The permissions system seems to be mostly finegrained to help you from problems that backups and sandboxes already solve.

The more dangerous activities I find are sending messages to the outside world: I can't undo a dumb slack message to my boss.

That's fair, I have sent a, "Sorry claude sent that and I didn't tell him to", message before.

	▲	eru an hour ago \| parent [-]
		The big problem is that in general I want slack to be able to send some messages (otherwise I would ban that). But the difference between good and bad messages is something that's hard to judge mechanically.