Developer Tools & Repos Agent Skills

When to activate: iOS/macOS accessibility, VoiceOver, accessibilityLabel, accessibilityHint, Dynamic Type, high contrast, SwiftUI…

When to activate: iOS/macOS app architecture, MVVM, TCA, Clean Architecture, dependency injection, modular design in Swift apps

Use whenever designing, building, reviewing, or refactoring the UI of a Swift/SwiftUI (or UIKit) view for iOS, iPadOS, macOS, watchOS…

Implement, review, or improve data visualizations using Swift Charts.

Use when working with Codable protocol, JSON encoding/decoding, CodingKeys customization, enum serialization, date strategies, custom…

Streamlines iOS application development by implementing the Composable Architecture pattern for robust state management and modular design.

Builds iOS/macOS/watchOS/tvOS applications, implements SwiftUI views and state management, designs protocol-oriented architectures…

Use for implementing a non-trivial Swift 6.3 feature, bug fix, or refactor.

When to activate: Swift generics, type constraints, where clauses, generic algorithms, type erasure, conditional conformance

When to activate: Swift/Objective-C interop, @objc, bridging headers, C interop, Swift/C++ interop, NS prefixed types

When to activate: Swift Macros, @attached, freestanding macros, #stringify, macro expansion, SE-0382, SE-0389

Use when Swift code owns a unique resource, has `~Copyable`/`borrowing`/`consuming` diagnostics, or needs an ownership-aware API.

When to activate: Swift Package Manager, Package.swift, dependencies, targets, products, local packages, version resolution

Use when the task claims a latency, throughput, allocation, memory, startup, compilation, or energy improvement, or when optimizing hot…

When to activate: Swift performance optimization, value types, COW, ARC, Instruments profiling, memory layout, compile-time optimization

Use when protocol-oriented programming in Swift including protocol extensions, default implementations, protocol composition, associated…

When to activate: Swift protocols, protocol extensions, associated types, protocol composition, existentials, primary associated types…

Use for an adversarial review of a Swift diff or pull request.

When to activate: Keychain, certificate pinning, encryption, biometrics, secure storage, App Transport Security in Swift

Reviews Swift Testing code for proper use of #expect/#require, parameterized tests, async testing, and organization.

Use when Swift code has copying, mutation, identity, copy-on-write, large aggregates, or a struct-versus-class decision.