Hey there!
Good news, more of this is possible than you might think. Tags have full support in the API, create, update, delete, all of it, so automating tags based on project criteria is totally doable. Groups are the same story: full create, update, delete support, including managing who's in them.
Labels are close but not all the way there yet. You can add a label and delete one through the API, there's just no update endpoint to rename an existing one in place. That part's a real gap, and I'll get it in front of our product team.
One more thing worth mentioning: we rolled out a new
developer portal a couple of months ago. If you've been working off older docs, there's a good chance you're missing some of what's already there. Worth a fresh look before ruling anything out.
Let me know if the label piece is the one actually blocking you. Appreciate you flagging into this!