Clean Impeccable frontend design skill. Use when the user wants to design, redesign, critique, audit, polish, harden, optimize, adapt, clarify, colorize, animate, or otherwise improve a frontend interface. Covers websites, landing pages, dashboards, product UI, app shells, components, forms, onboarding, empty states, accessibility, responsive behavior, visual hierarchy, UX copy, motion, design systems, anti-pattern detection, and AI-looking UI cleanup. This clean Companion edition is agent-only: no CLI, no hooks, no live mode, no install commands, no external commercial workflow.