diff --git a/backend/open_webui/tools/builtin.py b/backend/open_webui/tools/builtin.py
index f3277e3b8f..36896f9a2e 100644
--- a/backend/open_webui/tools/builtin.py
+++ b/backend/open_webui/tools/builtin.py
@@ -526,6 +526,7 @@ async def ask_user(
     Use this when the next step depends on user intent, preference, or a tradeoff that cannot be inferred safely.
 
     :param questions: 1-3 question objects, each with id, header, question, and 2-3 options. Each option needs label and description.
+        List the option you recommend first; the UI labels the first option Recommended.
     :param allow_other: Whether users may enter a free-form answer instead of choosing one of the options
     :param timeout_ms: How long the browser should keep the prompt open before cancelling it
     :return: JSON with status and answers keyed by question id