Update app.py

app.py

@@ -18,6 +18,8 @@ from SPARQLWrapper import SPARQLWrapper, JSON
 # --- Constants ---
 DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 HF_TOKEN = os.getenv("HF_TOKEN", None)
+REQUESTS_TIMEOUT = 15 # Define a standard timeout for requests
+HEADERS = {'User-Agent': 'GAIAgent/1.0 (Langchain Agent; +http://example.com/info)'} # Be a good citizen
 
 @tool
 def web_search(query: str) -> str: