What problem does it solve? Choosing consistent styles, color palettes, typography, and UX patterns for web and mobile interfaces is time-consuming and error-prone, especially when reviewing UI code for accessibility, responsiveness, and visual quality. ## Core Features & Use Cases - Design System Generation: Produces a complete design system (pattern, style, colors, typography, effects) with reasoning rules and anti-patterns for a given product type, with optional persistence to MASTER.md and per-page override files. - Searchable Design Database: Queries 50+ styles, 161 color palettes, 57 font pairings, 161 product types, 99 UX guidelines, and 25 chart types across 10 stacks including React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind, and shadcn/ui. - UI Review Checklists: Provides priority-ranked rule categories covering accessibility, touch targets, performance, animation, forms, navigation, and charts for auditing existing interfaces. - Use Case: When building a fintech dashboard, run the design-system search to get a recommended style, palette, and font pairing, then persist it so every page follows the same rules across sessions. ## Quick Start Ask the AI to generate a design system for your product type, for example: design a landing page for a beauty spa using the ui-ux-pro-max skill.