diff --git a/tests/unit/llms/anthropic/messages/context_management/test_dispatcher.py b/tests/unit/llms/anthropic/messages/context_management/test_dispatcher.py
index b79e33b0c3b..fabb05c2e61 100644
--- a/tests/unit/llms/anthropic/messages/context_management/test_dispatcher.py
+++ b/tests/unit/llms/anthropic/messages/context_management/test_dispatcher.py
@@ -151,6 +151,7 @@ async def test_sync_editor_counts_tokens_off_the_event_loop():
                     {
                         "type": "clear_tool_uses_20250919",
                         "trigger": {"type": "input_tokens", "value": 10_000_000},
+                        "keep": {"type": "tool_uses", "value": 0},
                     }
                 ]
             },