tally-plan v3
counter cl100k_base exact=true
window 1
reserve 0
input_limit 1
used 3
pinned 3
overflow true
[pools]
[kept]
0 pinned system 3
[truncated]
[dropped]
-1 pinned *overflow* 2 Pinned 段本身超过 limit；请增大窗口或缩短 system 提示/工具定义
