modify: 统一插件风格

publisher.py

@@ -3,10 +3,11 @@ MQTT Publisher — 向 chongming Worker 发送 MQTT 请求
 
 用法:
   python publisher.py <worker_type> <operation> [json_payload]
-  
-示例:
-  python publisher.py example add '{"a": 3, "b": 5, "_method": "GET"}'
-  python publisher.py doubao analyze '{"text": "hello", "_method": "POST"}'
+
+示例（信封协议，meta 可选）:
+  python publisher.py example add '{"meta": {"method": "GET"}, "data": {"a": 3, "b": 5}}'
+  python publisher.py example add '{"a": 3, "b": 5}'          # 扁平载荷自动包装（method=GET）
+  python publisher.py example add '{"meta": {"method": "MQTT"}, "data": {"a": 3, "b": 5}}'
 """
 
 import asyncio
@@ -24,7 +25,7 @@ PREFIX = "chongming"
 # 默认参数
 DEFAULT_WORKER = "example"
 DEFAULT_OP = "add"
-DEFAULT_PAYLOAD = {"a": 3, "b": 5, "_method": "GET"}
+DEFAULT_PAYLOAD = {"meta": {"method": "GET"}, "data": {"a": 3, "b": 5}}
 
 async def main():
     worker_type = sys.argv[1] if len(sys.argv) > 1 else DEFAULT_WORKER
@@ -33,6 +34,9 @@ async def main():
 
     topic = f"{PREFIX}/{worker_type}/{operation}"
     payload = json.loads(payload_str)
+    # 扁平载荷自动包装为信封（method 默认 GET），已含 meta/data 则原样使用
+    if not (isinstance(payload, dict) and ("meta" in payload or "data" in payload)):
+        payload = {"meta": {"method": "GET"}, "data": payload}
 
     client = MQTTClient()
     await client.connect("mqtt://localhost:1883/")