多 Agent 架构选择：Router、Supervisor 与 Handoff

from dataclasses import dataclass
from typing import Literal


Route = Literal["device", "rule", "unsupported"]


@dataclass(frozen=True)
class RouteResult:
    target: Route
    reason: str


def route(text: str) -> RouteResult:
    if any(word in text for word in ("状态", "温度", "离线")):
        return RouteResult("device", "命中设备状态词")
    if any(word in text for word in ("规则", "阈值", "处置")):
        return RouteResult("rule", "命中规则知识词")
    return RouteResult("unsupported", "不属于已开放能力")


def device_agent(text: str) -> str:
    return "设备专家：AX-3 当前离线。"


def rule_agent(text: str) -> str:
    return "规则专家：离线超过 5 分钟应创建巡检工单。"


def run(text: str) -> dict:
    selected = route(text)
    handlers = {"device": device_agent, "rule": rule_agent}
    if selected.target not in handlers:
        return {"status": "rejected", "route": selected.target, "reason": selected.reason}
    return {
        "status": "completed",
        "route": selected.target,
        "reason": selected.reason,
        "answer": handlers[selected.target](text),
    }


print(run("AX-3 现在是什么状态？"))