Basically it is a project from the OpenStack community that makes it easier to understand and troubleshoot your Ansible roles and playbooks.
If you want more information, please refer to the Documentation Page.
Anyhow, I just found a little bug on the Ansible Role to install ARA ansible-role-ara on Debian based distros and just send the patch to fixit.
Here is the link to my contribution.
And, as I am proud of my first commit on a big project here is the screenshot too:
I feel happy and motivated to still learn about this Open Source project and a lot more.