AI SDK Agents

Build autonomous agents with ToolLoopAgent: reusable model + tools + loop control.

Quick Start

Assume Zod v4.3.5 for schema typing.

import { ToolLoopAgent, tool } from 'ai';
import { anthropic } from '@ai-sdk/anthropic';
import { z } from 'zod';

const weatherAgent = new ToolLoopAgent({
  model: anthropic('claude-sonnet-4-20250514'),
  tools: {
    weather: tool({
      description: 'Get the weather in a location (F)',
      inputSchema: z.object({ location: z.string() }),