> Imagine you upgrade the "read_reactor" tool, and your usage in your "control_reactor" becomes invalid As others have noted, that's an error which shouldn't g

> Imagine you upgrade the "read_reactor" tool, and your usage in your "control_reactor" becomes invalid As others have noted, that's an error which shouldn't go to stdout. But help text is not an error. It's arguably the expected and primay output of the help function.