diff --git a/.github/workflows/_probe.yml b/.github/workflows/_probe.yml
new file mode 100644
index 0000000..1dc6267
--- /dev/null
+++ b/.github/workflows/_probe.yml
@@ -0,0 +1,9 @@
+name: probe
+on:
+  pull_request:
+    branches: [main]
+jobs:
+  probe:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo ok