diff --git a/.ua/backlog.json b/.ua/backlog.json
index baa9922..c1353fe 100644
--- a/.ua/backlog.json
+++ b/.ua/backlog.json
@@ -458,8 +458,8 @@
       "title": "verify 增加 backlog 与 iterations.log 交叉校验",
       "motivation": "lint-iterations 只校验行格式，无法发现『条目置 done 但无留痕』或『留痕指向不存在的条目』",
       "acceptance": "ua.js 新增交叉校验并挂进 cmdVerify：每条 done 条目必须在 iterations.log 有 result=done 记录，每条日志 id 必须在 backlog 存在；人为注入违规时 verify 退出码 1；npm run check 全绿",
-      "status": "open",
-      "notes": "自补：工具链改进方向"
+      "status": "done",
+      "notes": "cmdVerify 增加 checkIterations：done 条目必须有 done 留痕、留痕 id 必须存在于 backlog；行格式仍归 lint-iterations；实测注入幽灵 id zz99 后 verify 报 1 violation 退出码 1，还原后复绿；AGENTS.md 门禁说明同步补一句"
     },
     {
       "id": "g13",
diff --git a/.ua/iterations.log b/.ua/iterations.log
index 6264c18..1223210 100644
--- a/.ua/iterations.log
+++ b/.ua/iterations.log
@@ -55,3 +55,4 @@
 {"ts":"2026-10-26T10:20:58+08:00","id":"g08","result":"done","commit":"0e385cd","summary":"新增 segmented 分段控制器：胶囊分段 + 滑动滑块 + 键盘导航，manifest/README/llms-full 同步"}
 {"ts":"2026-10-26T10:23:31+08:00","id":"g09","result":"done","commit":"d8d45fc","summary":"新增 descriptions 描述列表：label:value 网格 + 列数变量化 + 窄屏单列 + bordered 表格形态"}
 {"ts":"2026-10-26T10:25:17+08:00","id":"g10","result":"done","commit":"2f8ccb6","summary":"新增 statistic 统计数值：rAF 滚动过渡 + 千分位精度 + 涨红跌绿趋势，减弱动效直落终值"}
+{"ts":"2026-10-26T10:27:10+08:00","id":"g12","result":"done","commit":"1b75fb4","summary":"verify 交叉校验 backlog done 与 iterations.log 留痕双向一致，注入违规即拦截"}