diff --git a/workspace/tests/test_executor_helpers.py b/workspace/tests/test_executor_helpers.py
index 0aa0c991..9ca88063 100644
--- a/workspace/tests/test_executor_helpers.py
+++ b/workspace/tests/test_executor_helpers.py
@@ -763,6 +763,7 @@ def test_sanitize_agent_error_stderr_and_exc():
     out = sanitize_agent_error(exc=err, stderr="rate limit exceeded")
     assert "ValueError" in out  # exc class IS the tag when stderr is provided
     assert "rate limit exceeded" in out
+    assert "workspace logs" not in out  # stderr form, not the generic form
 
 
 def test_sanitize_agent_error_stderr_empty_string():