diff --git a/.gitignore b/.gitignore
index 574e835..1352886 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ node_modules
 .pnpm-store
 dist
 .DS_Store
+*.tsbuildinfo
diff --git a/AGENTS.md b/AGENTS.md
index ccd8220..108f7c6 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -28,7 +28,7 @@ This means NovAI should gradually move away from a simple "single prompt -> sing
 
 For implementation reference and comparative study, keep this external repository available next to the NovAI repo:
 
-- `/Users/honlnk/project/claude-code-sound`
+- `/Users/honlnk/project/claude-code`
 
 This repository is intentionally cloned outside the NovAI git repository so that:
 
diff --git a/CLAUDE.md b/CLAUDE.md
index bb17f54..0d8741b 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -31,11 +31,11 @@ packages/core  @novai/core  → 业务逻辑层（无框架依赖，纯 TypeScri
 
 **数据流：** `Vue Component → Pinia Store → Service → Core Domain`
 
-- **app/src/stores/** — 三个 Pinia store：`project`（项目/文件状态）、`chat`（Agent 会话/事件流）、`settings`（配置/模型）
-- **core/src/services/** — Service 层桥接 core 类型和 UI 视图类型，管理内存中的项目运行时注册表
-- **core/src/core/agent/** — Agent 循环：组装消息 → LLM 流式调用 → 解析 tool_calls → 执行工具 → 循环（最多 8 轮）
-- **core/src/core/tools/** — 7 个文件工具（ReadFile/EditFile/CreateFile/RenameFile/DeleteFile/ListDirectory/FindFiles），全部基于浏览器 File System Access API
-- **core/src/core/rag/** — RAG 管线（规划中/部分实现）
+- **packages/app/src/stores/** — 三个 Pinia store：`project`（项目/文件状态）、`chat`（Agent 会话/事件流）、`settings`（配置/模型）
+- **packages/core/src/services/** — Service 层桥接 core 类型和 UI 视图类型，管理内存中的项目运行时注册表
+- **packages/core/src/core/agent/** — Agent 循环：组装消息 → LLM 流式调用 → 解析 tool_calls → 执行工具 → 循环（最多 8 轮）
+- **packages/core/src/core/tools/** — 7 个文件工具（ReadFile/EditFile/CreateFile/RenameFile/DeleteFile/ListDirectory/FindFiles），全部基于浏览器 File System Access API；Agent 额外暴露 `RagSearch` 作为只读检索工具
+- **packages/core/src/core/rag/** — RAG 管线（IndexedDB 记录 + 手写 cosineSimilarity 的过渡召回，已接入可选 Rerank；正式 Orama 召回待补齐）
 
 ## Key Patterns
 
@@ -43,6 +43,7 @@ packages/core  @novai/core  → 业务逻辑层（无框架依赖，纯 TypeScri
 - **API 代理：** Vite dev server 内置 `/api-proxy` 中间件，通过 `x-target-base` header 转发请求到 LLM/Embedding API，解决浏览器 CORS 限制。
 - **@novai/core 无构建步骤：** app 直接通过源码导入 core（见 core/package.json exports map），不需要先构建 core。
 - **Agent 事件流：** AgentService 发出 `AgentUiEvent` 流供 UI 消费，实现流式响应展示。
+- **Agent LLM fallback：** 流式 tool_calls 解析异常或流式响应空闲超时时，会回退到非流式请求；相关行为已有 Vitest 覆盖。
 
 ## Commit Convention
 
@@ -57,4 +58,4 @@ packages/core  @novai/core  → 业务逻辑层（无框架依赖，纯 TypeScri
 
 - Node.js 18+, pnpm 10+
 - 浏览器需支持 File System Access API（仅 Chromium）
-- `docs/` 是 git submodule，指向 NovAI-document 仓库
+- `docs/` 是 git submodule，指向 NovAI-document 仓库；文档按 `product/`、`architecture/`、`decisions/`、`project/` 分层维护
diff --git a/INTERFACE.md b/INTERFACE.md
index ad712be..b74e035 100644
--- a/INTERFACE.md
+++ b/INTERFACE.md
@@ -1,6 +1,6 @@
 # NovAI UI 接口说明
 
-最后更新：2026-05-01
+最后更新：2026-06-12
 
 本文档说明当前 NovAI 代码中 UI 层应如何使用项目能力。它面向前端协作者，重点回答三个问题：
 
@@ -14,16 +14,16 @@
 
 约定如下：
 
-- UI 页面优先使用 `src/stores/*`。
-- Store 通过 `src/services/*` 调用 core 能力。
-- 页面和组件不要直接 import `src/core/*`。
+- UI 页面优先使用 `packages/app/src/stores/*`。
+- Store 通过 `packages/core/src/services/*` 调用 core 能力。
+- 页面和组件不要直接 import `packages/core/src/core/*`。
 - UI 不直接持有 `FileSystemDirectoryHandle` 或 `ProjectSnapshot`。
-- 项目、文件、会话、Agent 事件都通过 `src/services/types.ts` 中的 view type 暴露。
+- 项目、文件、会话、Agent 事件都通过 `packages/core/src/services/types.ts` 中的 view type 暴露。
 
 当前已经完成迁移验证：
 
-- `src/views/SessionTestView.vue`
-- `src/views/TestLabView.vue`
+- `packages/app/src/views/SessionTestView.vue`
+- `packages/app/src/views/TestLabView.vue`
 
 ## 推荐调用路径
 
@@ -148,7 +148,7 @@ const result = await chatStore.runServiceTurn({
 
 ## Service 入口
 
-所有 service 都在 `src/services/` 下。
+所有 service 都在 `packages/core/src/services/` 下。
 
 | 文件 | 职责 |
 |:-----|:-----|
@@ -170,7 +170,7 @@ const result = await chatStore.runServiceTurn({
 核心接口类型统一放在：
 
 ```txt
-src/services/types.ts
+packages/core/src/services/types.ts
 ```
 
 常用类型：
@@ -227,7 +227,7 @@ type AgentUiEvent =
 
 - 用户消息
 - 上下文摘要
-- assistant 流式输出
+- assistant 文本消息
 - 工具调用记录
 - 工具结果记录
 - 文件变更
@@ -275,6 +275,7 @@ chatStore.syncDefaultTarget(project.id, projectStore.activeFile?.path)
 
 ```txt
 chapters/chapter-001.md
+chapters/第001章.txt
 prompts/system.md
 elements/characters/foo.md
 ```
@@ -315,15 +316,16 @@ function resolvePreferredPath(changes: ChangedFileView[]) {
 - 文件 diff 预览尚未实现。
 - `changedFiles` 仍是 service 层推导，不是工具层结构化输出。
 - Agent 会话还没有持久化。
-- RAG 调试接口已存在，但 `RagSearch` 尚未作为正式 Agent 工具接入。
-- 要素提取当前仍是预览/占位能力。
+- `RagSearch` 已作为正式 Agent 工具接入，但真实创作任务中的触发率和召回质量仍需验证。
+- 要素提取已能规则型提取并写入 `elements/`，但还不是 LLM 结构化提取，也缺少用户确认、去重合并和覆盖策略。
+- 旧的 `pendingFileChange / confirmPendingFileChange` 确认流程代码仍有残留，但当前主工作流没有接入。
 
 ## 协作规则
 
 为了减少多人协作冲突，建议遵守：
 
 - UI 页面只依赖 stores 和 services。
-- 新 UI 组件不要直接 import `src/core/*`。
+- 新 UI 组件不要直接 import `packages/core/src/core/*`。
 - 新增 UI 需要的数据，优先扩展 `services/types.ts` 和 mapper。
 - core 内部结构变化时，尽量只修改 service / mapper，不让页面跟着改。
 - 如果需要新增业务动作，优先新增 service，再由 store 适配 UI 状态。
@@ -331,5 +333,5 @@ function resolvePreferredPath(changes: ChangedFileView[]) {
 更详细的设计记录见：
 
 ```txt
-docs/UI协作接口契约设计.md
+docs/architecture/UI协作接口契约设计.md
 ```
diff --git a/README.md b/README.md
index 2f1ba14..16751b5 100644
--- a/README.md
+++ b/README.md
@@ -53,10 +53,12 @@ NovAI 的思路是换一条路：
 尚未完整落地的核心能力包括：
 
 - 写工具执行前确认
+- 文件 diff 预览、Agent 停止运行与工具调用边界控制
 - LLM 结构化要素抽取、要素去重合并与覆盖确认
 - RAG 在真实创作任务中的召回质量验证与使用策略调优
 - 自动增量索引、索引过期提醒与更完整的降级策略
 - 近期章节上下文拼装
+- Agent 会话持久化与上下文压缩
 - Rerank 精排与更完整的创作工作流
 
 ## MVP 目标
@@ -82,6 +84,7 @@ NovAI 采用“一个文件夹就是一个小说项目”的思路。当前默
 ├── elements/
 │   ├── characters/
 │   ├── locations/
+│   ├── entities/
 │   ├── timeline/
 │   ├── plots/
 │   └── worldbuilding/
@@ -185,15 +188,20 @@ pnpm typecheck
 
 ## 文档
 
-项目文档主要放在 [`docs/`](./docs)：
+项目文档主要放在 [`docs/`](./docs)，当前按用途分为五类：
+
+- [`docs/product/`](./docs/product)：产品愿景、AI 功能需求、UI 设计
+- [`docs/architecture/`](./docs/architecture)：技术架构、Agent Loop、工具系统、RAG、UI 接口契约
+- [`docs/decisions/`](./docs/decisions)：阶段性技术和产品决策记录
+- [`docs/plans/`](./docs/plans)：阶段性功能计划和重构计划
+- [`docs/project/`](./docs/project)：路线图、MVP、当前进度、开发日志
+
+常用入口：
 
-- [`docs/NovAI产品规划.md`](./docs/NovAI产品规划.md)：产品定位与核心思路
-- [`docs/AI功能需求说明书.md`](./docs/AI功能需求说明书.md)：AI 功能需求
-- [`docs/UI设计文档.md`](./docs/UI设计文档.md)：界面与交互设计
-- [`docs/技术架构设计.md`](./docs/技术架构设计.md)：技术选型与架构说明
-- [`docs/project/项目总览.md`](./docs/project/项目总览.md)：项目阶段与目标
-- [`docs/project/MVP清单.md`](./docs/project/MVP清单.md)：MVP 范围与执行顺序
 - [`docs/project/当前进度.md`](./docs/project/当前进度.md)：开发推进情况
+- [`docs/project/项目总览.md`](./docs/project/项目总览.md)：项目阶段与目标
+- [`docs/product/产品愿景.md`](./docs/product/产品愿景.md)：产品定位与核心思路
+- [`docs/architecture/技术架构设计.md`](./docs/architecture/技术架构设计.md)：技术选型与架构说明
 - [`INTERFACE.md`](./INTERFACE.md)：当前 UI 协作接口、stores/services 使用入口
 
 ## 仓库目标
diff --git a/docs b/docs
index 04768ae..1e1b571 160000
--- a/docs
+++ b/docs
@@ -1 +1 @@
-Subproject commit 04768ae19ef26aab28221f23808ed91248a79ee6
+Subproject commit 1e1b571ed26967e46e2e4f0406c1e687d1141788
diff --git a/packages/app/src/app/router.ts b/packages/app/src/app/router.ts
index 77dfbae..24ee20a 100644
--- a/packages/app/src/app/router.ts
+++ b/packages/app/src/app/router.ts
@@ -3,8 +3,6 @@ import { createRouter, createWebHistory } from 'vue-router'
 import HomeView from '../views/HomeView.vue'
 import ProjectView from '../views/ProjectView.vue'
 import SettingsView from '../views/SettingsView.vue'
-import SessionTestView from '../views/SessionTestView.vue'
-import TestLabView from '../views/TestLabView.vue'
 
 export const router = createRouter({
   history: createWebHistory(import.meta.env.BASE_URL),
@@ -24,15 +22,5 @@ export const router = createRouter({
       name: 'settings',
       component: SettingsView,
     },
-    {
-      path: '/test',
-      name: 'test',
-      component: TestLabView,
-    },
-    {
-      path: '/session-test',
-      name: 'session-test',
-      component: SessionTestView,
-    },
   ],
 })
diff --git a/packages/app/src/components/layout/ChatPanel.vue b/packages/app/src/components/layout/ChatPanel.vue
index 2baf617..e3841e9 100644
--- a/packages/app/src/components/layout/ChatPanel.vue
+++ b/packages/app/src/components/layout/ChatPanel.vue
@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { nextTick, ref, watch } from 'vue'
 import { useChatStore } from '../../stores/chat'
+import { shouldSubmitOnEnter } from '../../composables/keyboard'
 import MessageItem from '../chat/MessageItem.vue'
 
 defineProps<{
@@ -58,7 +59,7 @@ async function handleSend() {
 
 function handleKeydown(event: KeyboardEvent) {
   // Enter 发送，Shift+Enter 换行
-  if (event.key === 'Enter' && !event.shiftKey) {
+  if (shouldSubmitOnEnter(event)) {
     event.preventDefault()
     handleSend()
   }
diff --git a/packages/app/src/components/layout/ContentPanel.vue b/packages/app/src/components/layout/ContentPanel.vue
index 69b4bb4..7b494fc 100644
--- a/packages/app/src/components/layout/ContentPanel.vue
+++ b/packages/app/src/components/layout/ContentPanel.vue
@@ -30,7 +30,7 @@ const canExtractElements = computed(() => {
   return Boolean(
     props.file &&
     props.file.path.startsWith('chapters/') &&
-    props.file.name.endsWith('.txt') &&
+    /\.(txt|md)$/i.test(props.file.name) &&
     props.file.content.trim(),
   )
 })
@@ -83,11 +83,12 @@ async function handlePreviewElements() {
   }
 
   isExtracting.value = true
-  extractionStatus.value = '正在提取要素...'
+  extractionStatus.value = '正在用 AI 提取要素...'
   elementWriteResult.value = null
 
   try {
     extractionPreview.value = await previewElementExtraction({
+      projectId: props.projectId,
       chapterContent: props.file.content,
       chapterPath: props.file.path,
     })
@@ -96,7 +97,8 @@ async function handlePreviewElements() {
       ? `已提取 ${extractionCount.value} 个候选要素`
       : '未提取到可写入的要素'
   } catch (error) {
-    extractionStatus.value = error instanceof Error ? error.message : '要素提取失败'
+    const message = error instanceof Error ? error.message : '要素提取失败'
+    extractionStatus.value = `AI 提取失败：${message}。请检查设置页的 LLM 配置。`
   } finally {
     isExtracting.value = false
   }
@@ -139,6 +141,7 @@ function resetExtractionState() {
 function countExtractionItems(result: ElementExtractionResultView) {
   return result.characters.length +
     result.locations.length +
+    result.entities.length +
     result.timeline.length +
     result.plots.length +
     result.worldbuilding.length
@@ -259,7 +262,7 @@ function countExtractionItems(result: ElementExtractionResultView) {
 
           <div
             v-if="extractionPreview"
-            class="grid grid-cols-5 gap-1 text-center text-xs"
+            class="grid grid-cols-3 gap-1 text-center text-xs"
           >
             <div class="rounded-md bg-gray-50 px-1 py-1">
               <div class="font-semibold text-gray-800">{{ extractionPreview.characters.length }}</div>
@@ -269,6 +272,10 @@ function countExtractionItems(result: ElementExtractionResultView) {
               <div class="font-semibold text-gray-800">{{ extractionPreview.locations.length }}</div>
               <div class="text-gray-500">地点</div>
             </div>
+            <div class="rounded-md bg-gray-50 px-1 py-1">
+              <div class="font-semibold text-gray-800">{{ extractionPreview.entities.length }}</div>
+              <div class="text-gray-500">实体</div>
+            </div>
             <div class="rounded-md bg-gray-50 px-1 py-1">
               <div class="font-semibold text-gray-800">{{ extractionPreview.plots.length }}</div>
               <div class="text-gray-500">情节</div>
diff --git a/packages/app/src/composables/keyboard.test.ts b/packages/app/src/composables/keyboard.test.ts
new file mode 100644
index 0000000..9b448f9
--- /dev/null
+++ b/packages/app/src/composables/keyboard.test.ts
@@ -0,0 +1,27 @@
+import { describe, expect, it } from 'vitest'
+import { isImeComposing, shouldSubmitOnEnter } from './keyboard'
+
+function keyEvent(overrides: Partial<KeyboardEvent>): KeyboardEvent {
+  return {
+    key: '',
+    shiftKey: false,
+    isComposing: false,
+    keyCode: 0,
+    ...overrides,
+  } as KeyboardEvent
+}
+
+describe('keyboard helpers', () => {
+  it('detects IME composition events', () => {
+    expect(isImeComposing(keyEvent({ isComposing: true }))).toBe(true)
+    expect(isImeComposing(keyEvent({ keyCode: 229 }))).toBe(true)
+    expect(isImeComposing(keyEvent({ isComposing: false, keyCode: 13 }))).toBe(false)
+  })
+
+  it('submits only for a plain Enter outside IME composition', () => {
+    expect(shouldSubmitOnEnter(keyEvent({ key: 'Enter' }))).toBe(true)
+    expect(shouldSubmitOnEnter(keyEvent({ key: 'Enter', shiftKey: true }))).toBe(false)
+    expect(shouldSubmitOnEnter(keyEvent({ key: 'Enter', isComposing: true }))).toBe(false)
+    expect(shouldSubmitOnEnter(keyEvent({ key: 'Enter', keyCode: 229 }))).toBe(false)
+  })
+})
diff --git a/packages/app/src/composables/keyboard.ts b/packages/app/src/composables/keyboard.ts
new file mode 100644
index 0000000..33e4584
--- /dev/null
+++ b/packages/app/src/composables/keyboard.ts
@@ -0,0 +1,9 @@
+type KeyboardLikeEvent = Pick<KeyboardEvent, 'key' | 'shiftKey' | 'isComposing' | 'keyCode'>
+
+export function isImeComposing(event: KeyboardLikeEvent): boolean {
+  return event.isComposing || event.keyCode === 229
+}
+
+export function shouldSubmitOnEnter(event: KeyboardLikeEvent): boolean {
+  return event.key === 'Enter' && !event.shiftKey && !isImeComposing(event)
+}
diff --git a/packages/app/src/env.d.ts b/packages/app/src/env.d.ts
index e6d8ac3..b9773fd 100644
--- a/packages/app/src/env.d.ts
+++ b/packages/app/src/env.d.ts
@@ -14,6 +14,7 @@ interface FilePickerOptions {
 interface FileSystemHandle {
   readonly kind: 'file' | 'directory'
   readonly name: string
+  remove?(options?: { recursive?: boolean }): Promise<void>
 }
 
 interface FileSystemWritableFileStream {
diff --git a/packages/app/src/stores/chat.ts b/packages/app/src/stores/chat.ts
index 92f574d..70fb58f 100644
--- a/packages/app/src/stores/chat.ts
+++ b/packages/app/src/stores/chat.ts
@@ -3,7 +3,6 @@ import { defineStore } from 'pinia'
 
 import {
   createSession as createAgentSession,
-  deriveTargetFromPath,
   runTurn as runAgentTurn,
 } from '@novai/core/services/agent-service'
 
@@ -12,7 +11,6 @@ import type {
   ChangedFileView,
   ChatMessageView,
   ChatSessionView,
-  ChatTargetView,
   RunAgentTurnInput,
   RunAgentTurnResult,
 } from '@novai/core/services/types'
@@ -22,10 +20,8 @@ export const useChatStore = defineStore('chat', () => {
   const agentEvents = ref<AgentUiEvent[]>([])
   const changedFiles = ref<ChangedFileView[]>([])
   const runStatus = ref('还没有开始执行。')
-  const defaultTarget = ref<ChatTargetView | null>(null)
 
   const hasSessionView = computed(() => sessionView.value !== null)
-  const currentTarget = computed(() => defaultTarget.value)
   const messages = computed<ChatMessageView[]>(() => sessionView.value?.messages ?? [])
 
   async function ensureSessionView(projectId: string) {
@@ -70,21 +66,6 @@ export const useChatStore = defineStore('chat', () => {
     }
   }
 
-  function syncDefaultTarget(projectId?: string, activeFilePath?: string | null) {
-    void projectId
-    defaultTarget.value = deriveTargetFromPath(activeFilePath)
-  }
-
-  function resetSession(projectId?: string) {
-    sessionView.value = null
-    agentEvents.value = []
-    changedFiles.value = []
-    if (!projectId) {
-      defaultTarget.value = null
-    }
-    runStatus.value = '还没有开始执行。'
-  }
-
   function setRunStatus(nextStatus: string) {
     runStatus.value = nextStatus
   }
@@ -146,14 +127,10 @@ export const useChatStore = defineStore('chat', () => {
     sessionView,
     runStatus,
     hasSessionView,
-    currentTarget,
-    defaultTarget,
     createSession,
     ensureSessionView,
     sendMessage,
     runServiceTurn,
-    syncDefaultTarget,
-    resetSession,
     setRunStatus,
   }
 })
diff --git a/packages/app/src/stores/project.ts b/packages/app/src/stores/project.ts
index 9011cf0..f56b7df 100644
--- a/packages/app/src/stores/project.ts
+++ b/packages/app/src/stores/project.ts
@@ -4,11 +4,13 @@ import { defineStore } from 'pinia'
 import {
   closeProject,
   createProject,
+  deleteRecentProject,
   forgetLastProject,
   getLastProjectSummary,
   getRecentProjects,
   isProjectAccessSupported,
   openProject,
+  restoreRecentProject,
   restoreLastProject,
 } from '@novai/core/services/project-service'
 import {
@@ -69,6 +71,21 @@ export const useProjectStore = defineStore('project', () => {
     })
   }
 
+  async function openRecentProject(projectId: string) {
+    return runProjectAction(async () => {
+      const project = await restoreRecentProject(projectId)
+
+      if (!project) {
+        statusMessage.value = '没有找到该最近项目，或目录权限尚未授权'
+        return null
+      }
+
+      await setCurrentProject(project)
+      statusMessage.value = `已打开最近项目「${project.name}」`
+      return project
+    })
+  }
+
   async function loadLastProjectSummary() {
     try {
       lastProjectSummary.value = await getLastProjectSummary()
@@ -104,6 +121,28 @@ export const useProjectStore = defineStore('project', () => {
     })
   }
 
+  async function removeRecentProject(projectId: string, options: { deleteDirectory?: boolean } = {}) {
+    return runProjectAction(async () => {
+      await deleteRecentProject(projectId, options)
+      recentProjects.value = recentProjects.value.filter((item) => item.id !== projectId)
+
+      if (lastProjectSummary.value?.projectId === projectId) {
+        lastProjectSummary.value = null
+      }
+
+      if (currentProject.value?.id === projectId) {
+        currentProject.value = null
+        activeFile.value = null
+      }
+
+      statusMessage.value = options.deleteDirectory
+        ? '已移除最近项目记录并删除本地目录'
+        : '已移除最近项目记录'
+
+      return true
+    })
+  }
+
   async function closeCurrentProject() {
     if (!currentProject.value) {
       statusMessage.value = '当前没有打开的项目'
@@ -212,7 +251,9 @@ export const useProjectStore = defineStore('project', () => {
     loadRecentProjects,
     openExistingProject,
     openFile,
+    openRecentProject,
     refreshTree,
+    removeRecentProject,
     restoreLastOpenedProject,
     updateCurrentProjectConfig,
   }
@@ -261,7 +302,7 @@ function toRecentProject(project: ProjectView): RecentProject {
 function countChapterFiles(nodes: ProjectFileNodeView[]): number {
   return nodes.reduce((total, node) => {
     if (node.kind === 'file') {
-      return node.path.startsWith('chapters/') && node.name.endsWith('.txt')
+      return node.path.startsWith('chapters/') && /\.(txt|md)$/i.test(node.name)
         ? total + 1
         : total
     }
diff --git a/packages/app/src/views/HomeView.vue b/packages/app/src/views/HomeView.vue
index a4463a2..06835e0 100644
--- a/packages/app/src/views/HomeView.vue
+++ b/packages/app/src/views/HomeView.vue
@@ -2,12 +2,16 @@
 import { onMounted, ref } from 'vue'
 import { useRouter } from 'vue-router'
 import { useProjectStore } from '../stores/project'
+import type { RecentProject } from '@novai/core/types/project'
 
 const router = useRouter()
 const projectStore = useProjectStore()
 const showCreateDialog = ref(false)
+const projectPendingDelete = ref<RecentProject | null>(null)
 const newProjectName = ref('')
 const isCreating = ref(false)
+const isDeleting = ref(false)
+const shouldDeleteDirectory = ref(false)
 
 onMounted(async () => {
   await projectStore.loadLastProjectSummary()
@@ -44,8 +48,44 @@ async function handleCreateProject() {
   }
 }
 
-function handleSelectProject(projectId: string) {
-  router.push(`/project/${projectId}`)
+async function handleSelectProject(projectId: string) {
+  const project = await projectStore.openRecentProject(projectId)
+  if (project) {
+    router.push(`/project/${project.id}`)
+  }
+}
+
+function handleAskDeleteProject(project: RecentProject) {
+  projectPendingDelete.value = project
+  shouldDeleteDirectory.value = false
+}
+
+function handleCancelDeleteProject() {
+  if (isDeleting.value) return
+
+  projectPendingDelete.value = null
+  shouldDeleteDirectory.value = false
+}
+
+async function handleConfirmDeleteProject() {
+  if (!projectPendingDelete.value) return
+
+  isDeleting.value = true
+  try {
+    const removed = await projectStore.removeRecentProject(projectPendingDelete.value.id, {
+      deleteDirectory: shouldDeleteDirectory.value,
+    })
+
+    if (!removed) {
+      return
+    }
+
+    projectPendingDelete.value = null
+    shouldDeleteDirectory.value = false
+    await projectStore.loadLastProjectSummary()
+  } finally {
+    isDeleting.value = false
+  }
 }
 </script>
 
@@ -62,6 +102,13 @@ function handleSelectProject(projectId: string) {
     <!-- 主体 -->
     <main class="flex-1 overflow-y-auto p-6">
       <div class="mx-auto max-w-4xl">
+        <div
+          v-if="projectStore.errorMessage"
+          class="mb-6 rounded-lg border border-red-200 bg-red-50 p-4 text-sm text-red-700"
+        >
+          {{ projectStore.errorMessage }}
+        </div>
+
         <!-- 恢复上次项目提示 -->
         <div
           v-if="projectStore.lastProjectSummary"
@@ -110,11 +157,24 @@ function handleSelectProject(projectId: string) {
             <div
               v-for="project in projectStore.recentProjects"
               :key="project.id"
-              class="cursor-pointer rounded-lg border border-gray-200 bg-white p-4 transition-all hover:border-gray-300 hover:shadow-sm"
+              class="group cursor-pointer rounded-lg border border-gray-200 bg-white p-4 transition-all hover:border-gray-300 hover:shadow-sm"
               @click="handleSelectProject(project.id)"
             >
-              <h3 class="font-medium text-gray-900">{{ project.name }}</h3>
-              <p class="mt-1 text-sm text-gray-500">{{ project.chapterCount }} 章</p>
+              <div class="flex items-start justify-between gap-3">
+                <div class="min-w-0">
+                  <h3 class="truncate font-medium text-gray-900">{{ project.name }}</h3>
+                  <p class="mt-1 text-sm text-gray-500">{{ project.chapterCount }} 章</p>
+                </div>
+                <button
+                  class="rounded-md p-1.5 text-gray-400 opacity-0 transition hover:bg-red-50 hover:text-red-600 focus:opacity-100 focus:outline-none focus:ring-2 focus:ring-red-200 group-hover:opacity-100"
+                  title="移除最近项目"
+                  @click.stop="handleAskDeleteProject(project)"
+                >
+                  <svg class="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 7h12M9 7V5a1 1 0 011-1h4a1 1 0 011 1v2m-8 0l1 12a1 1 0 001 .93h6a1 1 0 001-.93l1-12" />
+                  </svg>
+                </button>
+              </div>
             </div>
           </div>
         </div>
@@ -167,5 +227,46 @@ function handleSelectProject(projectId: string) {
         </div>
       </div>
     </div>
+
+    <!-- 删除最近项目对话框 -->
+    <div
+      v-if="projectPendingDelete"
+      class="fixed inset-0 z-50 flex items-center justify-center bg-black/50"
+      @click.self="handleCancelDeleteProject"
+    >
+      <div class="w-full max-w-md rounded-lg bg-white p-6 shadow-xl">
+        <h2 class="mb-2 text-lg font-semibold text-gray-900">移除最近项目</h2>
+        <p class="mb-4 text-sm text-gray-600">
+          要从最近项目中移除「{{ projectPendingDelete.name }}」吗？
+        </p>
+        <label class="mb-5 flex items-start gap-3 rounded-lg border border-red-100 bg-red-50 p-3">
+          <input
+            v-model="shouldDeleteDirectory"
+            class="mt-0.5 h-4 w-4 rounded border-gray-300 text-red-600 focus:ring-red-500"
+            type="checkbox"
+          />
+          <span>
+            <span class="block text-sm font-medium text-red-900">同步删除本地项目目录</span>
+            <span class="mt-1 block text-sm text-red-700">勾选后会删除该项目文件夹及其中所有文件。</span>
+          </span>
+        </label>
+        <div class="flex justify-end gap-3">
+          <button
+            class="rounded-lg border border-gray-300 px-4 py-2 text-sm font-medium text-gray-700 transition-colors hover:bg-gray-50 disabled:opacity-50"
+            :disabled="isDeleting"
+            @click="handleCancelDeleteProject"
+          >
+            取消
+          </button>
+          <button
+            class="rounded-lg bg-red-600 px-4 py-2 text-sm font-medium text-white transition-colors hover:bg-red-700 disabled:opacity-50"
+            :disabled="isDeleting"
+            @click="handleConfirmDeleteProject"
+          >
+            {{ isDeleting ? '处理中...' : '确认移除' }}
+          </button>
+        </div>
+      </div>
+    </div>
   </div>
 </template>
diff --git a/packages/app/src/views/ProjectView.vue b/packages/app/src/views/ProjectView.vue
index 7f703b1..75c8a30 100644
--- a/packages/app/src/views/ProjectView.vue
+++ b/packages/app/src/views/ProjectView.vue
@@ -26,7 +26,8 @@ onMounted(async () => {
   // 如果没有当前项目，尝试恢复
   if (!projectStore.currentProject) {
     await projectStore.loadLastProjectSummary()
-    const restored = await projectStore.restoreLastOpenedProject()
+    const restored = await projectStore.openRecentProject(projectId.value)
+      || await projectStore.restoreLastOpenedProject()
     if (!restored || restored.id !== projectId.value) {
       router.push('/')
       return
diff --git a/packages/app/src/views/SessionTestView.vue b/packages/app/src/views/SessionTestView.vue
deleted file mode 100644
index 7062384..0000000
--- a/packages/app/src/views/SessionTestView.vue
+++ /dev/null
@@ -1,398 +0,0 @@
-<script setup lang="ts">
-import { computed, onMounted, ref } from 'vue'
-
-import { useChatStore } from '../stores/chat'
-import { useProjectStore } from '../stores/project'
-import { useSettingsStore } from '../stores/settings'
-
-import type { ChangedFileView, ProjectFileNodeView } from '@novai/core/services/types'
-
-const projectName = ref('我的测试小说')
-const status = ref('这里用于验证第一阶段会话引擎。')
-const instruction = ref('把这一章结尾改得更紧张一点，并保持悬疑感。')
-const isBusy = ref(false)
-const chatStore = useChatStore()
-const projectStore = useProjectStore()
-const settingsStore = useSettingsStore()
-
-const currentProject = computed(() => projectStore.currentProject)
-const activeFile = computed(() => projectStore.activeFile)
-const lastProjectSummary = computed(() => projectStore.lastProjectSummary)
-const projectLabel = computed(() => currentProject.value?.rootName ?? '未选择项目')
-const canRestoreLastProject = computed(() => Boolean(lastProjectSummary.value && !currentProject.value))
-const groupedReadableFiles = computed(() => groupReadableFiles(flattenReadableFiles(currentProject.value?.files ?? [])))
-const currentTargetLabel = computed(() => {
-  if (!chatStore.currentTarget) {
-    return '未推导'
-  }
-
-  const target = chatStore.currentTarget
-  return target.primaryPath ? `${target.displayName} (${target.primaryPath})` : target.displayName
-})
-const toolMessages = computed(() =>
-  (chatStore.sessionView?.messages ?? []).filter(
-    (message) => message.kind === 'tool-call' || message.kind === 'tool-result',
-  ),
-)
-const errorMessages = computed(() =>
-  (chatStore.sessionView?.messages ?? []).filter((message) => message.kind === 'error'),
-)
-const contextMessages = computed(() =>
-  (chatStore.sessionView?.messages ?? []).filter((message) => message.kind === 'context-summary'),
-)
-const agentMessageCount = computed(() => chatStore.agentEvents.length)
-const toolCallCount = computed(() =>
-  (chatStore.sessionView?.messages ?? []).filter((message) => message.kind === 'tool-call').length,
-)
-const toolResultCount = computed(() =>
-  (chatStore.sessionView?.messages ?? []).filter((message) => message.kind === 'tool-result').length,
-)
-
-onMounted(() => {
-  void initializeLastProject()
-})
-
-async function initializeLastProject() {
-  if (!projectStore.isFileSystemSupported) {
-    return
-  }
-
-  const summary = await projectStore.loadLastProjectSummary()
-
-  if (summary) {
-    status.value = `检测到上次项目「${summary.name}」，可点击“恢复上次项目”继续。`
-  }
-}
-
-async function onCreateProject() {
-  await runTask(async () => {
-    const project = await projectStore.createNewProject(projectName.value.trim() || '我的测试小说')
-
-    if (project) {
-      await activateProjectView(`已创建并打开项目「${project.name}」`)
-    }
-  }, '创建项目失败')
-}
-
-async function onOpenProject() {
-  await runTask(async () => {
-    const project = await projectStore.openExistingProject()
-
-    if (project) {
-      await activateProjectView(`已打开项目「${project.name}」`)
-    }
-  }, '打开项目失败')
-}
-
-async function onRestoreLastProject() {
-  await runTask(async () => {
-    const project = await projectStore.restoreLastOpenedProject()
-
-    if (project) {
-      await activateProjectView(`已恢复上次项目「${project.name}」`)
-    }
-  }, '恢复上次项目失败')
-}
-
-async function onForgetLastProject() {
-  await runTask(async () => {
-    await projectStore.forgetLastOpenedProject()
-    status.value = '已忘记上次项目记录'
-  }, '忘记上次项目失败')
-}
-
-async function onOpenFile(path: string) {
-  if (!currentProject.value) {
-    status.value = '请先创建或打开项目'
-    return
-  }
-
-  await runTask(async () => {
-    await projectStore.openFile(path)
-    chatStore.syncDefaultTarget(currentProject.value!.id, activeFile.value?.path)
-    status.value = `已打开文件：${path}`
-  }, '打开文件失败')
-}
-
-async function onCloseProject() {
-  const project = currentProject.value
-
-  if (!project) {
-    status.value = '当前没有打开的项目'
-    return
-  }
-
-  await runTask(async () => {
-    await projectStore.closeCurrentProject()
-    chatStore.resetSession()
-    settingsStore.resetSettings()
-    status.value = `已关闭项目「${project.name}」`
-  }, '关闭项目失败')
-}
-
-async function onRunTurn() {
-  if (!currentProject.value) {
-    chatStore.setRunStatus('请先创建或打开项目')
-    return
-  }
-
-  if (!instruction.value.trim()) {
-    chatStore.setRunStatus('请先输入本轮用户意图')
-    return
-  }
-
-  await runTask(async () => {
-    chatStore.setRunStatus('正在执行本轮 Agent...')
-
-    const result = await chatStore.runServiceTurn({
-      projectId: currentProject.value!.id,
-      instruction: instruction.value.trim(),
-      activeFilePath: activeFile.value?.path,
-    })
-    await refreshProjectFiles(resolvePreferredPath(result.changedFiles))
-  }, '执行会话失败')
-}
-
-async function refreshProjectFiles(preferredPath?: string) {
-  if (!currentProject.value) {
-    return
-  }
-
-  await projectStore.refreshTree()
-
-  const nextPath = preferredPath || activeFile.value?.path || findFirstReadableFile(currentProject.value.files)
-  if (nextPath) {
-    await projectStore.openFile(nextPath)
-    chatStore.syncDefaultTarget(currentProject.value.id, activeFile.value?.path)
-  }
-}
-
-async function activateProjectView(message: string) {
-  const project = currentProject.value
-
-  if (!project) {
-    return
-  }
-
-  if (!activeFile.value && project.activeFilePath) {
-    await projectStore.openFile(project.activeFilePath)
-  }
-
-  await settingsStore.loadSettings(project.id)
-  chatStore.resetSession(project.id)
-  chatStore.syncDefaultTarget(project.id, activeFile.value?.path)
-  status.value = message
-}
-
-async function runTask(action: () => Promise<void>, fallback: string) {
-  if (!projectStore.isFileSystemSupported) {
-    status.value = '当前浏览器不支持 File System Access API，请使用 Chromium 内核浏览器。'
-    return
-  }
-
-  isBusy.value = true
-
-  try {
-    await action()
-  } catch (error) {
-    const message = error instanceof Error ? error.message : fallback
-    status.value = message
-    chatStore.setRunStatus(message)
-  } finally {
-    isBusy.value = false
-  }
-}
-
-function flattenReadableFiles(tree: ProjectFileNodeView[]) {
-  const files: Array<{ path: string; name: string }> = []
-  const stack = [...tree]
-
-  while (stack.length > 0) {
-    const node = stack.shift()
-
-    if (!node) {
-      continue
-    }
-
-    if (node.kind === 'file' && /\.(md|json|txt)$/i.test(node.name)) {
-      files.push({
-        path: node.path,
-        name: node.name,
-      })
-      continue
-    }
-
-    if (node.children?.length) {
-      stack.unshift(...node.children)
-    }
-  }
-
-  return files
-}
-
-function findFirstReadableFile(tree: ProjectFileNodeView[]) {
-  return flattenReadableFiles(tree)[0]?.path ?? null
-}
-
-function resolvePreferredPath(changes: ChangedFileView[]) {
-  const lastChange = changes[changes.length - 1]
-
-  if (!lastChange) {
-    return undefined
-  }
-
-  if (lastChange.type === 'created' || lastChange.type === 'updated') {
-    return lastChange.path
-  }
-
-  if (lastChange.type === 'renamed') {
-    return lastChange.toPath
-  }
-
-  return undefined
-}
-
-function groupReadableFiles(files: Array<{ path: string; name: string }>) {
-  const groups = new Map<string, Array<{ path: string; name: string }>>()
-
-  for (const file of files) {
-    const groupName = file.path.includes('/') ? file.path.split('/')[0] : 'root'
-    const group = groups.get(groupName) ?? []
-    group.push(file)
-    groups.set(groupName, group)
-  }
-
-  return Array.from(groups.entries())
-    .map(([groupName, items]) => ({
-      groupName,
-      items: items.sort((left, right) => left.path.localeCompare(right.path, 'zh-Hans-CN')),
-    }))
-    .sort((left, right) => left.groupName.localeCompare(right.groupName, 'zh-Hans-CN'))
-}
-</script>
-
-<template>
-  <main>
-    <h1>NovAI Session Lab</h1>
-    <p>第一阶段会话引擎测试页，先验证 Agent Loop，不追求正式视觉稿。</p>
-    <p>当前项目：{{ projectLabel }}</p>
-    <p>状态：{{ status }}</p>
-
-    <div>
-      <label>
-        <span>项目名称</span>
-        <input v-model="projectName" type="text" />
-      </label>
-      <button :disabled="isBusy" @click="onCreateProject">创建项目</button>
-      <button :disabled="isBusy" @click="onOpenProject">打开项目</button>
-      <button :disabled="isBusy || !currentProject" @click="onCloseProject">关闭项目</button>
-      <button :disabled="isBusy || !canRestoreLastProject" @click="onRestoreLastProject">恢复上次项目</button>
-      <button :disabled="isBusy || !lastProjectSummary" @click="onForgetLastProject">忘记上次项目</button>
-    </div>
-
-    <p v-if="lastProjectSummary">
-      上次项目：{{ lastProjectSummary.name }}（{{ lastProjectSummary.rootName }}）
-    </p>
-
-    <table width="100%">
-      <tbody>
-        <tr>
-          <td width="25%" valign="top">
-            <h2>项目文件</h2>
-            <div v-for="group in groupedReadableFiles" :key="group.groupName">
-              <h3>{{ group.groupName }}</h3>
-              <div v-for="item in group.items" :key="item.path">
-                <button @click="onOpenFile(item.path)">
-                  {{ activeFile?.path === item.path ? '当前: ' : '' }}{{ item.path }}
-                </button>
-              </div>
-            </div>
-          </td>
-
-          <td width="45%" valign="top">
-            <h2>会话区</h2>
-            <div>
-              <div v-if="(chatStore.sessionView?.messages?.length ?? 0) === 0">
-                <p>还没有会话消息。</p>
-              </div>
-
-              <article
-                v-for="message in chatStore.sessionView?.messages ?? []"
-                :key="message.id"
-              >
-                <strong>{{ message.role }} / {{ message.kind }}</strong>
-                <p v-if="message.kind === 'text'">{{ message.text }}</p>
-                <p v-else-if="message.kind === 'action-summary'">{{ message.text }}</p>
-                <p v-else-if="message.kind === 'tool-call'">{{ message.toolName }}: {{ message.text }}</p>
-                <p v-else-if="message.kind === 'tool-result'">{{ message.toolName }}: {{ message.text }}</p>
-                <p v-else-if="message.kind === 'context-summary'">{{ message.text }}</p>
-                <p v-else>{{ message.text }}</p>
-              </article>
-            </div>
-
-            <hr />
-
-            <div>
-              <p>{{ chatStore.runStatus }}</p>
-              <label>
-                <span>用户意图</span>
-                <textarea v-model="instruction" rows="6" cols="60" />
-              </label>
-              <div>
-                <button :disabled="isBusy" @click="onRunTurn">发送给 Agent</button>
-              </div>
-            </div>
-          </td>
-
-          <td width="30%" valign="top">
-            <h2>Agent 状态</h2>
-            <p>默认目标：{{ currentTargetLabel }}</p>
-            <p>会话状态：{{ chatStore.sessionView?.status ?? 'idle' }}</p>
-            <p>Agent 消息：{{ agentMessageCount }}</p>
-            <p>工具调用：{{ toolCallCount }}</p>
-            <p>工具结果：{{ toolResultCount }}</p>
-            <p>最近变更：{{ chatStore.changedFiles.length > 0 ? `${chatStore.changedFiles.length} 个文件` : '暂无' }}</p>
-
-            <h3>上下文摘要</h3>
-            <div v-if="contextMessages.length === 0">
-              <p>当前还没有上下文摘要。</p>
-            </div>
-            <ul v-else>
-              <li v-for="message in contextMessages" :key="message.id">
-                [{{ message.createdAt }}] {{ message.text }}
-              </li>
-            </ul>
-
-            <h3>工具轨迹</h3>
-            <div v-if="toolMessages.length === 0">
-              <p>当前还没有工具调用记录。</p>
-            </div>
-            <ul v-else>
-              <li v-for="message in toolMessages" :key="message.id">
-                <span v-if="message.kind === 'tool-call'">
-                  [{{ message.createdAt }}] CALL {{ 'toolName' in message ? message.toolName : '' }} -> {{ message.text }}
-                </span>
-                <span v-else>
-                  [{{ message.createdAt }}] RESULT {{ 'toolName' in message ? message.toolName : '' }} -> {{ message.text }}
-                </span>
-              </li>
-            </ul>
-
-            <h3>错误</h3>
-            <div v-if="errorMessages.length === 0">
-              <p>当前没有错误消息。</p>
-            </div>
-            <ul v-else>
-              <li v-for="message in errorMessages" :key="message.id">
-                [{{ message.createdAt }}] {{ message.text }}
-              </li>
-            </ul>
-
-            <h3>当前文件预览</h3>
-            <pre>{{ activeFile?.content || '请先打开一个文件' }}</pre>
-          </td>
-        </tr>
-      </tbody>
-    </table>
-  </main>
-</template>
diff --git a/packages/app/src/views/TestLabView.vue b/packages/app/src/views/TestLabView.vue
deleted file mode 100644
index 1d5ecff..0000000
--- a/packages/app/src/views/TestLabView.vue
+++ /dev/null
@@ -1,650 +0,0 @@
-<script setup lang="ts">
-import { computed, reactive, ref } from 'vue'
-
-import { previewElementExtraction, writeExtractedElements } from '@novai/core/services/element-service'
-import { writeChapter } from '@novai/core/services/file-service'
-import { streamGeneration } from '@novai/core/services/generation-service'
-import {
-  inspectIndex,
-  rebuildIndex,
-  runRagDebug,
-} from '@novai/core/services/rag-service'
-import { useProjectStore } from '../stores/project'
-import { useSettingsStore } from '../stores/settings'
-import type {
-  ElementExtractionResultView,
-  ElementWriteResultView,
-  GenerationContextDraftView,
-  ProjectConfigView,
-  ProjectFileNodeView,
-  ProjectIndexMetaView,
-  RetrievalExplanationView,
-} from '@novai/core/services/types'
-
-const projectName = ref('我的测试小说')
-const status = ref('这里先作为 AI 功能测试页使用。')
-const connectionStatus = ref('还没有测试连接。')
-const generationStatus = ref('还没有开始生成。')
-const isBusy = ref(false)
-const isStreaming = ref(false)
-const systemPrompt = ref('你是一名长篇小说写作助手，输出中文纯文本章节正文。')
-const instruction = ref('写一段测试内容：主角深夜走进废弃藏书楼，发现一封来自十年前的信。')
-const chapterFileName = ref('chapter-test.txt')
-const result = ref('')
-const lastSavedChapterPath = ref('')
-const rerankStatus = ref('还没有测试 Rerank 连接。')
-const indexStatusMessage = ref('还没有读取索引状态。')
-const ragStatus = ref('还没有执行 RAG 调试流程。')
-const extractionStatus = ref('还没有执行要素提取预览。')
-const elementWriteStatus = ref('还没有写入要素文件。')
-const projectIndexMeta = ref<ProjectIndexMetaView | null>(null)
-const ragDraft = ref<GenerationContextDraftView | null>(null)
-const retrievalExplanations = ref<RetrievalExplanationView[]>([])
-const extractionPreview = ref<ElementExtractionResultView | null>(null)
-const elementWriteResult = ref<ElementWriteResultView | null>(null)
-const projectStore = useProjectStore()
-const settingsStore = useSettingsStore()
-
-const configDraft = reactive<ProjectConfigView>({
-  version: 1,
-  project: {
-    name: '',
-    createdAt: '',
-    updatedAt: '',
-  },
-  llm: {
-    baseUrl: '',
-    apiKey: '',
-    model: '',
-  },
-  embedding: {
-    baseUrl: '',
-    apiKey: '',
-    model: '',
-  },
-  rerank: {
-    enabled: false,
-    baseUrl: '',
-    apiKey: '',
-    model: '',
-    mode: 'text',
-    topN: 8,
-  },
-  settings: {
-    generationRecentChapters: 3,
-    ragCandidateLimit: 20,
-    ragContextMaxItems: 8,
-    proofreadDefaultChapters: 3,
-    organizeDefaultChapters: 10,
-    conversationTokenLimit: 12000,
-    compressionKeepRecentTurns: 5,
-    embeddingTextVersion: 1,
-    enableBackgroundIndexing: true,
-    enableDebugLogging: false,
-  },
-})
-
-const currentProject = computed(() => projectStore.currentProject)
-const activeFile = computed(() => projectStore.activeFile)
-const projectLabel = computed(() => currentProject.value?.rootName ?? '未选择项目')
-const configPreview = computed(() => JSON.stringify(configDraft, null, 2))
-const readableFiles = computed(() => flattenReadableFiles(currentProject.value?.files ?? []))
-const groupedReadableFiles = computed(() => groupReadableFiles(readableFiles.value))
-const indexMetaPreview = computed(() => JSON.stringify(projectIndexMeta.value, null, 2))
-const ragDraftPreview = computed(() => JSON.stringify(ragDraft.value, null, 2))
-const extractionPreviewText = computed(() => JSON.stringify(extractionPreview.value, null, 2))
-const elementWritePreviewText = computed(() => JSON.stringify(elementWriteResult.value, null, 2))
-const retrievalExplanationPreview = computed(() => JSON.stringify(retrievalExplanations.value, null, 2))
-
-function applyConfigDraft(config: ProjectConfigView) {
-  configDraft.version = config.version
-  configDraft.project = { ...config.project }
-  configDraft.llm = { ...config.llm }
-  configDraft.embedding = { ...config.embedding }
-  configDraft.rerank = { ...config.rerank }
-  configDraft.settings = { ...config.settings }
-}
-
-async function onCreateProject() {
-  await runTask(async () => {
-    const project = await projectStore.createNewProject(projectName.value.trim() || '我的测试小说')
-
-    if (project) {
-      await activateProjectView(`已创建并打开项目「${project.name}」`)
-    }
-  }, '创建项目失败')
-}
-
-async function onOpenProject() {
-  await runTask(async () => {
-    const project = await projectStore.openExistingProject()
-
-    if (project) {
-      await activateProjectView(`已打开项目「${project.name}」`)
-    }
-  }, '打开项目失败')
-}
-
-async function onSaveConfig() {
-  if (!currentProject.value) {
-    status.value = '请先创建或打开项目'
-    return
-  }
-
-  await runTask(async () => {
-    const savedConfig = await settingsStore.saveConfig(currentProject.value!.id, {
-      project: {
-        ...configDraft.project,
-        name: configDraft.project.name || currentProject.value!.rootName,
-      },
-      llm: { ...configDraft.llm },
-      embedding: { ...configDraft.embedding },
-      rerank: { ...configDraft.rerank },
-      settings: { ...configDraft.settings },
-    })
-
-    if (savedConfig) {
-      applyConfigDraft(savedConfig)
-      projectStore.updateCurrentProjectConfig(savedConfig)
-      status.value = '配置已保存到 novel.config.json'
-    }
-  }, '保存配置失败')
-}
-
-async function onSaveSystemPrompt() {
-  if (!currentProject.value) {
-    status.value = '请先创建或打开项目'
-    return
-  }
-
-  await runTask(async () => {
-    await settingsStore.saveSystemPrompt(currentProject.value!.id, systemPrompt.value)
-    status.value = 'system.md 已保存'
-  }, '保存 system prompt 失败')
-}
-
-async function onTestLlm() {
-  connectionStatus.value = '正在测试 LLM 连接...'
-  const checked = await settingsStore.testLlmConfig(configDraft.llm)
-  connectionStatus.value = checked?.message ?? settingsStore.errorMessage
-}
-
-async function onTestEmbedding() {
-  connectionStatus.value = '正在测试 Embedding 连接...'
-  const checked = await settingsStore.testEmbeddingConfig(configDraft.embedding)
-  connectionStatus.value = checked?.message ?? settingsStore.errorMessage
-}
-
-async function onTestRerank() {
-  rerankStatus.value = '正在测试 Rerank 连接...'
-  const checked = await settingsStore.testRerankConfig(configDraft.rerank)
-  rerankStatus.value = checked?.message ?? settingsStore.errorMessage
-}
-
-async function onGenerate() {
-  result.value = ''
-  generationStatus.value = '正在发起流式生成...'
-  isStreaming.value = true
-
-  try {
-    await streamGeneration(
-      {
-        baseUrl: configDraft.llm.baseUrl,
-        apiKey: configDraft.llm.apiKey,
-        model: configDraft.llm.model,
-        systemPrompt: systemPrompt.value,
-        instruction: instruction.value,
-      },
-      (event) => {
-        if (event.type === 'start') {
-          generationStatus.value = '已连接模型，开始接收流式输出...'
-        }
-
-        if (event.type === 'delta') {
-          result.value += event.text
-        }
-
-        if (event.type === 'finish') {
-          result.value = event.text
-          generationStatus.value = '生成完成'
-          isStreaming.value = false
-        }
-
-        if (event.type === 'error') {
-          generationStatus.value = event.message
-          isStreaming.value = false
-        }
-      },
-    )
-  } catch (error) {
-    generationStatus.value = error instanceof Error ? error.message : '生成失败'
-    isStreaming.value = false
-  }
-}
-
-async function onSaveChapter() {
-  if (!currentProject.value) {
-    status.value = '请先创建或打开项目'
-    return
-  }
-
-  if (!result.value.trim()) {
-    generationStatus.value = '当前没有可保存的生成结果'
-    return
-  }
-
-  await runTask(async () => {
-    const savedFile = await writeChapter(currentProject.value!.id, chapterFileName.value, result.value)
-
-    lastSavedChapterPath.value = savedFile.path
-    chapterFileName.value = savedFile.name
-    generationStatus.value = `已保存章节：${savedFile.name}`
-    await refreshProjectFiles(savedFile.path)
-  }, '保存章节失败')
-}
-
-async function onInspectIndexMeta() {
-  if (!currentProject.value) {
-    indexStatusMessage.value = '请先创建或打开项目'
-    return
-  }
-
-  await runTask(async () => {
-    projectIndexMeta.value = await inspectIndex(currentProject.value!.id)
-    indexStatusMessage.value = projectIndexMeta.value
-      ? `已读取索引状态：${projectIndexMeta.value.status}`
-      : '当前项目还没有索引元信息'
-  }, '读取索引状态失败')
-}
-
-async function onBuildIndexSkeleton() {
-  if (!currentProject.value) {
-    indexStatusMessage.value = '请先创建或打开项目'
-    return
-  }
-
-  await runTask(async () => {
-    const built = await rebuildIndex(currentProject.value!.id)
-    projectIndexMeta.value = await inspectIndex(currentProject.value!.id)
-    indexStatusMessage.value = built.message
-  }, '触发索引构建失败')
-}
-
-async function onRunRagDemo() {
-  if (!currentProject.value) {
-    ragStatus.value = '请先创建或打开项目'
-    return
-  }
-
-  await runTask(async () => {
-    ragStatus.value = '正在执行 RAG 调试流程...'
-
-    const debug = await runRagDebug(currentProject.value!.id, instruction.value.trim())
-
-    ragDraft.value = debug.draft
-    retrievalExplanations.value = debug.explanations
-    ragStatus.value = debug.recalledCount > 0
-      ? `RAG 调试完成，当前召回 ${debug.recalledCount} 条候选`
-      : 'RAG 调试完成：当前索引为空，暂时没有可召回候选'
-  }, '执行 RAG 调试失败')
-}
-
-async function onPreviewElementExtraction() {
-  const chapterContent = result.value.trim() || activeFile.value?.content || ''
-
-  if (!chapterContent) {
-    extractionStatus.value = '请先生成章节结果，或先打开一个可预览文件'
-    return
-  }
-
-  await runTask(async () => {
-    extractionPreview.value = await previewElementExtraction({
-      chapterContent,
-      chapterPath: activeFile.value?.path || lastSavedChapterPath.value || '',
-      systemPrompt: systemPrompt.value,
-    })
-
-    const total =
-      extractionPreview.value.characters.length +
-      extractionPreview.value.locations.length +
-      extractionPreview.value.timeline.length +
-      extractionPreview.value.plots.length +
-      extractionPreview.value.worldbuilding.length
-
-    extractionStatus.value = total > 0
-      ? `要素提取预览完成，共得到 ${total} 条候选`
-      : '要素提取预览完成：当前仍是占位结果'
-  }, '执行要素提取预览失败')
-}
-
-async function onWriteExtractedElements() {
-  if (!currentProject.value) {
-    elementWriteStatus.value = '请先创建或打开项目'
-    return
-  }
-
-  if (!extractionPreview.value) {
-    elementWriteStatus.value = '请先执行要素提取预览'
-    return
-  }
-
-  await runTask(async () => {
-    elementWriteResult.value = await writeExtractedElements({
-      projectId: currentProject.value!.id,
-      extraction: extractionPreview.value!,
-    })
-
-    const changedCount = elementWriteResult.value.created.length + elementWriteResult.value.updated.length
-    elementWriteStatus.value = changedCount > 0
-      ? `已写入 ${changedCount} 个要素文件，索引已标记为过期`
-      : `没有新的要素文件需要写入，跳过 ${elementWriteResult.value.skipped.length} 个文件`
-
-    await refreshProjectFiles(elementWriteResult.value.created[0] || elementWriteResult.value.updated[0])
-    projectIndexMeta.value = await inspectIndex(currentProject.value!.id)
-  }, '写入要素文件失败')
-}
-
-async function activateProjectView(message: string) {
-  if (!currentProject.value) {
-    return
-  }
-
-  const settings = await settingsStore.loadSettings(currentProject.value.id)
-
-  if (settings) {
-    applyConfigDraft(settings.config)
-    systemPrompt.value = settings.systemPrompt
-  }
-
-  status.value = message
-}
-
-async function onOpenFile(path: string) {
-  if (!currentProject.value) {
-    status.value = '请先创建或打开项目'
-    return
-  }
-
-  await runTask(async () => {
-    await projectStore.openFile(path)
-    status.value = `已打开文件：${path}`
-  }, '读取文件失败')
-}
-
-async function refreshProjectFiles(preferredPath?: string) {
-  if (!currentProject.value) {
-    return
-  }
-
-  await projectStore.refreshTree()
-
-  const nextPath =
-    preferredPath ||
-    activeFile.value?.path ||
-    findFirstReadableFile(currentProject.value.files)
-
-  if (nextPath) {
-    await projectStore.openFile(nextPath)
-  }
-}
-
-async function runTask(action: () => Promise<void>, fallback: string) {
-  if (!projectStore.isFileSystemSupported) {
-    status.value = '当前浏览器不支持 File System Access API，请使用 Chromium 内核浏览器。'
-    return
-  }
-
-  isBusy.value = true
-
-  try {
-    await action()
-  } catch (error) {
-    status.value = error instanceof Error ? error.message : fallback
-  } finally {
-    isBusy.value = false
-  }
-}
-
-function flattenReadableFiles(tree: ProjectFileNodeView[]) {
-  const files: Array<{ path: string; name: string }> = []
-  const stack = [...tree]
-
-  while (stack.length > 0) {
-    const node = stack.shift()
-
-    if (!node) {
-      continue
-    }
-
-    if (node.kind === 'file' && /\.(md|json|txt)$/i.test(node.name)) {
-      files.push({
-        path: node.path,
-        name: node.name,
-      })
-      continue
-    }
-
-    if (node.children?.length) {
-      stack.unshift(...node.children)
-    }
-  }
-
-  return files
-}
-
-function findFirstReadableFile(tree: ProjectFileNodeView[]) {
-  return flattenReadableFiles(tree)[0]?.path ?? null
-}
-
-function groupReadableFiles(files: Array<{ path: string; name: string }>) {
-  const groups = new Map<string, Array<{ path: string; name: string }>>()
-
-  for (const file of files) {
-    // 测试页只做最粗粒度分组，按顶层目录展示就足够定位文件来源。
-    const groupName = file.path.includes('/') ? file.path.split('/')[0] : 'root'
-    const group = groups.get(groupName) ?? []
-    group.push(file)
-    groups.set(groupName, group)
-  }
-
-  return Array.from(groups.entries())
-    .map(([groupName, items]) => ({
-      groupName,
-      items: items.sort((left, right) => left.path.localeCompare(right.path, 'zh-Hans-CN')),
-    }))
-    .sort((left, right) => left.groupName.localeCompare(right.groupName, 'zh-Hans-CN'))
-}
-</script>
-
-<template>
-  <main>
-    <h1>NovAI Test Lab</h1>
-    <p>这个页面只用来测试 AI 功能，不做正式 UI。</p>
-    <p>{{ status }}</p>
-    <p>当前项目：{{ projectLabel }}</p>
-
-    <section>
-      <h2>项目入口</h2>
-      <label>
-        <span>项目名称</span>
-        <input v-model="projectName" type="text" style="width: 100%" />
-      </label>
-      <button type="button" :disabled="isBusy" @click="onCreateProject">创建小说</button>
-      <button type="button" :disabled="isBusy" @click="onOpenProject">打开小说</button>
-    </section>
-
-    <section>
-      <h2>配置读写</h2>
-      <label>
-        <span>项目名</span>
-        <input v-model="configDraft.project.name" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>LLM API 地址</span>
-        <input v-model="configDraft.llm.baseUrl" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>LLM API Key</span>
-        <input v-model="configDraft.llm.apiKey" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>LLM 模型</span>
-        <input v-model="configDraft.llm.model" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>Embedding API 地址</span>
-        <input v-model="configDraft.embedding.baseUrl" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>Embedding API Key</span>
-        <input v-model="configDraft.embedding.apiKey" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>Embedding 模型</span>
-        <input v-model="configDraft.embedding.model" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>Rerank 启用</span>
-        <input v-model="configDraft.rerank.enabled" type="checkbox" />
-      </label>
-      <label>
-        <span>Rerank API 地址</span>
-        <input v-model="configDraft.rerank.baseUrl" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>Rerank API Key</span>
-        <input v-model="configDraft.rerank.apiKey" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>Rerank 模型</span>
-        <input v-model="configDraft.rerank.model" type="text" style="width: 100%" />
-      </label>
-      <label>
-        <span>Rerank 模式</span>
-        <select v-model="configDraft.rerank.mode" style="width: 100%">
-          <option value="text">text</option>
-          <option value="multimodal">multimodal</option>
-        </select>
-      </label>
-      <label>
-        <span>Rerank TopN</span>
-        <input v-model.number="configDraft.rerank.topN" type="number" min="1" style="width: 100%" />
-      </label>
-      <label>
-        <span>RAG 最终上下文条数</span>
-        <input v-model.number="configDraft.settings.ragContextMaxItems" type="number" min="1" style="width: 100%" />
-      </label>
-      <label>
-        <span>Embedding 模板版本</span>
-        <input v-model.number="configDraft.settings.embeddingTextVersion" type="number" min="1" style="width: 100%" />
-      </label>
-      <label>
-        <span>后台索引更新</span>
-        <input v-model="configDraft.settings.enableBackgroundIndexing" type="checkbox" />
-      </label>
-      <label>
-        <span>开发调试日志</span>
-        <input v-model="configDraft.settings.enableDebugLogging" type="checkbox" />
-      </label>
-      <button type="button" :disabled="isBusy || !currentProject" @click="onSaveConfig">保存配置</button>
-      <pre>{{ configPreview }}</pre>
-    </section>
-
-    <section>
-      <h2>连接测试</h2>
-      <p>{{ connectionStatus }}</p>
-      <p>{{ rerankStatus }}</p>
-      <button type="button" @click="onTestLlm">测试 LLM</button>
-      <button type="button" @click="onTestEmbedding">测试 Embedding</button>
-      <button type="button" @click="onTestRerank">测试 Rerank</button>
-    </section>
-
-    <section>
-      <h2>System Prompt</h2>
-      <textarea v-model="systemPrompt" rows="8" style="width: 100%" />
-      <button type="button" :disabled="isBusy || !currentProject" @click="onSaveSystemPrompt">保存 system.md</button>
-    </section>
-
-    <section>
-      <h2>Instruction</h2>
-      <textarea v-model="instruction" rows="6" style="width: 100%" />
-    </section>
-
-    <section>
-      <h2>流式生成</h2>
-      <p>{{ generationStatus }}</p>
-      <button type="button" :disabled="isStreaming" @click="onGenerate">开始生成</button>
-    </section>
-
-    <section>
-      <h2>Result</h2>
-      <pre>{{ result || '还没有结果' }}</pre>
-    </section>
-
-    <section>
-      <h2>章节写入</h2>
-      <label>
-        <span>章节文件名</span>
-        <input v-model="chapterFileName" type="text" style="width: 100%" />
-      </label>
-      <button type="button" :disabled="isBusy || !currentProject || isStreaming" @click="onSaveChapter">保存到 chapters</button>
-      <p>{{ lastSavedChapterPath || '还没有保存章节文件' }}</p>
-    </section>
-
-    <section>
-      <h2>索引状态</h2>
-      <p>{{ indexStatusMessage }}</p>
-      <button type="button" :disabled="isBusy || !currentProject" @click="onInspectIndexMeta">读取索引状态</button>
-      <button type="button" :disabled="isBusy || !currentProject" @click="onBuildIndexSkeleton">触发索引构建</button>
-      <pre>{{ indexMetaPreview || '还没有索引状态数据' }}</pre>
-    </section>
-
-    <section>
-      <h2>RAG 调试</h2>
-      <p>{{ ragStatus }}</p>
-      <button type="button" :disabled="isBusy || !currentProject" @click="onRunRagDemo">执行 RAG 调试</button>
-      <h3>上下文草稿</h3>
-      <pre>{{ ragDraftPreview || '还没有 RAG 草稿数据' }}</pre>
-      <h3>命中解释</h3>
-      <pre>{{ retrievalExplanationPreview || '还没有命中解释数据' }}</pre>
-    </section>
-
-    <section>
-      <h2>要素提取预览</h2>
-      <p>{{ extractionStatus }}</p>
-      <button type="button" :disabled="isBusy" @click="onPreviewElementExtraction">执行要素提取预览</button>
-      <button type="button" :disabled="isBusy || !currentProject || !extractionPreview" @click="onWriteExtractedElements">写入 elements</button>
-      <p>{{ elementWriteStatus }}</p>
-      <pre>{{ extractionPreviewText || '还没有要素提取结果' }}</pre>
-      <h3>写入结果</h3>
-      <pre>{{ elementWritePreviewText || '还没有写入结果' }}</pre>
-    </section>
-
-    <section>
-      <h2>项目文档</h2>
-      <p>{{ readableFiles.length > 0 ? `共加载 ${readableFiles.length} 个可预览文件` : '当前项目还没有可预览文件' }}</p>
-      <div v-if="readableFiles.length > 0">
-        <div v-for="group in groupedReadableFiles" :key="group.groupName">
-          <h3>{{ group.groupName }}</h3>
-          <div>
-            <button
-              v-for="file in group.items"
-              :key="file.path"
-              type="button"
-              @click="onOpenFile(file.path)"
-            >
-              {{ file.name }} ({{ file.path }})
-            </button>
-          </div>
-        </div>
-      </div>
-    </section>
-
-    <section>
-      <h2>文件预览</h2>
-      <p>{{ activeFile ? activeFile.path : '还没有打开文件' }}</p>
-      <pre>{{ activeFile ? activeFile.content : '当前没有可预览的文件内容' }}</pre>
-    </section>
-
-  </main>
-</template>
diff --git a/packages/core/src/core/agent/prompt.ts b/packages/core/src/core/agent/prompt.ts
index dfc103c..e03c647 100644
--- a/packages/core/src/core/agent/prompt.ts
+++ b/packages/core/src/core/agent/prompt.ts
@@ -1,11 +1,27 @@
 import type { ChatTargetContext } from '../../types/chat'
 import type { ProjectSnapshot } from '../../types/project'
 
-export function buildAgentSystemPrompt(customPrompt?: string) {
-  const userPrompt = customPrompt?.trim()
+export function buildAgentSystemPrompt(input: {
+  systemPrompt?: string
+  scenePrompt?: string
+} = {}) {
+  const userPrompt = input.systemPrompt?.trim()
+  const scenePrompt = input.scenePrompt?.trim()
+
+  const head = scenePrompt
+    ? [
+        userPrompt || '你是 NovAI，一个通过工具读写本地小说项目文件的写作 Agent。',
+        '',
+        '---',
+        '',
+        '【当前场景提示词】',
+        '',
+        scenePrompt,
+      ].join('\n')
+    : userPrompt || '你是 NovAI，一个通过工具读写本地小说项目文件的写作 Agent。'
 
   return [
-    userPrompt || '你是 NovAI，一个通过工具读写本地小说项目文件的写作 Agent。',
+    head,
     '',
     '你是交互式小说创作 Agent。你的工作不是把所有正文都堆到聊天里，而是理解用户意图，然后使用工具读取、修改或创建项目文件。',
     '',
@@ -21,7 +37,8 @@ export function buildAgentSystemPrompt(customPrompt?: string) {
     '- 删除文件时，必须确认用户意图明确，再使用 DeleteFile；它会把文件移入回收站，不会永久删除。',
     '- 不确定某个目录的直接结构时，先使用 ListDirectory 查看目录，不要为了探索目录而批量读取文件。',
     '- 需要按文件名、路径模式查找文件时，使用 FindFiles；找到候选文件后再用 ReadFile 精读。',
-    '- 需要保持人物、地点、剧情、时间线或世界观一致时，优先使用 RagSearch 召回相关要素；检索结果不足或需要完整原文时，再按 sourcePath 使用 ReadFile 精读。',
+    '- 要素分组规则：人物写入 elements/characters，地点写入 elements/locations，武功、武器、坐骑、丹药、信物、法器等具体实体写入 elements/entities，剧情事件写入 elements/plots，阶段时间线写入 elements/timeline，抽象规则和体系写入 elements/worldbuilding。',
+    '- 需要保持人物、地点、实体、剧情、时间线或世界观一致时，优先使用 RagSearch 召回相关要素；检索结果不足或需要完整原文时，再按 sourcePath 使用 ReadFile 精读。',
     '- 聊天回复用于说明你做了什么、为什么这么做、下一步建议是什么；不要把完整长篇正文当作唯一结果留在聊天里。',
     '- 如果缺少目标路径或上下文，先说明你需要什么，或先读取项目中最相关的文件。',
     '- 保持中文输出，除非用户明确要求其他语言。',
@@ -35,7 +52,7 @@ export function buildAgentSystemPrompt(customPrompt?: string) {
     '- DeleteFile 用于把单个 .md、.json、.txt 文件移入 .novel/trash 回收站。不要删除用户没有明确要求删除的文件。',
     '- ListDirectory 用于查看某个已存在目录的直接子项；不传 path 时查看项目根目录。它不会读取文件正文。目录不存在时，如果目标是新建文件，可以直接用 CreateFile。',
     '- FindFiles 用于按 glob 模式递归查找文件路径，例如 **/*.md、chapters/*.txt、**/*来信*.md。它不会读取文件正文。',
-    '- RagSearch 用于从项目要素索引中语义检索相关设定。写新章节、续写、改稿、回答设定相关问题时，先用自然语言 query 检索；返回的 sourcePath 可用于后续 ReadFile 精读。',
+    '- RagSearch 用于从项目要素索引中语义检索相关设定，包括人物、地点、实体、剧情、时间线和世界观。写新章节、续写、改稿、回答设定相关问题时，先用自然语言 query 检索；返回的 sourcePath 可用于后续 ReadFile 精读。',
     '- 可以连续使用多个工具完成任务。完成工具调用后，继续根据工具结果判断是否还需要下一步。',
     '- 完成任务后，用简短自然语言总结变更，不要重复输出整个文件。',
   ].join('\n')
diff --git a/packages/core/src/core/agent/tools.ts b/packages/core/src/core/agent/tools.ts
index 54aeee9..bc5e303 100644
--- a/packages/core/src/core/agent/tools.ts
+++ b/packages/core/src/core/agent/tools.ts
@@ -333,7 +333,7 @@ export function createAgentTools(): AgentRunnableToolMap {
                     type: 'array',
                     items: {
                       type: 'string',
-                      enum: ['character', 'location', 'timeline', 'plot', 'worldbuilding'],
+                      enum: ['character', 'location', 'entity', 'timeline', 'plot', 'worldbuilding'],
                     },
                     description: '可选，只检索指定类型的要素。',
                   },
diff --git a/packages/core/src/core/chat/session.ts b/packages/core/src/core/chat/session.ts
index 8a3f498..02769dc 100644
--- a/packages/core/src/core/chat/session.ts
+++ b/packages/core/src/core/chat/session.ts
@@ -98,6 +98,7 @@ export async function runChatTurn(options: RunChatTurnOptions): Promise<ChatTurn
     previousMessages: session.agentMessages,
     instruction: input.instruction,
     systemPrompt: input.systemPrompt,
+    scenePrompt: input.scenePrompt,
     project: input.project,
     target,
   })
@@ -427,6 +428,7 @@ function buildAgentMessages(input: {
   previousMessages?: AgentMessage[]
   instruction: string
   systemPrompt: string
+  scenePrompt?: string
   project: ChatTurnInput['project']
   target: ChatTargetContext | null
 }): AgentMessage[] {
@@ -446,7 +448,10 @@ function buildAgentMessages(input: {
   return [
     {
       role: 'system',
-      content: buildAgentSystemPrompt(input.systemPrompt),
+      content: buildAgentSystemPrompt({
+        systemPrompt: input.systemPrompt,
+        scenePrompt: input.scenePrompt,
+      }),
     },
     nextUserMessage,
   ]
@@ -665,7 +670,7 @@ function flattenChapterPaths(tree: ChatTurnInput['project']['tree']) {
       continue
     }
 
-    if (node.kind === 'file' && node.path.startsWith('chapters/') && node.name.endsWith('.txt')) {
+    if (node.kind === 'file' && node.path.startsWith('chapters/') && /\.(txt|md)$/i.test(node.name)) {
       paths.push(node.path)
       continue
     }
diff --git a/packages/core/src/core/elements/elements.test.ts b/packages/core/src/core/elements/elements.test.ts
index c83df9b..b1aad87 100644
--- a/packages/core/src/core/elements/elements.test.ts
+++ b/packages/core/src/core/elements/elements.test.ts
@@ -1,27 +1,8 @@
 import { describe, expect, it } from 'vitest'
 
-import { extractElementsFromChapter } from './extractor'
 import { createElementDocument, writeElementDocuments } from './writer'
 
 describe('elements', () => {
-  it('extracts usable element candidates from chapter content', async () => {
-    const result = await extractElementsFromChapter({
-      chapterPath: 'chapters/第001章.txt',
-      chapterContent: [
-        '第一章 藏书楼',
-        '',
-        '主角林远在深夜走进废弃藏书楼，发现一封来自十年前的信。',
-        '林远低声问自己，那封旧王朝密信为什么会藏在这里。',
-      ].join('\n'),
-    })
-
-    expect(result.characters.some((item) => item.name === '林远')).toBe(true)
-    expect(result.locations.some((item) => item.name.includes('藏书楼'))).toBe(true)
-    expect(result.plots).toHaveLength(1)
-    expect(result.timeline).toHaveLength(1)
-    expect(result.worldbuilding.some((item) => item.name.includes('密信'))).toBe(true)
-  })
-
   it('writes element documents and skips unchanged writes', async () => {
     const handle = createMemoryDirectory('novel')
     const element = createElementDocument({
@@ -52,6 +33,24 @@ describe('elements', () => {
     expect(second.skipped).toEqual(['elements/characters/林远.md'])
     expect(second.staleIndex).toBe(false)
   })
+
+  it('writes entity documents into elements/entities', async () => {
+    const handle = createMemoryDirectory('novel')
+    const element = createElementDocument({
+      type: 'entity',
+      name: '青霜剑',
+      summary: '林远当前持有的佩剑。',
+      tags: ['实体', '武器'],
+      lastUpdatedChapter: 'chapters/第001章.txt',
+      relatedChapters: ['chapters/第001章.txt'],
+      body: '## 实体线索\n\n- 林远取出青霜剑。',
+    })
+
+    const result = await writeElementDocuments(handle, [element])
+
+    expect(result.created).toEqual(['elements/entities/青霜剑.md'])
+    await expect(readProjectText(handle, 'elements/entities/青霜剑.md')).resolves.toContain('type: entity')
+  })
 })
 
 type MemoryFileEntry = {
diff --git a/packages/core/src/core/elements/extractor-llm.test.ts b/packages/core/src/core/elements/extractor-llm.test.ts
new file mode 100644
index 0000000..845e52a
--- /dev/null
+++ b/packages/core/src/core/elements/extractor-llm.test.ts
@@ -0,0 +1,94 @@
+import { describe, expect, it } from 'vitest'
+
+import { parseExtractionResponse } from './extractor-llm'
+
+describe('extractor-llm parseExtractionResponse', () => {
+  it('parses a clean JSON object into six buckets', () => {
+    const raw = JSON.stringify({
+      characters: [{ name: '林远', summary: '本章主角', body: '发现旧信' }],
+      locations: [{ name: '藏书楼', summary: '废弃场所', body: '深夜进入' }],
+      entities: [],
+      timeline: [{ name: '深夜', summary: '事件发生时间', body: '发现信件' }],
+      plots: [{ name: '发现密信', summary: '核心事件', body: '林远找到十年前的信' }],
+      worldbuilding: [{ name: '旧王朝', summary: '历史背景', body: '密信涉及旧王朝' }],
+    })
+
+    const result = parseExtractionResponse(raw, 'chapters/第001章.txt')
+
+    expect(result.characters).toHaveLength(1)
+    expect(result.characters[0].name).toBe('林远')
+    expect(result.characters[0].tags).toContain('AI 提取')
+    expect(result.characters[0].lastUpdatedChapter).toBe('chapters/第001章.txt')
+    expect(result.locations).toHaveLength(1)
+    expect(result.entities).toHaveLength(0)
+    expect(result.plots).toHaveLength(1)
+    expect(result.worldbuilding).toHaveLength(1)
+  })
+
+  it('extracts JSON from a fenced ```json code block', () => {
+    const raw = [
+      '好的，以下是提取结果：',
+      '```json',
+      '{"characters":[{"name":"云溪","summary":"女修","body":"出手相助"}],"locations":[],"entities":[],"timeline":[],"plots":[],"worldbuilding":[]}',
+      '```',
+    ].join('\n')
+
+    const result = parseExtractionResponse(raw, 'chapters/第002章.txt')
+
+    expect(result.characters).toHaveLength(1)
+    expect(result.characters[0].name).toBe('云溪')
+  })
+
+  it('extracts JSON when surrounded by extra prose without fences', () => {
+    const raw = '分析完成。结果如下：\n{"characters":[{"name":"林远","summary":"","body":""}],"locations":[],"entities":[],"timeline":[],"plots":[],"worldbuilding":[]}\n以上是全部要素。'
+
+    const result = parseExtractionResponse(raw, 'chapters/第001章.txt')
+
+    expect(result.characters).toHaveLength(1)
+    // summary 为空时应回填默认文案
+    expect(result.characters[0].summary).toContain('林远')
+  })
+
+  it('skips items missing name and returns empty buckets for non-array fields', () => {
+    const raw = JSON.stringify({
+      characters: [{ summary: '没有名字' }, { name: '林远', summary: '有效' }],
+      locations: '不是一个数组',
+      entities: null,
+      timeline: [],
+      plots: [],
+      worldbuilding: [],
+    })
+
+    const result = parseExtractionResponse(raw, 'chapters/第001章.txt')
+
+    expect(result.characters).toHaveLength(1)
+    expect(result.characters[0].name).toBe('林远')
+    expect(result.locations).toHaveLength(0)
+  })
+
+  it('returns all-empty buckets when the response is not valid JSON', () => {
+    const result = parseExtractionResponse('这不是 JSON，模型跑偏了', 'chapters/第001章.txt')
+
+    expect(result.characters).toHaveLength(0)
+    expect(result.locations).toHaveLength(0)
+    expect(result.entities).toHaveLength(0)
+    expect(result.timeline).toHaveLength(0)
+    expect(result.plots).toHaveLength(0)
+    expect(result.worldbuilding).toHaveLength(0)
+  })
+
+  it('backfills empty body with a default placeholder', () => {
+    const raw = JSON.stringify({
+      characters: [{ name: '林远', summary: '主角', body: '' }],
+      locations: [],
+      entities: [],
+      timeline: [],
+      plots: [],
+      worldbuilding: [],
+    })
+
+    const result = parseExtractionResponse(raw, 'chapters/第001章.txt')
+
+    expect(result.characters[0].body).toContain('林远')
+  })
+})
diff --git a/packages/core/src/core/elements/extractor-llm.ts b/packages/core/src/core/elements/extractor-llm.ts
new file mode 100644
index 0000000..82a1c38
--- /dev/null
+++ b/packages/core/src/core/elements/extractor-llm.ts
@@ -0,0 +1,210 @@
+import { streamChatCompletion } from '../llm/client'
+
+import type { ElementExtractionItem, ElementExtractionResult } from '../../types/elements'
+import type { ElementType } from '../../types/rag'
+import type { ProjectConfig } from '../../types/project'
+
+type ExtractionBucket = keyof ElementExtractionResult
+
+const BUCKET_TYPE_MAP: Record<ExtractionBucket, ElementType> = {
+  characters: 'character',
+  locations: 'location',
+  entities: 'entity',
+  timeline: 'timeline',
+  plots: 'plot',
+  worldbuilding: 'worldbuilding',
+}
+
+/**
+ * 调用项目配置的 LLM，对单章正文做结构化要素提取。
+ * 提取失败（未配置 LLM、网络异常、解析失败）时抛错，由上层决定是否降级到正则提取。
+ */
+export async function extractElementsWithLlm(input: {
+  chapterContent: string
+  chapterPath?: string
+  config: ProjectConfig
+}): Promise<ElementExtractionResult> {
+  const { llm } = input.config
+
+  if (!llm.baseUrl.trim() || !llm.apiKey.trim() || !llm.model.trim()) {
+    throw new Error('未配置 LLM，无法执行 AI 要素提取')
+  }
+
+  const chapterRef = input.chapterPath?.trim() || '当前章节'
+  const systemPrompt = buildExtractionSystemPrompt()
+  const userPrompt = buildExtractionUserPrompt(input.chapterContent, chapterRef)
+
+  const rawText = await streamChatCompletion(
+    {
+      baseUrl: llm.baseUrl,
+      apiKey: llm.apiKey,
+      model: llm.model,
+      systemPrompt,
+      instruction: userPrompt,
+    },
+    () => {
+      // 要素提取是一次性结构化输出，不需要消费流式增量；留空回调即可。
+    },
+  )
+
+  return parseExtractionResponse(rawText, chapterRef)
+}
+
+function buildExtractionSystemPrompt(): string {
+  return [
+    '你是小说创作要素抽取助手。你的任务是从单章正文中识别并结构化抽取六类要素。',
+    '',
+    '【六类要素定义】',
+    '- characters：登场人物，记录姓名、当前状态、关键行为。',
+    '- locations：出现的地点、场景、场所。',
+    '- entities：具体实体，包括武功、武器、坐骑、丹药、信物、法器等。',
+    '- timeline：本章关键事件的时间顺序节点。',
+    '- plots：本章核心情节事件。',
+    '- worldbuilding：涉及的设定、规则、体系、组织、境界等抽象世界观线索。',
+    '',
+    '【输出要求】',
+    '- 只输出一个 JSON 对象，不要输出任何解释、前言、注释或代码块标记。',
+    '- JSON 顶层包含六个数组字段：characters、locations、entities、timeline、plots、worldbuilding。',
+    '- 每个元素是一个对象，字段：name（字符串，必填）、summary（简短描述）、body（较详细说明，可包含原文线索）。',
+    '- 没有对应要素的类别返回空数组。',
+    '- 不要编造正文中没有的要素；只抽取本章实际出现的内容。',
+    '- 全部使用中文。',
+    '',
+    '【输出 JSON 结构示例】',
+    '{"characters":[{"name":"示例人物","summary":"本章做了什么","body":"详细线索"}],"locations":[],"entities":[],"timeline":[],"plots":[],"worldbuilding":[]}',
+  ].join('\n')
+}
+
+function buildExtractionUserPrompt(chapterContent: string, chapterRef: string): string {
+  const content = chapterContent.replace(/\r\n/g, '\n').trim()
+  return [
+    `章节标识：${chapterRef}`,
+    '',
+    '以下是章节正文，请抽取其中的要素并以 JSON 输出：',
+    '',
+    content,
+  ].join('\n')
+}
+
+/**
+ * 把模型返回的文本解析成 ElementExtractionResult。
+ * 容错策略：提取 JSON 代码块、逐字段校验、非法项跳过。
+ */
+export function parseExtractionResponse(
+  rawText: string,
+  chapterRef: string,
+): ElementExtractionResult {
+  const parsed = safeParseJson(rawText)
+
+  const result: ElementExtractionResult = {
+    characters: [],
+    locations: [],
+    entities: [],
+    timeline: [],
+    plots: [],
+    worldbuilding: [],
+  }
+
+  if (!parsed || typeof parsed !== 'object') {
+    return result
+  }
+
+  for (const bucket of Object.keys(result) as ExtractionBucket[]) {
+    const rawItems = (parsed as Record<string, unknown>)[bucket]
+    const type = BUCKET_TYPE_MAP[bucket]
+
+    if (!Array.isArray(rawItems)) {
+      continue
+    }
+
+    for (const raw of rawItems) {
+      const item = toExtractionItem(raw, type, chapterRef)
+      if (item) {
+        result[bucket].push(item)
+      }
+    }
+  }
+
+  return result
+}
+
+function safeParseJson(text: string): unknown {
+  const trimmed = text.trim()
+
+  // 优先尝试直接解析
+  const direct = tryJson(trimmed)
+  if (direct !== undefined) {
+    return direct
+  }
+
+  // 回退：提取 ```json ... ``` 代码块
+  const fenced = trimmed.match(/```(?:json)?\s*([\s\S]*?)```/i)
+  if (fenced?.[1]) {
+    const inner = tryJson(fenced[1].trim())
+    if (inner !== undefined) {
+      return inner
+    }
+  }
+
+  // 再回退：截取第一个 { 到最后一个 } 之间的内容
+  const start = trimmed.indexOf('{')
+  const end = trimmed.lastIndexOf('}')
+  if (start !== -1 && end > start) {
+    const slice = trimmed.slice(start, end + 1)
+    const sliced = tryJson(slice)
+    if (sliced !== undefined) {
+      return sliced
+    }
+  }
+
+  return null
+}
+
+function tryJson(text: string): unknown {
+  try {
+    return JSON.parse(text)
+  } catch {
+    return undefined
+  }
+}
+
+function toExtractionItem(
+  raw: unknown,
+  type: ElementType,
+  chapterRef: string,
+): ElementExtractionItem | null {
+  if (!raw || typeof raw !== 'object') {
+    return null
+  }
+
+  const record = raw as Record<string, unknown>
+  const name = typeof record.name === 'string' ? record.name.trim() : ''
+
+  if (!name) {
+    return null
+  }
+
+  const summary = typeof record.summary === 'string' ? record.summary.trim() : ''
+  const body = typeof record.body === 'string' ? record.body.trim() : ''
+
+  return {
+    type,
+    name,
+    summary: summary || `${name} 在「${chapterRef}」中出现。`,
+    tags: ['AI 提取', typeToTag(type)],
+    lastUpdatedChapter: chapterRef,
+    relatedChapters: [chapterRef],
+    body: body || `${name} 需要后续整理。`,
+  }
+}
+
+function typeToTag(type: ElementType): string {
+  switch (type) {
+    case 'character': return '人物'
+    case 'location': return '地点'
+    case 'entity': return '实体'
+    case 'timeline': return '时间线'
+    case 'plot': return '情节'
+    case 'worldbuilding': return '设定'
+  }
+}
diff --git a/packages/core/src/core/elements/extractor.ts b/packages/core/src/core/elements/extractor.ts
deleted file mode 100644
index 2bad880..0000000
--- a/packages/core/src/core/elements/extractor.ts
+++ /dev/null
@@ -1,277 +0,0 @@
-import type { ElementExtractionResult } from '../../types/elements'
-import type { ElementType } from '../../types/rag'
-
-type ExtractionBucket = keyof ElementExtractionResult
-
-const TYPE_BUCKET_MAP: Record<ElementType, ExtractionBucket> = {
-  character: 'characters',
-  location: 'locations',
-  timeline: 'timeline',
-  plot: 'plots',
-  worldbuilding: 'worldbuilding',
-}
-
-const LOCATION_SUFFIXES = '楼阁院城镇村谷山峰林河湖海洞宫殿寺庙塔桥巷街路关岛洲府国界域'
-
-export async function extractElementsFromChapter(input: {
-  chapterContent: string
-  chapterPath?: string
-  systemPrompt?: string
-}): Promise<ElementExtractionResult> {
-  const content = normalizeChapterContent(input.chapterContent)
-  const title = extractTitle(content, input.chapterPath)
-  const chapterRef = input.chapterPath || title
-  const result: ElementExtractionResult = {
-    characters: [],
-    locations: [],
-    timeline: [],
-    plots: [],
-    worldbuilding: [],
-  }
-
-  for (const name of extractCharacterNames(content)) {
-    pushItem(result, 'character', {
-      name,
-      summary: `${name} 在「${title}」中出现，需要记录其当前状态与关系变化。`,
-      tags: ['自动提取', '人物'],
-      lastUpdatedChapter: chapterRef,
-      relatedChapters: [chapterRef],
-      body: buildBody(content, name, '人物线索'),
-    })
-  }
-
-  for (const name of extractLocationNames(content)) {
-    pushItem(result, 'location', {
-      name,
-      summary: `${name} 是「${title}」中出现的地点或场景。`,
-      tags: ['自动提取', '地点'],
-      lastUpdatedChapter: chapterRef,
-      relatedChapters: [chapterRef],
-      body: buildBody(content, name, '地点线索'),
-    })
-  }
-
-  const plotSummary = summarizeChapter(content)
-  if (plotSummary) {
-    pushItem(result, 'plot', {
-      name: title,
-      summary: plotSummary,
-      tags: ['自动提取', '情节'],
-      lastUpdatedChapter: chapterRef,
-      relatedChapters: [chapterRef],
-      body: `## 情节摘要\n\n${plotSummary}\n\n## 原文线索\n\n${excerpt(content)}`,
-    })
-  }
-
-  pushItem(result, 'timeline', {
-    name: `${title} 时间线`,
-    summary: `记录「${title}」中的事件顺序与状态变化。`,
-    tags: ['自动提取', '时间线'],
-    lastUpdatedChapter: chapterRef,
-    relatedChapters: [chapterRef],
-    body: buildTimelineBody(content),
-  })
-
-  for (const name of extractWorldbuildingNames(content)) {
-    pushItem(result, 'worldbuilding', {
-      name,
-      summary: `${name} 是「${title}」中出现的设定、物件或组织线索。`,
-      tags: ['自动提取', '设定'],
-      lastUpdatedChapter: chapterRef,
-      relatedChapters: [chapterRef],
-      body: buildBody(content, name, '设定线索'),
-    })
-  }
-
-  return result
-}
-
-function pushItem(
-  result: ElementExtractionResult,
-  type: ElementType,
-  item: Omit<ElementExtractionResult[ExtractionBucket][number], 'type'>,
-) {
-  const bucket = result[TYPE_BUCKET_MAP[type]]
-
-  if (bucket.some((existing) => existing.name === item.name)) {
-    return
-  }
-
-  bucket.push({
-    type,
-    ...item,
-  })
-}
-
-function normalizeChapterContent(content: string) {
-  return content.replace(/\r\n/g, '\n').trim()
-}
-
-function extractTitle(content: string, chapterPath?: string) {
-  const heading = content.match(/^#\s+(.+)$/m)?.[1]?.trim()
-
-  if (heading) {
-    return heading
-  }
-
-  const fileName = chapterPath?.split('/').pop()?.replace(/\.(md|txt)$/i, '').trim()
-  return fileName || '未命名章节'
-}
-
-function extractCharacterNames(markdown: string) {
-  const names = new Set<string>()
-  const patterns = [
-    /(?:主角|人物|少年|少女|男人|女人|老人|修士|侍卫|掌柜|先生|姑娘|公子)([一-龥]{2,4})(?:在|于|向|对|和|与|说|道|问|答|，|。)/g,
-    /(?:主角|人物|少年|少女|男人|女人|老人|修士|侍卫|掌柜|先生|姑娘|公子)([一-龥]{2,4})/g,
-    /(?:^|[。！？!?；;\n])([一-龥]{2,4})(?:说|道|问|答|低声|喃喃|皱眉|抬头|回头|沉默|笑了|走进|发现|看见)/g,
-    /「([^」]{2,4})」(?:说|道|问|答)/g,
-  ]
-
-  for (const pattern of patterns) {
-    for (const match of markdown.matchAll(pattern)) {
-      const name = sanitizeName(match[1])
-
-      if (isLikelyName(name)) {
-        names.add(name)
-      }
-    }
-  }
-
-  return Array.from(names).slice(0, 8)
-}
-
-function extractLocationNames(markdown: string) {
-  const names = new Set<string>()
-  const patterns = [
-    new RegExp(`([一-龥]{2,8}[${LOCATION_SUFFIXES}])`, 'g'),
-    /(?:走进|进入|来到|抵达|离开|穿过|回到|前往)([一-龥]{2,10})/g,
-  ]
-
-  for (const pattern of patterns) {
-    for (const match of markdown.matchAll(pattern)) {
-      const name = sanitizeName(match[1])
-
-      if (name.length >= 2 && name.length <= 10 && !isCommonPhrase(name)) {
-        names.add(name)
-      }
-    }
-  }
-
-  return Array.from(names).slice(0, 8)
-}
-
-function extractWorldbuildingNames(markdown: string) {
-  const names = new Set<string>()
-  const pattern = /([一-龥]{2,10}(?:信|书|卷轴|玉佩|令牌|契约|阵法|禁制|传说|预言|组织|宗门|王朝|仪式|秘术|法器))/g
-
-  for (const match of markdown.matchAll(pattern)) {
-    const name = sanitizeName(match[1])
-
-    if (name.length >= 2 && !isCommonPhrase(name)) {
-      names.add(name)
-    }
-  }
-
-  return Array.from(names).slice(0, 8)
-}
-
-function summarizeChapter(markdown: string) {
-  const paragraph = markdown
-    .split(/\n{2,}/)
-    .map((item) => item.replace(/^#+\s*/, '').trim())
-    .find((item) => item.length >= 20)
-
-  return paragraph ? trimText(paragraph, 140) : ''
-}
-
-function buildBody(markdown: string, name: string, heading: string) {
-  return [
-    `## ${heading}`,
-    '',
-    collectEvidence(markdown, name),
-    '',
-    '## 待补充',
-    '',
-    '- 当前状态：待人工或 Agent 继续整理。',
-    '- 与其他要素的关系：待补充。',
-  ].join('\n')
-}
-
-function buildTimelineBody(markdown: string) {
-  const sentences = splitSentences(markdown)
-    .filter((sentence) => sentence.length >= 8)
-    .slice(0, 6)
-
-  if (sentences.length === 0) {
-    return '## 事件顺序\n\n- 待补充。'
-  }
-
-  return [
-    '## 事件顺序',
-    '',
-    ...sentences.map((sentence) => `- ${trimText(sentence, 90)}`),
-  ].join('\n')
-}
-
-function collectEvidence(markdown: string, keyword: string) {
-  const sentences = splitSentences(markdown)
-    .filter((sentence) => sentence.includes(keyword))
-    .slice(0, 4)
-
-  if (sentences.length === 0) {
-    return `- 自动提取到「${keyword}」，但暂未截取到明确上下文。`
-  }
-
-  return sentences.map((sentence) => `- ${trimText(sentence, 100)}`).join('\n')
-}
-
-function splitSentences(markdown: string) {
-  return markdown
-    .replace(/^#+\s+.+$/gm, '')
-    .split(/[。！？!?；;\n]+/)
-    .map((sentence) => sentence.trim())
-    .filter(Boolean)
-}
-
-function excerpt(markdown: string) {
-  return trimText(markdown.replace(/^#+\s+.+$/gm, '').trim(), 500)
-}
-
-function sanitizeName(value: string) {
-  return value
-    .replace(/[，。！？、,.!?：:“”"'《》（）()【】\[\]\s]/g, '')
-    .trim()
-}
-
-function isLikelyName(value: string) {
-  return value.length >= 2 && value.length <= 4 && !isCommonPhrase(value)
-}
-
-function isCommonPhrase(value: string) {
-  const common = new Set([
-    '他们',
-    '我们',
-    '你们',
-    '这里',
-    '那里',
-    '这个',
-    '那个',
-    '什么',
-    '时候',
-    '已经',
-    '没有',
-    '发现',
-    '看见',
-    '听见',
-    '深夜',
-    '废弃',
-    '来自',
-    '年前',
-  ])
-
-  return common.has(value)
-}
-
-function trimText(value: string, maxLength: number) {
-  return value.length > maxLength ? `${value.slice(0, maxLength)}...` : value
-}
diff --git a/packages/core/src/core/elements/parser.ts b/packages/core/src/core/elements/parser.ts
index 8b83ae4..780faf3 100644
--- a/packages/core/src/core/elements/parser.ts
+++ b/packages/core/src/core/elements/parser.ts
@@ -78,7 +78,13 @@ function normalizeFrontmatter(raw: string): ElementFrontmatter {
 }
 
 function normalizeType(value: string | undefined): ElementFrontmatter['type'] {
-  if (value === 'location' || value === 'timeline' || value === 'plot' || value === 'worldbuilding') {
+  if (
+    value === 'location' ||
+    value === 'entity' ||
+    value === 'timeline' ||
+    value === 'plot' ||
+    value === 'worldbuilding'
+  ) {
     return value
   }
 
diff --git a/packages/core/src/core/elements/writer.ts b/packages/core/src/core/elements/writer.ts
index ff2d8eb..36e2227 100644
--- a/packages/core/src/core/elements/writer.ts
+++ b/packages/core/src/core/elements/writer.ts
@@ -6,6 +6,7 @@ import { readProjectTextFile, writeProjectTextFile } from '../fs/project-fs'
 const ELEMENT_DIRECTORY_MAP: Record<ElementType, string> = {
   character: 'elements/characters',
   location: 'elements/locations',
+  entity: 'elements/entities',
   timeline: 'elements/timeline',
   plot: 'elements/plots',
   worldbuilding: 'elements/worldbuilding',
diff --git a/packages/core/src/core/fs/project-fs.test.ts b/packages/core/src/core/fs/project-fs.test.ts
new file mode 100644
index 0000000..f24fd4d
--- /dev/null
+++ b/packages/core/src/core/fs/project-fs.test.ts
@@ -0,0 +1,222 @@
+import { describe, expect, it } from 'vitest'
+
+import { repairProject } from './project-fs'
+
+describe('project fs repair', () => {
+  it('does not recreate the default scene prompt after it has been deleted or renamed', async () => {
+    const rootHandle = createMemoryDirectory('novel')
+
+    writeProjectTextSync(rootHandle, 'novel.config.json', JSON.stringify({
+      project: {
+        name: 'Test Novel',
+        createdAt: '2026-01-01T00:00:00.000Z',
+        updatedAt: '2026-01-01T00:00:00.000Z',
+      },
+    }))
+    writeProjectTextSync(rootHandle, '.novel/manifest.json', JSON.stringify({
+      projectId: 'test-project',
+      version: 1,
+      createdAt: '2026-01-01T00:00:00.000Z',
+      lastOpenedAt: '2026-01-01T00:00:00.000Z',
+    }))
+    writeProjectTextSync(rootHandle, 'prompts/system.md', '# System Prompt')
+    writeProjectTextSync(rootHandle, 'prompts/scenes/renamed-scene.md', '# Renamed Scene Prompt')
+
+    const project = await repairProject(rootHandle)
+
+    expect(project.tree).toContainEqual(expect.objectContaining({
+      kind: 'directory',
+      path: 'prompts',
+    }))
+    await expect(readProjectText(rootHandle, 'prompts/scenes/scene-001.md')).rejects.toThrow('Not found')
+    await expect(readProjectText(rootHandle, 'prompts/scenes/renamed-scene.md')).resolves.toBe('# Renamed Scene Prompt')
+  })
+})
+
+type MemoryFileEntry = {
+  kind: 'file'
+  name: string
+  content: string
+  lastModified: number
+}
+
+type MemoryDirectoryEntry = {
+  kind: 'directory'
+  name: string
+  entries: Map<string, MemoryEntry>
+}
+
+type MemoryEntry = MemoryFileEntry | MemoryDirectoryEntry
+
+type MemoryDirectoryHandle = FileSystemDirectoryHandle & {
+  __entry: MemoryDirectoryEntry
+}
+
+function createMemoryDirectory(name: string): MemoryDirectoryHandle {
+  return createDirectoryHandle({
+    kind: 'directory',
+    name,
+    entries: new Map(),
+  })
+}
+
+function createDirectoryHandle(entry: MemoryDirectoryEntry): MemoryDirectoryHandle {
+  return {
+    kind: 'directory',
+    name: entry.name,
+    __entry: entry,
+    async getDirectoryHandle(name: string, options?: FileSystemGetDirectoryOptions) {
+      const current = entry.entries.get(name)
+
+      if (current?.kind === 'directory') {
+        return createDirectoryHandle(current)
+      }
+
+      if (current) {
+        throw new DOMException(`Not a directory: ${name}`, 'TypeMismatchError')
+      }
+
+      if (!options?.create) {
+        throw new DOMException(`Not found: ${name}`, 'NotFoundError')
+      }
+
+      const next: MemoryDirectoryEntry = {
+        kind: 'directory',
+        name,
+        entries: new Map(),
+      }
+      entry.entries.set(name, next)
+      return createDirectoryHandle(next)
+    },
+    async getFileHandle(name: string, options?: FileSystemGetFileOptions) {
+      const current = entry.entries.get(name)
+
+      if (current?.kind === 'file') {
+        return createFileHandle(current)
+      }
+
+      if (current) {
+        throw new DOMException(`Not a file: ${name}`, 'TypeMismatchError')
+      }
+
+      if (!options?.create) {
+        throw new DOMException(`Not found: ${name}`, 'NotFoundError')
+      }
+
+      const next: MemoryFileEntry = {
+        kind: 'file',
+        name,
+        content: '',
+        lastModified: Date.now(),
+      }
+      entry.entries.set(name, next)
+      return createFileHandle(next)
+    },
+    async removeEntry(name: string) {
+      if (!entry.entries.delete(name)) {
+        throw new DOMException(`Not found: ${name}`, 'NotFoundError')
+      }
+    },
+    async *values() {
+      for (const child of entry.entries.values()) {
+        yield child.kind === 'directory'
+          ? createDirectoryHandle(child)
+          : createFileHandle(child)
+      }
+    },
+  } as unknown as MemoryDirectoryHandle
+}
+
+function createFileHandle(entry: MemoryFileEntry): FileSystemFileHandle {
+  return {
+    kind: 'file',
+    name: entry.name,
+    async getFile() {
+      return new File([entry.content], entry.name, {
+        type: 'text/plain',
+        lastModified: entry.lastModified,
+      })
+    },
+    async createWritable() {
+      let nextContent = ''
+
+      return {
+        async write(data: FileSystemWriteChunkType) {
+          nextContent = typeof data === 'string'
+            ? data
+            : data instanceof Blob
+              ? await data.text()
+              : String(data)
+        },
+        async close() {
+          entry.content = nextContent
+          entry.lastModified = Date.now()
+        },
+      } as FileSystemWritableFileStream
+    },
+  } as unknown as FileSystemFileHandle
+}
+
+function writeProjectTextSync(rootHandle: MemoryDirectoryHandle, path: string, content: string) {
+  const segments = path.split('/').filter(Boolean)
+  const fileName = segments.pop()
+
+  if (!fileName) {
+    throw new Error(`Invalid file path: ${path}`)
+  }
+
+  let current = rootHandle.__entry
+
+  for (const segment of segments) {
+    const existing = current.entries.get(segment)
+
+    if (existing?.kind === 'file') {
+      throw new Error(`Not a directory: ${segment}`)
+    }
+
+    if (existing?.kind === 'directory') {
+      current = existing
+      continue
+    }
+
+    const next: MemoryDirectoryEntry = {
+      kind: 'directory',
+      name: segment,
+      entries: new Map(),
+    }
+    current.entries.set(segment, next)
+    current = next
+  }
+
+  current.entries.set(fileName, {
+    kind: 'file',
+    name: fileName,
+    content,
+    lastModified: Date.now(),
+  })
+}
+
+async function readProjectText(rootHandle: FileSystemDirectoryHandle, path: string) {
+  const fileHandle = await resolveMemoryFileHandle(rootHandle, path)
+  return (await fileHandle.getFile()).text()
+}
+
+async function resolveMemoryFileHandle(
+  rootHandle: FileSystemDirectoryHandle,
+  path: string,
+) {
+  const segments = path.split('/').filter(Boolean)
+  const fileName = segments.pop()
+
+  if (!fileName) {
+    throw new Error(`Invalid file path: ${path}`)
+  }
+
+  let current = rootHandle
+
+  for (const segment of segments) {
+    current = await current.getDirectoryHandle(segment)
+  }
+
+  return current.getFileHandle(fileName)
+}
diff --git a/packages/core/src/core/fs/project-fs.ts b/packages/core/src/core/fs/project-fs.ts
index 4c5c006..ff1459f 100644
--- a/packages/core/src/core/fs/project-fs.ts
+++ b/packages/core/src/core/fs/project-fs.ts
@@ -17,6 +17,7 @@ const REQUIRED_DIRECTORY_PATHS = [
   'elements',
   'elements/characters',
   'elements/locations',
+  'elements/entities',
   'elements/timeline',
   'elements/plots',
   'elements/worldbuilding',
@@ -43,15 +44,9 @@ export async function createProject(projectName: string): Promise<ProjectSnapsho
   const rootHandle = await parentHandle.getDirectoryHandle(projectName, { create: true })
   const projectId = createProjectId()
 
-  await ensureDirectory(rootHandle, 'chapters')
-  await ensureDirectory(rootHandle, 'elements/characters')
-  await ensureDirectory(rootHandle, 'elements/locations')
-  await ensureDirectory(rootHandle, 'elements/timeline')
-  await ensureDirectory(rootHandle, 'elements/plots')
-  await ensureDirectory(rootHandle, 'elements/worldbuilding')
-  await ensureDirectory(rootHandle, 'prompts/scenes')
-  await ensureDirectory(rootHandle, '.novel')
-  await ensureDirectory(rootHandle, '.novel/logs')
+  for (const directoryPath of REQUIRED_DIRECTORY_PATHS) {
+    await ensureDirectory(rootHandle, directoryPath)
+  }
 
   await writeJson(rootHandle, 'novel.config.json', createDefaultConfig(projectName))
   await writeJson(rootHandle, '.novel/manifest.json', createDefaultManifest(projectId))
@@ -113,7 +108,7 @@ export async function inspectProject(rootHandle: FileSystemDirectoryHandle): Pro
     issues.push('missing-chapters')
   }
 
-  if (!(await pathExists(rootHandle, 'elements', 'directory'))) {
+  if (!(await hasRequiredElementDirectories(rootHandle))) {
     issues.push('missing-elements')
   }
 
@@ -169,10 +164,6 @@ export async function repairProject(
     await writeText(rootHandle, 'prompts/system.md', DEFAULT_SYSTEM_PROMPT)
   }
 
-  if (!(await pathExists(rootHandle, 'prompts/scenes/scene-001.md', 'file'))) {
-    await writeText(rootHandle, 'prompts/scenes/scene-001.md', DEFAULT_SCENE_PROMPT)
-  }
-
   return loadProjectFromHandle(rootHandle)
 }
 
@@ -278,6 +269,18 @@ function normalizeProjectConfig(config: ProjectConfig): ProjectConfig {
   }
 }
 
+async function hasRequiredElementDirectories(rootHandle: FileSystemDirectoryHandle) {
+  const elementDirectories = REQUIRED_DIRECTORY_PATHS.filter((path) => path === 'elements' || path.startsWith('elements/'))
+
+  for (const directoryPath of elementDirectories) {
+    if (!(await pathExists(rootHandle, directoryPath, 'directory'))) {
+      return false
+    }
+  }
+
+  return true
+}
+
 /**
  * 按相对路径读取项目中的任意文本文件。
  * 适合测试页或后续业务层读取 prompt、章节、要素原文。
@@ -326,6 +329,27 @@ export async function readSystemPrompt(rootHandle: FileSystemDirectoryHandle) {
   return readText(rootHandle, 'prompts/system.md')
 }
 
+/**
+ * 读取当前激活的场景级提示词。
+ * path 为空、不是 prompts/scenes/ 下文件或文件缺失时，返回空字符串，不抛错。
+ */
+export async function readScenePrompt(
+  rootHandle: FileSystemDirectoryHandle,
+  path?: string | null,
+): Promise<string> {
+  const scenePath = path?.trim()
+
+  if (!scenePath || !scenePath.startsWith('prompts/scenes/')) {
+    return ''
+  }
+
+  try {
+    return await readText(rootHandle, scenePath)
+  } catch {
+    return ''
+  }
+}
+
 /**
  * 写回项目中的 `prompts/system.md`。
  */
diff --git a/packages/core/src/core/project/defaults.ts b/packages/core/src/core/project/defaults.ts
index 30e8b23..892d0c8 100644
--- a/packages/core/src/core/project/defaults.ts
+++ b/packages/core/src/core/project/defaults.ts
@@ -49,6 +49,7 @@ export const DEFAULT_CONFIG = {
     embeddingTextVersion: 1,
     enableBackgroundIndexing: true,
     enableDebugLogging: false,
+    activeScenePromptPath: null,
   },
 } as const
 
diff --git a/packages/core/src/core/project/recent-projects.ts b/packages/core/src/core/project/recent-projects.ts
index 3b10a37..813db8b 100644
--- a/packages/core/src/core/project/recent-projects.ts
+++ b/packages/core/src/core/project/recent-projects.ts
@@ -102,6 +102,18 @@ export async function readRecentProjects(): Promise<LastProjectSummary[]> {
   }))
 }
 
+export async function readRecentProject(projectId: string): Promise<LastProjectRecord | null> {
+  const database = await openDatabase()
+  const record = await runStoreRequest<LastProjectRecord | undefined>(
+    database,
+    'readonly',
+    (store) => store.get(`project-${projectId}`),
+  )
+
+  database.close()
+  return record ?? null
+}
+
 export async function forgetLastProject() {
   const database = await openDatabase()
 
diff --git a/packages/core/src/core/rag/indexer.ts b/packages/core/src/core/rag/indexer.ts
index dba84ba..46cd643 100644
--- a/packages/core/src/core/rag/indexer.ts
+++ b/packages/core/src/core/rag/indexer.ts
@@ -201,6 +201,10 @@ function inferTypeFromPath(path: string) {
     return 'location' as const
   }
 
+  if (path.startsWith('elements/entities/')) {
+    return 'entity' as const
+  }
+
   if (path.startsWith('elements/timeline/')) {
     return 'timeline' as const
   }
diff --git a/packages/core/src/core/rag/retrieval-text.ts b/packages/core/src/core/rag/retrieval-text.ts
index 1f0bb95..557a0d8 100644
--- a/packages/core/src/core/rag/retrieval-text.ts
+++ b/packages/core/src/core/rag/retrieval-text.ts
@@ -6,6 +6,7 @@ const MAX_RELATED_CHAPTERS = 20
 const TYPE_LABELS = {
   character: '人物',
   location: '地点',
+  entity: '实体',
   timeline: '时间线',
   plot: '情节',
   worldbuilding: '世界观',
diff --git a/packages/core/src/core/tools/rag-search.ts b/packages/core/src/core/tools/rag-search.ts
index 4966f11..a54a9cf 100644
--- a/packages/core/src/core/tools/rag-search.ts
+++ b/packages/core/src/core/tools/rag-search.ts
@@ -8,7 +8,7 @@ import type {
 } from './types'
 import type { ElementType } from '../../types/rag'
 
-const ELEMENT_TYPES: ElementType[] = ['character', 'location', 'timeline', 'plot', 'worldbuilding']
+const ELEMENT_TYPES: ElementType[] = ['character', 'location', 'entity', 'timeline', 'plot', 'worldbuilding']
 
 export const ragSearchTool: ToolDefinition<'RagSearch', RagSearchInput, RagSearchOutput> = {
   name: 'RagSearch',
diff --git a/packages/core/src/core/tools/types.ts b/packages/core/src/core/tools/types.ts
index c04877c..9746339 100644
--- a/packages/core/src/core/tools/types.ts
+++ b/packages/core/src/core/tools/types.ts
@@ -161,7 +161,7 @@ export type RagSearchInput = {
   topK?: number
   finalLimit?: number
   filters?: {
-    type?: Array<'character' | 'location' | 'timeline' | 'plot' | 'worldbuilding'>
+    type?: Array<'character' | 'location' | 'entity' | 'timeline' | 'plot' | 'worldbuilding'>
     tags?: string[]
     lastUpdatedChapter?: string
   }
@@ -175,7 +175,7 @@ export type RagSearchOutput = {
   candidates: Array<{
     id: string
     sourcePath: string
-    type: 'character' | 'location' | 'timeline' | 'plot' | 'worldbuilding'
+    type: 'character' | 'location' | 'entity' | 'timeline' | 'plot' | 'worldbuilding'
     name: string
     summary: string
     retrievalText: string
diff --git a/packages/core/src/env.d.ts b/packages/core/src/env.d.ts
index 7a1910f..260e2d2 100644
--- a/packages/core/src/env.d.ts
+++ b/packages/core/src/env.d.ts
@@ -23,6 +23,7 @@ interface FileSystemHandle {
   kind: 'file' | 'directory'
   name: string
   isSameEntry(other: FileSystemHandle): Promise<boolean>
+  remove?(options?: { recursive?: boolean }): Promise<void>
 }
 
 interface FileSystemWritableFileStream extends WritableStream {
diff --git a/packages/core/src/services/agent-service.ts b/packages/core/src/services/agent-service.ts
index f3df31c..bbaf9fb 100644
--- a/packages/core/src/services/agent-service.ts
+++ b/packages/core/src/services/agent-service.ts
@@ -3,7 +3,7 @@ import {
   runChatTurn,
 } from '../core/chat/session'
 import { deriveChatTargetFromPath } from '../core/chat/target'
-import { readSystemPrompt } from '../core/fs/project-fs'
+import { readScenePrompt, readSystemPrompt } from '../core/fs/project-fs'
 import type { AgentMessage, AgentToolCall } from '../core/agent/messages'
 import type { ChatMessage, ChatSessionState, ChatTargetContext } from '../types/chat'
 
@@ -60,6 +60,10 @@ export async function runTurn(input: RunAgentTurnInput): Promise<RunAgentTurnRes
 
   try {
     const systemPrompt = await readSystemPrompt(project.handle)
+    const scenePrompt = await readScenePrompt(
+      project.handle,
+      project.config.settings.activeScenePromptPath,
+    )
     const turn = await runChatTurn({
       session: previousSession,
       input: {
@@ -67,6 +71,7 @@ export async function runTurn(input: RunAgentTurnInput): Promise<RunAgentTurnRes
         project,
         config: project.config,
         systemPrompt,
+        scenePrompt,
         activeFilePath: input.activeFilePath,
       },
       onEvent(event) {
diff --git a/packages/core/src/services/element-service.ts b/packages/core/src/services/element-service.ts
index be71c0e..e862229 100644
--- a/packages/core/src/services/element-service.ts
+++ b/packages/core/src/services/element-service.ts
@@ -1,16 +1,30 @@
-import { extractElementsFromChapter } from '../core/elements/extractor'
+import { extractElementsWithLlm } from '../core/elements/extractor-llm'
 import { createElementDocument, writeElementDocuments } from '../core/elements/writer'
 import { markProjectIndexStale } from '../core/rag/indexer'
 
 import { requireRuntimeProject } from './project-runtime'
-import type { ElementExtractionResultView, ElementWriteResultView } from './types'
+import type {
+  ElementExtractionResultView,
+  ElementWriteResultView,
+} from './types'
 
+/**
+ * 使用项目配置的 LLM 对单章正文做结构化要素提取。
+ * LLM 不可用（未配置、网络异常、解析失败）时直接抛错，由 UI 提示用户。
+ * 不再回退到规则型正则提取——正则会生成大量低质量误匹配内容，对创作有害无益。
+ */
 export async function previewElementExtraction(input: {
+  projectId: string
   chapterContent: string
   chapterPath?: string
-  systemPrompt?: string
 }): Promise<ElementExtractionResultView> {
-  return extractElementsFromChapter(input)
+  const project = requireRuntimeProject(input.projectId)
+
+  return extractElementsWithLlm({
+    chapterContent: input.chapterContent,
+    chapterPath: input.chapterPath,
+    config: project.config,
+  })
 }
 
 export async function writeExtractedElements(input: {
@@ -21,6 +35,7 @@ export async function writeExtractedElements(input: {
   const items = [
     ...input.extraction.characters,
     ...input.extraction.locations,
+    ...input.extraction.entities,
     ...input.extraction.timeline,
     ...input.extraction.plots,
     ...input.extraction.worldbuilding,
diff --git a/packages/core/src/services/project-service.ts b/packages/core/src/services/project-service.ts
index ca9e48d..8ea2e12 100644
--- a/packages/core/src/services/project-service.ts
+++ b/packages/core/src/services/project-service.ts
@@ -3,7 +3,6 @@ import {
   findFirstReadableFile,
   inspectProject as inspectCoreProject,
   isFileSystemAccessSupported,
-  loadProjectFromHandle,
   pickProjectDirectory,
   repairProject,
   rescanProject,
@@ -14,6 +13,7 @@ import {
   forgetRecentProject as forgetStoredRecentProject,
   hasProjectPermission,
   readLastProject,
+  readRecentProject,
   readRecentProjects,
   requestProjectPermission,
   saveLastProject,
@@ -50,7 +50,7 @@ export async function openProject(): Promise<ProjectView> {
   const handle = await pickProjectDirectory()
   const inspection = await inspectCoreProject(handle)
   // repairProject is intentionally used for both valid and incomplete projects:
-  // it loads valid projects and gently fills missing optional defaults.
+  // it loads valid projects and gently fills the structure required for loading.
   const project = await repairProject(handle)
 
   await activateProject(project, 'project_opened', `打开项目「${project.name}」`, {
@@ -78,7 +78,7 @@ export async function restoreLastProject(): Promise<ProjectView | null> {
     return null
   }
 
-  const project = await loadProjectFromHandle(record.handle)
+  const project = await repairProject(record.handle)
   await activateProject(project, 'project_restored', `恢复上次项目「${project.name}」`, {
     rememberedAt: record.lastOpenedAt,
   })
@@ -88,6 +88,33 @@ export async function restoreLastProject(): Promise<ProjectView | null> {
   })
 }
 
+export async function restoreRecentProject(projectId: string): Promise<ProjectView | null> {
+  assertFileSystemAccessSupported()
+
+  const record = await readRecentProject(projectId)
+
+  if (!record) {
+    return null
+  }
+
+  const hasPermission = await hasProjectPermission(record.handle)
+    || await requestProjectPermission(record.handle)
+
+  if (!hasPermission) {
+    return null
+  }
+
+  const project = await repairProject(record.handle)
+  await activateProject(project, 'project_restored_from_recent', `恢复最近项目「${project.name}」`, {
+    rememberedAt: record.lastOpenedAt,
+    requestedProjectId: projectId,
+  })
+
+  return toProjectView(project, {
+    activeFilePath: findFirstReadableFile(project.tree) ?? undefined,
+  })
+}
+
 export async function getLastProjectSummary(): Promise<LastProjectSummaryView | null> {
   const record = await readLastProject()
   return record ? toLastProjectSummary(record) : null
@@ -105,6 +132,42 @@ export async function forgetRecentProject(projectId: string): Promise<void> {
   await forgetStoredRecentProject(projectId)
 }
 
+export async function deleteRecentProject(
+  projectId: string,
+  options: {
+    deleteDirectory?: boolean
+  } = {},
+): Promise<void> {
+  const record = await readRecentProject(projectId)
+
+  if (!record) {
+    await forgetStoredRecentProject(projectId)
+    return
+  }
+
+  if (options.deleteDirectory) {
+    assertFileSystemAccessSupported()
+
+    const hasPermission = await hasProjectPermission(record.handle)
+      || await requestProjectPermission(record.handle)
+
+    if (!hasPermission) {
+      throw new Error('没有获得项目目录读写权限，已取消删除本地目录。')
+    }
+
+    await removeProjectDirectory(record.handle)
+  }
+
+  await forgetStoredRecentProject(projectId)
+
+  const lastRecord = await readLastProject()
+  if (lastRecord?.projectId === projectId) {
+    await forgetStoredLastProject()
+  }
+
+  removeRuntimeProject(projectId)
+}
+
 export async function closeProject(projectId: string): Promise<void> {
   const project = getRuntimeProject(projectId)
 
@@ -183,6 +246,18 @@ function assertFileSystemAccessSupported() {
   }
 }
 
+async function removeProjectDirectory(handle: FileSystemDirectoryHandle) {
+  const removableHandle = handle as FileSystemDirectoryHandle & {
+    remove?: (options?: { recursive?: boolean }) => Promise<void>
+  }
+
+  if (!removableHandle.remove) {
+    throw new Error('当前浏览器不支持直接删除已记住的项目目录，请在系统文件管理器中手动删除。')
+  }
+
+  await removableHandle.remove({ recursive: true })
+}
+
 function asRecord(value: unknown) {
   return value && typeof value === 'object'
     ? value as Record<string, unknown>
diff --git a/packages/core/src/services/types.ts b/packages/core/src/services/types.ts
index 528f51d..731aafb 100644
--- a/packages/core/src/services/types.ts
+++ b/packages/core/src/services/types.ts
@@ -41,6 +41,7 @@ export type ProjectConfigView = {
     embeddingTextVersion: number
     enableBackgroundIndexing: boolean
     enableDebugLogging: boolean
+    activeScenePromptPath: string | null
   }
 }
 
@@ -94,7 +95,7 @@ export type LlmStreamInputView = {
   instruction: string
 }
 
-export type ElementTypeView = 'character' | 'location' | 'timeline' | 'plot' | 'worldbuilding'
+export type ElementTypeView = 'character' | 'location' | 'entity' | 'timeline' | 'plot' | 'worldbuilding'
 
 export type IndexStatusView = 'empty' | 'building' | 'ready' | 'stale' | 'rebuilding' | 'error'
 
@@ -173,6 +174,7 @@ export type ElementExtractionItemView = {
 export type ElementExtractionResultView = {
   characters: ElementExtractionItemView[]
   locations: ElementExtractionItemView[]
+  entities: ElementExtractionItemView[]
   timeline: ElementExtractionItemView[]
   plots: ElementExtractionItemView[]
   worldbuilding: ElementExtractionItemView[]
diff --git a/packages/core/src/types/chat.ts b/packages/core/src/types/chat.ts
index 6f926ba..6122430 100644
--- a/packages/core/src/types/chat.ts
+++ b/packages/core/src/types/chat.ts
@@ -144,6 +144,7 @@ export type ChatTurnInput = {
   project: ProjectSnapshot
   config: ProjectConfig
   systemPrompt: string
+  scenePrompt?: string
   activeFilePath?: string | null
 }
 
diff --git a/packages/core/src/types/elements.ts b/packages/core/src/types/elements.ts
index 27b462e..babb980 100644
--- a/packages/core/src/types/elements.ts
+++ b/packages/core/src/types/elements.ts
@@ -30,6 +30,7 @@ export type ElementExtractionItem = {
 export type ElementExtractionResult = {
   characters: ElementExtractionItem[]
   locations: ElementExtractionItem[]
+  entities: ElementExtractionItem[]
   timeline: ElementExtractionItem[]
   plots: ElementExtractionItem[]
   worldbuilding: ElementExtractionItem[]
diff --git a/packages/core/src/types/project.ts b/packages/core/src/types/project.ts
index 936da43..6a5a857 100644
--- a/packages/core/src/types/project.ts
+++ b/packages/core/src/types/project.ts
@@ -51,6 +51,11 @@ export type ProjectConfig = {
     embeddingTextVersion: number
     enableBackgroundIndexing: boolean
     enableDebugLogging: boolean
+    /**
+     * 当前激活的场景级提示词路径（相对于项目根，如 prompts/scenes/scene-001.md）。
+     * 留空时不注入任何场景提示词；切换后会话首轮注入生效。
+     */
+    activeScenePromptPath: string | null
   }
 }
 
diff --git a/packages/core/src/types/rag.ts b/packages/core/src/types/rag.ts
index 9d118c7..38576b1 100644
--- a/packages/core/src/types/rag.ts
+++ b/packages/core/src/types/rag.ts
@@ -1,4 +1,4 @@
-export type ElementType = 'character' | 'location' | 'timeline' | 'plot' | 'worldbuilding'
+export type ElementType = 'character' | 'location' | 'entity' | 'timeline' | 'plot' | 'worldbuilding'
 
 export type IndexStatus = 'empty' | 'building' | 'ready' | 'stale' | 'rebuilding' | 'error'
 
diff --git a/packages/core/tsconfig.tsbuildinfo b/packages/core/tsconfig.tsbuildinfo
deleted file mode 100644
index e9ae56e..0000000
--- a/packages/core/tsconfig.tsbuildinfo
+++ /dev/null
@@ -1 +0,0 @@
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