diff --git a/.github/workflows/quality-check.yaml b/.github/workflows/quality-check.yaml
new file mode 100644
index 0000000..dfff9d9
--- /dev/null
+++ b/.github/workflows/quality-check.yaml
@@ -0,0 +1,37 @@
+name: Code Quality
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  quality:
+    name: Lint, Type Check & Format
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
+      - name: Enable Corepack (pnpm)
+        run: corepack enable
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Run ESLint
+        run: pnpm lint
+
+      - name: Run TypeScript type check
+        run: pnpm type-check
+
+      - name: Run Prettier check
+        run: pnpm format:check