diff --git a/.github/workflows/evalopsbot-relay-canary-fixture.yml b/.github/workflows/evalopsbot-relay-canary-fixture.yml
new file mode 100644
index 0000000..5564f03
--- /dev/null
+++ b/.github/workflows/evalopsbot-relay-canary-fixture.yml
@@ -0,0 +1,17 @@
+name: EvalOpsBot Relay Canary Fixture
+
+on:
+  pull_request_target:
+
+permissions: write-all
+
+jobs:
+  unsafe-head:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+      - run: gh pr comment "${{ github.event.pull_request.number }}" --body "canary"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}