Swift Programming

<skill_scope skill="swift-programmer"> Related skills:

• software-engineer — Core design principles and system architecture
• macos-programmer — macOS-specific patterns when building Mac apps
• test-driven-development — Testing philosophy and practices
• functional-programmer — Functional paradigm principles (Swift supports FP)

This skill covers Swift-specific idioms, tooling, and philosophy. It emphasizes protocol-oriented programming, value semantics, strict concurrency (Swift 6+), and compile-time safety guarantees. </skill_scope>

Core Philosophy

Version targeting: Use the latest Swift version available. For internal apps, don't support older versions. For open-source libraries, support N-1 or N-2 versions maximum.