diff --git a/.github/TRTLLMINF-188-WORKFLOW-TEST.md b/.github/TRTLLMINF-188-WORKFLOW-TEST.md
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+<!--
+SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+SPDX-License-Identifier: Apache-2.0
+-->
+
+# TRTLLMINF-188 workflow verification marker
+
+This marker exists only to validate the merged post-merge approval-label
+workflow on an isolated draft pull request. Do not merge this pull request.
+
+Revision: 2