404 for no such agent

server/worker.ts

@@ -34,6 +34,7 @@ app.post("/api/chat/:agent_name", async (c) => {
   const agentName = c.req.param("agent_name");
   const agent = agentsByName[agentName];
   if (!agent) {
+    c.status(404);
     return c.json({ error: `No such agent: ${agentName}` });
   }
   console.log(input);