Commander

Commander 🎛️ — Swift-first parsing, zero forks

**Swift-first parsing. Total command over your CLI.**
**One signature. Infinite tooling.**
**All the ergonomics, none of the forks.**

Commander is Peekaboo's Swift-native command-line framework. It combines declarative property wrappers, a lightweight parser/router, and runtime helpers that integrate tightly with async/await + approachable concurrency.

**Platform story:** Commander targets the platforms we actively test: macOS, Linux, and Apple simulators (iOS/tvOS/watchOS/visionOS). Windows and Android builds are not supported or exercised in CI, so we no longer advertise them.

Highlights

• Property-wrapper ergonomics – @Option, @Argument, @Flag, and @OptionGroup mirror the Swift Argument Parser API but simply register metadata. You keep writing declarative commands while Commander handles parsing and validation centrally.
• Command signatures everywhere – CommandSignature reflects every option/flag/argument so docs, help output, agent metadata, and tests all rely on the exact same definitions.
• Source-of-truth metadata – CommandDescription replaces the old ArgumentParser CommandConfiguration, giving us Commander-native builders