The recruiter does not want a novel. They want proof you have already done something close.
Situation: the context in one sentence. Task: what was expected of you. Action: what you did, in the first person. Result: a number, a deadline, a decision.
Keep one technical example, one people example, one repaired failure. Three stories cover almost the whole interview.
If you wander, come back to the action. That is where you are judged.
Say it out loud. A clear story fits in under a minute.