diff --git a/docs/history/0.2.2.md b/docs/history/0.2.2.md
index 77dafbc9..1a065c8d 100644
--- a/docs/history/0.2.2.md
+++ b/docs/history/0.2.2.md
@@ -19,7 +19,7 @@ pull slides, the champagne's bar, closed eyes, late attack clips, the HP-bar rea
 cues, atlas refreshes, 梓兰's frost) → §27.36–§27.46; the interface (device tips, the settings button, the shop fold,
 spectators, the top-bar capsule, the empty new shop slot) → §27.47–§27.52; voices → §27.53–§27.54; the statistics page
 → §27.55; potential and training (潜能 / 练度) and the 干员调配 list → §27.56–§27.59; the 自选 picker's Esc → §27.60;
-whole-frame attack intervals and SP costs (PR #402) → §27.61; the drag snap → §27.62.
+whole-frame attack intervals and SP costs (PR #402) → §27.61; the drag snap → §27.62; items that grant nothing say why → §27.63.
 
 Decisions of the owner, 2026-10-08 (round 22, from community reports, GitHub and research into the official rules):
 潜能 and the 自持有 练度 bonus are set per operator in 干员调配, defaults 潜能 6 and 精英2 Lv.60 (official: the account's
@@ -1560,3 +1560,18 @@ Notes for the integrator
   boss-field tile, mirrored on the right. Both browser extensions fail on the parent. test/docs-consistency.test.js (the
   code calls `dragStandTile`, DESIGN and PLAYING describe it). Docs: docs/PLAYING.md §4, README.md,
   docs/design/client.md §9 / §10, the app.js / drag.js / tune.js comments.
+
+### 27.63 拟态物质 / 简易通讯机 / 寻呼模块 that grant nothing say why (GitHub #401 by FrogThai; the owner's OK of 2026-10-09) — `match/builtinMeta.js toastNothing`, `sim/content/items/meta.js` (寻呼模块)
+
+- **Seen**: #401 — two players, the field holds an elite and two normal 溯光星源, 拟态物质 on a normal one 「无事发生」.
+  Correct by the rules: the Ⅵ阶 pool holds 5 copies of an operator for the whole team (community-measured, §25.13.1;
+  an elite takes 3), so 1 elite + 2 normal own all 5 and the item's third copy cannot come (GitHub #207: never another
+  operator instead) — but the item was destroyed without a word. The same silence for 简易通讯机 / 寻呼模块 when no
+  operator of the bond qualifies (缪尔赛思's 调和 below shop level 6, community report 45 of feedback #5).
+- **Official**: the items' text — 「装备时销毁，若已拥有至少2名该初始干员，则再获得1名该初始干员；否则随机获得1名同盟约初始干员」 — has no
+  fallback; the item is destroyed on equip either way. The owner noted the confusion: OPERATORS have the shared pool;
+  EQUIPMENT has no per-item cap.
+- **Now**: when such an item grants nothing, a warn toast: 「{who}：卡池中已没有{name}」 (拟态物质 with 2 copies owned and
+  none left) or 「{who}：没有可获得的同盟约干员」; the item is still destroyed. en / ja / ko / zh-TW.
+- **Golden**: unchanged. **Tests**: test/content/items.test.js (the #207 cases assert the toast; a new case: one 缪尔赛思,
+  her pool taken → the bond toast), test/content/feedback5-cb1-pins.test.js 45 (the toast below level 6, none at 6).