Update app.py

app.py

@@ -281,12 +281,12 @@ class AdvancedRAG:
             if not self.thread_id:
                 self.create_thread()
 
-            # Add the file to the thread
+            # Add the file to the thread with the required tools field
             openai.beta.threads.messages.create(
                 thread_id=self.thread_id,
                 role="user",
                 content="I have uploaded a document. Please analyze it.",
-                attachments=[{"file_id": file_obj.id}]
+                attachments=[{"file_id": file_obj.id, "tools": ["file_search"]}]
             )
 
             return file_obj.id