So Dieter started a thread about MooseX::Types already but I wanted to sort out the others that had been mentioned for moving to core.
MooseX::StrictConstructor I know has been mentioned as a nice addition to core as an optional trait, one that perhaps Core modules should use. MooseX::NonMoose looks like a likely candidate as well, we've been saying for years that Moose "just works" with non-Moose objects. These are the ones that *I* can see looking at http://cpants.perl.org/dist/used_by/Moose what else looks likely? -Chris