From a1de5c62e92bd1aaa0d85f50752e3bac08b29a24 Mon Sep 17 00:00:00 2001
From: AAliKKhan <muhammda014@gmail.com>
Date: Thu, 23 Jul 2026 16:03:00 +0500
Subject: [PATCH] fix: mark realtime session as closed before CancelledError on
 cycle detection

---
 src/agents/realtime/session.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/agents/realtime/session.py b/src/agents/realtime/session.py
index 66dc72be5b..def69cee86 100644
--- a/src/agents/realtime/session.py
+++ b/src/agents/realtime/session.py
@@ -299,7 +299,8 @@ async def close(self) -> None:
         if cleanup_task is not None and (
             current_task in self._guardrail_tasks or current_task in self._tool_call_tasks
         ):
-            # Cleanup is already waiting for this tracked task, so waiting here would form a cycle.
+            self._closing = True
+            self._closed = True
             raise asyncio.CancelledError
 
         if cleanup_task is None: