Our commit messages have become useless since we adopted a shared agent skill for making commits.

The LLM tends to fill the messages with irrelevant details while still failing to mention what the change actually does.

Exactly.

I was team / tech lead on the last contract gig I had, and I had a policy in writing that people should write their own commit messages and PR descriptions. For this reason and others.

... And follow conventional commit format. Linear commits. Rebasing / fast-forward, no merge commits. Etc. etc.

Nobody paid any attention. The git history was next to useless. Bisecting would be completely impossible. People were mostly just pumping and dumping. I could have drawn a hard red line but the founder was the worst for it.

We're doomed.