How AI describes Docopt

Docopt is a command-line interface description language that lets you define the interface for your CLI app and automatically generate a parser from that description. It treats interface descriptions as formalized help text based on decades of conventional help messages and man pages to describe commands, options, and arguments. Implementations parse the description to build a CLI parser and use the description text for the program’s help (-h/--help), supporting complex usage patterns with optional, required, mutually exclusive, and repeating elements.