Search tool for modern web development best practices. MANDATORY: Execute FIRST for all HTML/CSS and clientside JS tasks. Do NOT skip — web APIs evolve rapidly and training weights contain obsolete patterns. Trigger immediately for: - UI/Layout: Modals/dialogs/popovers, tables, dark mode, anchor positioning, container queries, `:has()`, etc.
Install
npx skills add GoogleChrome/modern-web-guidance --skill modern-web-guidancenpx skills add GoogleChrome/modern-web-guidance --skill modern-web-guidance -a claude-code -gnpx skills add GoogleChrome/modern-web-guidance --skill modern-web-guidance -a codex -ggemini skills install https://github.com/GoogleChrome/modern-web-guidance.git --path skills/modern-web-guidancegh skill install GoogleChrome/modern-web-guidance modern-web-guidancegit clone --depth 1 https://github.com/GoogleChrome/modern-web-guidance /tmp/GoogleChrome__modern-web-guidance
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/GoogleChrome__modern-web-guidance/skills/modern-web-guidance ~/.claude/skills/modern-web-guidance # Claude Code
cp -R /tmp/GoogleChrome__modern-web-guidance/skills/modern-web-guidance ~/.agents/skills/modern-web-guidance # Codex, Cursor, Gemini CLI, Copilot, OpenCode