What problem does it solve? UI code often ships with accessibility violations, poor Core Web Vitals, and inconsistent visual design that manual review misses. This Skill provides a structured audit framework covering WCAG 3.0/APCA contrast, Core Web Vitals targets, energy efficiency, and interaction quality so reviews are consistent and thorough. ## Core Features & Use Cases - Accessibility Audits: Checks APCA contrast ratios, keyboard focus states, touch target sizes (48px minimum), and reduced-motion support. - Performance Review: Evaluates LCP, INP, and CLS against modern targets and flags issues like missing fetchpriority or layout shifts. - Visual Quality Assessment: Flags arbitrary spacing, non-fluid typography, flat shadows, and overused design clichés. - Use Case: Before shipping a new landing page, ask for a UI review and receive a structured report with blockers, warnings, and concrete fixes organized by category. ## Quick Start Review my UI code in the current page component against web design best practices and list all blockers and warnings.