Perl::Critic is an extensible framework for creating and applying coding
standards to Perl source code. Essentially, it is a static source code analysis
engine. Perl::Critic is distributed with a number of Perl::Critic::Policy
modules that attempt to enforce various coding guidelines. Most Policies are
based on Damian Conway's book Perl Best Practices. You can choose and customize
those Polices through the Perl::Critic interface. You can also create new
Policy modules that suit your own tastes.

For a convenient command-line interface to Perl::Critic, see the documentation
for perlcritic. If you want to integrate Perl::Critic with your build process,
Test::Perl::Critic provides a nice interface that is suitable for test scripts.