Well, all you need to do in a macro to provide error checking is to assert or raise a condition when something is wrong. That&#x27;s pretty standard.<p>In Haskell land, you can do wonderful things like Servant, the statically verified API server—but that kind of code is very advanced, and written by a shadowy cabal of type level wizards. I think there is less of a standardized way of doing this stuff than one might expect.<p>I&#x27;m not really sure what you mean by &quot;standardized.&quot; Common Lisp is an actual ANSI standard... But you seem to be referring to the existence of common practices.<p>I&#x27;m not convinced that the problem you describe is actually a problem, and I&#x27;m not convinced that Haskell or Idris will end up being more successful in the mainstream than Lisp.<p>(I&#x27;m a huge fan of Haskell, Agda, and static&#x2F;dependent typing, for the record.)