The Agentic Loop智能体循环

1messages = [{"role": "user", "content": prompt}]2 3while True:4    resp = client.messages.create(5        model="claude-sonnet-4-6",6        tools=tools,7        messages=messages,8    )9    messages.append({"role": "assistant", "content": resp.content})10 11    if resp.stop_reason == "end_turn":12        break13 14    tool_results = []15    for block in resp.content:16        if block.type == "tool_use":17            output = run_tool(block.name, block.input)18            tool_results.append({19                "type": "tool_result",20                "tool_use_id": block.id,21                "content": output,22            })23    messages.append({"role": "user", "content": tool_results})