diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0fbcf52..93092d1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,5 +29,7 @@ jobs:
           cache-dependency-path: package-lock.json
       - name: Install node modules
         run: npm install
+      - name: Presubmit check (e.g. lint, format)
+        run: npm run presubmit
       - name: Type-checking
         run: npm run ts
diff --git a/package.json b/package.json
index a98b070..fa4668b 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,9 @@
     "db:generate": "drizzle-kit generate",
     "db:push": "drizzle-kit push",
     "db:studio": "drizzle-kit studio",
+    "prettier:check": "npx prettier --check .",
+    "prettier": "npx prettier --write .",
+    "presubmit": "npm run prettier:check && npm run lint",
     "test": "vitest run",
     "test:watch": "vitest",
     "test:ui": "vitest --ui",