Anthropic发文论子Agent取舍，与Kimi K3.1 Pro额度争议的呼应

Anthropic发布文章《Building agents: When to fold subagents into your main agent loop》，认为对绝大多数任务，带技能的单Agent质量优于多个子Agent分工，且成本和延迟更低，并开源了single-agent-loop-kit工具。