What problem does it solve? AI-generated interfaces often look generic, ignore accessibility requirements, and break on different screen sizes. This Skill enforces production-quality UI engineering practices so components are accessible, responsive, and consistent with the project's design system. ## Core Features & Use Cases - Component Architecture Patterns: Enforces composition over configuration, colocated file structures, and separation of data fetching from presentation in React/TypeScript code. - Accessibility Compliance: Applies WCAG 2.1 AA standards including keyboard navigation, ARIA labels, focus management, and meaningful empty/error states. - Design System Adherence: Prevents the generic "AI aesthetic" (purple gradients, excessive rounding, stock layouts) by enforcing project tokens, spacing scales, and type hierarchies. - Use Case: When asked to build a task management dashboard, the Skill produces a mobile-first responsive grid with skeleton loading states, optimistic updates via React Query, keyboard-accessible controls, and semantic color tokens instead of hardcoded hex values. ## Quick Start Build a responsive, accessible task list component with loading, empty, and error states that follows our design system tokens.