Ways to contribute would be by submitting pull requests, reporting issues and creating suggestions. In the case of a defect please provide steps to reproduce the issue, as well as the expected result and the actual one. Issues should be be reported here.
If you'd like a hand at trying to implement features yourself, please validate your changes by running the tests. Also pull requests should contain tests whenever possible. When submitting pull requests please ensure your coding style adheres to Alfresco Content Services Coding Standards wherever possible.
As a contributor you must sign a contribution agreement. Please review the guidelines for submitting contributions. After reviewing the guidelines, if you have any questions about making a contribution you can contact us on the Identity Service gitter channel.