swift-best-practices

# 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 issues, or compiler errors related to Sendable/isolation - Working with modern Swift language features introduced in Swift 6 and 6.2 ## SwiftLens MCP Integration (Claude Code) This skill complements **SwiftLens MCP server** for semantic-level Swift code analysis. **What SwiftLens Provides:** - 15 tools for semantic Swift analysis using Apple's SourceKit-LSP - Symbol lookup, cross-file references, type information - Safe code modification and refactoring - Compiler-grade understanding of Swift code structure **What This Skill Provides:** - Swift 6+ design patterns and best practices - Concurrency strategies (async/await, actors, MainActor) - API design guidelines and naming conventions - Migration guidance (Swift 5 → Swift 6) **Setup for Claude Code CLI:** Create `.claude/mcps/swiftlens.json` in your Swift project: ```json { "mcpServers": { "swiftlens": { "desc...