Not clever one-liners. These are the structural patterns that keep an agent stable under real traffic: how to phrase an escalation trigger so it fires reliably, how to make a refusal feel like service, how to force structured output that an integration can parse without a fallback parser.
Confidence-threshold escalation sounds elegant and behaves unpredictably, because a model can be confidently wrong. Explicit trigger conditions — the caller said refund, legal, complaint, or asked for a person by name — fire reliably and can be tested in an eval suite. Boring, and correct.
Replace the example phrasing with sentences from your own recorded calls. The structure carries over between businesses; the language does not, and template language is the single clearest signal to a caller that they are talking to something bought rather than built.