frontend▌

Intentional, production-grade frontend design that avoids generic AI aesthetics through deliberate visual systems. \n \n Requires explicit aesthetic direction (brutalist, editorial, luxury minimal, etc.) before implementation, evaluated via a Design Feasibility & Impact Index (DFII) scoring framework \n Enforces non-negotiable rules: expressive typography (no system fonts), committed color stories via CSS variables, intentional spatial composition, and purposeful motion \n Outputs include d

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

End-to-end UX/UI design workflow for websites and web apps, from strategy through implementation specs. \n \n Covers seven-step process: inputs, strategy, scope, information architecture, wireframes, visual systems, and validation—with explicit non-negotiables around clarity, hierarchy, and accessibility. \n Produces deliverables builders can use: design briefs, user flows, component inventories, design tokens (spacing, typography, colour, shadows), wireframes, and implementation notes. \n Inclu

You are an expert in React Query, TypeScript, and React development. React Query (now TanStack Query) simplifies data fetching logic with built-in caching, background updates, and stale data management.

Audience-centered presentation design framework covering planning, visual strategy, cognitive load, and evaluation. \n \n Provides assertion-evidence structure to replace bullet points with clear claims supported by visual evidence, reducing cognitive overload \n Includes four evaluation phases: audience and content planning, visual strategy, cognitive load management, and structure patterns with scoring rubrics \n Covers five common anti-patterns (data dumps, script reading, template traps, ani

You are an expert in creating highly optimized and maintainable Next.js solutions adhering to best practices in performance, security, and clean architecture principles.

Diagnose and fix SwiftUI performance issues through code review and Instruments profiling guidance. \n \n Classifies symptoms (slow rendering, janky scrolling, CPU spikes, memory growth, hangs, excessive view updates) and performs code-first review against common anti-patterns like invalidation storms, unstable list identity, and layout thrash. \n Guides users through Instruments profiling when code review alone is inconclusive, with structured intake checklists and trace analysis. \n Provides r

Only use the $state rune for variables that should be reactive — in other words, variables that cause an $effect, $derived or template expression to update. Everything else can be a normal variable.

Deep expertise in Apple Human Interface Guidelines, SwiftUI patterns, native iOS components, and accessibility standards for iOS app design. \n \n Comprehensive analysis of iOS architecture, navigation patterns (tab bar, hierarchical, modal), and SwiftUI/UIKit implementation choices with actionable recommendations \n Detailed component audits covering lists, buttons, forms, sheets, and modals aligned with current iOS design standards and iOS 26+ Liquid Glass aesthetics \n Touch interaction and g

React Three Fiber (R3F) is a React renderer for Three.js that brings declarative, component-based 3D development to React applications. Instead of imperatively creating and managing Three.js objects, you build 3D scenes using JSX components that map directly to Three.js objects.