fix

app.py

@@ -17,15 +17,17 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 # --- Tools ---
 
 @tool
-def smart_web_search(query: str) -> str:
-    """Smart web search with Serper API and Wikipedia fallback.
+def extract_youtube_details(url: str) -> str:
+    """
+    Extract details from a YouTube video URL.
 
     Args:
-        query (str): The search query to execute
+        url (str): A valid YouTube video URL.
 
     Returns:
-        str: Search results from Serper API or Wikipedia
+        str: Extracted metadata such as title, author, bird species count, and views.
     """
+
     try:
         time.sleep(random.uniform(1, 3))
         serper_key = os.getenv("SERPER_API_KEY")