Developer Tools & Repos Agent Skills for HTTP / API

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.

Configures and enforces SwiftLint in Swift projects using build tool plugins, run scripts, and CI.

Diagnose SwiftPM graph overhead across dependencies, plugins, module variants, branch pins, macros, binary targets, and slow CI or local…