Skill UI

Automates end-to-end mobile app testing on iOS and Android via Appium, Detox, XCUITest, or Espresso, including page objects and device/simulator setup.

Automates end-to-end mobile app testing on iOS and Android via Appium, Detox, XCUITest, or Espresso, including page objects and device/simulator setup.

This skill provides comprehensive guidance on deploying Expo applications to production across multiple platforms, including iOS, Android, and Web, utilizing Expo Application Services (EAS). It covers the full lifecycle, from building and configuring profiles (eas.json) to submitting builds to App Store Connect, Google Play, and TestFlight. Furthermore, it details deploying web bundles, managing app versions, optimizing App Store metadata, and implementing automated CI/CD workflows.

Mastery of modern mobile development across multiple platforms, including React Native, Flutter, and native iOS/Android. Expertise covers the entire lifecycle, specializing in architectural patterns (Clean, MVVM), performance optimization, offline-first data synchronization (GraphQL, SQLite), advanced DevOps practices (CI/CD, Fastlane), and App Store Optimization (ASO). Ideal for building robust, scalable, and highly performant cross-platform applications.

This guide provides comprehensive principles for developing games specifically for mobile platforms. It covers essential technical constraints and best practices, including optimizing for touch input, managing battery life and thermal performance, adhering to platform-specific requirements (iOS/Android), and selecting appropriate monetization models. Use this when designing highly optimized, user-centric mobile gaming experiences.

This expert specializes in secure mobile development practices, covering areas like input validation, WebView security, secure data storage (KeyStore/Keychain), and advanced network security (Certificate Pinning). Use this skill to write secure, resilient mobile code for both iOS and Android, mitigating platform-specific vulnerabilities and ensuring sensitive data protection.

This comprehensive workflow guides the process of building and deploying new features that must maintain consistent functionality and design across multiple operating systems (web, mobile, and desktop). It strictly follows an API-first architecture, starting with defining shared API contracts (OpenAPI/GraphQL) and a unified design system. The process then guides parallel implementation across specialized stacks like React/Next.js, SwiftUI, and Jetpack Compose, ensuring high code consistency and faster time-to-market.

Builds and optimizes production-ready React Native and Expo mobile apps, covering navigation hierarchies, native module setup, FlatList performance tuning, SafeArea/keyboard handling, and multi-platform testing to ensure smooth iOS and Android releases.

Execute end-to-end automated testing for mobile applications across both iOS and Android platforms. This skill simulates real user interactions, covering UI flows, gestures (swipe, pinch), form validation, and platform-specific behaviors (e.g., Safe Area handling, Android back button logic). It supports industry-standard frameworks like Appium, Detox, and Maestro, making it essential for ensuring cross-platform quality assurance and robust CI/CD pipelines.

A comprehensive, step-by-step guide detailing the process of upgrading Expo SDK versions in a React Native project. This resource covers dependency resolution, handling breaking changes (such as React 19 or New Architecture migrations), clearing native caches (iOS/Android), and updating deprecated packages to ensure a smooth and stable migration process.

A comprehensive guide detailing best practices for building beautiful, high-performance, and native-feeling applications using Expo Router. Covers fundamentals, advanced styling, component patterns, complex navigation, animations (Reanimated), native controls, and ensuring platform responsiveness for both iOS and Android.

A comprehensive setup guide for integrating Tailwind CSS v4 into Expo/React Native projects. This skill utilizes react-native-css and NativeWind v5 to achieve universal, utility-first styling across iOS, Android, and Web platforms, ensuring modern, consistent UI development.