Add parameter validation to formats

[andres-lowrie]

From a UX perspective there should be some sort of information when bad arguments are passed. Currently it's as quiet as a church mouse or blows up

this needs to be added to an interface and my gut reaction is that the Command interface should have it since this is a UX thing and the Command is the UX "entrypoint" (gawd I hope this sentence makes sense when I come back to this issue years from now 😂