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Found 255 Skills
Select, implement, or migrate between app architecture patterns for Apple platform apps. Use when choosing between MV (Model-View with @Observable), MVVM, MVI, TCA (The Composable Architecture), Clean Architecture, VIPER, or Coordinator patterns; when evaluating architecture fit for a feature's complexity; when migrating from one pattern to another; or when reviewing whether an app's current architecture is appropriate. Scoped to Apple-platform patterns using Swift 6.3, SwiftUI, and UIKit.
Develops iOS applications with XcodeGen, SwiftUI, and SPM. Triggers on XcodeGen project.yml configuration, SPM dependency issues, device deployment problems, code signing errors, camera/AVFoundation debugging, iOS version compatibility, or "Library not loaded @rpath" framework errors. Use when building iOS apps, fixing Xcode build failures, or deploying to real devices.
Use when building iOS apps with UIKit, implementing MVVM/MVC/Coordinator patterns, or integrating UIKit with SwiftUI.
Expert lifecycle decisions for iOS/tvOS: when SwiftUI lifecycle vs SceneDelegate, background task strategies, state restoration trade-offs, and launch optimization. Use when managing app state transitions, handling background work, or debugging lifecycle issues. Trigger keywords: lifecycle, scenePhase, SceneDelegate, AppDelegate, background task, state restoration, launch time, didFinishLaunching, applicationWillTerminate, sceneDidBecomeActive
Design native macOS apps following Apple's Human Interface Guidelines and Liquid Glass design system. Use when building SwiftUI/AppKit macOS apps, validating designs, or implementing macOS-specific patterns.
SwiftUI NavigationStack, NavigationSplitView, and navigation transition patterns for iOS 16-18+. Covers @Observable coordinators, zoom transitions, hero animations, sheet vs push decisions, multi-step flows, anti-patterns, performance, accessibility, deep linking, and state restoration. This skill should be used when designing navigation hierarchies, implementing screen transitions, choosing between sheet and push, orchestrating multi-step flows, using @Observable with @Environment and @Bindable, or reviewing navigation code for anti-patterns.
Opinionated SwiftUI architecture enforcement for iOS 17+ apps using Clean MVVM + Coordinator pattern. Enforces Airbnb's @Equatable diffing, @Observable state, NavigationStack coordinators, and Clean Architecture layer boundaries. This skill should be used when writing, reviewing, or refactoring SwiftUI code. Triggers on tasks involving SwiftUI views, ViewModels, navigation, state management, dependency injection, or iOS app architecture.
iOS development expert including SwiftUI, UIKit, and Apple frameworks
Elite iOS, macOS, watchOS, tvOS, and visionOS development expertise for Swift, SwiftUI, UIKit, Xcode, and the Apple development ecosystem. Automatically activates when working with .swift files, Xcode projects (.xcodeproj, .xcworkspace), SwiftUI interfaces, Apple platform frameworks (UIKit, Core Data, Combine, WidgetKit, App Intents, etc.), app architecture for Apple platforms, or Apple platform development. Not for cross-platform frameworks (React Native, Flutter) or non-Apple platforms.
Scaffold modern iOS apps and features with Clean Architecture, MVVM, SwiftUI, GRDB, Swift Concurrency, optional Apple Foundation Models integration, and modular local packages. Use when creating a new iOS app, adding a feature/service/model/migration/design system component/package, or enforcing Domain/Data/Presentation separation with feature-local ownership by default and shared modules only for true cross-domain concerns.
Inspect an existing repo and generate OpenEditor onboarding config for it. Use when Codex needs to make a project OpenEditor-compatible by inferring framework or platform from the file tree, creating or updating `.logic-editor.json`, creating `oe-swift.json` for iOS or SwiftUI projects, or explaining which config fields still need manual confirmation.
API reference: MapKit for SwiftUI. Map view, Marker, Annotation, camera positions, map features.