The **@pkgjs/parseargs** package implements a polyfill for Node .js’s `util.parseArgs()` API. It lets developers of CLI scripts and simple command‑line tools declaratively define options (with types, short aliases, defaults, multiples, etc.) and then parses an argument list into a structured object containing the parsed option values, positional arguments, and optional token detail. It targets Node developers who need a stable, built‑in‑style argument parser without pulling in larger third‑party libraries.