diff --git a/research-wiki/plans/2026-08-24-issue15-telemetry-pool-lifecycle.md b/research-wiki/plans/2026-08-24-issue15-telemetry-pool-lifecycle.md
index fea2f70..4b77bc7 100644
--- a/research-wiki/plans/2026-08-24-issue15-telemetry-pool-lifecycle.md
+++ b/research-wiki/plans/2026-08-24-issue15-telemetry-pool-lifecycle.md
@@ -363,7 +363,7 @@ Codex 给的 `_failed` 分布数字(源码 5 处 / 测试断言 8 处)与本地
 | T6 | `bfeda5b` | `test: prove on real PG that the pool never preconnects` |
 | T7 ⓪ | `69a5b5f` | `test: pin the cooldown assertion to a fake clock`(T5 留下的一处间歇红: 快照里的 `retry_after_s` 是时间差,却用真实时钟断言 60.0) |
 | T7 ① | `7834d75` | `feat: export TelemetryStatus from the package root` |
-| T7 ② | 本文件所在的这次提交 | `docs: record the telemetry pool semantics and ownership rule` |
+| T7 ② | `4e1f09d` | `docs: record the telemetry pool semantics and ownership rule`(本表的 hash 由紧随其后的一次 bookkeeping 提交补齐) |
 
 T7 分两次提交是因为它含一处**公共 API 面**改动(`TelemetryStatus` 进顶层 `__all__`,决策见下),与纯文档的回滚粒度不同。