Assisted-by: Claude Opus 4.6 via pi

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8760ec1..46b241a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,6 +27,17 @@ jobs:
           bundler-cache: true
       - run: bundle exec rake test check
 
+  zizmor:
+    name: Audit workflows
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read # checkout
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        with:
+          persist-credentials: false
+      - uses: zizmorcore/zizmor-action@71321a20a9ded102f6e9ce5718a2fcec2c4f70d8 # v0.5.2
+
   build:
     name: Build
     needs: test