Maybe you could provide the full http://www.perlmonks.org/index.pl?node_id=310337 URL in your POD. :)
I don't like the idea of your debug() — far too hackish a way to enable deprecation warnings. Probably the best option is to use warnings::register instead. Another idea would be a companion module which merely sets a package variable; it could be then both be used from all the usual places as well as autoenabled by adding -Mdeprecated::warn or some such to PERL5OPT.
Are you putting this on CPAN?
Btw, Craft is more or less obsolete, Code Catacombs is where code should be posted. See One Section to rule them all. for a discussion.
Makeshifts last the longest.
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