diff --git a/cli/azd/extensions/azure.ai.agents/tests/e2e-live/COMMENT_TRIGGER_TEST.md b/cli/azd/extensions/azure.ai.agents/tests/e2e-live/COMMENT_TRIGGER_TEST.md
new file mode 100644
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+# Live Pipeline Comment Trigger Test
+
+This temporary note exists to make this test PR match the live pipeline path
+filters. After PR #9039 is merged, use this PR to verify that the live pipeline
+can be queued from a GitHub PR comment.
+
+Full pipeline name:
+
+```text
+/azp run azure-dev - live - ext - azure.ai.agents
+```
+
+Short name to try if needed:
+
+```text
+/azp run ext-azure-ai-agents-live
+```
+
+Expected result: Azure Pipelines queues definition 8268 and does not reply with
+either of these errors:
+
+```text
+No pipelines are associated with this pull request.
+Azure Pipelines could not run because the pipeline triggers exclude this branch/path.
+```
+
+If allowed to run to completion, the live test should end with:
+
+```text
+--- PASS: TestTier2Live
+    --- PASS: TestTier2Live/code
+    --- PASS: TestTier2Live/container
+PASS
+```
+
+ADO pipeline summary:
+https://dev.azure.com/azure-sdk/internal/_build?definitionId=8268&_a=summary