---
description: Swift 6.0+ engineering and coding standards
globs: *
alwaysApply: true
---

Always adhere to `CODING.md` and `docs/CODING_SWIFT.md`:
- No explanatory comments.
- Swift 6 strict concurrency: complete data-race safety, actor isolation, Sendable.
- Zero `!` force unwraps or `try!`; guard let early returns.
- Value semantics (struct/enum) over classes.
- File <= 400 lines, Type <= 150 lines, Function <= 50 lines, Max 3 parameters.