program reply(email: text) -> text {
  budget { max_agent_calls: 2 }

  let intent = decide "What does this email need?" using email
    as choice {
      help: "Help with a problem",
      sales: "Information before buying",
      other: "Anything else"
    }

  let task = match intent.value {
    help => "Draft a helpful support reply.",
    sales => "Draft a concise sales reply.",
    other => "Draft a clarifying question."
  }

  return generate task using email
}