I plan to put a Claymore-like watchdog: in case a GPU falls under a certain hashrate (default: 0) the miner quits. Then it's up to you to have a script (.bat or .sh) whose next line is a reboot command.
it seems to me that this does not always help those who do not have a hardware watchdog. I have one or two cards falling and when I close the miner it just hangs for a long time (20 minutes the system may hang in this state), so the next line will not be executed for a long time and the reboot will not happen. It may be better to call a pre-defined script, even if it's empty, but there everyone will write what he needs in it.