エージェントを設定する

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

for await (const message of query({
  prompt: "Summarize the open TODOs in this repo",
  options: {
    model: "claude-sonnet-5",
    allowedTools: ["Read", "Glob", "Grep"],
    maxTurns: 8,
    cwd: "/path/to/repo",
  },
})) {
  if (message.type === "result" && message.subtype === "success" && !message.is_error) {
    console.log(message.result);
  }
}

import asyncio

from claude_agent_sdk import ClaudeAgentOptions, ResultMessage, query

async def main():
    options = ClaudeAgentOptions(
        model="claude-sonnet-5",
        allowed_tools=["Read", "Glob", "Grep"],
        max_turns=8,
        cwd="/path/to/repo",
    )

    async for message in query(
        prompt="Summarize the open TODOs in this repo",
        options=options,
    ):
        if isinstance(message, ResultMessage) and not message.is_error:
            print(message.result)

asyncio.run(main())

const options = {
  model: "claude-fable-5",
  fallbackModel: "claude-opus-5,claude-sonnet-5",
};

options = ClaudeAgentOptions(
    model="claude-fable-5",
    fallback_model="claude-opus-5",
)

const options = {
  env: { ...process.env, ANTHROPIC_BASE_URL: "https://gateway.example.com" },
};

options = ClaudeAgentOptions(
    env={"ANTHROPIC_BASE_URL": "https://gateway.example.com"},
)

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

function userMessage(text: string): SDKUserMessage {
  return { type: "user", message: { role: "user", content: text }, parent_tool_use_id: null };
}

// Hold the second prompt until the setters have run.
let startSecondTurn!: () => void;
const secondTurnReady = new Promise<void>((resolve) => {
  startSecondTurn = resolve;
});

async function* turnPrompts(): AsyncGenerator<SDKUserMessage, void> {
  yield userMessage("Reply with exactly: ready");
  await secondTurnReady;
  yield userMessage("Reply with exactly: done");
}

const session = query({
  prompt: turnPrompts(),
  options: {
    model: "claude-sonnet-5",
  },
});

let turnModel = "";
let completedTurns = 0;

for await (const message of session) {
  if (message.type === "assistant") {
    turnModel = message.message.model;
  } else if (message.type === "result") {
    completedTurns += 1;
    if (completedTurns === 1) {
      console.log(`First turn model: ${turnModel}`);
      await session.setModel("claude-opus-5");
      await session.setPermissionMode("acceptEdits");
      startSecondTurn();
    } else {
      console.log(`Second turn model: ${turnModel}`);
      break;
    }
  }
}

import asyncio

from claude_agent_sdk import AssistantMessage, ClaudeAgentOptions, ClaudeSDKClient

async def main():
    options = ClaudeAgentOptions(model="claude-sonnet-5")

    async with ClaudeSDKClient(options=options) as client:
        await client.query("Reply with exactly: ready")
        first_model = ""
        async for message in client.receive_response():
            if isinstance(message, AssistantMessage):
                first_model = message.model

        await client.set_model("claude-opus-5")
        await client.set_permission_mode("acceptEdits")

        await client.query("Reply with exactly: done")
        second_model = ""
        async for message in client.receive_response():
            if isinstance(message, AssistantMessage):
                second_model = message.model

    print(f"First turn model: {first_model}")
    print(f"Second turn model: {second_model}")

asyncio.run(main())