收紧story与custom world迁移能力边界

docs/technical/README.md

@@ -14,6 +14,7 @@
 - [RUNTIME_STORY_TO_STDB_PHASE1_TRANSPORT_ABSTRACTION_2026-04-20.md](./RUNTIME_STORY_TO_STDB_PHASE1_TRANSPORT_ABSTRACTION_2026-04-20.md)：把 `runtimeStoryService` 改成可替换 transport，为后续 STDB provider 接入预留稳定边界。
 - [RUNTIME_STORY_TO_STDB_PHASE2_CONTRACT_DESIGN_2026-04-20.md](./RUNTIME_STORY_TO_STDB_PHASE2_CONTRACT_DESIGN_2026-04-20.md)：梳理 runtime story 从 Express 迁到 STDB 所需的聚合 view、procedure、mapper 与前端 provider 设计。
 - [RUNTIME_STORY_TO_STDB_PHASE2A_COMPAT_BRIDGE_2026-04-20.md](./RUNTIME_STORY_TO_STDB_PHASE2A_COMPAT_BRIDGE_2026-04-20.md)：确认 runtime story 当前 STDB/Express 快照真源分裂，并补一层只改 story 边界的 STDB 兼容桥。
+- [STORY_WORLD_TO_STDB_CAPABILITY_FIRST_PLAN_2026-04-20.md](./STORY_WORLD_TO_STDB_CAPABILITY_FIRST_PLAN_2026-04-20.md)：明确 story / custom world 后续迁移顺序应先拆 capability/provider，再逐段迁移纯逻辑，避免整块硬搬。
 - [TASK_AUTO_COMMIT_WORKFLOW_2026-04-20.md](./TASK_AUTO_COMMIT_WORKFLOW_2026-04-20.md)：任务完成后按文件边界自动提交的脚本与协作约定。
 - [NODE_DEV_STARTUP_HOTFIX_2026-04-20.md](./NODE_DEV_STARTUP_HOTFIX_2026-04-20.md)：`npm run dev` 启动失败的热修记录、根因与验证结果。
 - [NODE_SERVER_KNOWLEDGE_GRAPH_2026-04-08.md](./NODE_SERVER_KNOWLEDGE_GRAPH_2026-04-08.md)：当前 Node 运行时后端的技术栈、入口、鉴权、存储与接口知识图谱。

docs/technical/STORY_WORLD_TO_STDB_CAPABILITY_FIRST_PLAN_2026-04-20.md

@@ -0,0 +1,103 @@
+# Story / World 向 STDB 迁移：能力先迁、逻辑后搬实施方案（2026-04-20）
+
+更新时间：`2026-04-20`
+
+## 1. 为什么先迁能力，不先整块搬逻辑
+
+当前 `runtime story` 和 `custom world` 都不是“只差把逻辑换个地方跑”。
+
+真实问题有两类：
+
+1. 依赖面过大，很多 service 直接吃 `RuntimeRepositoryPort` 这类大接口
+2. `LLM / SSE / HTTP request / 账号鉴权 / snapshot/session 存取` 仍然缠在一起
+
+如果在这个阶段直接把整块逻辑搬去 STDB，会出现两种风险：
+
+1. 把 Express 耦合一并搬过去，结果不是迁移而是复制
+2. 在 STDB 里同时承接“确定性规则”和“非确定性外部能力”，边界会继续变脏
+
+因此后续迁移顺序固定为：
+
+1. 先拆能力口子
+2. 再给能力口子补 STDB provider
+3. 最后再搬只依赖这些能力口子的纯逻辑
+
+## 2. 迁移分层
+
+### 2.1 可以先收进 STDB 的能力
+
+这类能力适合先做成 capability/provider：
+
+1. runtime snapshot 读取与写回
+2. custom world session 读取与写回
+3. custom world profile / works 聚合读取
+4. runtime story state 聚合读取
+5. runtime story action 聚合写入结果
+
+它们的共同特点：
+
+1. 以数据真源为主
+2. 可以明确建模为 table / view / procedure
+3. 前后端 contract 可以稳定冻结
+
+### 2.2 不能直接塞进 reducer 的能力
+
+以下能力不应和纯规则一起直接塞进 STDB reducer：
+
+1. LLM 调用
+2. SSE 流式输出
+3. 图片 / 资产生成
+4. 长任务轮询与异步编排
+5. 旧 HTTP 鉴权链路
+
+这些能力应该保留在 Express 或 procedure / orchestrator 边界，直到它们被进一步拆清。
+
+## 3. 当前代码收口原则
+
+这一轮先不扩大兼容桥，而是先把依赖面收紧：
+
+1. `storyActionService` 只依赖 `RuntimeStoryCapability`
+2. `CustomWorldSessionStore` 只依赖 `CustomWorldSessionCapability`
+3. `CustomWorldAgentSessionStore` 只依赖 `CustomWorldSessionCapability`
+4. `listCustomWorldWorkSummaries` 只依赖 `CustomWorldWorkSummaryCapability`
+
+这一步的意义不是“已经迁完 STDB”，而是：
+
+1. 后续替换 provider 时，不再需要动整块 `RuntimeRepositoryPort`
+2. 测试 stub 会被迫只实现真实需要的能力
+3. 可以更准确地区分“真源能力迁移”和“业务逻辑迁移”
+
+## 4. 后续实施顺序
+
+### 4.1 Story
+
+1. 继续收紧 `runtime story` 所需 capability
+2. 为 `get state / resolve action` 设计正式 STDB provider contract
+3. 让 `storyActionService` 改为吃 provider，而不是直接认具体仓储
+4. 再把可确定性的结算逻辑逐段迁入 STDB
+
+### 4.2 Custom World
+
+1. 先把 `session / works / profile` 各自 capability 固化
+2. 为 `custom world session` 提供 STDB provider
+3. 为 `agent session` 的会话存取提供 STDB provider
+4. 保留 `LLM / asset / stream` 在 orchestrator 边界
+5. 等会话和作品真源稳定后，再搬纯状态推导逻辑
+
+## 5. 本轮落地点
+
+本轮只做一件事：
+
+1. 把 `story/custom world` 的 service 依赖从大仓储接口改成最小 capability
+
+本轮不做：
+
+1. 新增更大范围兼容桥
+2. 直接把 `custom world agent` 整块搬进 STDB
+3. 把 LLM / stream / asset orchestration 一起迁移
+
+## 6. 验收标准
+
+1. `server-node` 编译通过
+2. 相关测试 stub 不再依赖完整 `RuntimeRepositoryPort`
+3. 文档明确固定“能力先迁、逻辑后搬”的顺序

server-node/src/modules/story/storyActionService.ts

@@ -6,11 +6,9 @@ import type {
   RuntimeStoryPatch,
 } from '../../../../packages/shared/src/contracts/story.js';
 import { conflict, invalidRequest } from '../../errors.js';
-import type {
+import type { SavedSnapshot } from '../../repositories/runtimeRepository.js';
-  RuntimeRepositoryPort,
-  SavedSnapshot,
-} from '../../repositories/runtimeRepository.js';
 import type { UpstreamLlmClient } from '../../services/llmClient.js';
+import type { RuntimeStoryCapability } from '../../services/runtimeCapabilities.js';
 import {
   buildStrictNpcChatDialoguePrompt,
   NPC_CHAT_DIALOGUE_STRICT_SYSTEM_PROMPT,
@@ -80,10 +78,7 @@ type GeneratedStoryPayload = {
   savedCurrentStory: JsonRecord;
 };
 
-type RuntimeSnapshotRepositoryPort = Pick<
+type RuntimeSnapshotRepositoryPort = RuntimeStoryCapability;
-  RuntimeRepositoryPort,
-  'getSnapshot' | 'putSnapshot'
->;
 
 const CONTINUE_ADVENTURE_OPTION = {
   functionId: 'story_continue_adventure',

server-node/src/modules/story/storySpacetimeBridge.ts

@@ -6,18 +6,15 @@ import type {
 } from '../../../../src/spacetime/generated/types.ts';
 import { conflict, unauthorized } from '../../errors.js';
 import type {
-  RuntimeRepositoryPort,
   SavedSnapshot,
 } from '../../repositories/runtimeRepository.js';
 import type { AppConfig } from '../../config.js';
 import { hydrateSavedSnapshot } from '../runtime/runtimeSnapshotHydration.js';
+import type { RuntimeStoryCapability } from '../../services/runtimeCapabilities.js';
 
 const STORY_STDB_AUTH_HEADER = 'x-genarrative-runtime-story-auth';
 
-type RuntimeSnapshotRepositoryPort = Pick<
+type RuntimeSnapshotRepositoryPort = RuntimeStoryCapability;
-  RuntimeRepositoryPort,
-  'getSnapshot' | 'putSnapshot'
->;
 
 type StoryStdbBridgeContext = {
   config: AppConfig;
@@ -160,7 +157,7 @@ export async function authenticateRuntimeStoryViaSpacetime(
 
 export function createRuntimeStorySnapshotRepository(params: {
   request: Request;
-  runtimeRepository: RuntimeRepositoryPort;
+  runtimeRepository: RuntimeStoryCapability;
   config: AppConfig;
 }): RuntimeSnapshotRepositoryPort {
   if (params.request.runtimeStoryAuthMode !== 'spacetime') {

server-node/src/services/customWorldAgentPhase2.test.ts

@@ -2,7 +2,6 @@ import assert from 'node:assert/strict';
 import test from 'node:test';
 
 import type { CustomWorldSessionRecord } from '../../../packages/shared/src/contracts/runtime.js';
-import type { RuntimeRepositoryPort } from '../repositories/runtimeRepository.js';
 import {
   buildPendingClarifications,
   evaluateCreatorIntentReadiness,
@@ -15,8 +14,13 @@ import { CustomWorldAgentOrchestrator } from './customWorldAgentOrchestrator.js'
 import { CustomWorldAgentSessionStore } from './customWorldAgentSessionStore.js';
 import { createTestCustomWorldAgentSingleTurnLlmClient } from './customWorldAgentTestHelpers.js';
 import { listCustomWorldWorkSummaries } from './customWorldWorkSummaryService.js';
+import type {
+  CustomWorldSessionCapability,
+  CustomWorldWorkSummaryCapability,
+} from './runtimeCapabilities.js';
 
-function createRuntimeRepositoryStub(): RuntimeRepositoryPort {
+function createRuntimeRepositoryStub(): CustomWorldSessionCapability &
+  CustomWorldWorkSummaryCapability {
   const sessionsByUser = new Map<
     string,
     Map<string, CustomWorldSessionRecord>
@@ -35,51 +39,9 @@ function createRuntimeRepositoryStub(): RuntimeRepositoryPort {
   };
 
   return {
-    async getSnapshot(_userId) {
-      return null;
-    },
-    async putSnapshot(_userId, _payload) {
-      throw new Error('not implemented');
-    },
-    async deleteSnapshot(_userId) {
-      return undefined;
-    },
-    async getSettings() {
-      return {
-        musicVolume: 0.42,
-        platformTheme: 'light',
-      };
-    },
-    async putSettings(_userId, settings) {
-      return settings;
-    },
     async listCustomWorldProfiles(userId) {
       return [...(profilesByUser.get(userId) ?? [])];
     },
-    async upsertCustomWorldProfile(userId, profileId, profile) {
-      const current = [...(profilesByUser.get(userId) ?? [])].filter(
-        (item) => String(item.id ?? '') !== profileId,
-      );
-      current.unshift({
-        ...profile,
-        id: profileId,
-      });
-      profilesByUser.set(userId, current);
-      return current;
-    },
-    async deleteCustomWorldProfile(userId, profileId) {
-      const current = [...(profilesByUser.get(userId) ?? [])].filter(
-        (item) => String(item.id ?? '') !== profileId,
-      );
-      profilesByUser.set(userId, current);
-      return current;
-    },
-    async listProfileSaveArchives() {
-      return [];
-    },
-    async resumeProfileSaveArchive() {
-      return null;
-    },
     async listCustomWorldSessions(userId) {
       return [...getSessionBucket(userId).values()];
     },

server-node/src/services/customWorldAgentPhase3.test.ts

@@ -2,13 +2,17 @@ import assert from 'node:assert/strict';
 import test from 'node:test';
 
 import type { CustomWorldSessionRecord } from '../../../packages/shared/src/contracts/runtime.js';
-import type { RuntimeRepositoryPort } from '../repositories/runtimeRepository.js';
 import { CustomWorldAgentOrchestrator } from './customWorldAgentOrchestrator.js';
 import { CustomWorldAgentSessionStore } from './customWorldAgentSessionStore.js';
 import { createTestCustomWorldAgentSingleTurnLlmClient } from './customWorldAgentTestHelpers.js';
 import { listCustomWorldWorkSummaries } from './customWorldWorkSummaryService.js';
+import type {
+  CustomWorldSessionCapability,
+  CustomWorldWorkSummaryCapability,
+} from './runtimeCapabilities.js';
 
-function createRuntimeRepositoryStub(): RuntimeRepositoryPort {
+function createRuntimeRepositoryStub(): CustomWorldSessionCapability &
+  CustomWorldWorkSummaryCapability {
   const sessionsByUser = new Map<
     string,
     Map<string, CustomWorldSessionRecord>
@@ -27,51 +31,9 @@ function createRuntimeRepositoryStub(): RuntimeRepositoryPort {
   };
 
   return {
-    async getSnapshot(_userId) {
-      return null;
-    },
-    async putSnapshot(_userId, _payload) {
-      throw new Error('not implemented');
-    },
-    async deleteSnapshot(_userId) {
-      return undefined;
-    },
-    async getSettings() {
-      return {
-        musicVolume: 0.42,
-        platformTheme: 'light',
-      };
-    },
-    async putSettings(_userId, settings) {
-      return settings;
-    },
     async listCustomWorldProfiles(userId) {
       return [...(profilesByUser.get(userId) ?? [])];
     },
-    async upsertCustomWorldProfile(userId, profileId, profile) {
-      const current = [...(profilesByUser.get(userId) ?? [])].filter(
-        (item) => String(item.id ?? '') !== profileId,
-      );
-      current.unshift({
-        ...profile,
-        id: profileId,
-      });
-      profilesByUser.set(userId, current);
-      return current;
-    },
-    async deleteCustomWorldProfile(userId, profileId) {
-      const current = [...(profilesByUser.get(userId) ?? [])].filter(
-        (item) => String(item.id ?? '') !== profileId,
-      );
-      profilesByUser.set(userId, current);
-      return current;
-    },
-    async listProfileSaveArchives() {
-      return [];
-    },
-    async resumeProfileSaveArchive() {
-      return null;
-    },
     async listCustomWorldSessions(userId) {
       return [...getSessionBucket(userId).values()];
     },

server-node/src/services/customWorldAgentPhase4.test.ts

@@ -2,14 +2,18 @@ import assert from 'node:assert/strict';
 import test from 'node:test';
 
 import type { CustomWorldSessionRecord } from '../../../packages/shared/src/contracts/runtime.js';
-import type { RuntimeRepositoryPort } from '../repositories/runtimeRepository.js';
 import { normalizeFoundationDraftProfile } from './customWorldAgentDraftCompiler.js';
 import { CustomWorldAgentOrchestrator } from './customWorldAgentOrchestrator.js';
 import { CustomWorldAgentSessionStore } from './customWorldAgentSessionStore.js';
 import { createTestCustomWorldAgentSingleTurnLlmClient } from './customWorldAgentTestHelpers.js';
 import { listCustomWorldWorkSummaries } from './customWorldWorkSummaryService.js';
+import type {
+  CustomWorldSessionCapability,
+  CustomWorldWorkSummaryCapability,
+} from './runtimeCapabilities.js';
 
-function createRuntimeRepositoryStub(): RuntimeRepositoryPort {
+function createRuntimeRepositoryStub(): CustomWorldSessionCapability &
+  CustomWorldWorkSummaryCapability {
   const sessionsByUser = new Map<
     string,
     Map<string, CustomWorldSessionRecord>
@@ -28,51 +32,9 @@ function createRuntimeRepositoryStub(): RuntimeRepositoryPort {
   };
 
   return {
-    async getSnapshot(_userId) {
-      return null;
-    },
-    async putSnapshot(_userId, _payload) {
-      throw new Error('not implemented');
-    },
-    async deleteSnapshot(_userId) {
-      return undefined;
-    },
-    async getSettings() {
-      return {
-        musicVolume: 0.42,
-        platformTheme: 'light',
-      };
-    },
-    async putSettings(_userId, settings) {
-      return settings;
-    },
     async listCustomWorldProfiles(userId) {
       return [...(profilesByUser.get(userId) ?? [])];
     },
-    async upsertCustomWorldProfile(userId, profileId, profile) {
-      const current = [...(profilesByUser.get(userId) ?? [])].filter(
-        (item) => String(item.id ?? '') !== profileId,
-      );
-      current.unshift({
-        ...profile,
-        id: profileId,
-      });
-      profilesByUser.set(userId, current);
-      return current;
-    },
-    async deleteCustomWorldProfile(userId, profileId) {
-      const current = [...(profilesByUser.get(userId) ?? [])].filter(
-        (item) => String(item.id ?? '') !== profileId,
-      );
-      profilesByUser.set(userId, current);
-      return current;
-    },
-    async listProfileSaveArchives() {
-      return [];
-    },
-    async resumeProfileSaveArchive() {
-      return null;
-    },
     async listCustomWorldSessions(userId) {
       return [...getSessionBucket(userId).values()];
     },

server-node/src/services/customWorldAgentPhase5.test.ts

@@ -2,18 +2,17 @@ import assert from 'node:assert/strict';
 import test from 'node:test';
 
 import type { CustomWorldSessionRecord } from '../../../packages/shared/src/contracts/runtime.js';
-import type { RuntimeRepositoryPort } from '../repositories/runtimeRepository.js';
 import { normalizeFoundationDraftProfile } from './customWorldAgentDraftCompiler.js';
 import { CustomWorldAgentOrchestrator } from './customWorldAgentOrchestrator.js';
 import { CustomWorldAgentSessionStore } from './customWorldAgentSessionStore.js';
 import { createTestCustomWorldAgentSingleTurnLlmClient } from './customWorldAgentTestHelpers.js';
+import type { CustomWorldSessionCapability } from './runtimeCapabilities.js';
 
-function createRuntimeRepositoryStub(): RuntimeRepositoryPort {
+function createRuntimeRepositoryStub(): CustomWorldSessionCapability {
   const sessionsByUser = new Map<
     string,
     Map<string, CustomWorldSessionRecord>
   >();
-  const profilesByUser = new Map<string, Record<string, unknown>[]>();
 
   const getSessionBucket = (userId: string) => {
     const existing = sessionsByUser.get(userId);
@@ -27,51 +26,6 @@ function createRuntimeRepositoryStub(): RuntimeRepositoryPort {
   };
 
   return {
-    async getSnapshot() {
-      return null;
-    },
-    async putSnapshot(_userId, payload) {
-      return payload;
-    },
-    async deleteSnapshot() {
-      return undefined;
-    },
-    async getSettings() {
-      return {
-        musicVolume: 0.42,
-        platformTheme: 'light',
-      };
-    },
-    async putSettings(_userId, settings) {
-      return settings;
-    },
-    async listCustomWorldProfiles(userId) {
-      return [...(profilesByUser.get(userId) ?? [])];
-    },
-    async upsertCustomWorldProfile(userId, profileId, profile) {
-      const current = [...(profilesByUser.get(userId) ?? [])].filter(
-        (item) => String(item.id ?? '') !== profileId,
-      );
-      current.unshift({
-        ...profile,
-        id: profileId,
-      });
-      profilesByUser.set(userId, current);
-      return current;
-    },
-    async deleteCustomWorldProfile(userId, profileId) {
-      const current = [...(profilesByUser.get(userId) ?? [])].filter(
-        (item) => String(item.id ?? '') !== profileId,
-      );
-      profilesByUser.set(userId, current);
-      return current;
-    },
-    async listProfileSaveArchives() {
-      return [];
-    },
-    async resumeProfileSaveArchive() {
-      return null;
-    },
     async listCustomWorldSessions(userId) {
       return [...getSessionBucket(userId).values()];
     },

server-node/src/services/customWorldAgentSessionStore.ts

@@ -13,7 +13,6 @@ import type {
   EightAnchorContent,
 } from '../../../packages/shared/src/contracts/customWorldAgent.js';
 import type { CustomWorldSessionRecord as LegacyCustomWorldSessionRecord } from '../../../packages/shared/src/contracts/runtime.js';
-import type { RuntimeRepositoryPort } from '../repositories/runtimeRepository.js';
 import {
   buildPendingClarifications,
   evaluateCreatorIntentReadiness,
@@ -33,6 +32,7 @@ import {
   estimateProgressPercentFromAnchorContent,
   normalizeEightAnchorContent,
 } from './eightAnchorCompatibilityService.js';
+import type { CustomWorldSessionCapability } from './runtimeCapabilities.js';
 
 export const CUSTOM_WORLD_AGENT_SESSION_ID_PREFIX =
   'custom-world-agent-session-';
@@ -565,7 +565,7 @@ function toSnapshot(
 }
 
 export class CustomWorldAgentSessionStore {
-  constructor(private readonly runtimeRepository: RuntimeRepositoryPort) {}
+  constructor(private readonly runtimeRepository: CustomWorldSessionCapability) {}
 
   private async persist(record: CustomWorldAgentSessionRecord) {
     await this.runtimeRepository.upsertCustomWorldSession(

server-node/src/services/customWorldSessionStore.ts

@@ -7,7 +7,7 @@ import type {
   CustomWorldSessionRecord,
   CustomWorldSessionStatus,
 } from '../../../packages/shared/src/contracts/runtime.js';
-import type { RuntimeRepositoryPort } from '../repositories/runtimeRepository.js';
+import type { CustomWorldSessionCapability } from './runtimeCapabilities.js';
 
 export type CustomWorldSession = {
   sessionId: string;
@@ -111,7 +111,7 @@ function buildClarificationQuestions(
 
 export class CustomWorldSessionStore {
   constructor(
-    private readonly runtimeRepository: RuntimeRepositoryPort,
+    private readonly runtimeRepository: CustomWorldSessionCapability,
   ) {}
 
   async create(

server-node/src/services/customWorldWorkSummaryService.ts

@@ -6,7 +6,6 @@ import type {
   CustomWorldLibraryEntry,
   CustomWorldProfileRecord,
 } from '../../../packages/shared/src/contracts/runtime.js';
-import type { RuntimeRepositoryPort } from '../repositories/runtimeRepository.js';
 import { resolveCustomWorldCoverPresentation } from '../repositories/customWorldLibraryMetadata.js';
 import { normalizeFoundationDraftProfile } from './customWorldAgentDraftCompiler.js';
 import {
@@ -26,6 +25,7 @@ import {
   buildDraftSummaryFromEightAnchorContent,
   buildDraftTitleFromEightAnchorContent,
 } from './eightAnchorCompatibilityService.js';
+import type { CustomWorldWorkSummaryCapability } from './runtimeCapabilities.js';
 
 function toText(value: unknown) {
   return typeof value === 'string' ? value.trim() : '';
@@ -171,7 +171,7 @@ function isLibraryEntry(
 export async function listCustomWorldWorkSummaries(
   userId: string,
   dependencies: {
-    runtimeRepository: RuntimeRepositoryPort;
+    runtimeRepository: CustomWorldWorkSummaryCapability;
     customWorldAgentSessions: CustomWorldAgentSessionStore;
   },
 ) {

server-node/src/services/runtimeCapabilities.ts

@@ -0,0 +1,53 @@
+import type { CustomWorldProfileRecord, CustomWorldSessionRecord } from '../../../packages/shared/src/contracts/runtime.js';
+import type {
+  RuntimeRepositoryPort,
+  SavedSnapshot,
+} from '../repositories/runtimeRepository.js';
+
+export type RuntimeSnapshotCapability = Pick<
+  RuntimeRepositoryPort,
+  'getSnapshot' | 'putSnapshot'
+>;
+
+export type CustomWorldProfileCapability = Pick<
+  RuntimeRepositoryPort,
+  'listCustomWorldProfiles'
+>;
+
+export type CustomWorldSessionCapability = {
+  listCustomWorldSessions(userId: string): Promise<CustomWorldSessionRecord[]>;
+  getCustomWorldSession(
+    userId: string,
+    sessionId: string,
+  ): Promise<CustomWorldSessionRecord | null>;
+  upsertCustomWorldSession(
+    userId: string,
+    sessionId: string,
+    session: CustomWorldSessionRecord,
+  ): Promise<CustomWorldSessionRecord>;
+};
+
+export type RuntimeStoryCapability = RuntimeSnapshotCapability;
+
+export type CustomWorldWorkSummaryCapability = CustomWorldProfileCapability;
+
+export function createRuntimeSnapshotCapability(
+  runtimeRepository: RuntimeRepositoryPort,
+): RuntimeSnapshotCapability {
+  return runtimeRepository;
+}
+
+export function createCustomWorldSessionCapability(
+  runtimeRepository: RuntimeRepositoryPort,
+): CustomWorldSessionCapability {
+  return runtimeRepository;
+}
+
+export function createCustomWorldProfileCapability(
+  runtimeRepository: RuntimeRepositoryPort,
+): CustomWorldProfileCapability {
+  return runtimeRepository;
+}
+
+export type RuntimeStorySnapshot = SavedSnapshot;
+export type RuntimeCustomWorldProfile = CustomWorldProfileRecord;