Now I understand better what you want (though still stay on my own :). I never heard about module that can do exactly what you want, and can't find anything on CPAN, so maybe you have to write it yourself. I think Pod::Coverage would be useful for you, it can find undocumented functions, but can't insert descriptions for them.

In reply to Re^3: POD using __END__ with function comments by zwon
in thread POD using __END__ with function comments by zerohero

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