Update app.py

app.py

@@ -12,7 +12,12 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 
 @tool
 def wikipedia_search(query: str) -> str:
-    """Search Wikipedia and return a concise summary."""
+    """
+    Search Wikipedia and return a concise summary.
+
+    Args:
+        query: The search query string.
+    """
     try:
         docs = WikipediaLoader(query=query, load_max_docs=2).load()
         return "\n\n".join(doc.page_content[:1500] for doc in docs)
@@ -21,7 +26,12 @@ def wikipedia_search(query: str) -> str:
 
 @tool
 def arxiv_search(query: str) -> str:
-    """Search arXiv and return paper abstracts."""
+    """
+    Search arXiv and return paper abstracts.
+
+    Args:
+        query: The search query string.
+    """
     try:
         docs = ArxivLoader(query=query, load_max_docs=2).load()
         return "\n\n".join(