Swift Best Practices Skill Overview Apply modern Swift development best practices focusing on Swift 6+ features, concurrency safety, API design principles, and code quality guidelines for iOS and macOS projects targeting macOS 15.7+. When to Use This Skill Use this skill when: - Writing new Swift code for iOS or macOS applications - Reviewing Swift code for correctness, safety, and style - Implementing Swift concurrency features (async/await, actors, MainActor) - Designing Swift APIs and public interfaces - Migrating code from Swift 5 to Swift 6 - Addressing concurrency warnings, data race is…