Write, review, and modernize UIKit code for legacy-to-modern iOS apps (iOS 12+ through latest). Use when building UIKit screens, refactoring massive view controllers, optimizing table/collection rendering, improving animation/layout/state patterns, applying modern APIs with iOS 12-safe fallbacks, and planning incremental UIKit↔SwiftUI migration with measurable quality gates.
Comprehensive code review workflow for TypeScript, JavaScript, Python, Swift, Kotlin, and Go. Use when reviewing pull requests or local diffs, providing code feedback, identifying bugs/performance issues, checking best practices, security risks, and generating structured review checklists/reports. Includes scripts to analyze git diffs, scan for common issues, and output a review report.
Professional iOS development competency coverage across Swift language mastery, SwiftUI + UIKit UI development, architecture/patterns (MVVM, Coordinator, Clean), networking/data/persistence, platform capabilities (lifecycle, background, device features), accessibility, testing/debugging/performance, and CI/CD + App Store distribution. Use when implementing or reviewing iOS code for best-practice patterns, concurrency/thread-safety, memory/ARC issues, architecture decisions, data layers, testing strategy, or release readiness.
Master Apple-standard iOS UI design and implementation across SwiftUI and UIKit. Use when designing or reviewing iOS screens to follow Human Interface Guidelines (HIG), build adaptive layouts, choose navigation patterns (NavigationStack/TabView/sheets or UINavigationController/UITabBarController), integrate SF Symbols/system typography/semantic colors, ensure Dark Mode + high-contrast support, and implement accessibility (VoiceOver, Dynamic Type, touch targets).