Update LG_agent.py

LG_agent.py

@@ -16,20 +16,6 @@ chat = ChatOpenAI(
     model="gpt-3.5-turbo",
     openai_api_key=OPENAI_API_KEY,
     temperature=0,
-    model_kwargs={
-        "messages": [
-            {
-                "role": "system",
-                "content": (
-                    "You are an intelligent agent that solves problems step by step.\n"
-                    "Before answering, first plan your response as if thinking out loud.\n"
-                    "If tools are available, call them explicitly and reflect on their results.\n"
-                    "Always finish with a clear and direct answer based on the evidence collected.\n"
-                    "Never make assumptions—use a tool or state lack of information."
-                )
-            }
-        ]
-    }
 )
 
 chat_with_tools = chat.bind_tools(all_tools)
@@ -48,9 +34,13 @@ def assistant(state: AgentState):
 
     sys_msg = SystemMessage(
         content=(
-            "You are a helpful AI assistant. You solve problems step by step and can use the following tools:\n"
-            f"{tool_descriptions}\n"
-            "Always plan your response, invoke tools explicitly if needed, and conclude with a direct answer."
+            "You are a helpful AI assistant who solves GAIA benchmark questions using step-by-step reasoning.\n"
+            "Before answering, always think out loud and plan your approach.\n"
+            "Use tools when you lack information or need external data.\n"
+            "Never guess or make assumptions—if something is unknown, state it clearly or use a tool.\n"
+            "Conclude with a clear and supported final answer.\n"
+            "\nAvailable tools:\n"
+            f"{tool_descriptions}"
         )
     )