Update agent.py

agent.py

@@ -20,7 +20,7 @@ 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.
+        system_prompt = """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)
@@ -33,6 +33,9 @@ def build_agent():
                             - 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."""
+
+        sys_msg = SystemMessage(content=system_prompt)
+        
         return {
                 "messages": [sys_msg] + state["messages"]
             }