You spawned 4 sub-agents. One died 20 minutes ago. You're still waiting. Overseer watches them so you don't have to — zero tokens, pure OS-level process checks. No polling loops, no wasted heartbeats.

你创建了四个子代理，其中一个已于20分钟前死亡。你仍在等待。监督者代你监控它们——无需消耗任何令牌，仅通过操作系统级别的进程检查实现。无轮询循环，无浪费的心跳信号。