Claude Agent SDK（Anthropic）

import anyio
from claude_agent_sdk import query, ClaudeAgentOptions, AssistantMessage, TextBlock, ToolUseBlock

async def main():
    async for message in query(
        prompt="读取当前目录下的 README.md 并总结内容",
        options=ClaudeAgentOptions(allowed_tools=["Read"]),
    ):
        if isinstance(message, AssistantMessage):
            for block in message.content:
                if isinstance(block, TextBlock):
                    print(block.text)
                elif isinstance(block, ToolUseBlock):
                    print(f"调用工具: {block.name}({block.input})")

anyio.run(main)

from claude_agent_sdk import tool, create_sdk_mcp_server

@tool("get_weather", "查询城市天气", {"city": str, "date": str})
async def get_weather(args):
    return {"content": [{"type": "text", "text": f"{args['city']} {args['date']}：晴，25°C"}]}

server = create_sdk_mcp_server(name="my-tools", version="1.0.0", tools=[get_weather])
# 在 options 中配置：allowed_tools=["mcp__my-tools__get_weather"]

pip install claude-agent-sdk

import anyio
from claude_agent_sdk import query, ClaudeAgentOptions, AssistantMessage, ResultMessage
from claude_agent_sdk import TextBlock, ToolUseBlock

async def main():
    print("Agent 启动，开始处理任务...")
    print("-" * 50)

    async for message in query(
        prompt="在当前目录创建一个 hello.txt，内容写 'Hello from Claude Agent SDK'",
        options=ClaudeAgentOptions(
            allowed_tools=["Write"],   # 只开放 Write 工具
            max_turns=3,               # 限制最大轮次，防止无限循环
        ),
    ):
        if isinstance(message, AssistantMessage):
            for block in message.content:
                if isinstance(block, TextBlock):
                    print(f"[思考] {block.text}")
                elif isinstance(block, ToolUseBlock):
                    print(f"[工具] {block.name} -> {block.input}")
        elif isinstance(message, ResultMessage):
            print(f"[完成] 任务结束")

    print("-" * 50)
    print("Agent 退出")

if __name__ == "__main__":
    anyio.run(main)

Agent 启动，开始处理任务...
--------------------------------------------------
[思考] 我来创建这个文件。
[工具] Write -> {'file_path': 'hello.txt', 'content': 'Hello from Claude Agent SDK'}
[思考] 文件 hello.txt 已创建完成。
[完成] 任务结束
--------------------------------------------------
Agent 退出

import anyio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

async def main():
    options = ClaudeAgentOptions(allowed_tools=["Read", "Bash"])

    async with ClaudeSDKClient(options=options) as client:
        # 第一轮：读取文件
        await client.query("读取当前目录的 README.md")
        async for msg in client.receive_response():
            print(msg)

        # 第二轮：基于上轮上下文继续操作
        await client.query("用一句话总结刚才读到的内容")
        async for msg in client.receive_response():
            print(msg)

anyio.run(main)