diff --git a/.ua/backlog.json b/.ua/backlog.json
index fec2207..346dc13 100644
--- a/.ua/backlog.json
+++ b/.ua/backlog.json
@@ -3023,6 +3023,15 @@
       "status": "done",
       "domain": "visual",
       "notes": ""
+    },
+    {
+      "id": "g293",
+      "title": "把浮层定位口径写进 Agent 约定",
+      "motivation": "g289–g291 连着三轮在修同一个缺陷：浮层只在打开时算一次翻转，滚动后就错位。修完了却没沉淀成规则——下一个新组件（或新 Agent）照样会写出「只在 open 时算一次」的版本，等于再把欠账复制一份。这类「已经用三轮纠正过的写法」必须变成入库门槛，否则只是把坑往后推。",
+      "acceptance": "AGENTS.md《贡献新组件的强制约定》新增第 7 条：打开时 flip / flipSide 算一次、展开期间 trackShift 重算、收起调释放函数摘监听，并点明「只在打开时算一次」的后果；npm run check 全绿",
+      "status": "done",
+      "domain": "tooling",
+      "notes": ""
     }
   ]
 }
diff --git a/.ua/iterations.log b/.ua/iterations.log
index 3bdec0c..39caf68 100644
--- a/.ua/iterations.log
+++ b/.ua/iterations.log
@@ -337,3 +337,4 @@
 {"ts":"2026-10-26T23:20:06+08:00","id":"g290","result":"done","commit":"9e72607","summary":"position.ts 新增 trackShift（捕获 scroll + resize、rAF 节流、可撤销帧），tooltip 改用它去掉内联重复，select 展开期间接上"}
 {"ts":"2026-10-26T23:20:55+08:00","id":"g291","result":"done","commit":"f88e57f","summary":"autoComplete/cascader/colorPicker/datePicker/timePicker/menu/multiSelect 七处弹层统一接 trackShift，收起即摘监听"}
 {"ts":"2026-10-26T23:21:30+08:00","id":"g292","result":"done","commit":"346d514","summary":"toast 满 4 条后最早一条改调 dismiss()（淡出后移除），与手动关闭同一条路径"}
+{"ts":"2026-10-26T23:22:14+08:00","id":"g293","result":"done","commit":"77c4ed8","summary":"AGENTS 强制约定补第 7 条：浮层打开算一次 + 展开期 trackShift + 收起摘监听"}