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Set up iOS TestFlight delivery via GitHub Actions—build, sign, upload—with secret hygiene and no auto-push. Triggers: "TestFlight", "iOS CI", "Fastlane GitHub Actions", "beta release", "App Store Connect upload".
SQLCipher — transparent AES-256 encryption for SQLite databases. Drop-in SQLite replacement used by mobile wallets, password managers, and offline-first apps storing sensitive data. Covers key derivation (PBKDF2), key rotation, performance tuning, integration in Rust (rusqlite + bundled-sqlcipher...
Dart integration. Manage data, records, and automate workflows. Use when the user wants to interact with Dart data.
AttributedString patterns for rich text formatting, alignment, selection, and SwiftUI integration. Use when working with styled text, text editing, or AttributedString APIs.
Generates structured logging infrastructure using os.log/Logger to replace print() statements. Use when user wants to add proper logging, replace print statements, or set up app logging.
Generates a "What's New" / changelog screen shown after app updates with version tracking, feature highlights, and one-time display per version. Use when user wants release notes UI, update notifications, or feature announcements.
SwiftData class inheritance patterns for hierarchical models with type-based querying, polymorphic relationships, and when to choose inheritance vs enums. Use when designing SwiftData model hierarchies.
Generates detailed implementation guide with pseudo-code and step-by-step development instructions. Creates IMPLEMENTATION_GUIDE.md from PRD, Architecture, and UX specs. Use when creating development roadmap.
Swift 6.2 concurrency updates including default MainActor inference, @concurrent for background work, isolated conformances, and approachable concurrency migration. Use when adopting Swift 6.2 concurrency features or fixing data-race errors.
Set up SwiftUI visual regression testing with swift-snapshot-testing. Generates snapshot test boilerplate and CI configuration. Use for UI regression prevention.
Vision-driven Android device automation using Midscene. Operates entirely from screenshots — no DOM or accessibility labels required. Can interact with all visible elements on screen regardless of technology stack. Control Android devices with natural language commands via ADB. Perform taps, swip...
Vision-driven iOS device automation using Midscene CLI. Operates entirely from screenshots — no DOM or accessibility labels required. Can interact with all visible elements on screen regardless of technology stack. Control iOS devices with natural language commands via WebDriverAgent. Triggers: ...
Expo Networking workflow skill. Use this skill when the user needs implementing or debugging ANY network request, API call, or data fetching. Covers fetch API, React Query, SWR, error handling, caching, offline support, and Expo Router data loaders (useLoaderData) and the operator should preserve...
Use when app drains battery, device gets hot, users report energy issues, or auditing power consumption - systematic Power Profiler diagnosis, subsystem identification (CPU/GPU/Network/Location/Display), anti-pattern fixes for iOS/iPadOS
Use for Core Location implementation patterns - authorization strategy, monitoring strategy, accuracy selection, background location
Use when implementing widgets, Live Activities, Control Center controls, or app extensions - comprehensive API reference for WidgetKit, ActivityKit, App Groups, and extension lifecycle for iOS 14+
Use when encrypting data, signing payloads, verifying signatures, generating keys, using Secure Enclave, migrating from CommonCrypto, or adopting quantum-secure cryptography. Covers CryptoKit design philosophy, AES-GCM, ECDSA, ECDH, Secure Enclave keys, HPKE, ML-KEM, ML-DSA, and cross-platform in...
TDD and testing skills for iOS/macOS apps. Covers characterization tests, TDD workflows, test contracts, snapshot tests, and test infrastructure. Use for test-driven development, adding tests to existing code, or building test infrastructure.
Use when implementing widgets, Live Activities, or Control Center controls - enforces correct patterns for timeline management, data sharing, and extension lifecycle to prevent common crashes and memory issues
Use when SecItem calls fail — errSecDuplicateItem from unexpected uniqueness, errSecItemNotFound despite item existing, errSecInteractionNotAllowed in background, keychain items disappearing after app update, access group entitlement errors, or Mac keychain shim issues. Covers systematic error di...
Use when storing credentials, tokens, or secrets securely, debugging SecItem errors (errSecDuplicateItem, errSecItemNotFound, errSecInteractionNotAllowed), managing keychain access groups, or choosing accessibility classes. Covers SecItem API mental model, uniqueness constraints, data protection,...
MapKit troubleshooting — annotations not appearing, region jumping, clustering not working, search failures, overlay rendering issues, user location problems
Use when implementing Network.framework connections, debugging connection failures, migrating from sockets/URLSession streams, or adopting structured concurrency networking patterns - prevents deprecated API usage, reachability anti-patterns, and thread-safety violations with iOS 12-26+ APIs
Reference — Comprehensive Network.framework guide covering NetworkConnection (iOS 26+), NWConnection (iOS 12-25), TLV framing, Coder protocol, NetworkListener, NetworkBrowser, Wi-Fi Aware discovery, and migration strategies
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