No ...Perl is so dynamic that you will hardly automatically parse all subs without an AI which is more clever than you.

But Yes ... you might built a solution which fits in 80-90 percent of the cases.

For instance is it allowed to dynamically proxy subs with AUTOLOAD and the way args are read from @_ can vary in many ways.

In the case of OO classes you'd also need to check the inheritance tree in @ISA.

And I don't even know which backdoors XS modules are allowed to use.

Saying so,after using a modul it's possible to dynamically introspect its Symbol Table Hash aka STASH.

And it's possible to list all lines involving the @_ array.

Something standard like my ($self,$name) = @_ might be easy to decipher.

But this will only show you the internal variable name and not the description of an argument $name.

Hence this would only be a semi automatic help often requiring human intervention.

But in your case, no way

From my experience with Image Magick this won't help much though, because the underlying C library is pretty inconsistent and Perl might only provide a thin layer.