self-halting
adjectiveUK /ˌself ˈhɔːltɪŋ/
US /ˌself ˈhɔːltɪŋ/
Stopping yourself before you do something.
The robot has a self-halting switch that turns it off if it gets too hot.
OTHER MEANINGS
2. A machine or program that shuts itself down when something goes wrong.
The self-halting alarm cut the power before the wires could spark.
3. A rule that makes a process stop on its own after a set time.
The game has a self-halting timer so nobody plays too long.
4. A person who chooses to stop their own actions.
Her self-halting habit kept her from saying something unkind.