Swift Best Practices

Write native macOS/iOS Swift behavior for the active task. SwiftUI on Apple's modern rendering stack is the default; AppKit is a narrow capability bridge. Selection supplies policy, never mutation or tool authority.

Project tooling routes by outcome to the tailrocks-swift-project-* family; visual/material policy belongs to tailrocks-macos-design; Rust-core and Apple-platform effect architecture belongs to tailrocks-swift-rust-core-boundary. Refuse findings-only review and behavior-preserving refactor requests; route them to tailrocks-swift-review or tailrocks-swift-refactor.

Apply runtime-trust.md. Load only the relevant code reference: