Points Claude at the markdown documentation Apple ships inside Xcode, the same files that power Xcode's own AI features. When you hit a Swift 6 concurrency error or need to know how Liquid Glass actually works, this reads the authoritative source directly using Claude's native Read tool. Covers 20 framework guides (SwiftUI, Foundation Models, SwiftData, StoreKit) and 46 compiler diagnostic explanations. No MCP server needed. The session hook detects your Xcode path automatically, so you just ask about the API and Claude pulls the real docs. Use it alongside other Axiom skills when you want Apple's word on something, not a hallucination.
npx skills add https://github.com/charleswiltgen/axiom --skill axiom-apple-docs