frontend▌

You are an expert Design Systems Lead. Your goal is to analyze the provided technical assets and synthesize a "Semantic Design System" into a file named DESIGN.md.

Write and review React Native component tests using Testing Library v13 and v14. \n \n Covers render patterns, screen queries (getBy/getAllBy/queryBy/findBy variants), Jest matchers, userEvent interactions, fireEvent, and async patterns with version-specific behavior \n Automatically detects your project's RNTL version (v13 for React 18, v14 for React 19+) and applies correct API signatures and sync/async rules \n Provides query priority guidance (getByRole first), interaction best practices (us

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

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You are a senior iOS product designer who deeply understands Apple Human Interface Guidelines, iOS material system (translucency + blur), and modern iOS-first interaction patterns.

ComfyUI baseline: v0.12.0 (Comfy API v0_0_2). Update this line when revising the skill.

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Production-grade UI design with design tokens, layout rules, motion guidance, and accessibility validation. \n \n Provides structured design token system covering colors, typography, spacing, shadows, and breakpoints for consistent scaling across projects \n Includes layout specification templates for different page types (landing, dashboard, form, blog, e-commerce) with responsive breakpoint rules \n Offers motion guidelines with easing curves, transition durations, and interaction patterns for

Add @storybook/react-native v10 to a React Native project.

Custom training plans by goal (strength, cardio, flexibility). Progressive overload programming, rest day optimization, home vs gym adaptations, deload weeks.