Async Main Wrap is a tiny Node.js utility that lets developers write CLI tools as simple async functions (or functions returning promises) and automatically handles process exit codes, error reporting, and argument passing. By wrapping a main function with `wrap(main)`, the tool cleanly executes the CLI, supports custom error output, stream injection, and works with both CommonJS and ESM, making it ideal for anyone building small, test‑friendly command‑line utilities.