diff --git a/.github/workflows/prettier-check.yml b/.github/workflows/prettier-check.yml
new file mode 100644
index 0000000..fbb3d30
--- /dev/null
+++ b/.github/workflows/prettier-check.yml
@@ -0,0 +1,15 @@
+name: Prettier Check
+
+on: [push, pull_request]
+
+jobs:
+  prettier-check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - run: npm ci
+      - run: npm run check-format
diff --git a/package.json b/package.json
index 5d0af74..f627bd5 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "main": "dist/index.js",
   "scripts": {
     "format": "npx prettier --write .",
+    "check-format": "npx prettier --check .",
     "build": "tsc",
     "prepublish": "npm run build"
   },