diff --git a/validation/reviewer-bot-epoch-flip-final-pr-comment.txt b/validation/reviewer-bot-epoch-flip-final-pr-comment.txt
new file mode 100644
index 00000000..ebcc9ca4
--- /dev/null
+++ b/validation/reviewer-bot-epoch-flip-final-pr-comment.txt
@@ -0,0 +1,2 @@
+Disposable validation artifact for reviewer-bot epoch-flip final smoke check.
+Scenario: same-repo trusted-direct PR command after observer suppression.