diff --git a/.github/workflows/pr-harness.yaml b/.github/workflows/pr-harness.yaml
new file mode 100644
index 0000000..a5122c0
--- /dev/null
+++ b/.github/workflows/pr-harness.yaml
@@ -0,0 +1,12 @@
+name: PR Harness
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  harness:
+    permissions:
+      contents: read
+      pull-requests: read
+    uses: Cysharp/Actions/.github/workflows/pr-harness.yaml@main