updates on the agent

core/message_bus.py

@@ -8,8 +8,11 @@ from collections import defaultdict
 from dataclasses import dataclass
 from enum import Enum
 
-import nats
-import nats.js.errors
+try:
+    import nats
+    import nats.js.errors
+except ImportError:
+    nats = None
 
 from core.types import AgentMessage, MessageType
 from core.logger import logger
@@ -56,6 +59,9 @@ class MessageBus:
 
     async def connect(self):
         """Connect to NATS and create the logistics JetStream stream."""
+        if nats is None:
+            logger.warning("nats-py not installed; message bus running in local in-memory mode")
+            return
         self._nc = await nats.connect(
             servers=[f"nats://{NATS_HOST}:{NATS_PORT}"],
             user=NATS_USER,