Claude Agent SDK

import { query } from '@anthropic-ai/claude-agent-sdk';

const result = query({
  prompt: 'List all TypeScript files',
  options: {
    model: 'claude-sonnet-4-5-20250929',
    cwd: '/path/to/project'
  }
});

for await (const message of result) {
  if (message.type === 'result') {
    console.log(message.result, message.total_cost_usd);
  }
}

// Core imports
import {
  query,
  type Options,
  type Query,
  type SDKMessage,
  type SDKResultMessage,
  type AgentDefinition,
  type PermissionResult,
  type HookCallback
} from '@anthropic-ai/claude-agent-sdk';

// V2 API (unstable)
import {
  unstable_v2_createSession,
  unstable_v2_resumeSession,
  unstable_v2_prompt,
  type SDKSession
} from '@anthropic-ai/claude-agent-sdk';

// MCP tools
import {
  createSdkMcpServer,
  tool,
  type McpServerConfig
} from '@anthropic-ai/claude-agent-sdk';