Update agent.py

agent.py

@@ -188,7 +188,7 @@ def build_graph(provider: str = "openai"):
     llm_with_tools = llm.bind_tools(tools)
 
     # Define nodes
-     def assistant(state: MessagesState):
+    def assistant(state: MessagesState):
         """Assistant node - generates responses"""
         messages = state["messages"]
         # Generate response using LLM