cli-building

What problem does it solve?

Building robust CLIs can be time-consuming, requiring asynchronous I/O, robust command architectures, and consistent output UX. This skill helps engineers design and reason about async-first CLIs with modular components and clear guidance for development and maintenance.

Core Features & Use Cases

• Async-first design: All I/O should be async/await to keep CLIs responsive.
• Composable commands: Break functionality into small, reusable commands that can be composed.
• Strategy pattern: Use strategy-based routing to handle workflow branching and dynamic task selection.
• Output formatting: Enforce readable, colorized, Unicode-friendly terminal output with NO_COLOR support.

Quick Start

Provide a simple prompt to scaffold an async CLI with a sample 'greet' command that prints a colored welcome message and demonstrates command composition.