diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
new file mode 100644
index 00000000..e5fecc38
--- /dev/null
+++ b/.github/workflows/checks.yml
@@ -0,0 +1,23 @@
+name: Checks
+
+on:
+  pull_request:
+
+jobs:
+  format:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Prepare
+        uses: ./.github/actions/prepare
+      - name: Lint
+        run: npm run format:check
+
+  may-merge:
+    needs: ["format"]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cleared for merging
+        run: echo OK
diff --git a/package.json b/package.json
index 6162cda0..0b923d82 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,8 @@
     "write-translations": "docusaurus write-translations",
     "write-heading-ids": "docusaurus write-heading-ids",
     "typecheck": "tsc",
-    "format": "prettier . --write ."
+    "format": "prettier . --write .",
+    "format:check": "prettier --check ."
   },
   "dependencies": {
     "@docusaurus/core": "^3.8.1",