If your agent screws up, can you actually prove what it did

Had this on my mind. support agent issued 10 refund requests to stripe it shouldn't have.
Nobody notices for three weeks, then finance asks why. You go check the logs and all it says is task completed. cool. so now you're in a meeting guessing what your own agent did.

Everyone logs the happy path. nobody logs the part where you have to explain it later. Anyone running agents in prod, if one went rogue tomorrow could you actually rebuild what happened or would you be guessing too.