I used Perl::Critic 0.12 to clean some legacy code and I was impressed. Now I see that the latest version has many enhancements, and such a task should be much easier.

I like the interface, although the policy names are a little scary. If you could find a way of making them shorter (or even identifiable by some acronym, for instance ppwb as a shortcut to ProhibitParensWithBuiltins) perhaps they could become a habit for command line enthusiasts.

As for your plan to enhancements, I see very favourably your idea of covering most of Conway's book, but I don't think I would use a feature that changes my code automatically based on some rule. Sure it looks interesting, but I produce just enough bugs manually, that I don't need the ones introduced in my code automatically.

Kudos for this great job!