Audit and fix layouts at every breakpoint; desktop is not a wide phone. Use when "responsive audit", desktop looks stretched, there is no max-width, or 1440 looks like a phone. Touch-first build → design-mobile-first.
Install
npx skills add kensaurus/skills --skill audit-responsivenpx skills add kensaurus/skills --skill audit-responsive -a claude-code -gnpx skills add kensaurus/skills --skill audit-responsive -a codex -ggemini skills install https://github.com/kensaurus/skills.git --path skills/audit-responsivegh skill install kensaurus/skills audit-responsivegit clone --depth 1 https://github.com/kensaurus/skills /tmp/kensaurus__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/kensaurus__skills/skills/audit-responsive ~/.claude/skills/audit-responsive # Claude Code
cp -R /tmp/kensaurus__skills/skills/audit-responsive ~/.agents/skills/audit-responsive # Codex, Cursor, Gemini CLI, Copilot, OpenCode