Use this skill when designing UI/UX, creating dashboards, building SaaS interfaces, or reviewing frontend design. Provides S-tier design checklist inspired by Stripe, Airbnb, and Linear.
Install
npx skills add nmhjklnm/suiying-marketplace --skill design-principlesnpx skills add nmhjklnm/suiying-marketplace --skill design-principles -a claude-code -gnpx skills add nmhjklnm/suiying-marketplace --skill design-principles -a codex -ggemini skills install https://github.com/nmhjklnm/suiying-marketplace.git --path skills/design-principlesgh skill install nmhjklnm/suiying-marketplace design-principlesgit clone --depth 1 https://github.com/nmhjklnm/suiying-marketplace /tmp/nmhjklnm__suiying-marketplace
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/nmhjklnm__suiying-marketplace/skills/design-principles ~/.claude/skills/design-principles # Claude Code
cp -R /tmp/nmhjklnm__suiying-marketplace/skills/design-principles ~/.agents/skills/design-principles # Codex, Cursor, Gemini CLI, Copilot, OpenCode