Re-Ask Rate: The Failure Signal Your Eval Pipeline Never Extracts
Open any production chat transcript long enough and you will find a user who asks the same question three times. The phrasing changes a little each turn — pronouns swap to nouns, a clarifier gets bolted on, the polite hedge falls away by the third try — but the underlying request is identical. They are not asking three questions. They are asking the same question, and the agent is failing to answer it, and the user is hoping that this time the words will land differently.
The transcript-level signal here is so loud it is almost obscene. The user has told you, with their own keystrokes, that the previous response did not help. They did not need to fill out a survey. They did not need to leave a thumbs-down. They told you by typing the question again. And in most production AI stacks, this signal is silently discarded by an eval pipeline that scores each turn in isolation and a satisfaction survey that only fires at session end — by which point the user who re-asked three times has usually already churned and will never grade anything.
