Ping team members in MRs that are waiting for a review

Proposal

1. Ping inactive reviewers on community MRs ready for review to either review or reassign to someone else.
   • Conditions:
     • MR has Community contribution and workflowready for review
     • MR doesn't have automation:reviewers-reminded
     • No activity on the MR in the last 7 days
     • MR has reviewer(s) assigned
2. Ping MR coaches on community MRs ready for review.
   • Conditions:
     • MR has Community contribution and workflowready for review
     • MR doesn't have automation:reviewers-reminded
     • No activity on the MR in the last day (i.e. after 1 day of inactivity, ping an MR coach)
     • MR has no reviewers assigned

In both policies, we hint to add workflowin dev if some work from the author is actually required.

If the reviewer doesn't take any action, the policy won't fire again, unless automation:reviewers-reminded is removed.

These policies should ensure that the ball is rolling when a Community contribution MR is under a GitLab team member responsibility.