swift-expert
swift-expert equips you with expert-level guidance for crafting robust iOS and macOS applications using Swift 5.9 and beyond. Leverage modern concurrency features and type-safety principles to accelerate your full-stack development workflow. This skill bridges the gap between foundational Swift knowledge and production-ready app architecture.
swift-expert guides you through building type-safe iOS applications with Swift 5.9+ by leveraging async/await and structured concurrency. You'll learn to design concurrent operations safely using actors for thread safety, implement proper error handling in async contexts, and architect your app layers—from SwiftUI views to networking—around modern concurrency patterns that eliminate callback hell and race conditions.
AI-generated summary based on this skill's SKILL.md
Decision gist · record as of 2026-05-20
swift-expert guides you through building type-safe iOS applications with Swift 5.9+ by leveraging async/await and structured concurrency. You'll learn to design concurrent operations safely using actors for thread safety, implement proper error handling in async contexts, and architect your app layers—from SwiftUI views to networking—around modern concurrency patterns that eliminate callback hell and race conditions.
Use it when
- swift-expert covers SwiftUI state management through proper use of @State, @StateObject, @EnvironmentObject.
- swift-expert explains Swift's async/await syntax as a cleaner alternative to completion handlers and Combine publishers.
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Read SKILL.md below before installing (6 files). Open directory: indexed for reading, not audited.
Install
Jeffallan/claude-skills/swift-expert · repository language: Python
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Frequently asked questions
AI-generated answers based on this skill's SKILL.md and metadata
How do I build iOS apps with Swift using modern concurrency?
swift-expert guides you through building type-safe iOS applications with Swift 5.9+ by leveraging async/await and structured concurrency. You'll learn to design concurrent operations safely using actors for thread safety, implement proper error handling in async contexts, and architect your app layers—from SwiftUI views to networking—around modern concurrency patterns that eliminate callback hell and race conditions.
What are SwiftUI state management best practices?
swift-expert covers SwiftUI state management through proper use of @State, @StateObject, @EnvironmentObject, and the new @Observable macro in Swift 5.9+. You'll understand when to lift state up the view hierarchy, how to design view models that respect SwiftUI's reactivity model, and techniques for managing complex app state without creating memory leaks or unnecessary view redraws.
How does async/await work in Swift and when should I use it?
swift-expert explains Swift's async/await syntax as a cleaner alternative to completion handlers and Combine publishers. You'll learn to write sequential asynchronous code that reads like synchronous logic, handle errors with try/catch in async contexts, combine multiple async operations with task groups, and understand how async/await integrates with actors to prevent data races in concurrent environments.
What is protocol-oriented programming in Swift?
swift-expert teaches protocol-oriented design as a foundational pattern for building flexible, testable APIs. You'll learn to define protocols that express behavior contracts, use protocol extensions for default implementations, leverage associated types and generic constraints for type-safe abstractions, and combine protocols with async/await to create modern, composable Swift interfaces.
How do Swift actors ensure thread safety?
swift-expert covers Swift actors as the primary tool for preventing data races in concurrent code. Actors isolate mutable state and enforce serial access through their main executor, making it impossible to accidentally access shared data from multiple threads simultaneously. You'll learn actor isolation rules, how to use nonisolated for thread-safe properties, and patterns for safe actor communication.
How can I debug and optimize Swift code for concurrency issues?
swift-expert provides debugging strategies for concurrency problems using Xcode's Thread Sanitizer, Instruments for profiling async operations, and logging techniques to trace actor isolation violations. You'll learn to identify performance bottlenecks in concurrent code, optimize task scheduling, use task priorities effectively, and test async code reliably with XCTest's async testing support.
SKILL.md
Rendered from the published skill. Quoted content, verbatim.
Swift Expert
Core Workflow
- Architecture Analysis - Identify platform targets, dependencies, design patterns
- Design Protocols - Create protocol-first APIs with associated types
- Implement - Write type-safe code with async/await and value semantics
- Optimize - Profile with Instruments, ensure thread safety
- Test - Write comprehensive tests with XCTest and async
(truncated - see the full file via the links below)
File tree — 6 files
skills/swift-expert/SKILL.md
skills/swift-expert/references/async-concurrency.md
skills/swift-expert/references/memory-performance.md
skills/swift-expert/references/protocol-oriented.md
skills/swift-expert/references/swiftui-patterns.md
skills/swift-expert/references/testing-patterns.md
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