Update app.py

app.py

@@ -15,6 +15,11 @@ from langchain_community.tools import DuckDuckGoSearchRun
 from langchain.tools import tool
 from dotenv import load_dotenv
 load_dotenv()
+
+
+
+DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
+
 # ----------- Agent State -----------
 class AgentState(TypedDict):
     messages: Annotated[Sequence[BaseMessage], add_messages]