React Native cross-platform mobile apps with navigation, state management, native features. Use for iOS/Android development, mobile prototyping, code sharing, or encountering bridge errors, platform-specific bugs, performance bottlenecks.
Build modern mobile applications with React Native, Flutter, Swift/SwiftUI, and Kotlin/Jetpack Compose. Covers mobile-first design principles, performance optimization (battery, memory, network), offline-first architecture, platform-specific guidelines (iOS HIG, Material Design), testing strategies, security best practices, accessibility, app store deployment, and mobile development mindset. Use when building mobile apps, implementing mobile UX patterns, optimizing for mobile constraints, or making native vs cross-platform decisions.
Implement Next.js App Router patterns including Server Components, Client Components, layouts, route organization, and data fetching. Use when building with App Router, organizing routes, or implementing modern Next.js patterns. Trigger words include "App Router", "Server Component", "Client Component", "layout", "app directory".
Strategies for developing apps that work across multiple Apple platforms, including adaptive layouts and multi-view implementations.
Creating animations and graphics using SwiftUI Canvas, Core Animation, and Lottie integration for engaging iOS app experiences.
Complete iOS/macOS/watchOS/tvOS development using native xcodebuild, xcrun simctl, and xcrun devicectl commands. Build, run, test apps on simulators and physical devices. UI automation, screenshots, video capture, log capture, Swift Package Manager. No MCP server required.
Expertise in SwiftUI for building declarative user interfaces, including SF Symbols integration and best practices.
Best practices for implementing accessibility features in iOS apps, including VoiceOver support, Dynamic Type, and Human Interface Guidelines compliance.
Install and configure Swift programming language on Debian Linux for server-side development. Use when building Swift applications on Linux or setting up a Swift development environment.
Guide for building iOS apps using Swift 6, iOS 18+, SwiftUI, SwiftData, and modern concurrency patterns. Use when writing Swift/iOS code, designing app architecture, or modernizing legacy patterns. Prevents outdated patterns like Core Data, ObservableObject, DispatchQueue, and NavigationView.
Implement real-time streaming UI patterns for AI chat applications. Use when adding response lifecycle handlers, progress indicators, client effects, or thread state synchronization. Covers onResponseStart/End, onEffect, ProgressUpdateEvent, and client tools. NOT when building basic chat without real-time feedback.
Flutter/Dart best practices, Riverpod state management ve performance optimization.
Creates complete single-file HTML/CSS/JS web apps with localStorage persistence, ADHD-optimized UI (60px+ buttons), dark mode, and offline functionality. Use when user says "create app", "build tool", "make dashboard", or requests any browser-based interface.
Write and review high-performance React Native animations and 2D graphics using react-native-reanimated (v4+) and @shopify/react-native-skia (Canvas scenes, runtime effects/shaders). Use for: gesture-driven interactions, spring/timing transitions, layout/mount animations, Reanimated CSS transitions/animations, Skia drawings, animated shader uniforms, path/vector interpolation, dev-mode tuning panels (sliders), and diagnosing animation jank (JS thread stalls, excessive re-renders, per-frame allocations).
Work with Script Kit's unified notification system supporting toasts, HUDs, banners, and system notifications. Use when implementing user feedback, status updates, progress indicators, or any transient messages. Triggers: "notification", "toast", "HUD", "alert", "feedback", "progress notification", "show message".
macOS Cocoa and Objective-C interop for Rust applications
Smart pointer patterns for Rust (Arc, Rc, RefCell, Cell, OnceLock, Mutex)
macOS Core Graphics and Core Foundation Rust bindings for display management, keyboard simulation, and event handling
Community UI component library for GPUI applications
macOS Accessibility APIs for automation and text selection
