frontend▌

Orchestrates React Native version upgrades with template diffs, dependency resolution, and native platform migration. \n \n Applies canonical rn-diff-purge template diffs to align native iOS and Android configuration with target React Native versions \n Handles package.json dependency updates, CocoaPods and Gradle changes, and breaking API migrations across major and minor version bumps \n Includes Expo SDK upgrade layer for managed Expo projects and post-upgrade verification checklist \n Provid

Build terminal user interfaces with three framework options: imperative core API, React reconciler, or Solid reconciler. \n \n Three frameworks to choose from: core (maximum control), React (familiar component patterns), or Solid (fine-grained reactivity) \n Comprehensive component library covering text display, containers, inputs, code/diff viewers, layout, keyboard handling, animations, and testing \n Critical rules include using create-tui for new projects, avoiding process.exit() , and nesti

A practical framework for managing the fundamental challenge of software engineering: complexity. Apply these principles when designing modules, reviewing APIs, refactoring code, or advising on architecture decisions. The central thesis is that complexity is the root cause of most software problems, and managing it requires deliberate, strategic thinking at every level of design.

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.

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)

Native iOS interface design aligned with Apple's Human Interface Guidelines and platform conventions. \n \n Covers eight core design areas: layout and safe areas, typography with Dynamic Type, semantic colors and Dark Mode, native navigation patterns, system controls, accessibility (VoiceOver, contrast, touch targets), SF Symbols, and standard gestures with haptic feedback \n Includes scoring framework (0-10) for auditing iOS interface adherence, common mistakes table, and quick diagnostic check

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

Production-ready setup for Tailwind CSS v4 with shadcn/ui, dark mode, and CSS variable architecture. \n \n Four-step architecture: define CSS variables at root level with hsl() wrapper, map to Tailwind utilities via @theme inline , apply base styles, and enable automatic dark mode switching \n Vite plugin-based configuration (no PostCSS or tailwind.config.ts needed); requires @tailwindcss/vite and empty \"config\" in components.json \n Semantic color tokens for destructive, success, warning, and

Skills for implementing Apple's modern design systems across platforms.

You are an expert in TypeScript, Node.js, Vite, Vue.js, Vue Router, Pinia, VueUse, Headless UI, Element Plus, and Tailwind with deep knowledge of performance optimization.