app▌

This comprehensive skill provides complete ASO capabilities for successfully launching and optimizing mobile applications on the Apple App Store and Google Play Store.

Provides expertise in building modern Windows desktop applications using WinUI 3, WPF, and Windows App SDK. Specializes in XAML-based UI development, MVVM architecture, native Windows integration, and modern packaging with MSIX.

Create robust cross-platform mobile applications using React Native with modern development patterns including navigation, state management, API integration, and native module handling.

Comprehensive patterns for Next.js 14+ App Router, Server Components, and modern full-stack React development. \n \n Covers rendering modes (Server Components, Client Components, static, dynamic, streaming), file conventions, and core architectural patterns with practical TypeScript examples \n Includes eight key patterns: Server Components with data fetching, Client Components, Server Actions, parallel routes, intercepting routes for modals, streaming with Suspense, Route Handlers, and metadata

Production-ready patterns for RAG pipelines, agent architectures, prompt management, and LLMOps monitoring. \n \n Covers five core RAG strategies: document chunking, embedding selection, retrieval methods (semantic, hybrid, multi-query, compression), and context-aware generation with citations \n Includes four agent patterns: ReAct (reasoning + acting), function calling, plan-and-execute, and multi-agent collaboration with specialized roles \n Provides prompt engineering practices: templating wi

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Guides app advertising: app install campaigns, user acquisition (UA), and in-app promotion. Use when promoting mobile apps (iOS, Android); conversion = install or in-app action, not landing page.

Comprehensive guide for evaluating iOS, macOS, tvOS, watchOS, and visionOS app code against Apple's App Store Review Guidelines. This skill covers EVERY guideline point to identify potential rejection issues before submission.

Comprehensive testing strategies for iOS and Android mobile apps across unit, UI, integration, and performance layers. \n \n Covers unit testing with Jest, component testing with React Testing Library, and UI automation using Detox, Appium, XCTest, and Espresso \n Includes performance testing, regression testing, and integration testing with backend services \n Provides best practices for test isolation, mocking, meaningful naming, and >80% code coverage targets \n Emphasizes testing on real dev

Comprehensive App Store review preparation guide covering rejections, privacy manifests, IAP rules, and compliance checklists. \n \n Covers top rejection reasons (incomplete apps, inaccurate metadata, private API usage) with prevention strategies and real examples of approved vs. rejected content \n Detailed privacy manifest requirements with reason codes, ATT implementation patterns, and cross-reference checks between nutrition labels and actual data collection \n In-App Purchase and StoreKit r