ios-swift-skills

app-intents-widgets

Design, implement, debug, and verify stable App Intents and WidgetKit integrations, including AppIntent, AppEntity, AppEnum, entity queries, AppShortcutsProvider, dependency injection, shared extension data, widget timelines, relevance, controls, Live Activity selection, deep links, handoff, confirmation, and privacy. Use when exposing app actions to Siri or Shortcuts, building configurable or interactive widgets, sharing state with extensions, or choosing the correct system surface for an action. Do not use for ordinary in-app buttons, generic SwiftUI layout, background scheduling without a widget or intent, SiriKit-only legacy work with no migration request, or Live Activity push-server implementation as the sole task.

cross-platform-app-development-skill

Use when one Swift/SwiftUI product intentionally targets two or more of iOS, iPadOS, Mac Catalyst, macOS, watchOS, tvOS, or visionOS and needs shared-domain design, adaptive UI, capability boundaries, navigation, input, scenes, storage, or conditional compilation. Do not use for a single-platform feature or for non-Apple cross-platform frameworks.

ios-accessibility-skill

Use when iOS or iPadOS accessibility design, implementation, review, or testing involves VoiceOver, Voice Control, Switch Control, Full Keyboard Access, Dynamic Type, contrast, motion, focus, media alternatives, or Assistive Access. Do not use for generic visual styling or platform-neutral UI work with no accessibility requirement.

Web & Frontend Listed

ios-animation-graphics-skill

Design, implement, debug, and review accessible Apple-platform animation and graphics with SwiftUI animation, Canvas, TimelineView, matched geometry, phase/keyframe animators, Core Animation, and Lottie. Use for motion design, custom drawing, transitions, particles, animated symbols, UIKit/AppKit bridging, Reduce Motion, and animation performance. Prefer native SwiftUI for app UI; use Core Animation or Lottie only when their capabilities are needed. Do not use this skill for SpriteKit/Metal game engines, video rendering, or image editing unless animation integration is the specific task.

Web & Frontend Listed

iphone-duo-design

Use when designing, adapting, implementing, or auditing an iOS app for iPhone Duo, including resizing, folding, vertical bars, reserved regions, state continuity, multiple scenes, camera behavior, and accessibility. Produce evidence-based readiness findings with SDK gates and fallbacks. Do not use for generic iPhone work without Duo or adaptive-layout requirements, Android foldables, Microsoft Surface Duo, Google Duo, or claims of Apple certification.

memory-leak-diagnosis-skill

Diagnose, explain, and fix Swift and Apple-platform memory leaks, unexpected object retention, deinit failures, heap growth, retain cycles, runaway caches, task and AsyncSequence lifetimes, timer/delegate/closure ownership, jetsam, and ARC issues using Xcode Memory Graph and Instruments Allocations, Leaks, and VM tools. Use when objects do not deallocate, memory rises across repeated workflows, or weak/unowned and capture-list choices are unclear. Do not enable Zombies for leak measurement, call every temporary retention a leak, or use unowned without a proven lifetime invariant.

speechanalyzer-framework-expert

Implement, migrate, debug, and review on-device transcription with Apple SpeechAnalyzer, SpeechTranscriber, DictationTranscriber, AssetInventory, AnalyzerInput, live microphone audio, and audio-file analysis on iOS 26, macOS 26, visionOS 26, and tvOS 26 where supported. Use for SpeechAnalyzer setup, locale assets and reservations, volatile/final results, AttributedString transcripts, audio conversion, permissions, lifecycle, and migration from SFSpeechRecognizer or Whisper-based solutions. Do not invent beta or later-SDK APIs, assume locale/device support, iterate Foundation Progress as an AsyncSequence, or use SpeechAnalyzer on watchOS.

swift-concurrency-migration

Plan, implement, debug, and verify migrations from callback-, delegate-, Dispatch-, or permissive-concurrency Swift code to Swift 6 strict concurrency, including target-specific build settings, approachable concurrency, default actor isolation, @concurrent work, actors, Sendable boundaries, cancellation, and structured tasks. Use for Swift 6 compiler diagnostics, concurrency adoption plans, legacy async bridges, or migration-focused tests in Apple-platform apps and Swift packages. Do not use for general Swift syntax, performance work without a concurrency finding, framework-specific threading rules without a Swift migration, or requests that merely contain an already-correct async function.

swift-modern-architecture-skill

Use when designing new or intentionally modernized SwiftUI app architecture targeting Swift 6 with strict concurrency and iOS/iPadOS 18 or macOS 15, especially Observation ownership, dependency boundaries, SwiftData, structured concurrency, navigation state, and test seams. Do not use for arbitrary Swift questions, older deployment targets, UIKit-only work, or migrations where the existing Core Data, Combine, Dispatch, or XCTest design is not being reconsidered.

swift-performance-optimization-skill

Use when investigating measured Swift or Apple-platform regressions in CPU, memory, launch, scrolling, animation hitches, image processing, energy, networking, or concurrency, or when designing performance tests and Instruments experiments. Do not use for speculative micro-optimization, ordinary refactoring, or a functional bug without performance evidence.

Testing & QA Listed

swift-unit-testing-skill

Design, write, migrate, and review Swift unit and integration tests using Swift Testing by default, with XCTest retained for UI automation, performance metrics, Objective-C interoperability, and legacy suites. Use for @Test, #expect, #require, parameterized tests, async tests, dependency injection, mocks/fakes, test plans, XCTest, XCUITest, TDD, flaky tests, and test architecture. Do not use UI-test polling or XCTest subclasses for ordinary new Swift unit tests, and do not introduce third-party snapshot frameworks unless the user requests one.

Data & Documents Listed

swiftdata-core-data-migrations

Design, implement, diagnose, and test production schema migrations for SwiftData and Core Data, including VersionedSchema snapshots, SchemaMigrationPlan stages, lightweight and custom Core Data mappings, gradual adoption, CloudKit constraints, and forward-recovery planning. Use when a persistent model changes, an existing store must upgrade without data loss, a team is choosing between SwiftData and Core Data for migration requirements, or copied production stores need validation. Do not use for ordinary fetch/query code, transient in-memory model transformations, unrelated file-format migrations, or advice that assumes Core Data should be replaced merely because SwiftData exists.

Show all 13 bundled skills

Web & Frontend Listed

swiftui-programming-skill

Use when work involves SwiftUI view composition, state and Observation ownership, navigation, adaptive layout, toolbars, forms, SF Symbols, accessibility, previews, or SwiftUI-specific performance. Do not use for UIKit/AppKit-only work, general Swift language questions, or architecture and performance work that does not involve SwiftUI.