Can you tell me what you absolutely know to be a universal rule across this Barge that warrants detention into Zero?

You can't. There are none. Wardens make their own rules as they go, specific to their inmates.

Yet when an inmate goes about unpaired, how are they to determine a responsible course of action? If we are to assume that they are morally destitute, where do you expect them to find personal responsibility?

There is simply no structure.