Let's say our project is called cob, so typing `cob` would print a help screen of all the tools it knows about. typing 'cob db' would show all of the tools in the db namespace. For simplicity there is only one level of namespaces allowed. Anything under that is a command in that namespace - eg 'cob db recompute_index --column=foo' to recompute an index, 'cob deploy show_live_version --prod' to show whats in prod right now, etc.

If you're doing a task and think a tool might be available, searching through a limited set of tools based on the likely namespace and with simple help text makes it easy to find.