How can I access a method of the consumer class inside a method created at runtime in a method of the parameterized role using Moose with Perl?

To answer your second question, the reason is because Perl's OO doesn't allow you to add a method to just one instance of a class, so Moose has to fake it by creating a subclass with the extra method and reblessing the unique object into that subclass.

It sounds like your underlying problem is nearly exactly what I described at this question: from within the role definition, you need to get at the class (and its meta-class) of the object or class the role is being applied to. This isn't possible from within normal roles, but it's possible through parameterized roles.

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