[tome]

On the command line, i.e. a human interface, I'd be willing to soften my stance a bit but any time a program calls another program, yes, I would like it to be explicit about the parameters it accepts.

> Reader in Haskell helps prevent having to do that similar to environment variables or dynamic scoping

I would be happy with an interface like Reader in Haskell but I don't see that it's much like dynamic scope. The subject has been explored a few times in this discussion.