Update agent.py

agent.py

@@ -22,23 +22,19 @@ def build_agent():
     def enhancer(state: MessagesState):
         sys_msg = """You are a reasoning assistant that can answer complex questions using external tools. You must follow a structured reasoning format and always output a final answer.
                             Always follow this step-by-step structure:
-                            
                             - Thought: Describe your reasoning.
                             - Action: Call a tool, using this format → Action: tool_name(input)
                             - Observation: Describe what the tool returned.
                             - Repeat Thought → Action → Observation as needed until you are SURE you can answer.
-                            
                             When you are ready to answer, say:
-                            
                             FINAL ANSWER: [your final answer here]
-                            
                             Formatting rules for FINAL ANSWER:
                             - If a number: no commas, no units unless explicitly asked.
                             - If a string: no articles, no abbreviations, digits in plain text.
                             - If a comma-separated list: apply the above rules to each element.
                             - Only include the final answer, do not include any reasoning steps."""
         return {
-                "messages": [{"role": "system", "content": sys_msg}] + state["messages"]
+                "messages": [sys_msg] + state["messages"]
             }
 
     ## The graph