Testing conventions for React Native with TypeScript. Use this skill when writing tests, reviewing test code, or setting up test infrastructure. Covers unit tests, integration tests, component tests, test doubles (dummy, stub, spy, mock), builder pattern for fixtures, and the testing pyramid.
Separation of Concerns principle for TypeScript code review and refactoring. Use when detecting mixed responsibilities, business logic in UI components, infrastructure code in domain layer, or tightly coupled modules. Helps improve modularity and maintainability. Related to Clean Architecture layers.
SOLID principles for TypeScript code review and refactoring. Use when reviewing code architecture, detecting design violations, refactoring classes/modules/hooks, or improving code maintainability. Covers SRP, OCP, LSP, ISP, DIP with concrete violation detection and fix patterns.
React Native performance optimization guide. Use when working on performance issues, optimizing renders, improving startup time, debugging memory leaks, optimizing lists/animations, or analyzing bundle size. Covers profiling, memoization, React Compiler, Concurrent React, state patterns, FlatList optimization, Reanimated, native threading, and bundle optimization.
Clean Architecture for React Native (Expo) with TypeScript and Bun. Use this skill when creating features, refactoring code, or reviewing code in React Native projects. Enforces strict separation between Core (domain), Infrastructure (adapters), and UI layers. Implements ports/adapters pattern, Result pattern for errors, and atomic design for components.
React and React Native coding conventions with TypeScript. Use this skill when creating components, writing hooks, or reviewing React/React Native code. Enforces naming conventions, component structure, typing patterns, accessibility, and performance best practices.
Clean Architecture patterns for Swift/SwiftUI iOS projects. Use when working on Swift/SwiftUI projects that follow Clean Architecture with bounded contexts, ports/adapters pattern, and layered separation (domain/UI). Triggers for creating features, use cases, refactoring to bounded contexts, reviewing architecture compliance, or understanding project structure.
Testing conventions for Swift/SwiftUI projects using Clean Architecture. Covers Swift Testing framework for unit/integration tests, XCUITest for UI and E2E tests, manual protocol-based mocking, async testing patterns, and test organization. Use when writing tests, reviewing test code, setting up test infrastructure, or discussing testing strategy in Swift projects.