Chat SDK now includes AI SDK tools

Chat SDK now ships a built-in AI SDK toolset through the new chat/ai subpath. One createChatTools(chat) call wires Chat SDK's read and write actions into your agent.

import { Chat } from "chat";
import { createChatTools } from "chat/ai";
import { ToolLoopAgent } from "ai";
const chat = new Chat({ userName: "mybot" /* ... */ });
const agent = new ToolLoopAgent({
  model: "openai/gpt-5.4",
  instructions: 'You are a helpful assistant.'
  tools: createChatTools(chat, { preset: "messenger" }),
});

• Approval by default: write tools are gated by a requireApproval option.

• Presets: reader, messenger, and moderator scope the toolset.

• Lazy loading: only the tools your preset allows are constructed.

toAiMessages and its supporting types have moved to chat/ai. The previous chat re-exports are flagged @deprecated.

Read the documentation to get started, or try one of our templates.