diff --git a/.hermes/shared-memory/decision-log.md b/.hermes/shared-memory/decision-log.md
index 7a478fd8..0f10d5d3 100644
--- a/.hermes/shared-memory/decision-log.md
+++ b/.hermes/shared-memory/decision-log.md
@@ -1363,6 +1363,14 @@
 - 验证方式：`npm run test -- src/components/platform-entry/platformPublicCodeSearchModel.test.ts`、针对新 Module 和 `PlatformEntryFlowShellImpl.tsx` 执行 ESLint、`npm run typecheck`、`npm run check:encoding`。
 - 关联文档：`docs/technical/【前端架构】PlatformPublicCodeSearchModel收口计划-2026-06-04.md`、`docs/【玩法创作】平台入口与玩法链路-2026-05-15.md`。
 
+## 2026-06-04 Platform Played Work Open Model 收口
+
+- 背景：`PlatformEntryFlowShellImpl.tsx` 的个人“玩过作品”点击回调内联判断 `worldType`、`worldKey` 前缀、玩法别名、目标 ID、RPG fallback 详情和大鱼吃小鱼 fallback work，壳层同时承担打开意图与异步副作用。
+- 决策：新增 `src/components/platform-entry/platformPlayedWorkOpenModel.ts`，以 `resolvePlatformPlayedWorkOpenIntent(work)` 返回 `noop`、各玩法公开详情打开意图、`open-big-fish` 或 `open-rpg`。Module 负责玩法别名、`worldKey` 前缀兜底、big-fish gallery miss `fallbackWork` 和 RPG `CustomWorldGalleryCard` payload；壳层继续负责关闭面板、刷新 gallery、命中真实作品、打开详情和错误提示。
+- 影响范围：个人“玩过作品”面板点击打开、拼图 / 抓大鹅 / 方洞 / 跳一跳 / 敲木鱼 / 大鱼吃小鱼 / RPG 公开详情入口。
+- 验证方式：`npm run test -- src/components/platform-entry/platformPlayedWorkOpenModel.test.ts`、针对新 Module 和 `PlatformEntryFlowShellImpl.tsx` 执行 ESLint、相关 profile 面板交互片段、`npm run typecheck`、`npm run check:encoding`。
+- 关联文档：`docs/technical/【前端架构】PlatformPlayedWorkOpenModel收口计划-2026-06-04.md`、`docs/【玩法创作】平台入口与玩法链路-2026-05-15.md`。
+
 ## 2026-06-03 Public Work Presentation 收口
 
 - 背景：作品卡、推荐 runtime meta、排行项、分类项、搜索结果和桌面 hero 共用玩法类型 label 与紧凑计数格式，但规则仍在 `RpgEntryHomeView.tsx` 页面 Implementation 内。
diff --git a/docs/README.md b/docs/README.md
index 87a3878f..23f617d5 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -51,6 +51,8 @@ AI 文字游戏模板接入以 [AI_NATIVE_TEXT_GAME_TEMPLATE_MOKU_REFERENCE_PRD_
 
 平台入口公开码搜索的用户 ID、陶泥号、RPG 作品号、各玩法作品号前缀和失败回退顺序收口到 `src/components/platform-entry/platformPublicCodeSearchModel.ts`，壳层只按计划执行网络读取、详情打开和错误归航副作用，规则见 [【前端架构】PlatformPublicCodeSearchModel收口计划-2026-06-04.md](./technical/【前端架构】PlatformPublicCodeSearchModel收口计划-2026-06-04.md)。
 
+个人“玩过作品”面板的玩法别名、`worldKey` 前缀兜底、RPG 公开详情 payload 和大鱼吃小鱼 gallery miss fallback 收口到 `src/components/platform-entry/platformPlayedWorkOpenModel.ts`，壳层只执行面板关闭、gallery 读取、详情打开和错误提示副作用，规则见 [【前端架构】PlatformPlayedWorkOpenModel收口计划-2026-06-04.md](./technical/【前端架构】PlatformPlayedWorkOpenModel收口计划-2026-06-04.md)。
+
 平台入口创作生成通知、pending 作品架占位、失败覆盖、拼图稳定 ID 和草稿 Tab 未读点收口到 `src/components/platform-entry/platformDraftGenerationShelfModel.ts`，规则见 [【前端架构】DraftGenerationShelfModel收口计划-2026-06-03.md](./technical/%E3%80%90%E5%89%8D%E7%AB%AF%E6%9E%B6%E6%9E%84%E3%80%91DraftGenerationShelfModel%E6%94%B6%E5%8F%A3%E8%AE%A1%E5%88%92-2026-06-03.md)。
 
 平台入口创作恢复 URL 私有 query、初始恢复判定、创作直达恢复目标解析、恢复目标身份匹配、跳一跳 / 敲木鱼恢复阶段落点、拼图 runtime query 与拼图稳定身份互推收口到 `src/components/platform-entry/platformCreationUrlStateModel.ts` 和 `src/components/platform-entry/platformPuzzleIdentityModel.ts`，规则见 [【前端架构】CreationUrlStateModel收口计划-2026-06-03.md](./technical/【前端架构】CreationUrlStateModel收口计划-2026-06-03.md)。
diff --git a/docs/technical/【前端架构】PlatformPlayedWorkOpenModel收口计划-2026-06-04.md b/docs/technical/【前端架构】PlatformPlayedWorkOpenModel收口计划-2026-06-04.md
new file mode 100644
index 00000000..554ec31a
--- /dev/null
+++ b/docs/technical/【前端架构】PlatformPlayedWorkOpenModel收口计划-2026-06-04.md
@@ -0,0 +1,39 @@
+# 【前端架构】Platform Played Work Open Model 收口计划
+
+## 背景
+
+`PlatformEntryFlowShellImpl.tsx` 的个人“玩过作品”点击回调曾在壳层内直接判断 `worldType`、`worldKey` 前缀、玩法别名、目标 ID 兜底、RPG 公开详情 payload 和大鱼吃小鱼 gallery miss fallback。壳层因此同时承载纯打开意图与异步副作用，后续新增玩法或修正玩过作品身份时缺少稳定测试面。
+
+个人“玩过作品”的点击规则属于打开意图。壳层应只关闭面板、读取 gallery、打开详情和写错误；玩法别名、目标 ID、fallback payload 应收口到纯 **Module**。
+
+## 决策
+
+新增 `src/components/platform-entry/platformPlayedWorkOpenModel.ts` 作为 Platform Played Work Open **Module**。其公开 **Interface** 为：
+
+- `resolvePlatformPlayedWorkOpenIntent(work)`：输入 `ProfilePlayedWorkSummary`，输出 `noop`、各玩法公开详情打开意图、`open-big-fish` 或 `open-rpg`。
+- `PlatformPlayedWorkOpenIntent`：描述壳层可执行的打开动作；大鱼吃小鱼意图包含 `sessionId` 和 gallery miss 时使用的 `fallbackWork`，RPG 意图包含 `CustomWorldGalleryCard` 详情 payload。
+
+`PlatformEntryFlowShellImpl.tsx` 仍作为 **Adapter**：它保留 `setIsProfilePlayStatsOpen(false)`、各玩法 `open*PublicWorkDetail`、`refreshBigFishGallery()`、大鱼 gallery 命中优先逻辑、`mapBigFishWorkToPublicWorkDetail(...)` 与错误 setter。
+
+## Interface 约束
+
+- `worldType` 只做小写归一，不 trim；`worldKey` 前缀匹配保持大小写敏感，延续旧行为。
+- `profileId` 使用 nullish 优先级：只在 `profileId` 为 `null` / `undefined` 时从 `worldKey` 前缀兜底；空字符串仍视为缺目标并返回 `noop`。
+- `puzzle` 打开时固定携带 `{ tab: 'profile' }`。
+- `match3d` / `match_3d`、`square-hole` / `square_hole`、`jump-hop` / `jump_hop`、`wooden-fish` / `wooden_fish`、`big-fish` / `big_fish` 均保持既有别名。
+- `big-fish` 缺 gallery 命中时使用 Module 生成的 `fallbackWork`，默认 `ownerUserId` 为空串、`authorDisplayName` 为 `worldSubtitle || '玩家'`、关卡和素材 ready 计数为 `0` / `false`。
+- 未识别的 `worldType` 仍按 RPG 公开详情打开；缺 `ownerUserId` 或缺 profile 目标时返回 `noop`。
+
+## Depth / Leverage / Locality
+
+- **Depth**：调用方只消费一个打开 intent；玩法别名、目标 ID 兜底和 fallback payload 藏入 Module Implementation。
+- **Leverage**：新增“玩过作品”玩法时，先在 intent union、resolver 与单测中定义，再让壳层 Adapter 绑定对应打开副作用。
+- **Locality**：RPG fallback payload 与大鱼 fallback work 不再散落在大型壳层里，维护者可在纯测试中锁定字段契约。
+
+## 验收
+
+- `npm run test -- src/components/platform-entry/platformPlayedWorkOpenModel.test.ts`
+- `npx eslint src/components/platform-entry/platformPlayedWorkOpenModel.ts src/components/platform-entry/platformPlayedWorkOpenModel.test.ts src/components/platform-entry/PlatformEntryFlowShellImpl.tsx --quiet`
+- `npm run test -- src/components/rpg-entry/RpgEntryFlowShell.agent.interaction.test.tsx -t "authenticated users can open save archives from the profile played panel"`
+- `npm run typecheck`
+- `npm run check:encoding`
diff --git a/docs/【玩法创作】平台入口与玩法链路-2026-05-15.md b/docs/【玩法创作】平台入口与玩法链路-2026-05-15.md
index 4d134bb8..f73a589c 100644
--- a/docs/【玩法创作】平台入口与玩法链路-2026-05-15.md
+++ b/docs/【玩法创作】平台入口与玩法链路-2026-05-15.md
@@ -59,6 +59,8 @@
 
 平台公开搜索的分流顺序统一由 `platformPublicCodeSearchModel.ts` 判定：`user_` / `user-` 内部用户 ID 只查用户 ID；`PZ`、`BF`、`JH`、`WF`、`BO`、`M3`、`SH`、`VN`、`BB` 前缀分别直达对应玩法公开作品；`CW` 与 1-8 位纯数字先查 RPG 公开作品再回退陶泥号；普通关键词和 `SY` 陶泥号保持先查陶泥号、再查 RPG 作品、再查汪汪声浪作品、最后陶泥号兜底的既有顺序。平台壳只按计划执行网络读取、详情打开、Bark Battle runtime 特例和缺失作品归航，不在壳层重复维护前缀布尔链。
 
+个人“玩过作品”面板点击作品时，玩法别名、`worldKey` 前缀兜底、RPG 公开详情 payload 和大鱼吃小鱼缺 gallery 命中时的 fallback work 统一由 `platformPlayedWorkOpenModel.ts` 判定。平台壳只负责关闭面板、调用对应公开详情打开函数、刷新大鱼 gallery、优先使用真实 gallery 命中项和写入错误提示；不要在壳层重新维护 `worldType` / `worldKey` 分支链。
+
 发现 Tab、创作 Tab 与草稿 Tab 的页面根内容区不再套 `platform-page-stage` 外层全局卡片壳，让列表、筛选和玩法卡获得更宽的横向空间；推荐页和我的页仍按各自页面设计保留原有全局卡片口径。移动端“我的”页仍按顶部头像 / 昵称 / 陶泥号、会员横幅、三张统计卡、每日任务、五项常用功能宫格、设置入口和法律信息组织，不保留旧的底部“填邀请码”次级入口；常用功能当前只展示四项常驻入口时必须按四列铺满整行，不保留五列网格导致左对齐空位；每日任务卡必须读取 `/api/profile/tasks` 的当前任务摘要并在领取后同步刷新卡片进度。字号必须维持平台普通 UI 档位，不能因为窄屏把卡片标题、功能 label 或法律信息撑成展示级字号；最后一屏内容必须能在底部 dock 上方完整滚动露出，不得被固定底部导航遮挡。
 
 ## RPG / 自定义世界
diff --git a/src/components/platform-entry/PlatformEntryFlowShellImpl.tsx b/src/components/platform-entry/PlatformEntryFlowShellImpl.tsx
index 1ec3bdc3..bdc8ea92 100644
--- a/src/components/platform-entry/PlatformEntryFlowShellImpl.tsx
+++ b/src/components/platform-entry/PlatformEntryFlowShellImpl.tsx
@@ -512,6 +512,7 @@ import {
   resolveMatch3DRuntimeGeneratedBackgroundAsset,
   resolveMatch3DRuntimeGeneratedItemAssets,
 } from './platformMatch3DRuntimeProfile';
+import { resolvePlatformPlayedWorkOpenIntent } from './platformPlayedWorkOpenModel';
 import {
   type PlatformPublicCodeSearchStep,
   resolvePlatformPublicCodeSearchPlan,
@@ -13815,145 +13816,59 @@ export function PlatformEntryFlowShellImpl({
 
   const openPlayedWork = useCallback(
     (work: ProfilePlayedWorkSummary) => {
-      const worldType = (work.worldType ?? '').toLowerCase();
+      const intent = resolvePlatformPlayedWorkOpenIntent(work);
       setIsProfilePlayStatsOpen(false);
 
-      if (worldType === 'puzzle' || work.worldKey.startsWith('puzzle:')) {
-        const profileId =
-          work.profileId ?? work.worldKey.replace(/^puzzle:/u, '');
-        if (profileId) {
-          void openPuzzlePublicWorkDetail(profileId, { tab: 'profile' });
-        }
-        return;
-      }
-
-      if (
-        worldType === 'match3d' ||
-        worldType === 'match_3d' ||
-        work.worldKey.startsWith('match3d:')
-      ) {
-        const profileId =
-          work.profileId ?? work.worldKey.replace(/^match3d:/u, '');
-        if (profileId) {
-          void openMatch3DPublicWorkDetail(profileId);
-        }
-        return;
-      }
-
-      if (
-        worldType === 'square-hole' ||
-        worldType === 'square_hole' ||
-        work.worldKey.startsWith('square-hole:')
-      ) {
-        const profileId =
-          work.profileId ?? work.worldKey.replace(/^square-hole:/u, '');
-        if (profileId) {
-          void openSquareHolePublicWorkDetail(profileId);
-        }
-        return;
-      }
-
-      if (
-        worldType === 'jump-hop' ||
-        worldType === 'jump_hop' ||
-        work.worldKey.startsWith('jump-hop:')
-      ) {
-        const profileId =
-          work.profileId ?? work.worldKey.replace(/^jump-hop:/u, '');
-        if (profileId) {
-          void openJumpHopPublicWorkDetail(profileId);
-        }
-        return;
-      }
-
-      if (
-        worldType === 'wooden-fish' ||
-        worldType === 'wooden_fish' ||
-        work.worldKey.startsWith('wooden-fish:')
-      ) {
-        const profileId =
-          work.profileId ?? work.worldKey.replace(/^wooden-fish:/u, '');
-        if (profileId) {
-          void openWoodenFishPublicWorkDetail(profileId);
-        }
-        return;
-      }
-
-      if (
-        worldType === 'big_fish' ||
-        worldType === 'big-fish' ||
-        work.worldKey.startsWith('big-fish:')
-      ) {
-        const sessionId =
-          work.profileId ?? work.worldKey.replace(/^big-fish:/u, '');
-        if (!sessionId) {
+      switch (intent.type) {
+        case 'noop':
           return;
-        }
-        void refreshBigFishGallery()
-          .then((entries) => {
-            const matchedEntry = entries.find(
-              (entry) => entry.sourceSessionId === sessionId,
-            );
-            if (matchedEntry) {
-              openPublicWorkDetail(
-                mapBigFishWorkToPublicWorkDetail(matchedEntry),
-              );
-              return;
-            }
-            openPublicWorkDetail(
-              mapBigFishWorkToPublicWorkDetail({
-                workId: `big-fish:${sessionId}`,
-                sourceSessionId: sessionId,
-                ownerUserId: work.ownerUserId ?? '',
-                authorDisplayName: work.worldSubtitle || '玩家',
-                title: work.worldTitle,
-                subtitle: work.worldSubtitle,
-                summary: work.worldSubtitle,
-                coverImageSrc: null,
-                status: 'published',
-                updatedAt: work.lastPlayedAt,
-                publishReady: true,
-                levelCount: 0,
-                levelMainImageReadyCount: 0,
-                levelMotionReadyCount: 0,
-                backgroundReady: false,
-              }),
-            );
-          })
-          .catch((error) => {
-            setBigFishError(
-              resolveBigFishErrorMessage(error, '进入大鱼吃小鱼作品失败。'),
-            );
+        case 'open-puzzle':
+          void openPuzzlePublicWorkDetail(intent.profileId, {
+            tab: intent.tab,
           });
-        return;
+          return;
+        case 'open-match3d':
+          void openMatch3DPublicWorkDetail(intent.profileId);
+          return;
+        case 'open-square-hole':
+          void openSquareHolePublicWorkDetail(intent.profileId);
+          return;
+        case 'open-jump-hop':
+          void openJumpHopPublicWorkDetail(intent.profileId);
+          return;
+        case 'open-wooden-fish':
+          void openWoodenFishPublicWorkDetail(intent.profileId);
+          return;
+        case 'open-big-fish':
+          void refreshBigFishGallery()
+            .then((entries) => {
+              const matchedEntry = entries.find(
+                (entry) => entry.sourceSessionId === intent.sessionId,
+              );
+              if (matchedEntry) {
+                openPublicWorkDetail(
+                  mapBigFishWorkToPublicWorkDetail(matchedEntry),
+                );
+                return;
+              }
+              openPublicWorkDetail(
+                mapBigFishWorkToPublicWorkDetail(intent.fallbackWork),
+              );
+            })
+            .catch((error) => {
+              setBigFishError(
+                resolveBigFishErrorMessage(error, '进入大鱼吃小鱼作品失败。'),
+              );
+            });
+          return;
+        case 'open-rpg':
+          void openRpgPublicWorkDetail(intent.detail);
+          return;
+        default: {
+          const exhaustive: never = intent;
+          return exhaustive;
+        }
       }
-
-      const profileId = work.profileId ?? work.worldKey;
-      const ownerUserId = work.ownerUserId;
-      if (!ownerUserId || !profileId) {
-        return;
-      }
-
-      void openRpgPublicWorkDetail({
-        ownerUserId,
-        profileId,
-        publicWorkCode: null,
-        authorPublicUserCode: null,
-        visibility: 'published',
-        publishedAt: work.firstPlayedAt,
-        updatedAt: work.lastPlayedAt,
-        authorDisplayName: work.worldSubtitle,
-        worldName: work.worldTitle,
-        subtitle: work.worldSubtitle,
-        summaryText: '',
-        coverImageSrc: null,
-        themeMode: 'martial',
-        playableNpcCount: 0,
-        landmarkCount: 0,
-        playCount: 0,
-        remixCount: 0,
-        likeCount: 0,
-      });
     },
     [
       openMatch3DPublicWorkDetail,
diff --git a/src/components/platform-entry/platformPlayedWorkOpenModel.test.ts b/src/components/platform-entry/platformPlayedWorkOpenModel.test.ts
new file mode 100644
index 00000000..5d0b5083
--- /dev/null
+++ b/src/components/platform-entry/platformPlayedWorkOpenModel.test.ts
@@ -0,0 +1,205 @@
+import { describe, expect, test } from 'vitest';
+
+import type { ProfilePlayedWorkSummary } from '../../../packages/shared/src/contracts/runtime';
+import { resolvePlatformPlayedWorkOpenIntent } from './platformPlayedWorkOpenModel';
+
+function buildPlayedWork(
+  overrides: Partial<ProfilePlayedWorkSummary> = {},
+): ProfilePlayedWorkSummary {
+  return {
+    worldKey: 'custom:world-1',
+    ownerUserId: 'user-1',
+    profileId: 'world-1',
+    worldType: 'CUSTOM',
+    worldTitle: '潮雾列岛',
+    worldSubtitle: '旧灯塔与失控航路',
+    firstPlayedAt: '2026-04-18T12:00:00.000Z',
+    lastPlayedAt: '2026-04-19T12:00:00.000Z',
+    lastObservedPlayTimeMs: 12_000,
+    ...overrides,
+  };
+}
+
+describe('platformPlayedWorkOpenModel', () => {
+  test('opens puzzle played works with profile tab context', () => {
+    expect(
+      resolvePlatformPlayedWorkOpenIntent(
+        buildPlayedWork({
+          worldType: 'PUZZLE',
+          profileId: 'puzzle-profile-1',
+        }),
+      ),
+    ).toEqual({
+      type: 'open-puzzle',
+      profileId: 'puzzle-profile-1',
+      tab: 'profile',
+    });
+  });
+
+  test('falls back to worldKey prefixes when profile id is absent', () => {
+    const cases = [
+      ['puzzle:profile-1', 'open-puzzle', 'profile-1'],
+      ['match3d:profile-2', 'open-match3d', 'profile-2'],
+      ['square-hole:profile-3', 'open-square-hole', 'profile-3'],
+      ['jump-hop:profile-4', 'open-jump-hop', 'profile-4'],
+      ['wooden-fish:profile-5', 'open-wooden-fish', 'profile-5'],
+    ] as const;
+
+    for (const [worldKey, type, profileId] of cases) {
+      expect(
+        resolvePlatformPlayedWorkOpenIntent(
+          buildPlayedWork({
+            worldKey,
+            profileId: null,
+            worldType: null,
+          }),
+        ),
+      ).toMatchObject({ type, profileId });
+    }
+  });
+
+  test('keeps explicit profile id ahead of worldKey fallback', () => {
+    expect(
+      resolvePlatformPlayedWorkOpenIntent(
+        buildPlayedWork({
+          worldKey: 'jump-hop:key-profile',
+          profileId: 'explicit-profile',
+          worldType: null,
+        }),
+      ),
+    ).toMatchObject({
+      type: 'open-jump-hop',
+      profileId: 'explicit-profile',
+    });
+  });
+
+  test('supports played work type aliases for mini-games', () => {
+    const cases = [
+      ['match_3d', 'open-match3d'],
+      ['square_hole', 'open-square-hole'],
+      ['jump_hop', 'open-jump-hop'],
+      ['wooden_fish', 'open-wooden-fish'],
+    ] as const;
+
+    for (const [worldType, type] of cases) {
+      expect(
+        resolvePlatformPlayedWorkOpenIntent(
+          buildPlayedWork({
+            worldType,
+            profileId: `${worldType}-profile`,
+          }),
+        ),
+      ).toMatchObject({
+        type,
+        profileId: `${worldType}-profile`,
+      });
+    }
+  });
+
+  test('returns noop when a mini-game target is empty', () => {
+    expect(
+      resolvePlatformPlayedWorkOpenIntent(
+        buildPlayedWork({
+          worldKey: 'puzzle:key-profile',
+          profileId: '',
+          worldType: 'puzzle',
+        }),
+      ),
+    ).toEqual({
+      type: 'noop',
+      reason: 'missing-target',
+    });
+  });
+
+  test('builds big fish intent and fallback work for gallery misses', () => {
+    expect(
+      resolvePlatformPlayedWorkOpenIntent(
+        buildPlayedWork({
+          worldKey: 'big-fish:big-fish-session-1',
+          ownerUserId: null,
+          profileId: null,
+          worldType: 'big_fish',
+          worldTitle: '机械深海',
+          worldSubtitle: '',
+        }),
+      ),
+    ).toEqual({
+      type: 'open-big-fish',
+      sessionId: 'big-fish-session-1',
+      fallbackWork: {
+        workId: 'big-fish:big-fish-session-1',
+        sourceSessionId: 'big-fish-session-1',
+        ownerUserId: '',
+        authorDisplayName: '玩家',
+        title: '机械深海',
+        subtitle: '',
+        summary: '',
+        coverImageSrc: null,
+        status: 'published',
+        updatedAt: '2026-04-19T12:00:00.000Z',
+        publishReady: true,
+        levelCount: 0,
+        levelMainImageReadyCount: 0,
+        levelMotionReadyCount: 0,
+        backgroundReady: false,
+      },
+    });
+  });
+
+  test('opens unknown played work types as RPG detail when identity is complete', () => {
+    expect(
+      resolvePlatformPlayedWorkOpenIntent(
+        buildPlayedWork({
+          worldType: 'CUSTOM',
+          profileId: null,
+        }),
+      ),
+    ).toEqual({
+      type: 'open-rpg',
+      detail: {
+        ownerUserId: 'user-1',
+        profileId: 'custom:world-1',
+        publicWorkCode: null,
+        authorPublicUserCode: null,
+        visibility: 'published',
+        publishedAt: '2026-04-18T12:00:00.000Z',
+        updatedAt: '2026-04-19T12:00:00.000Z',
+        authorDisplayName: '旧灯塔与失控航路',
+        worldName: '潮雾列岛',
+        subtitle: '旧灯塔与失控航路',
+        summaryText: '',
+        coverImageSrc: null,
+        themeMode: 'martial',
+        playableNpcCount: 0,
+        landmarkCount: 0,
+        playCount: 0,
+        remixCount: 0,
+        likeCount: 0,
+      },
+    });
+  });
+
+  test('returns noop for RPG fallback when owner or profile is missing', () => {
+    expect(
+      resolvePlatformPlayedWorkOpenIntent(
+        buildPlayedWork({
+          ownerUserId: null,
+        }),
+      ),
+    ).toEqual({
+      type: 'noop',
+      reason: 'missing-target',
+    });
+    expect(
+      resolvePlatformPlayedWorkOpenIntent(
+        buildPlayedWork({
+          worldKey: '',
+          profileId: null,
+        }),
+      ),
+    ).toEqual({
+      type: 'noop',
+      reason: 'missing-target',
+    });
+  });
+});
diff --git a/src/components/platform-entry/platformPlayedWorkOpenModel.ts b/src/components/platform-entry/platformPlayedWorkOpenModel.ts
new file mode 100644
index 00000000..8e3ed856
--- /dev/null
+++ b/src/components/platform-entry/platformPlayedWorkOpenModel.ts
@@ -0,0 +1,212 @@
+import type { BigFishWorkSummary } from '../../../packages/shared/src/contracts/bigFishWorkSummary';
+import type {
+  CustomWorldGalleryCard,
+  ProfilePlayedWorkSummary,
+} from '../../../packages/shared/src/contracts/runtime';
+
+export type PlatformPlayedWorkOpenIntent =
+  | {
+      type: 'noop';
+      reason: 'missing-target';
+    }
+  | {
+      type: 'open-puzzle';
+      profileId: string;
+      tab: 'profile';
+    }
+  | {
+      type: 'open-match3d';
+      profileId: string;
+    }
+  | {
+      type: 'open-square-hole';
+      profileId: string;
+    }
+  | {
+      type: 'open-jump-hop';
+      profileId: string;
+    }
+  | {
+      type: 'open-wooden-fish';
+      profileId: string;
+    }
+  | {
+      type: 'open-big-fish';
+      sessionId: string;
+      fallbackWork: BigFishWorkSummary;
+    }
+  | {
+      type: 'open-rpg';
+      detail: CustomWorldGalleryCard;
+    };
+
+function normalizePlayedWorkWorldType(worldType: string | null) {
+  return (worldType ?? '').toLowerCase();
+}
+
+function resolvePlayedWorkTargetId(
+  work: ProfilePlayedWorkSummary,
+  worldKeyPrefix: string,
+) {
+  const prefixedWorldKey = `${worldKeyPrefix}:`;
+  return (
+    work.profileId ??
+    (work.worldKey.startsWith(prefixedWorldKey)
+      ? work.worldKey.slice(prefixedWorldKey.length)
+      : work.worldKey)
+  );
+}
+
+function resolvePlayedWorkProfileIntent<TIntent extends PlatformPlayedWorkOpenIntent>(
+  profileId: string,
+  intent: (profileId: string) => TIntent,
+) {
+  return profileId ? intent(profileId) : buildMissingPlayedWorkTargetIntent();
+}
+
+function buildMissingPlayedWorkTargetIntent(): PlatformPlayedWorkOpenIntent {
+  return {
+    type: 'noop',
+    reason: 'missing-target',
+  };
+}
+
+function buildPlayedBigFishFallbackWork(
+  work: ProfilePlayedWorkSummary,
+  sessionId: string,
+): BigFishWorkSummary {
+  return {
+    workId: `big-fish:${sessionId}`,
+    sourceSessionId: sessionId,
+    ownerUserId: work.ownerUserId ?? '',
+    authorDisplayName: work.worldSubtitle || '玩家',
+    title: work.worldTitle,
+    subtitle: work.worldSubtitle,
+    summary: work.worldSubtitle,
+    coverImageSrc: null,
+    status: 'published',
+    updatedAt: work.lastPlayedAt,
+    publishReady: true,
+    levelCount: 0,
+    levelMainImageReadyCount: 0,
+    levelMotionReadyCount: 0,
+    backgroundReady: false,
+  };
+}
+
+function buildPlayedRpgDetail(
+  work: ProfilePlayedWorkSummary,
+  profileId: string,
+  ownerUserId: string,
+): CustomWorldGalleryCard {
+  return {
+    ownerUserId,
+    profileId,
+    publicWorkCode: null,
+    authorPublicUserCode: null,
+    visibility: 'published',
+    publishedAt: work.firstPlayedAt,
+    updatedAt: work.lastPlayedAt,
+    authorDisplayName: work.worldSubtitle,
+    worldName: work.worldTitle,
+    subtitle: work.worldSubtitle,
+    summaryText: '',
+    coverImageSrc: null,
+    themeMode: 'martial',
+    playableNpcCount: 0,
+    landmarkCount: 0,
+    playCount: 0,
+    remixCount: 0,
+    likeCount: 0,
+  };
+}
+
+/** 收口个人“玩过作品”点击后的玩法打开意图，壳层只执行副作用。 */
+export function resolvePlatformPlayedWorkOpenIntent(
+  work: ProfilePlayedWorkSummary,
+): PlatformPlayedWorkOpenIntent {
+  const worldType = normalizePlayedWorkWorldType(work.worldType);
+
+  if (worldType === 'puzzle' || work.worldKey.startsWith('puzzle:')) {
+    const profileId = resolvePlayedWorkTargetId(work, 'puzzle');
+    return resolvePlayedWorkProfileIntent(profileId, (resolvedProfileId) => ({
+      type: 'open-puzzle',
+      profileId: resolvedProfileId,
+      tab: 'profile',
+    }));
+  }
+
+  if (
+    worldType === 'match3d' ||
+    worldType === 'match_3d' ||
+    work.worldKey.startsWith('match3d:')
+  ) {
+    const profileId = resolvePlayedWorkTargetId(work, 'match3d');
+    return resolvePlayedWorkProfileIntent(profileId, (resolvedProfileId) => ({
+      type: 'open-match3d',
+      profileId: resolvedProfileId,
+    }));
+  }
+
+  if (
+    worldType === 'square-hole' ||
+    worldType === 'square_hole' ||
+    work.worldKey.startsWith('square-hole:')
+  ) {
+    const profileId = resolvePlayedWorkTargetId(work, 'square-hole');
+    return resolvePlayedWorkProfileIntent(profileId, (resolvedProfileId) => ({
+      type: 'open-square-hole',
+      profileId: resolvedProfileId,
+    }));
+  }
+
+  if (
+    worldType === 'jump-hop' ||
+    worldType === 'jump_hop' ||
+    work.worldKey.startsWith('jump-hop:')
+  ) {
+    const profileId = resolvePlayedWorkTargetId(work, 'jump-hop');
+    return resolvePlayedWorkProfileIntent(profileId, (resolvedProfileId) => ({
+      type: 'open-jump-hop',
+      profileId: resolvedProfileId,
+    }));
+  }
+
+  if (
+    worldType === 'wooden-fish' ||
+    worldType === 'wooden_fish' ||
+    work.worldKey.startsWith('wooden-fish:')
+  ) {
+    const profileId = resolvePlayedWorkTargetId(work, 'wooden-fish');
+    return resolvePlayedWorkProfileIntent(profileId, (resolvedProfileId) => ({
+      type: 'open-wooden-fish',
+      profileId: resolvedProfileId,
+    }));
+  }
+
+  if (
+    worldType === 'big_fish' ||
+    worldType === 'big-fish' ||
+    work.worldKey.startsWith('big-fish:')
+  ) {
+    const sessionId = resolvePlayedWorkTargetId(work, 'big-fish');
+    return sessionId
+      ? {
+          type: 'open-big-fish',
+          sessionId,
+          fallbackWork: buildPlayedBigFishFallbackWork(work, sessionId),
+        }
+      : buildMissingPlayedWorkTargetIntent();
+  }
+
+  const profileId = work.profileId ?? work.worldKey;
+  const ownerUserId = work.ownerUserId;
+  if (!ownerUserId || !profileId) {
+    return buildMissingPlayedWorkTargetIntent();
+  }
+
+  return {
+    type: 'open-rpg',
+    detail: buildPlayedRpgDetail(work, profileId, ownerUserId),
+  };
+}