Prefer a `struct` for a value type with independent copies and no need for identity or inheritance: ```swift struct Point { var x: Double; var y: Double } ``` Use a `class` when instances must be shared by reference, have identity or lifecycle semantics, or require inheritance: ```swift final class Session { var token: String; init(token: String) { self.token = token } } ``` Structs are copied on assignment; class instances are shared. Keep properties immutable with `let` when possible and ma...
Scanned 9/5/2026
Install to Claude Code
Skills Directorynpx -y skills add HoangNguyen0403/agent-skills-standard --skill swift-language --agent claude-codeInstalls into .claude/skills of the current project.
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Prefer a `struct` for a value type with independent copies and no need for identity or inheritance:
```swift
struct Point { var x: Double; var y: Double }
```
Use a `class` when instances must be shared by reference, have identity or lifecycle semantics, or require inheritance:
```swift
final class Session { var token: String; init(token: String) { self.token = token } }
```
Structs are copied on assignment; class instances are shared. Keep properties immutable with `let` when possible and mark non-subclassable classes `final`.
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Use this skill when developing or maintaining browser extension code in the `browser/` directory, including Chrome/Firefox/Edge compatibility, content scripts, background scripts, or i18n updates.
