The document introduces CommandBox, a ColdFusion command line interface (CLI) tool that provides features like a package manager, REPL, integrated server, scaffolding for frameworks like ColdBox, and automation capabilities. It discusses how CommandBox can help CF developers work more efficiently by executing CFML code and commands from the command line. The document also outlines key CommandBox concepts like packages and modules, usage of its features and commands, and its extensibility through custom commands and integrations.