# Swift Development Guidelines

> Objective: Define standards for safe, idiomatic, and performant Swift development targeting iOS, macOS, and visionOS, covering language features, concurrency, architecture, testing, and tooling.

::: tip Source File
View the full rule: [`.agent/rules/swift.md`](https://github.com/snowdreamtech/template/blob/main/.agent/rules/swift.md)
:::

## Sections

- 1. Language Features & Style
- 1. Optionals & Error Handling
- 1. Concurrency (Swift Concurrency)
- 1. Architecture & Patterns
- 1. Testing & Tooling
