Agent SDK でプログラマティックに使う

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

for await (const msg of query({
  prompt: "src/ の TODO コメントを一覧して",
  options: {
    cwd: process.cwd(),
    permissionMode: "plan",
  },
})) {
  if (msg.type === "result") console.log(msg.result);
}

import { tool, createSdkMcpServer } from "@anthropic-ai/claude-agent-sdk";
import { z } from "zod";

const getWeather = tool({
  name: "get_weather",
  description: "都市名から天気を返す",
  inputSchema: z.object({ city: z.string() }),
  handler: async ({ city }) => fetchWeather(city),
});

export const server = createSdkMcpServer({ tools: [getWeather] });

import { ClaudeSDKClient } from "@anthropic-ai/claude-agent-sdk";

const client = new ClaudeSDKClient({
  cwd: process.cwd(),
  continueLatest: true,  // 直前のセッションを継承
});

// 任意の時点でフォーク（履歴を残しつつ別 ID で分岐）
const forkId = await client.forkSession();
console.log("forked:", forkId);

for await (const msg of query({ prompt, options: { stream: true } })) {
  if (msg.type === "assistant") process.stdout.write(msg.delta ?? "");
  if (msg.type === "tool_use") console.log("\n[tool]", msg.name);
  if (msg.type === "result") console.log("\n[done]", msg.usage);
}