diff --git a/docs/pr-detection-smoke.md b/docs/pr-detection-smoke.md
new file mode 100644
index 00000000..a20f90cb
--- /dev/null
+++ b/docs/pr-detection-smoke.md
@@ -0,0 +1,5 @@
+# PR Detection Smoke Test
+
+This file exists only to exercise PR detection workflows.
+
+Created: 2026-06-01