feedback5 R19E: the 鸭爵 strategy's swapped-in 流泪小子 hides again 1 s after a block ends instead of the official 0 s — a deliberate deviation, the owner's decision of 2026-10-07 (「要不等待个1秒这样再重新隐匿」); a separate commit the integrator can drop; golden: 1 scenario moves (matches solo-HARD-2)

content/enemies/archetypes.js stealth: an enemy spawned with the band's swap tag 'duck' (content/bands/meta.js
duckReplace) gets its 隐匿 back no sooner than DUCK_STEALTH_RESTORE (1 s, content/enemies/helpers.js) after a block ends
— in practice 流泪小子 (enemy_2034_sythef_2), the only one of the four swaps with 隐匿, officially 0 s (PRTS 流泪小子
「隐匿（解除阻挡0秒后恢复）」). The same enemy anywhere else keeps 0 s: the bounty card's 流泪小子 (enemy_2034_sythef), an
untagged spawn; a 3 s 隐匿 stays 3 s; a copy leaked into 联防 keeps its tag and the 1 s. After each strike (its stunned
blocker lets go) it is now revealed through its 0.8 s post-strike stand and 0.2 s of walking.

Measured, 8 seeds each — leaked / HP left / revealed s per battle; W = 3 elite melee in a lane + an elite sniper vs the
R6 wave's ground enemies with one swapped 流泪小子, B = 8 elites on 战场#01 vs the whole R6 wave with one swap: before
the clip fix W 5/8, 42 %, 2.3 / B 8/8, 47 %, 3.2; after it W 5/8, 31 %, 2.6 / B 8/8, 58 %, 2.5; with the 1 s W 4/8,
31 %, 4.0 / B 8/8, 56 %, 5.5. Options for the owner (measured on the fixed engine, not built): 2 s W 4/8, 31 %, 5.4 /
B 8/8, 46 %, 8.5; 3 s (the general 隐匿 rule) W 4/8, 31 %, 6.4 / B 8/8, 39 %, 11.5; a 1.5 s stun on the copy (below its
2 s interval, so its blocker takes it over again) W 4/8, 2 %, 4.0 / B 4/8, 6 %, 5.5; a 1 s stun: knocked out in all 16;
the 1 s delay + a 2 s stun W 4/8, 21 %, 5.1 / B 5/8, 26 %, 8.1. Worse: half speed while 隐匿; a stunned operator that
keeps blocking it (pins that operator for good).

Golden: matches solo-HARD-2 — its bot holds 鸭爵; the swapped 流泪小子 of round 13 is free and revealed for 49 ticks in
its 1 s windows (the round-12 one is never released by a block), so the match parts at round 13 (a victory instead of
a defeat); the other 282 scenarios unchanged.

Tests: test/content/feedback5-duck-restealth.test.js (3; the swap's 1 s and the band path fail on the parent, the 0 s
guard passes on both); enemies_bosses, feedback2-surtr-stealth, feedback1-ducklord, feedback5-attack-clip-rest pass.
Docs: CHANGELOG 0.2.0 有意与官方不同的调整 (and the 核实后不是问题 line points to it), docs/history/0.2.0.md §25.22.6,
docs/PLAYING.md, docs/SIM.md, design/engine.md.

server/sim/content/bands/meta.js

@@ -373,7 +373,9 @@ K.preparation_start_add_special_goods_every_n_round = (ps) => ({
 // share taken over that half [ASSUMED: "你和队友遭遇的敌人" — the enemies heading for the player's own protection point;
 // each official client simulates its own battle, docs/research/08 appendix A]. The originals never exist, so none of
 // their death / kill / leak effects happen. Reaching the protection point costs 1 LP ("但进入保护目标点将减少1点目标生命值":
-// the enemies' data lpr, tools/build-data.mjs).
+// the enemies' data lpr, tools/build-data.mjs). The swaps carry the spawn tag 'duck': their 隐匿 (流泪小子) comes back no
+// sooner than 1 s after a block ends, not the official 0 s (content/enemies/helpers.js DUCK_STEALTH_RESTORE — the owner's
+// decision of 2026-10-07, a deliberate deviation).
 
 export const DUCK_BAND = 'band_ducklord';
 /** "击倒这些敌人者获得1资金奖励" (the blackboard's `count` is 1 too). */

server/sim/content/enemies/archetypes.js

@@ -3,9 +3,9 @@
 // unbalanced, artsBarrier, husk, statue, bleed, pollution, dmgZone, skill(), blinkForward … and the archetype kits
 // reused by several keys (kitEp, kitTimes …).
 
-import { MOVE_SCALE, COLS } from '../../constants.js';
+import { MOVE_SCALE, COLS, STEALTH_RESTORE } from '../../constants.js';
 import {
-  HUSK_REBIRTH, BOOM_RADIUS, POLLUTION_INTERVAL, STEALTH_RESTORE_BY_KEY, nthOf, stOf, safe, num, T, elem, hurt,
+  HUSK_REBIRTH, BOOM_RADIUS, POLLUTION_INTERVAL, STEALTH_RESTORE_BY_KEY, DUCK_STEALTH_RESTORE, nthOf, stOf, safe, num, T, elem, hurt,
   areaAllies, areaAlliesInTiles, zone, spawnChildren, stepToward, setHits, hitCount, setForm, absorbArts, auraBuff,
 } from './helpers.js';
 
@@ -14,11 +14,13 @@ import {
 
 /**
  * 隐匿: permanent stealth. Blocked it is lifted; it hides again STEALTH_RESTORE s after the block ends, or after its own
- * "（解除阻挡N秒后恢复）" (STEALTH_RESTORE_BY_KEY → buff `data.stealthRestore`; Battle._stealthSwitch).
+ * "（解除阻挡N秒后恢复）" (STEALTH_RESTORE_BY_KEY → buff `data.stealthRestore`; Battle._stealthSwitch) — a 鸭爵 swap (tag
+ * 'duck') no sooner than DUCK_STEALTH_RESTORE s (the owner's decision of 2026-10-07, a deliberate deviation).
  */
 const stealth = () => ({
   spawn(b, e, a, ab) {
-    const n = STEALTH_RESTORE_BY_KEY[ab.key];
+    let n = STEALTH_RESTORE_BY_KEY[ab.key];
+    if (e.tag === 'duck' && (n ?? STEALTH_RESTORE) < DUCK_STEALTH_RESTORE) n = DUCK_STEALTH_RESTORE;
     b.addBuff(e, { key: 'ab:stealth', flags: { stealth: true }, persist: true, data: n != null ? { stealthRestore: n } : {} });
   },
 });

server/sim/content/enemies/helpers.js

@@ -44,6 +44,15 @@ const STEALTH_RESTORE_BY_KEY = Object.freeze({
   enemy_1283_sgkill_2: 1,    // 家族暗影灭迹人
 });
 
+/**
+ * 隐匿 of the 鸭爵 strategy's swapped-in enemies (spawn tag 'duck': content/bands/meta.js duckReplace) comes back no sooner
+ * than this many seconds after a block ends — in practice 流泪小子 (enemy_2034_sythef_2, the only one of the four with 隐匿;
+ * officially 0 s, STEALTH_RESTORE_BY_KEY). A deliberate deviation from the official game: the owner's decision of
+ * 2026-10-07 「鸭爵策略产生的泪眼汪汪…要不等待个1秒这样再重新隐匿」 (community report of 2026-10-07, GitHub #214). The same
+ * enemy anywhere else — the 流泪小子 of a bounty card (enemy_2034_sythef), a test spawn — keeps the official time.
+ */
+const DUCK_STEALTH_RESTORE = 1;
+
 /** Splash radius (中点判定 around the target) of 烹泉 / 沏虹's attack (PRTS 天赋 "普通攻击对目标对及目标周围半径1.0范围内的所有
  *  我方单位造成法术普通伤害（无视迷彩，不可对空）") and of 集团军重型火炮's shell (PRTS "对目标半径1.0范围内的所有我方单位造成攻击力
  *  100%的物理伤害（此弹道会强制击中主目标，碰撞无视迷彩，不可对空）"). */
@@ -387,6 +396,6 @@ const onTerrain = (b, u, terrain) => { const [r, c] = tileOf(u); return b.grid.t
 
 // used by the other enemy modules (content/enemies.js and content/enemies/*.js)
 export {
-  BOOM_RADIUS, POLLUTION_INTERVAL, STEALTH_RESTORE_BY_KEY, TEA_SPLASH_RADIUS, SHELL_SPLASH_RADIUS, stOf, safe, dispatch,
+  BOOM_RADIUS, POLLUTION_INTERVAL, STEALTH_RESTORE_BY_KEY, DUCK_STEALTH_RESTORE, TEA_SPLASH_RADIUS, SHELL_SPLASH_RADIUS, stOf, safe, dispatch,
   num, auraBuff, watchDeaths, onTerrain,
 };