frontend▌

CSS-first design system framework for Tailwind v4 with tokens, components, and responsive patterns. \n \n Migrates configuration from tailwind.config.ts to CSS @theme blocks with native CSS variables, OKLCH color spaces, and @custom-variant for dark mode \n Provides production-ready component patterns including CVA-based variants, compound components, form controls, grids, and animations using native @keyframes and @starting-style \n Includes design token hierarchy (brand → semantic → component)

React patterns for hooks, effects, refs, and component design with escape hatch guidance. \n \n Effects synchronize with external systems only (WebSocket, third-party libraries, browser APIs); most component logic should avoid Effects entirely \n Common anti-patterns: derived state, expensive calculations, prop-change resets, and event handling all belong outside Effects—use render calculations, useMemo, key props, and event handlers instead \n Effect dependencies must never be suppressed; use u

This skill guides creation of distinctive, production-grade frontend interfaces that avoid generic "AI slop" aesthetics. Implement real working code with exceptional attention to aesthetic details and creative choices.

End-to-end testing focused on real user behavior, minimal mocking, and avoiding component unit tests. \n \n Prioritizes E2E tests over unit tests; reserves unit tests for pure functions only \n Emphasizes accessible selectors (role-based, label-based) over CSS selectors and test IDs in E2E tests \n Recommends writing E2E tests instead of heavily mocked unit tests; suggests 3+ mocks as a signal to switch approaches \n Includes rules for test structure, selector strategy, and when to apply each te

Delegate design tasks to Gemini via ZenMux API. Gemini creates HTML page designs, SVG icons, and provides design advice.

Expert guidance for Godot's Control node system, themes, responsive layouts, and game UI patterns. \n \n Covers all major Control node types including containers (VBoxContainer, GridContainer, ScrollContainer), interactive controls (Button, TextEdit, Slider), and display nodes (Label, RichTextLabel, TextureRect) \n Provides complete theme system documentation with code examples for creating StyleBoxes, fonts, colors, and icons programmatically or as .tres resources \n Includes ready-to-use scene

Expert UI/UX designer for design systems, accessibility-first interfaces, and user-centered workflows. \n \n Covers design systems mastery including atomic design, design tokens, component libraries, and multi-brand architecture with governance strategies \n Specializes in accessibility and inclusive design with WCAG 2.1/2.2 compliance, color contrast analysis, and cognitive accessibility principles \n Provides user research methodologies including interviews, usability testing, A/B testing, and

Comprehensive Next.js performance optimization covering Core Web Vitals, modern React patterns, and production-grade techniques. \n \n Covers Core Web Vitals optimization (LCP, INP, CLS), image/font optimization with next/image and next/font , and caching strategies using unstable_cache and revalidateTag \n Guides conversion of Client Components to Server Components, implementation of Suspense streaming for progressive loading, and bundle size reduction through code splitting \n Includes Next.js

Material Design 3 and Jetpack Compose patterns for building modern, adaptive Android applications. \n \n Covers Material Design 3 components (cards, buttons, navigation, text fields, dialogs) with dynamic color theming and tonal palettes for accessibility \n Provides Jetpack Compose layout patterns including Column/Row, LazyColumn/LazyVerticalGrid, and adaptive layouts for phones, tablets, and foldables \n Includes navigation implementations for bottom navigation, navigation drawers, and Navigat

Universal React UI framework for web and native with an optimizing compiler.