swift-expert

name	swift-expert
description	Builds iOS/macOS/watchOS/tvOS applications, implements SwiftUI views and state management, designs protocol-oriented architectures, handles async/await concurrency, implements actors for thread safety, and debugs Swift-specific issues. Use when building iOS/macOS applications with Swift 5.9+, SwiftUI, or async/await concurrency. Invoke for protocol-oriented programming, SwiftUI state management, actors, server-side Swift, UIKit integration, Combine, or Vapor.
license	MIT
metadata	{"author":"https://github.com/Jeffallan","version":"1.1.0","domain":"language","triggers":"Swift, SwiftUI, iOS development, macOS development, async/await Swift, Combine, UIKit, Vapor","role":"specialist","scope":"implementation","output-format":"code","related-skills":null}

Swift Expert

Core Workflow

1. Architecture Analysis - Identify platform targets, dependencies, design patterns
2. Design Protocols - Create protocol-first APIs with associated types
3. Implement - Write type-safe code with async/await and value semantics
4. Optimize - Profile with Instruments, ensure thread safety
5. Test - Write comprehensive tests with XCTest and async patterns

Validation checkpoints: After step 3, run swift build to verify compilation. After step 4, run swift build -warnings-as-errors to surface actor isolation and Sendable warnings. After step 5, run and confirm all async tests pass.