Swift-6-Agent-Skill

Generate, review, or refactor Swift code using modern language features from Swift 6.0 through 6.3. Use when writing new Swift code, reviewing existing code for outdated patterns, migrating from Swift 5.x to 6.x, debugging concurrency warnings, or answering questions about current Swift idioms. Covers concurrency, typed throws, noncopyable types, observation, C interop, optimization controls, testing, and more.