天天用 claude code 的人都撞过五小时用量墙，切号还要重新登录，正在跑的 session 也会丢。 我搞了两个工具：clauth fork 在活跃 session 底下做无感热切换和无人值守自动轮换， 菜单栏的 ccsbar 把每个账号的余量、预报和健康状况摆在明面上。这篇讲这套东西是怎么搭起来的。

I run several Claude accounts and kept hitting the 5-hour wall mid-session. Switching meant logging out. So I built a daemon that hot-swaps the active login under a running session — and the whole thing turned on one non-obvious fact about how macOS stores an auth token.