The problem is that this breaks with use of tmux or similar tools since the scope of the SSH session is often smaller than the scope of my doing something on a

The problem is that this breaks with use of tmux or similar tools since the scope of the SSH session is often smaller than the scope of my doing something on a machine. I've moved to just having a limited-use key with access to dev machines and git on the hard drive of each machine I use, which covers the cases I care about.