Update app.py

app.py

@@ -10,13 +10,19 @@ from Gradio_UI import GradioUI
 
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
+@tool
 def search_with_duckduckgo(query: str, num_results: int = 3) -> str:
     """Searches DuckDuckGo for the given query and returns the top results.
         Raises an exception if the search fails.
+
+    Args:
+        query: The search query string.  <-- Add description here
+        num_results: The number of search results to return (default is 3). <-- And here
     """
     search_tool = DuckDuckGoSearchTool()
     try:
         results = search_tool.call(tool_input=f"{query} {num_results}")
+        # Add a basic check for a successful result.
         if not results or "No  results found" in results.lower() or "error" in results.lower():
              raise ValueError("DuckDuckGo search failed to return valid results.")
         return results