diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 90ac9a2..0f65619 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
     steps:
       - name: Detect changed parts
         id: filter
-        uses: actions/github-script@v7
+        uses: actions/github-script@v9
         with:
           script: |
             const files = await github.paginate(github.rest.pulls.listFiles, {
diff --git a/ai/.ci-smoke b/ai/.ci-smoke
new file mode 100644
index 0000000..b5e4157
--- /dev/null
+++ b/ai/.ci-smoke
@@ -0,0 +1 @@
+CI smoke test only. Do not merge.
diff --git a/server/.ci-smoke b/server/.ci-smoke
new file mode 100644
index 0000000..b5e4157
--- /dev/null
+++ b/server/.ci-smoke
@@ -0,0 +1 @@
+CI smoke test only. Do not merge.
diff --git a/web/.ci-smoke b/web/.ci-smoke
new file mode 100644
index 0000000..b5e4157
--- /dev/null
+++ b/web/.ci-smoke
@@ -0,0 +1 @@
+CI smoke test only. Do not merge.