write tests
... the only thing authors hate more than writing documentation.

You can see the test coverage results of some modules at: cpancover.com: new web site for CPAN code coverage. Modules with lots of red (especially 0.00) need tests. Unfortunately, a very small percentage of all CPAN modules have results because people need to request to add a module to the list.

In reply to Re: How to find a module to contribute to by toolic
in thread How to find a module to contribute to by stevieb

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