diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
new file mode 100644
index 0000000..c637988
--- /dev/null
+++ b/.github/workflows/pull_request.yml
@@ -0,0 +1,17 @@
+name: Code quality
+
+on:
+  pull_request:
+
+jobs:
+  quality:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Biome
+        uses: biomejs/setup-biome@v2
+        with:
+          version: latest
+      - name: Run Biome
+        run: biome ci ./src
diff --git a/src/server.ts b/src/server.ts
index 9982069..8b343d1 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -71,14 +71,14 @@ client.on(Events.MessageCreate, async (message) => {
       .map((message) =>
         message.author.id === env.DISCORD_CLIENT_ID
           ? {
-            role: "assistant",
-            content: message.content,
-          }
+              role: "assistant",
+              content: message.content,
+            }
           : {
-            role: "user",
-            content: message.content,
-            name: message.author.username,
-          },
+              role: "user",
+              content: message.content,
+              name: message.author.username,
+            },
       ),
   ];