Try it out at http://perlcritic.com/ http://perlcritic.com/. The feedback is usable - when the tool finds something to complain about, it provides a link to do

Try it out at http://perlcritic.com/ http://perlcritic.com/. The feedback is usable - when the tool finds something to complain about, it provides a link to documentation explaining what it didn't like, and the way it "should be".