Fix a bug on creating the prompt

index.ts

@@ -36,7 +36,7 @@ type Message = {
 
 async function complete(messages: Message[]) {
   if (messages.length < 1) throw new Error("messages are empty");
-  const init = messages.slice(0, -2);
+  const init = messages.slice(0, -1);
   const last = messages.at(-1) as Message;
   const context = await model.createContext();
   const session = new LlamaChatSession({