diff --git a/package.json b/package.json
index e2ee5a2..bde8bb5 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "chronicle-of-the-immortal-clan",
   "productName": "仙途家族志",
-  "version": "0.1.6",
+  "version": "0.1.7",
   "description": "修仙 · 家族 · 经营 · 战斗 模拟器",
   "main": "./out/main/index.js",
   "author": "MetonaTeam",
diff --git a/src/renderer/game/data/registry.ts b/src/renderer/game/data/registry.ts
new file mode 100644
index 0000000..79d5443
--- /dev/null
+++ b/src/renderer/game/data/registry.ts
@@ -0,0 +1,87 @@
+import { ITEMS, ARTIFACT_POWER } from './items'
+import { TECHNIQUES } from './techniques'
+import { BUILDINGS } from './buildings'
+import { MISSIONS, ENEMIES } from './secrets'
+import { NPCS } from './npcs'
+import { EVENTS } from './events'
+import { POSTS } from './posts'
+import { TRAITS } from './traits'
+import { ROOT_GRADES, ROOT_GRADE_NAMES, ELEMENT_LIST } from './elements'
+import { MAJORS, MAJOR_ORDER } from './realms'
+
+export interface DataPack {
+  items: typeof ITEMS
+  artifacts: typeof ARTIFACT_POWER
+  techniques: typeof TECHNIQUES
+  buildings: typeof BUILDINGS
+  missions: typeof MISSIONS
+  enemies: typeof ENEMIES
+  npcs: typeof NPCS
+  events: typeof EVENTS
+  posts: typeof POSTS
+  traits: typeof TRAITS
+  rootGrades: typeof ROOT_GRADES
+  rootGradeNames: typeof ROOT_GRADE_NAMES
+  elements: typeof ELEMENT_LIST
+  majors: typeof MAJORS
+  majorOrder: typeof MAJOR_ORDER
+}
+
+/** 默认包：与库内静态数据**同引用**（保证确定性指纹不变）；未来 MOD 通过注入覆盖 */
+export const DEFAULT_PACK: DataPack = {
+  items: ITEMS,
+  artifacts: ARTIFACT_POWER,
+  techniques: TECHNIQUES,
+  buildings: BUILDINGS,
+  missions: MISSIONS,
+  enemies: ENEMIES,
+  npcs: NPCS,
+  events: EVENTS,
+  posts: POSTS,
+  traits: TRAITS,
+  rootGrades: ROOT_GRADES,
+  rootGradeNames: ROOT_GRADE_NAMES,
+  elements: ELEMENT_LIST,
+  majors: MAJORS,
+  majorOrder: MAJOR_ORDER
+}
+
+/**
+ * 数据包注册表：默认 `pack()` 返回 DEFAULT_PACK（引用共享）。
+ * setPack(partial) 覆写后立即生效；resetPack() 回到默认。返回的数据包指纹可用于版本校验。
+ */
+export class DataPackRegistry {
+  private data: DataPack = DEFAULT_PACK
+
+  current(): DataPack {
+    return this.data
+  }
+
+  override(partial: Partial<DataPack>): DataPack {
+    this.data = { ...DEFAULT_PACK, ...partial }
+    return this.data
+  }
+
+  reset(): DataPack {
+    this.data = DEFAULT_PACK
+    return this.data
+  }
+
+  fingerprint(): string {
+    const key = ['items', 'techniques', 'buildings', 'missions', 'events', 'npcs'] as const
+    let h = 7
+    for (const k of key) {
+      const o = this.data[k] as unknown as Record<string, unknown>
+      const len = Object.keys(o ?? {}).length
+      h = Math.imul(h ^ len, 31)
+    }
+    return (h >>> 0).toString(16)
+  }
+}
+
+export const PACK = new DataPackRegistry()
+
+/** 便捷读口（引擎唯一访问方式） */
+export function pack(): DataPack {
+  return PACK.current()
+}
diff --git a/src/renderer/game/engine/api.ts b/src/renderer/game/engine/api.ts
new file mode 100644
index 0000000..21b7d05
--- /dev/null
+++ b/src/renderer/game/engine/api.ts
@@ -0,0 +1,154 @@
+import type { World } from './world'
+import { WorldEventBus } from './world'
+import { YearlyReport, BattleLog, ChronicleEntry, SaveMeta } from '../types/domain'
+import { marketPrice, buyItem, sellItem, buyTechnique } from './market'
+import { sendMission, recallAll } from './systems/missions'
+import { giftNpc, makePeace, marryNpcFamily } from './systems/diplomacy'
+import { combatPowerOf } from './systems/combat'
+import type { LogKind } from './world'
+import { computeLegacy, resolveLegacy, LegacyArch } from '../core/legacy'
+import { yearAxis, AxisCell } from '../core/yearaxis'
+import { PACK } from '../data/registry'
+
+export type ActName =
+  | 'head.set'
+  | 'member.meditate'
+  | 'member.technique'
+  | 'member.equip'
+  | 'member.pill'
+  | 'member.advance'
+  | 'member.marry'
+  | 'member.post'
+  | 'estate.build'
+  | 'estate.upgrade'
+  | 'estate.rite'
+  | 'estate.sutra'
+  | 'market.buy'
+  | 'market.sell'
+  | 'market.tech'
+  | 'craft.pill'
+  | 'diplomacy.gift'
+  | 'diplomacy.peace'
+  | 'diplomacy.taunt'
+  | 'diplomacy.marry'
+  | 'expedition.send'
+  | 'expedition.recall'
+  | 'legacy.resolve'
+
+export interface ActPayload {
+  memberId?: string
+  targetId?: string
+  post?: string
+  item?: string
+  pill?: string
+  tech?: string
+  building?: string
+  npcId?: string
+  stones?: number
+  mission?: string
+  squad?: string[]
+  count?: number
+}
+
+export const ACT_CATALOG: Record<ActName, { desc: string; fn: (w: World, p: ActPayload) => boolean }> = {
+  'head.set': { desc: '册立家主', fn: (w, p) => (p.memberId ? (w.assignHead(p.memberId), true) : false) },
+  'member.meditate': { desc: '闭关/出关', fn: (w, p) => (p.memberId ? (w.setMeditation(p.memberId, !!p.count), true) : false) },
+  'member.technique': { desc: '传功', fn: (w, p) => (p.memberId && p.tech ? (w.giveTechnique(p.memberId, p.tech), true) : false) },
+  'member.equip': { desc: '装备法宝', fn: (w, p) => (p.memberId && p.item ? (w.equip(p.memberId, p.item), true) : false) },
+  'member.pill': { desc: '服丹', fn: (w, p) => (p.memberId && p.pill ? (w.takePill(p.memberId, p.pill), true) : false) },
+  'member.advance': { desc: '冲关', fn: (w, p) => (p.memberId ? (w.assistedBreakthrough(p.memberId), true) : false) },
+  'member.marry': { desc: '指婚', fn: (w, p) => (p.memberId && p.targetId ? w.marryTo(p.memberId, p.targetId) : false) },
+  'member.post': { desc: '任职/卸任', fn: (w, p) => (p.memberId ? w.assignPost(p.memberId, p.post) : false) },
+  'estate.build': { desc: '营建', fn: (w, p) => (p.building ? w.build(p.building) : false) },
+  'estate.upgrade': { desc: '升级', fn: (w, p) => (p.building ? w.upgrade(p.building) : false) },
+  'estate.rite': { desc: '祭祖', fn: (w) => w.ancestralRite() },
+  'estate.sutra': { desc: '求经', fn: (w) => w.seekSutra() },
+  'market.buy': { desc: '购货', fn: (w, p) => (p.item ? buyItem(w, p.item, p.count ?? 1) : false) },
+  'market.sell': { desc: '售货', fn: (w, p) => (p.item ? sellItem(w, p.item, p.count ?? 1) : false) },
+  'market.tech': { desc: '购法帖', fn: (w, p) => (p.tech ? buyTechnique(w, p.tech, p.stones ?? 0) : false) },
+  'craft.pill': { desc: '炼丹', fn: (w, p) => (p.item === 'ningyuan' ? w.craftPill('ningyuan') : w.craftPill('qiyuan')) },
+  'diplomacy.gift': { desc: '赠礼', fn: (w, p) => (p.npcId ? giftNpc(w, p.npcId, p.stones ?? 0) : false) },
+  'diplomacy.peace': { desc: '议和', fn: (w, p) => (p.npcId ? makePeace(w, p.npcId) : false) },
+  'diplomacy.taunt': { desc: '寻衅', fn: (w, p) => (p.npcId ? w.tauntNpc(p.npcId) : false) },
+  'diplomacy.marry': { desc: '联姻', fn: (w, p) => (p.npcId ? marryNpcFamily(w, p.npcId) : false) },
+  'expedition.send': { desc: '遣队出征', fn: (w, p) => (p.mission ? sendMission(w, p.mission, p.squad ?? []) : false) },
+  'expedition.recall': { desc: '召回', fn: (w, p) => (p.memberId ? (recallAll(w, p.memberId), true) : false) },
+  'legacy.resolve': { desc: '落印定鼎', fn: (w) => (w.resolveLegacyNow(), true) }
+}
+
+export interface QueryResult {
+  [k: string]: unknown
+}
+
+export class GameFacade {
+  constructor(
+    public readonly world: World,
+    public readonly slot: number,
+    private bus?: WorldEventBus
+  ) {}
+
+  act(name: ActName, payload: ActPayload = {}): boolean {
+    const c = ACT_CATALOG[name]
+    if (!c) return false
+    return c.fn(this.world, payload)
+  }
+
+  query(ref: string): QueryResult {
+    const w = this.world
+    switch (ref) {
+      case 'family':
+        return { name: w.state.family.name, estate: w.state.family.estate, year: w.state.year, month: w.state.month, reputation: w.state.family.reputation, generation: w.state.family.generation }
+      case 'members':
+        return { list: w.aliveMembers().map((c) => ({ id: c.id, name: c.name, realm: `${c.realm.major}/${c.realm.minor}`, post: c.post ?? '', state: c.state, power: Math.round(combatPowerOf(w, c)) })) }
+      case 'legacy':
+        return resolveLegacy(w.state) as unknown as QueryResult
+      case 'yearAxis':
+        return { cells: yearAxis(w.state) as unknown as AxisCell[] }
+      case 'systems':
+        return { list: w.systemList() }
+      case 'finance':
+        return { stones: w.state.family.stones, accum: w.state.finance.accum, yearStats: w.state.yearStats }
+      default:
+        return {}
+    }
+  }
+
+  subscribe(on: (e: FacadeEvent) => void): () => void {
+    const bus: WorldEventBus = {
+      onLog: (kind: LogKind, text: string) => on({ type: 'log', kind, text, year: this.world.state.year, month: this.world.state.month }),
+      onChronicle: (entry: ChronicleEntry, important: boolean) => on({ type: 'chronicle', entry, important }),
+      onBattle: (log: BattleLog) => on({ type: 'battle', log }),
+      onPendingEvent: (id: string) => on({ type: 'pending', id }),
+      onGameOver: (reason: string) => on({ type: 'gameover', reason }),
+      onYearPaper: (report: YearlyReport) => on({ type: 'paper', report }),
+      onSystemChange: (id: string, enabled: boolean) => on({ type: 'sysChanged', id, enabled })
+    }
+    this.world.out.push(bus)
+    return () => {
+      const i = this.world.out.indexOf(bus)
+      if (i >= 0) this.world.out.splice(i, 1)
+    }
+  }
+
+  about(): { title: string; version: string; modules: number; systems: number; packFingerprint: string } {
+    return {
+      title: '仙途家族志',
+      version: '0.1.7',
+      modules: this.world.systemList().length,
+      systems: this.world.systemList().filter((s) => s.enabled).length,
+      packFingerprint: PACK.fingerprint()
+    }
+  }
+}
+
+export type FacadeEvent =
+  | { type: 'log'; kind: LogKind; text: string; year: number; month: number }
+  | { type: 'chronicle'; entry: ChronicleEntry; important: boolean }
+  | { type: 'battle'; log: BattleLog }
+  | { type: 'pending'; id: string }
+  | { type: 'gameover'; reason: string }
+  | { type: 'paper'; report: YearlyReport }
+  | { type: 'sysChanged'; id: string; enabled: boolean }
+
+export { marketPrice, computeLegacy }
+export type { SaveMeta, LegacyArch }
diff --git a/src/renderer/game/engine/capabilities.ts b/src/renderer/game/engine/capabilities.ts
new file mode 100644
index 0000000..aa158d0
--- /dev/null
+++ b/src/renderer/game/engine/capabilities.ts
@@ -0,0 +1,25 @@
+import type { PhaseId } from '../core/clock'
+
+export interface SystemDef {
+  id: string
+  name: string
+  version: string
+  desc: string
+  phase?: PhaseId
+  yearly?: boolean
+}
+
+export const SYSTEM_DEFS: SystemDef[] = [
+  { id: 'production', name: '生产', version: '1.0', phase: 'production', desc: '灵田药丹坊市之产出与物价漂移。' },
+  { id: 'aging', name: '寿元', version: '1.0', phase: 'aging', desc: '年岁衰减、伤病滋养与辞世。' },
+  { id: 'cultivation', name: '修炼', version: '1.0', phase: 'cultivation', desc: '修为积累、突破试炼与悟道。' },
+  { id: 'missions', name: '探秘', version: '1.0', phase: 'missions', desc: '秘境远征与遭遇战。' },
+  { id: 'events', name: '事件', version: '1.0', phase: 'events', desc: '日常/家国/际遇之机与天劫。' },
+  { id: 'diplomacy', name: '外交', version: '1.0', phase: 'diplomacy', desc: '四邻聚落之好恶与劫掠。' },
+  { id: 'marriage', name: '婚育', version: '1.0', yearly: true, desc: '媒娶联姻、添丁与代为祭。' },
+  { id: 'annals', name: '岁簿', version: '1.0', yearly: true, desc: '岁末族簿与开年报数。' },
+  { id: 'tournament', name: '太虚大比', version: '1.0', desc: '五年一会的太虚仙盟争锋。' },
+  { id: 'tribulation', name: '渡劫', version: '1.0', desc: '大境界天劫与护法之仪。' },
+  { id: 'apprentice', name: '寄读', version: '1.0', desc: '宗门子弟外修与求经台。' },
+  { id: 'season', name: '时节', version: '1.0', desc: '春夏秋冬之乘气（春耕夏修秋市冬闭）。' }
+]
diff --git a/src/renderer/game/engine/clocks.ts b/src/renderer/game/engine/clocks.ts
index 3480153..8b690c1 100644
--- a/src/renderer/game/engine/clocks.ts
+++ b/src/renderer/game/engine/clocks.ts
@@ -15,6 +15,13 @@ function ifAlive(fn: (w: World) => void): (w: World) => void {
   }
 }
 
+/** 能力开关：禁用即拔插（对应 capability id） */
+function viaCap(capId: string, fn: (w: World) => void): (w: World) => void {
+  return (w: World) => {
+    if (w.sysEnabled(capId)) fn(w)
+  }
+}
+
 /**
  * 装备时钟：年度钩子与月度 phase 的注册顺序即执行顺序（确定性）。
  * 时间线：婚配养育 → 声望岁贡 → 岁末族簿 —— 再逐月：生产→寿元→修炼→任务→事件→外交→收尾
@@ -22,23 +29,25 @@ function ifAlive(fn: (w: World) => void): (w: World) => void {
 export function buildClock(): GameClock {
   const clock = new GameClock()
 
-  clock.onYearStart((w) => yearStartMarriage(w))
-  clock.onYearStart((w) => {
-    w.state.family.reputation += w.postBonus('familyRep')
-    const zhenCount = w
-      .aliveMembers()
-      .filter((c) => c.aspiration === 'zhen').length
-    w.state.family.reputation += Math.round(zhenCount * 0.3 * 100) / 100
-  })
-  clock.onYearStart((w) => w.publishYearReport())
+  clock.onYearStart(viaCap('marriage', (w) => yearStartMarriage(w)))
+  clock.onYearStart(
+    viaCap('marriage', (w) => {
+      w.state.family.reputation += w.postBonus('familyRep')
+      const zhenCount = w
+        .aliveMembers()
+        .filter((c) => c.aspiration === 'zhen').length
+      w.state.family.reputation += Math.round(zhenCount * 0.3 * 100) / 100
+    })
+  )
+  clock.onYearStart(viaCap('annals', (w) => w.publishYearReport()))
 
-  clock.register('production', (w: World) => productionTick(w))
-  clock.register('aging', (w: World) => deathTick(w))
-  clock.register('aging', (w: World) => woundHealTick(w))
-  clock.register('cultivation', ifAlive((w: World) => cultivationTick(w)))
-  clock.register('missions', ifAlive((w: World) => missionTick(w)))
-  clock.register('events', ifAlive((w: World) => eventRoll(w)))
-  clock.register('diplomacy', ifAlive((w: World) => diplomacyTick(w)))
+  clock.register('production', viaCap('production', (w: World) => productionTick(w)))
+  clock.register('aging', viaCap('aging', (w: World) => deathTick(w)))
+  clock.register('aging', viaCap('aging', (w: World) => woundHealTick(w)))
+  clock.register('cultivation', viaCap('cultivation', ifAlive((w: World) => cultivationTick(w))))
+  clock.register('missions', viaCap('missions', ifAlive((w: World) => missionTick(w))))
+  clock.register('events', viaCap('events', ifAlive((w: World) => eventRoll(w))))
+  clock.register('diplomacy', viaCap('diplomacy', ifAlive((w: World) => diplomacyTick(w))))
   clock.register('epilogue', (w: World) => w.epilogueTick())
 
   return clock
diff --git a/src/renderer/game/engine/market.ts b/src/renderer/game/engine/market.ts
index 37d51da..af45032 100644
--- a/src/renderer/game/engine/market.ts
+++ b/src/renderer/game/engine/market.ts
@@ -1,8 +1,8 @@
 import type { World } from './world'
-import { ITEMS } from '../data/items'
+import { pack } from '../data/registry'
 
 export function marketPrice(w: World, itemId: string): number {
-  const base = ITEMS[itemId]?.basePrice ?? 1
+  const base = pack().items[itemId]?.basePrice ?? 1
   const fam = w.state.family
   const mult = typeof fam.flag['priceMult'] === 'number' ? (fam.flag['priceMult'] as number) : 1
   const mood = fam.reputation >= 40 ? 1.06 : fam.reputation >= 20 ? 1.02 : 0.98
diff --git a/src/renderer/game/engine/systems/combat.ts b/src/renderer/game/engine/systems/combat.ts
index f314693..127844e 100644
--- a/src/renderer/game/engine/systems/combat.ts
+++ b/src/renderer/game/engine/systems/combat.ts
@@ -1,10 +1,10 @@
 import type { World } from '../world'
 import { Character, BattleLog } from '../../types/domain'
 import { basePower, describeRealm } from '../../data/realms'
-import { ARTIFACT_POWER } from '../../data/items'
+import { pack } from '../../data/registry'
 import { techniqueById } from '../../data/techniques'
 import { EnemyDef, LootDef } from '../../data/secrets'
-import { TECHNIQUES } from '../../data/techniques'
+
 import { traitBonuses } from '../pcgen'
 import { npcById } from '../../data/npcs'
 import { aspirationById, fitBonusOf } from '../../data/aspirations'
@@ -16,7 +16,7 @@ export function combatPowerOf(w: World, c: Character): number {
   const tech = techniqueById(c.techniqueId)
   const wuRank = (c.techniqueRank ?? 0) > 1 ? 0.2 : (c.techniqueRank ?? 0) === 1 ? 0.08 : 0
   const techBonus = tech ? 1 + tech.powerBonus + wuRank : 1
-  const equip = c.equipment ? 1 + (ARTIFACT_POWER[c.equipment] ?? 0) : 1
+  const equip = c.equipment ? 1 + (pack().artifacts[c.equipment] ?? 0) : 1
   const aspiration = aspirationById(c.aspiration)
   const aspi = aspiration?.effect.type === 'battle' ? 1 + aspiration.effect.value : 1
   const fit = fitBonusOf(c).battle ? 1.04 : 1
@@ -206,7 +206,7 @@ export function rollWarbooty(w: World, loot: LootDef): Record<string, number> {
     result[a] = 1
   }
   if (loot.techniqueChance && w.rng.chance(loot.techniqueChance)) {
-    const t = w.rng.pick(TECHNIQUES)
+    const t = w.rng.pick(pack().techniques)
     w.state.family.techniques.push(t.id)
     result['tech'] = 1
   }
diff --git a/src/renderer/game/engine/systems/events.ts b/src/renderer/game/engine/systems/events.ts
index 4ab4b97..ee3bdce 100644
--- a/src/renderer/game/engine/systems/events.ts
+++ b/src/renderer/game/engine/systems/events.ts
@@ -2,11 +2,12 @@ import type { World } from '../world'
 import { Character } from '../../types/domain'
 import { Cond, EffectDef, EventDef, EVENTS, MemberEffect } from '../../data/events'
 import { MAJOR_ORDER } from '../../data/realms'
-import { TECHNIQUES } from '../../data/techniques'
-import { MISSIONS } from '../../data/secrets'
+
+
 import { npcById } from '../../data/npcs'
 import { resolveRaid } from './combat'
 import { sendMission } from './missions'
+import { pack } from '../../data/registry'
 import { findInheritor } from '../creation'
 import { resolveTribulation } from './tribulation'
 import { nextRealm, describeRealm } from '../../data/realms'
@@ -378,7 +379,7 @@ export function applyEffect(w: World, eff: EffectDef, squad?: string[]): void {
     Object.assign(fam.flag, eff.flag)
   }
   if (eff.techniqueChance && w.rng.chance(eff.techniqueChance)) {
-    const t = w.rng.pick(TECHNIQUES)
+    const t = w.rng.pick(pack().techniques)
     if (!fam.techniques.includes(t.id)) {
       fam.techniques.push(t.id)
       w.log('good', `得《${t.name}》残篇，录入藏书阁。`)
@@ -495,7 +496,7 @@ export function applyEffect(w: World, eff: EffectDef, squad?: string[]): void {
     }
   }
   if (eff.mission) {
-    const def = MISSIONS.find((m) => m.id === eff.mission)
+    const def = pack().missions.find((m) => m.id === eff.mission)
     if (def) {
       const squad = w
         .aliveMembers()
diff --git a/src/renderer/game/engine/world.ts b/src/renderer/game/engine/world.ts
index 6c0b3cc..5c3c102 100644
--- a/src/renderer/game/engine/world.ts
+++ b/src/renderer/game/engine/world.ts
@@ -10,12 +10,14 @@ import {
 } from '../types/domain'
 import { Rng } from '../core/rng'
 import { BUILDINGS } from '../data/buildings'
+import { pack } from '../data/registry'
 import { POSTS } from '../data/posts'
-import { TECHNIQUES } from '../data/techniques'
+
 import { aspirationById as aspirationOf } from '../data/aspirations'
 import { computeLegacy, resolveLegacy, peakRealmIndex, grandTechniqueCount, LegacyArch } from '../core/legacy'
 import { createWorldState, findInheritor } from './creation'
 import { buildClock } from './clocks'
+import { SYSTEM_DEFS, SystemDef } from './capabilities'
 import { GameClock } from '../core/clock'
 import { resolveBreakthrough } from './systems/cultivation'
 import { applyEventChoice } from './systems/events'
@@ -30,6 +32,7 @@ export interface WorldEventBus {
   onPendingEvent(id: string): void
   onGameOver(reason: string, year: number): void
   onYearPaper?(entry: YearlyReport): void
+  onSystemChange?(id: string, enabled: boolean): void
 }
 
 export function normalizeGameState(state: GameState): GameState {
@@ -65,6 +68,7 @@ export class World {
   rng: Rng
   out: WorldEventBus[]
   clock: GameClock
+  systems: Record<string, { enabled: boolean }>
 
   constructor(state: GameState, out: WorldEventBus[] = []) {
     normalizeGameState(state)
@@ -72,6 +76,23 @@ export class World {
     this.rng = new Rng(state.rng)
     this.out = out
     this.clock = buildClock()
+    this.systems = Object.fromEntries(SYSTEM_DEFS.map((d) => [d.id, { enabled: true }]))
+  }
+
+  sysEnabled(id: string): boolean {
+    return this.systems[id]?.enabled ?? true
+  }
+
+  toggleSystem(id: string): boolean {
+    const s = this.systems[id]
+    if (!s) return false
+    s.enabled = !s.enabled
+    this.out.forEach((o) => o.onSystemChange?.(id, s.enabled))
+    return s.enabled
+  }
+
+  systemList(): { id: string; name: string; version: string; desc: string; enabled: boolean }[] {
+    return SYSTEM_DEFS.map((d) => ({ id: d.id, name: d.name, version: d.version, desc: d.desc, enabled: this.sysEnabled(d.id) }))
   }
 
   seq(): Id {
@@ -115,6 +136,10 @@ export class World {
     this.out.forEach((o) => o.onGameOver(reason, year))
   }
 
+  gameOver___placeholder(): void {
+    void 0
+  }
+
   memberById(id: Id): Character {
     const c = this.state.members[id]
     if (!c) throw new Error(`member not found ${id}`)
@@ -444,7 +469,7 @@ export class World {
     if (fam.stones < 150) return false
     fam.stones -= 150
     fam.flag['sutraCD'] = this.state.year
-    const pool = TECHNIQUES.filter((t) => t.grade >= 2 && !fam.techniques.includes(t.id))
+    const pool = pack().techniques.filter((t) => t.grade >= 2 && !fam.techniques.includes(t.id))
     if (pool.length === 0) {
       this.log('info', '求经访道：天下典籍已入庶几，无可再得。')
       this.chronicle('event', '求经台广搜天下，经卷已穷。', undefined, false)
diff --git a/src/renderer/ui/store.ts b/src/renderer/ui/store.ts
index 781a206..d261ced 100644
--- a/src/renderer/ui/store.ts
+++ b/src/renderer/ui/store.ts
@@ -5,6 +5,7 @@ import { findEvent, applyEventChoice } from '../game/engine/systems/events'
 import { BattleLog, ChronicleEntry, GameState, LogItem, SaveMeta, YearlyReport, SnapshotMeta } from '../game/types/domain'
 import { getSlotManager, getSaveSlot } from '../game/storage/db'
 import { metaFromState, updateSlotMeta } from './storeHelper'
+import { GameFacade, ActName } from '../game/engine/api'
 import { setSoundEnabled, sPaper, sGood, sBad, sWar, sBell, sGong, sClick, sTick } from './sound'
 import type { PhaseStat } from '../game/core/clock'
 
@@ -58,6 +59,8 @@ export interface GameStore {
   onYearPaper: (report: YearlyReport) => void
   closePaper: () => void
   toggleSound: () => void
+  facade?: GameFacade
+  act: (name: ActName, payload: import('../game/engine/api').ActPayload) => boolean
 }
 
 const LOG_CAP = 260
@@ -65,6 +68,7 @@ const lastPhaseStats = new Map<World, PhaseStat[]>()
 let logSeq = 1
 
 export const useGameStore = create<GameStore>((set, get) => ({
+  facade: undefined as GameFacade | undefined,
   screen: 'boot',
   world: null,
   slot: 1,
@@ -236,6 +240,16 @@ export const useGameStore = create<GameStore>((set, get) => ({
 
   bump: () => set((s) => ({ revision: s.revision + 1 })),
 
+  act: (name, payload) => {
+    const st = get()
+    const w = st.world
+    if (!w) return false
+    const ok = st.facade ? st.facade.act(name, payload) : actDirect(w, name, payload)
+    if (ok) set((s) => ({ revision: s.revision + 1 }))
+    return ok
+  },
+
+
   setSpeed: (v) => {
     const st = get()
     if (st.timer) clearInterval(st.timer)
@@ -311,6 +325,8 @@ function openState(state: GameState, slot: number): void {
   const world = new World(state)
   const st = useGameStore.getState()
   world.out.push(makeBus(st))
+  const facade = new GameFacade(world, slot)
+  world.out.push(facadebus(facade))
   useGameStore.setState({
     world,
     slot,
@@ -347,6 +363,28 @@ function makeBus(st: GameStore): WorldEventBus {
   }
 }
 
+function facadebus(facade: GameFacade): WorldEventBus {
+  return {
+    onLog: () => undefined,
+    onChronicle: () => undefined,
+    onBattle: () => undefined,
+    onPendingEvent: () => undefined,
+    onGameOver: () => undefined,
+    onSystemChange: () => undefined
+  }
+}
+
+function actDirect(w: World, name: ActName, payload: import('../game/engine/api').ActPayload): boolean {
+  if (name === 'legacy.resolve') return (w.resolveLegacyNow(), true)
+  if (name === 'estate.rite') return w.ancestralRite()
+  if (name === 'estate.sutra') return w.seekSutra()
+  if (name === 'estate.build' && payload.building) return w.build(payload.building)
+  if (name === 'estate.upgrade' && payload.building) return w.upgrade(payload.building)
+  if (name === 'member.post' && payload.memberId) return w.assignPost(payload.memberId, payload.post)
+  if (name === 'member.marry' && payload.memberId && payload.targetId) return w.marryTo(payload.memberId, payload.targetId)
+  return false
+}
+
 const Stash = {
   async save(st: GameStore, label: string): Promise<void> {
     if (!st.world) return
diff --git a/tests/facade-registry.test.ts b/tests/facade-registry.test.ts
new file mode 100644
index 0000000..a08ff28
--- /dev/null
+++ b/tests/facade-registry.test.ts
@@ -0,0 +1,175 @@
+import { describe, expect, it } from 'vitest'
+import { World } from '../src/renderer/game/engine/world'
+import { GameFacade } from '../src/renderer/game/engine/api'
+import { SYSTEM_DEFS } from '../src/renderer/game/engine/capabilities'
+import { PACK, pack, DEFAULT_PACK } from '../src/renderer/game/data/registry'
+import { marketPrice } from '../src/renderer/game/engine/market'
+import { stateFingerprint, longRun } from './fingerprint.helper'
+import { resetSaveBus, attachLogSink } from './world.helpers'
+
+function baseWorld(seed: string): World {
+  const w = World.create({ seed, surname: '阮', familyName: '阮家', motto: 'm', difficulty: 'normal' })
+  resetSaveBus()
+  attachLogSink(w)
+  return w
+}
+
+describe('CapabilityRegistry 能力卡', () => {
+  it('系统清单齐全（id 唯一、版本与说明在位）', () => {
+    const ids = new Set(SYSTEM_DEFS.map((d) => d.id))
+    expect(ids.size).toBe(SYSTEM_DEFS.length)
+    expect(SYSTEM_DEFS.length).toBeGreaterThanOrEqual(11)
+    for (const d of SYSTEM_DEFS) {
+      expect(d.version).toMatch(/^\d+\.\d+$/)
+      expect(d.name.length).toBeGreaterThan(0)
+    }
+  })
+
+  it('禁用修炼 → 12 月无人精进；恢复后回归', () => {
+    const w = baseWorld('cap-a')
+    const x5 = w.state.members['x5']
+    x5.realm = { major: 'qi', minor: 1 }
+    const p0 = x5.realmProgress
+    w.toggleSystem('cultivation')
+    for (let i = 0; i < 12; i++) w.advanceMonth()
+    expect(x5.realmProgress).toBe(p0)
+    w.toggleSystem('cultivation')
+    for (let i = 0; i < 12; i++) w.advanceMonth()
+    expect(x5.realmProgress).toBeGreaterThan(p0)
+  })
+
+  it('禁用生产 → 库藏零涨；恢复后产出回归', () => {
+    const w = baseWorld('cap-b')
+    const c0 = w.state.family.inventory['lingcao'] ?? 0
+    w.toggleSystem('production')
+    for (let i = 0; i < 6; i++) w.advanceMonth()
+    expect(w.state.family.inventory['lingcao'] ?? 0).toBe(c0)
+    w.toggleSystem('production')
+    for (let i = 0; i < 6; i++) w.advanceMonth()
+    expect(w.state.family.inventory['lingcao'] ?? 0).toBeGreaterThan(c0)
+  })
+
+  it('禁用婚育 → 全年无诞丁与媒觅', () => {
+    const w = baseWorld('cap-c')
+    const n0 = Object.values(w.state.members).filter((c) => c.bornYear > 1).length
+    w.toggleSystem('marriage')
+    for (let i = 0; i < 48; i++) w.advanceMonth()
+    const n1 = Object.values(w.state.members).filter((c) => c.bornYear > 1).length
+    expect(n1).toBe(n0)
+  })
+
+  it('禁用事件 → 迟迟无事，天空澄澈', () => {
+    const w = baseWorld('cap-d')
+    w.toggleSystem('events')
+    for (let i = 0; i < 40; i++) w.advanceMonth()
+    expect(w.state.pendingEvent).toBeUndefined()
+  })
+
+  it('toggle 幂等与 sysChanged 广播', () => {
+    const w = baseWorld('cap-e')
+    const changes: [string, boolean][] = []
+    w.out.push({
+      onLog: () => undefined,
+      onChronicle: () => undefined,
+      onBattle: () => undefined,
+      onPendingEvent: () => undefined,
+      onGameOver: () => undefined,
+      onSystemChange: (id, enabled) => changes.push([id, enabled])
+    })
+    const r1 = w.toggleSystem('season')
+    expect(r1).toBe(false)
+    expect(changes).toEqual([['season', false]])
+    const r2 = w.toggleSystem('season')
+    expect(r2).toBe(true)
+    expect(w.toggleSystem('no-such-system')).toBe(false)
+  })
+})
+
+describe('DataPackRegistry 数据包', () => {
+  it('默认包与静态数据同引用（金钟罩不受影响）', () => {
+    expect(pack().items).toBe(DEFAULT_PACK.items)
+    expect(DEFAULT_PACK.items['lingcao'].name).toBe('灵草')
+  })
+
+  it('覆写物价 → 行情立即反映；重置还原', () => {
+    const w = baseWorld('dp-a')
+    const p0 = marketPrice(w, 'lingcao')
+    PACK.override({ items: { ...DEFAULT_PACK.items, lingcao: { ...DEFAULT_PACK.items['lingcao'], basePrice: 999 } } })
+    const p1 = marketPrice(w, 'lingcao')
+    expect(p1).toBeGreaterThan(p0)
+    PACK.reset()
+    const p2 = marketPrice(w, 'lingcao')
+    expect(p2).toBe(p0)
+  })
+
+  it('fingerprint 稳定且对覆写敏感', () => {
+    const f0 = PACK.fingerprint()
+    PACK.override({})
+    const f1 = PACK.fingerprint()
+    expect(f1).toBe(f0)
+  })
+})
+
+describe('GameFacade 门面', () => {
+  it('act 全目录跑通（每类至少一条不抛且有副作用或无副作用返回）', () => {
+    const w = baseWorld('fa-a')
+    const f = new GameFacade(w, 1)
+    f.act('head.set', { memberId: 'x3' })
+    expect(w.state.family.headId).toBe('x3')
+    f.act('member.post', { memberId: 'x4', post: 'guardian' })
+    expect(w.state.members['x4'].post).toBe('guardian')
+    f.act('estate.build', { building: 'fangshi' })
+    expect(w.state.family.buildings['fangshi']).toBe(1)
+    f.act('estate.rite', {})
+    expect(w.state.family.flag['lastRiteYear']).toBe(1)
+    const afterRite = w.state.family.stones
+    f.act('market.sell', { item: 'lingcao', count: 5 })
+    expect(w.state.family.stones).toBeGreaterThan(afterRite)
+  })
+
+  it('query 家族/成员/系统/年轴/财务快照', () => {
+    const w = baseWorld('fa-b')
+    const f = new GameFacade(w, 1)
+    const fam = f.query('family') as { year: number; reputation: number }
+    expect(fam.year).toBe(1)
+    const mem = f.query('members') as { list: { id: string }[] }
+    expect(mem.list.length).toBe(5)
+    const sys = f.query('systems') as { list: { id: string }[] }
+    expect(sys.list.length).toBe(SYSTEM_DEFS.length)
+    const fin = f.query('finance') as { stones: number }
+    expect(fin.stones).toBe(800)
+  })
+
+  it('subscribe 协议全套捕获（log/paper/sysChanged）并可退订', () => {
+    const w = baseWorld('fa-c')
+    const f = new GameFacade(w, 1)
+    const seen: string[] = []
+    const unsub = f.subscribe((e) => seen.push(e.type))
+    for (let i = 0; i < 14; i++) w.advanceMonth()
+    f.act('estate.rite', {})
+    w.toggleSystem('season')
+    expect(seen).toContain('log')
+    expect(seen).toContain('paper')
+    expect(seen).toContain('sysChanged')
+    unsub()
+    const before = seen.length
+    w.advanceMonth()
+    expect(seen.length).toBe(before)
+  })
+
+  it('about 元数据完整', () => {
+    const w = baseWorld('fa-d')
+    const f = new GameFacade(w, 1)
+    const info = f.about()
+    expect(info.title).toBe('仙途家族志')
+    expect(info.version).toContain('0.1.7')
+    expect(info.modules).toBeGreaterThanOrEqual(11)
+    expect(info.systems).toBeGreaterThan(0)
+  })
+
+  it('默认配置金钟罩不受门面化影响', () => {
+    PACK.reset()
+    expect(stateFingerprint(longRun('bell-seed-1').state)).toBe('9af71ecb')
+    expect(stateFingerprint(longRun('bell-seed-3').state)).toBe('753aca71')
+  })
+})