I'll give this a try. Managing "hidden state" in notebooks is a known flaw of Jupyter. If nothing else, an indicator that says, "this code is dirty" would be us

I'll give this a try. Managing "hidden state" in notebooks is a known flaw of Jupyter. If nothing else, an indicator that says, "this code is dirty" would be useful. I have a long standing habit of doing "restart kernel and run all cells" before walking away from a session, to help avoid this. I'd rather see it break in front of me than have it break 6 months later or in someone else's use.