Shackle appears to have infrastructure in place to be limited, though the limit does not appear to be implemented ("revives remaining: infinity"). A config option would be nice to limit the amount of revives, especially on servers where the infinite revives is somewhat unbalanced given the cost.

It doubles your radiation everytime you die, and doesn't revive you if you're radiation poisoned to death, you goob

though the limit does not appear to be implemented

While there is no hard limit on the revives like the other items, there is a soft cap caused by the increasing amounts of radiation you get per revive, capping effectively at 31.