diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..e980cdc
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,25 @@
+name: ci
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  ci:
+    runs-on: macos-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Deno
+        uses: denoland/setup-deno@v2
+
+      - name: Format
+        run: deno fmt --check
+
+      - name: Lint
+        run: deno lint
+
+      - name: Test
+        run: deno task test
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index e094d33..2c604f2 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: read
-      id-token: write # The OIDC ID token is used for authentication with JSR.    
+      id-token: write # The OIDC ID token is used for authentication with JSR.
     steps:
       - uses: actions/checkout@v4
-      - run: npx jsr publish
\ No newline at end of file
+      - run: npx jsr publish