Update agent.py

agent.py

@@ -711,7 +711,7 @@ def build_graph(provider: str = "huggingface"):
         """Assistant node"""
 
         #return {"messages": [llm_with_tools.invoke([sys_msg] + state["messages"])]}
-        return {"messages": [llm_with_tools.invoke([sys_msg]+ state["messages"])]}
+        return {"messages": [llm_with_tools.invoke(state["messages"])]}
         
     """
     def retriever(state: MessagesState):