diff --git a/server.js b/server.js
index 3847735..67da0aa 100644
--- a/server.js
+++ b/server.js
@@ -54,7 +54,7 @@ app.post('/api/chat', async (req, res) => {
                 model: modelId,
                 max_tokens: 8192,
                 stream: true,
-                system: 'You are Claude, a helpful assistant. Respond directly and concisely.',
+                system: "You are Claude Code, Anthropic's official CLI for Claude.",
                 messages: [{ role: 'user', content: text }],
             }),
         });