fix

app.py

@@ -17,17 +17,19 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 # --- Tools ---
 
 @tool
-def extract_youtube_details(url: str) -> str:
+def smart_web_search(query: str) -> str:
     """
-    Extract details from a YouTube video URL.
+    Perform a smart web search using Serper API with Wikipedia fallback.
+
+    This tool queries the Serper API (if the key is set), formats the top results, and falls back to
+    Wikipedia if no data is returned or if the key is missing.
 
     Args:
-        url (str): A valid YouTube video URL.
+        query (str): The search query to execute.
 
     Returns:
-        str: Extracted metadata such as title, author, bird species count, and views.
+        str: Concatenated search results or Wikipedia summary.
     """
-
     try:
         time.sleep(random.uniform(1, 3))
         serper_key = os.getenv("SERPER_API_KEY")
@@ -51,13 +53,13 @@ def extract_youtube_details(url: str) -> str:
                     for item in data['organic'][:3]:
                         results.append(f"RESULT: {item.get('title', '')} - {item.get('snippet', '')}")
                 return "\n".join(results) if results else "No Serper results"
-        # If serper_key is not set or no results, fallback to Wikipedia
         return get_detailed_wikipedia(query)
     except Exception as e:
         return f"Search error: {str(e)}"
 
 
 
+
 @tool
 def extract_youtube_details(url: str) -> str:
     """