@@ -0,0 +1,21 @@
+name: PoC - tag trigger fires from arbitrary branch
+on:
+  push:
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+*'
+permissions: read-all
+jobs:
+  proof:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Print trigger context
+        run: |
+          echo "SHA:      ${{ github.sha }}"
+          echo "Ref:      ${{ github.ref }}"
+          echo "Ref name: ${{ github.ref_name }}"
+          echo "Event:    ${{ github.event_name }}"
+          echo ""
+          echo "The workflow file that just ran was defined on the tagged commit."
+          echo "The tagged commit lives on branch poc/tag-trigger-any-branch — NOT a release branch."
+          echo "This proves the tag-push trigger fires regardless of what branch the tagged commit is on,"
+          echo "and that the workflow file used is the one at the tagged commit, not master's."