I recommend to look into git log --help and git rev-list --help .
I just created 2 scripts to list commits from Git repositories. It’s more in the score of an alias actually, so nothing comprehensive here. If you have some one-liners, alias or scripts for commits listing, please share here. The link of this post goes to the git log documentation. I’ll share mine in the comments too rather than in the post.
Personally, I think that’s a decent mental shortcut. I would call an API “good plumbing.” It kind of depends on your audience, for some the API is for the intended audience (developers), but from their perspective the API may be the plumbing while they provide a higher level tool (eg. a GUI) for their intended audience (regular people).