What problem does it solve? Building consistent, accessible, and responsive interfaces requires juggling personas, information architecture, design tokens, component patterns, and WCAG compliance at once. This Skill provides a structured workflow from persona definition through implementation and self-review so UI work stays usable and consistent. ## Core Features & Use Cases - Persona-driven design workflow: Define personas, generate Mermaid sitemaps, and produce style guides before writing any component code. - Design tokens and component patterns: Apply default color, typography, and spacing tokens plus ready-made Tailwind patterns for buttons, forms, cards, modals, tables, and loading states. - Severity-ranked design reviews: Audit UI against a checklist covering WCAG 2.1 AA accessibility, responsive behavior at 375px, design system consistency, and performance, with Critical/Warning/Suggestion findings. - Use Case: When asked to build a new dashboard screen, the Skill walks through persona definition, sitemap validation (3-click rule), token-based Tailwind implementation with React 18 and Next.js App Router, then runs the review checklist before delivery. ## Quick Start Ask the agent to design and implement a responsive settings page using Tailwind CSS and React, following the persona-to-review workflow.