Design principles
Skill HermeticOrmus/LibreUIUX-Claude-Code/plugins/design-mastery/skills/design-principles
Complete UI/UX system for Claude Code — 67 specialized agents, design vocabulary, tested promptsFrom the repository description
npx -y skills add HermeticOrmus/LibreUIUX-Claude-Code --skill design-principlesAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.