright for full visual extraction
- Workflow: npm install -g skillui, run skillui --url https://notion.so, then launch Claude Code in the output folder and ask it to build UI matching that system
- The author one-shotted Notion's landing page with a single prompt
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