diff --git a/ui/src/api/API_README.md b/ui/src/api/API_README.md
index 0c8572c6a76..43ed27c5c2b 100644
--- a/ui/src/api/API_README.md
+++ b/ui/src/api/API_README.md
@@ -502,7 +502,7 @@ Workspace 智能体分页方法只接收分页与查询条件，从当前资源
 ### 对话接口
 
 Admin 调试接口在 `admin/workspace/conversation.ts`，正式 Chat 接口在 `chat/conversation.ts`，
-使用各自请求客户端。面板 `common/get-api.ts` 仅按 ChatType 选择完整 API，不拼 URL。
+使用各自请求客户端。对话面板由各视图（`view/debug`、`view/chat`、`view/portal`）选择对应 API，不拼 URL。
 Chat 协议及认证接口见 [chat/README.md](chat/README.md)。
 
 历史消息和流式聚合复用 `@/api/types` 的 `ChatContent`，定义在 `types/chat-log.ts`；
diff --git a/ui/src/components/COMPONENT_README.md b/ui/src/components/COMPONENT_README.md
index 9b1abfd58d0..56481f9c3b4 100644
--- a/ui/src/components/COMPONENT_README.md
+++ b/ui/src/components/COMPONENT_README.md
@@ -975,7 +975,9 @@ Workspace API 内部使用 `getWorkspaceId()`，System 共享 API 不接收工
 正式对话的 `message-list` 根据会话 Store 的 `isShared` 展示分享选择态，同轮提问与回答同步选择，
 内容只读且选中时显示背景；无记录 ID 的问答不可选。列表底部提供当前已加载轮次的全选、已选数量、
 取消及创建链接，创建时按消息顺序提交记录 ID；成功退出分享，失败保留选择。分享期间主面板隐藏输入框，
-消息列表卸载时退出分享态。分享入口仅在 `SHAREABLE_VIEWS`（Chat、Portal）显示，调试、日志等视图不提供分享服务。
+消息列表卸载时退出分享态。分享入口按 `view/index.ts` 的 `useShowShare()` 显示：Chat、Portal 视图按智能体的
+`show_share` provide `SHOW_SHARE_KEY`（门户还要求已选定智能体），调试、日志等视图不提供，即不显示。
+门户侧栏与历史对话抽屉的分享入口跨多个智能体，暂不受 `show_share` 控制。
 分享选择放在 `message-list/share/`：`index.ts` 的 `createShareLinkStore({ messages, share, setShared })` 维护
 每条消息的记录 ID、已选记录、数量与全选状态、单条切换、全选、进入（`enterShare`）、提交（`copyShareLink`）
 及退出（`exitShare`）；提交成功后退出，失败保留选择。分享模式开关仍由会话 Store 的 `isShared` 维护，
diff --git a/ui/src/conversation-panel/components/content/items/question/index.vue b/ui/src/conversation-panel/components/content/items/question/index.vue
index 8448fb0b629..a0fced537d5 100644
--- a/ui/src/conversation-panel/components/content/items/question/index.vue
+++ b/ui/src/conversation-panel/components/content/items/question/index.vue
@@ -13,13 +13,13 @@ import { copyText } from '@/utils/clipboard'
 
 import { MESSAGE_LIST_KEY } from '../../../message-list/index'
 import { CONVERSATION_LIST_KEY } from '../../../../left-sidebar/conversation-list/index'
-import { useViewType } from '../../../../view/index'
-import { SHAREABLE_VIEWS, useShareLinkStoreOptional, useShareRecordId } from '../../../message-list/share/index'
+import { useShowShare } from '../../../../view/index'
+import { useShareLinkStoreOptional, useShareRecordId } from '../../../message-list/share/index'
 
 defineOptions({ name: 'ConversationQuestionContent' })
 
-// 仅提供分享服务的视图（对话、门户）显示分享入口；进入分享时预先勾选所属轮次。
-const showShare = SHAREABLE_VIEWS.includes(useViewType())
+// 智能体允许分享时显示分享入口；进入分享时预先勾选所属轮次。
+const showShare = useShowShare()
 const shareLink = useShareLinkStoreOptional()
 const shareRecordId = useShareRecordId()
 
diff --git a/ui/src/conversation-panel/components/header/chat/index.vue b/ui/src/conversation-panel/components/header/chat/index.vue
index 1604d1b1c50..315b15c738b 100644
--- a/ui/src/conversation-panel/components/header/chat/index.vue
+++ b/ui/src/conversation-panel/components/header/chat/index.vue
@@ -3,12 +3,11 @@ import { computed } from 'vue'
 import { useConversationListStore } from '../../../left-sidebar/conversation-list/index'
 import { useMessageListStore } from '../../message-list/index'
 import { useShareLinkStoreOptional } from '../../message-list/share/index'
+import { useShowShare } from '../../../view/index'
 
 const props = defineProps<{
   /** 新建对话；不传时在当前应用中新建（门户在没有当前智能体时改为选择智能体） */
   newConversation?: () => void
-  /** 显示分享入口；仅对话端传入 */
-  shareable?: boolean
 }>()
 const list = useConversationListStore()
 
@@ -17,7 +16,7 @@ const msgs = useMessageListStore()
 const shareLink = useShareLinkStoreOptional()
 // 回答生成中或没有消息时不可分享
 const canShare = computed(() => msgs.messages.value.length > 0 && !msgs.streamLoading.value)
-
+const showShare = useShowShare()
 const handleNewConversation = () => (props.newConversation ? props.newConversation() : list.newConversation())
 </script>
 
@@ -44,12 +43,11 @@ const handleNewConversation = () => (props.newConversation ? props.newConversati
         </el-button>
       </MkTooltip>
       <!-- 进入分享模式，勾选要分享的对话 -->
-      <MkTooltip v-if="shareable" content="分享">
+      <MkTooltip v-if="showShare" content="分享">
         <el-button text :disabled="!canShare" @click="shareLink?.enterShare()">
           <MkIcon name="icon_share_outlined" :size="18" :class="canShare ? 'text-N900!' : 'text-N400!'" />
         </el-button>
       </MkTooltip>
-
       <slot />
     </template>
   </header>
diff --git a/ui/src/conversation-panel/components/header/portal/index.vue b/ui/src/conversation-panel/components/header/portal/index.vue
index 9663054669b..316394ba67b 100644
--- a/ui/src/conversation-panel/components/header/portal/index.vue
+++ b/ui/src/conversation-panel/components/header/portal/index.vue
@@ -2,12 +2,11 @@
 import { computed } from 'vue'
 import { useConversationListStore } from '../../../left-sidebar/conversation-list/index'
 import { useMessageListStore } from '../../message-list/index'
+import { useShowShare } from '../../../view/index'
 
 const props = defineProps<{
   /** 新建对话；不传时在当前应用中新建（门户在没有当前智能体时改为选择智能体） */
   newConversation?: () => void
-  /** 显示分享入口；仅对话端传入 */
-  shareable?: boolean
 }>()
 
 const emit = defineEmits<{ share: [] }>()
@@ -16,6 +15,7 @@ const list = useConversationListStore()
 const msgs = useMessageListStore()
 // 回答生成中或没有消息时不可分享
 const canShare = computed(() => msgs.messages.value.length > 0 && !msgs.streamLoading.value && !msgs.loading.value)
+const showShare = useShowShare()
 
 const handleNewConversation = () => (props.newConversation ? props.newConversation() : list.newConversation())
 </script>
@@ -48,7 +48,7 @@ const handleNewConversation = () => (props.newConversation ? props.newConversati
       </el-button>
     </MkTooltip>
     <!-- 进入分享模式，勾选要分享的对话 -->
-    <MkTooltip v-if="shareable" content="分享">
+    <MkTooltip v-if="showShare" content="分享">
       <el-button text :disabled="!canShare" @click="emit('share')">
         <MkIcon name="icon_share_outlined" :size="18" class="text-N900!" />
       </el-button>
diff --git a/ui/src/conversation-panel/components/message-footer/index.vue b/ui/src/conversation-panel/components/message-footer/index.vue
index 3f6312d45fc..729bc57e16d 100644
--- a/ui/src/conversation-panel/components/message-footer/index.vue
+++ b/ui/src/conversation-panel/components/message-footer/index.vue
@@ -10,8 +10,8 @@ import type { ChatMessage, ChatRecordMeta } from '../../core/types'
 import { useExecutionDetailStore } from '../../right-sidebar/execution-detail/index'
 
 import { MESSAGE_LIST_KEY } from '../message-list/index'
-import { SHAREABLE_VIEWS, useShareLinkStoreOptional } from '../message-list/share/index'
-import { useViewType } from '../../view/index'
+import { useShareLinkStoreOptional } from '../message-list/share/index'
+import { useShowShare } from '../../view/index'
 
 const props = defineProps<{ message: ChatMessage }>()
 const emit = defineEmits<{ resize: [] }>()
@@ -25,8 +25,8 @@ onMounted(() => {
 })
 onBeforeUnmount(() => footerObserver?.disconnect())
 
-// 仅提供分享服务的视图（对话、门户）显示分享入口；进入分享时预先勾选当前回答所属轮次。
-const showShare = SHAREABLE_VIEWS.includes(useViewType())
+// 智能体允许分享时显示分享入口；进入分享时预先勾选当前回答所属轮次。
+const showShare = useShowShare()
 const shareLink = useShareLinkStoreOptional()
 // 回答生成中禁用分享。
 const messageList = inject(MESSAGE_LIST_KEY, null)
diff --git a/ui/src/conversation-panel/components/message-list/share/index.ts b/ui/src/conversation-panel/components/message-list/share/index.ts
index 03d0aa4751b..8eb9378f9ed 100644
--- a/ui/src/conversation-panel/components/message-list/share/index.ts
+++ b/ui/src/conversation-panel/components/message-list/share/index.ts
@@ -1,9 +1,5 @@
 import { computed, inject, ref, type InjectionKey, type Ref } from 'vue'
 import type { ChatMessage } from '../../../core/types'
-import { VIEW_TYPE, type ViewType } from '../../../view/index'
-
-/** 提供分享服务的视图；其他视图不显示进入分享选择的入口。 */
-export const SHAREABLE_VIEWS: readonly ViewType[] = [VIEW_TYPE.CHAT, VIEW_TYPE.PORTAL]
 
 export interface ShareLinkDeps {
   /** 当前会话消息：只读，由消息列表 Store 维护 */
diff --git a/ui/src/conversation-panel/core/enums.ts b/ui/src/conversation-panel/core/enums.ts
deleted file mode 100644
index afdb09fbdbd..00000000000
--- a/ui/src/conversation-panel/core/enums.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-/** 对话面板运行模式。 */
-export const CHAT_TYPE = {
-  CHAT: 'CHAT',
-  DEBUG: 'DEBUG',
-} as const
diff --git a/ui/src/conversation-panel/core/types.ts b/ui/src/conversation-panel/core/types.ts
index 7b567badf2d..c02bce01053 100644
--- a/ui/src/conversation-panel/core/types.ts
+++ b/ui/src/conversation-panel/core/types.ts
@@ -1,4 +1,3 @@
-import type { CHAT_TYPE } from './enums'
 import type { ChatFeedback, ChatApplicationProfile, ChatContent, ChatLogRecord, ChatUserProfile, Dict } from '@/api/types'
 
 /**
@@ -53,8 +52,6 @@ interface StreamContentBatch {
 /** SSE 支持批量内容分片，也支持直接发送单个内容项。 */
 export type StreamChunk = StreamContentBatch | ChatContent
 
-export type ChatType = (typeof CHAT_TYPE)[keyof typeof CHAT_TYPE]
-
 // 通用「发起/续跑一次对话」的参数。message-input、表单节点等任何能发起对话的地方共用。
 export interface SendMessageOptions {
   chatId?: string // 目标会话 id;新建会话时由调用方(message-input)惰性生成后传入,缺省沿用当前已加载会话
diff --git a/ui/src/conversation-panel/left-sidebar/conversation-list/index.vue b/ui/src/conversation-panel/left-sidebar/conversation-list/index.vue
index 2b8fc82859b..0dbbc311943 100644
--- a/ui/src/conversation-panel/left-sidebar/conversation-list/index.vue
+++ b/ui/src/conversation-panel/left-sidebar/conversation-list/index.vue
@@ -10,7 +10,7 @@ import AccountMenu from '../account-menu/index.vue'
 
 import { useMessageListStore } from '../../components/message-list/index'
 import { useShareLinkStoreOptional } from '../../components/message-list/share/index'
-import { useViewType, VIEW_TYPE, type ViewType } from '../../view/index'
+import { useShowShare, useViewType, VIEW_TYPE, type ViewType } from '../../view/index'
 
 defineOptions({ name: 'ConversationList' })
 
@@ -22,6 +22,7 @@ const SHOW_PROFILE: readonly ViewType[] = [VIEW_TYPE.CHAT, VIEW_TYPE.PORTAL]
 const msgs = useMessageListStore()
 // 会话菜单分享默认全选，内容分享由内容入口指定记录。
 const shareLink = useShareLinkStoreOptional()
+const showShare = useShowShare()
 const canShare = computed(() => msgs.messages.value.length > 0 && !msgs.streamLoading.value && !msgs.loading.value)
 
 const { appInfo, conversations, currentChatId, selectConversation, newConversation, deleteChat, toggleLeftSide, hasMore, loadMore } =
@@ -123,7 +124,7 @@ function handleClearConversations() {
                   <MkDropdownMenu>
                     <!-- 激活所选对话并全选分享 -->
                     <MkDropdownItem
-                      v-if="viewType === VIEW_TYPE.CHAT"
+                      v-if="showShare"
                       :disabled="msgs.loading.value || (currentChatId === conversation.id && !canShare)"
                       @click="handleShareConversation(conversation)"
                     >
diff --git a/ui/src/conversation-panel/main/chat-panel/index.vue b/ui/src/conversation-panel/main/chat-panel/index.vue
index 8eed9dadb8a..faf4d3d6603 100644
--- a/ui/src/conversation-panel/main/chat-panel/index.vue
+++ b/ui/src/conversation-panel/main/chat-panel/index.vue
@@ -6,13 +6,6 @@ import MessageInput from '../../components/message-input/index.vue'
 import { useConversationListStore } from '../../left-sidebar/conversation-list/index'
 import { useMessageInputStore } from '../../components/message-input/index'
 
-defineProps<{
-  /** 标题栏显示分享入口；仅对话端传入 */
-  shareable?: boolean
-}>()
-
-const emit = defineEmits<{ share: [] }>()
-
 const list = useConversationListStore()
 const input = useMessageInputStore()
 // 拖拽到面板任意处 → 交给 message-input 接收文件
@@ -25,7 +18,7 @@ const disclaimerText = computed(() => (list.appInfo.value?.disclaimer ? list.app
   <main class="mk-conversation-main" @drop.prevent="handleDrop" @dragover.prevent>
     <!-- 头部可被替换(如 debug 用 debug header);默认普通 chat header -->
     <slot name="header">
-      <ChatHeader :shareable="shareable" @share="emit('share')" />
+      <ChatHeader />
     </slot>
     <!-- 聊天背景铺满标题栏以下的消息区与输入区，与显示设置预览一致 -->
     <div
diff --git a/ui/src/conversation-panel/main/portal-chat-panel/index.vue b/ui/src/conversation-panel/main/portal-chat-panel/index.vue
index 0dfb304fa93..ca369e6c5eb 100644
--- a/ui/src/conversation-panel/main/portal-chat-panel/index.vue
+++ b/ui/src/conversation-panel/main/portal-chat-panel/index.vue
@@ -27,7 +27,7 @@ const disclaimerText = computed(() =>
   <!-- 门户对话主面板:header + message-list + message-input -->
   <main class="mk-conversation-main" @drop.prevent="handleDrop" @dragover.prevent>
     <!-- 收起侧栏时标题栏的新建对话与侧栏一致：没有当前智能体时选择智能体 -->
-    <PortalHeader :new-conversation="portalList.newConversation" shareable @share="shareLink?.enterShare()" />
+    <PortalHeader :new-conversation="portalList.newConversation" @share="shareLink?.enterShare()" />
     <MessageList :key="list.currentChatId.value" v-if="portalList.currentApplicationId.value" :app-name="list.appInfo.value?.name || 'AI 助手'" />
     <!-- 未确定智能体时不显示欢迎语：分组加载完成且没有可用智能体时显示空状态 -->
     <div v-else class="flex-center min-h-0 flex-1">
diff --git a/ui/src/conversation-panel/view/chat/index.vue b/ui/src/conversation-panel/view/chat/index.vue
index 262cffa4076..749cdf96ed8 100644
--- a/ui/src/conversation-panel/view/chat/index.vue
+++ b/ui/src/conversation-panel/view/chat/index.vue
@@ -13,7 +13,7 @@ import { MESSAGE_INPUT_KEY } from '../../components/message-input/index'
 import { EXECUTION_DETAIL_KEY } from '../../right-sidebar/execution-detail/index'
 import { SHARE_LINK_KEY } from '../../components/message-list/share/index'
 import { createChatConversation, createChatUserProfileGetter } from './index'
-import { VIEW_KEY, VIEW_TYPE, DEVICE_KEY, CHAT_USER_PROFILE_KEY, createDeviceType } from '../index.ts'
+import { VIEW_KEY, VIEW_TYPE, DEVICE_KEY, CHAT_USER_PROFILE_KEY, SHOW_SHARE_KEY, createDeviceType } from '../index.ts'
 
 const bundle = createChatConversation()
 
@@ -38,6 +38,11 @@ provide(MESSAGE_INPUT_KEY, bundle.input)
 provide(EXECUTION_DETAIL_KEY, bundle.detail)
 provide(SHARE_LINK_KEY, bundle.share)
 provide(VIEW_KEY, VIEW_TYPE.CHAT)
+// 智能体开启「允许分享对话记录」时显示标题栏、会话菜单、提问与回答上的分享入口
+provide(
+  SHOW_SHARE_KEY,
+  computed(() => Boolean(bundle.list.appInfo.value?.show_share)),
+)
 // HTML 内容 iframe 内 chatUserProfile() 取当前对话用户
 provide(CHAT_USER_PROFILE_KEY, createChatUserProfileGetter())
 
@@ -83,7 +88,7 @@ watch([() => bundle.list.currentChatId.value, () => bundle.list.composerResetSig
     @mask-click="closeDrawers"
   >
     <template #left><ConversationList /></template>
-    <template #main><ChatPanel shareable /></template>
+    <template #main><ChatPanel /></template>
     <template #right><ExecutionDetail /></template>
   </ConversationLayout>
 </template>
diff --git a/ui/src/conversation-panel/view/index.ts b/ui/src/conversation-panel/view/index.ts
index d6b74cdfbbc..028b3f9c213 100644
--- a/ui/src/conversation-panel/view/index.ts
+++ b/ui/src/conversation-panel/view/index.ts
@@ -49,3 +49,10 @@ export const CHAT_USER_PROFILE_KEY: InjectionKey<GetChatUserProfile> = Symbol('c
 export function useChatUserProfileGetter(): GetChatUserProfile {
   return inject(CHAT_USER_PROFILE_KEY, () => Promise.resolve(null))
 }
+
+/** 是否显示进入分享选择的入口；Chat、Portal 视图按智能体的 show_share 提供，调试、日志等视图不提供即不显示。 */
+export const SHOW_SHARE_KEY: InjectionKey<Readonly<Ref<boolean>>> = Symbol('conversation-show-share')
+
+export function useShowShare(): Readonly<Ref<boolean>> {
+  return inject(SHOW_SHARE_KEY, () => computed(() => false), true)
+}
diff --git a/ui/src/conversation-panel/view/portal/index.vue b/ui/src/conversation-panel/view/portal/index.vue
index c492eb30314..2d261b4cc55 100644
--- a/ui/src/conversation-panel/view/portal/index.vue
+++ b/ui/src/conversation-panel/view/portal/index.vue
@@ -17,7 +17,7 @@ import { PORTAL_CONVERSATION_LIST_KEY } from '../../left-sidebar/portal-conversa
 import { SHARE_LINK_KEY } from '../../components/message-list/share/index'
 import { createPortalConversation } from './index'
 import { createChatUserProfileGetter } from '../chat/index'
-import { VIEW_KEY, VIEW_TYPE, DEVICE_KEY, CHAT_USER_PROFILE_KEY, createDeviceType } from '../index.ts'
+import { VIEW_KEY, VIEW_TYPE, DEVICE_KEY, CHAT_USER_PROFILE_KEY, SHOW_SHARE_KEY, createDeviceType } from '../index.ts'
 
 const applicationSelectorRef = ref<InstanceType<typeof SelectApplicationDrawer>>()
 const bundle = createPortalConversation({ openApplicationSelector: () => applicationSelectorRef.value?.open() })
@@ -44,6 +44,11 @@ provide(EXECUTION_DETAIL_KEY, bundle.detail)
 provide(SHARE_LINK_KEY, bundle.share)
 provide(PORTAL_CONVERSATION_LIST_KEY, bundle.portalList)
 provide(VIEW_KEY, VIEW_TYPE.PORTAL)
+// 当前智能体开启「允许分享对话记录」时显示标题栏、提问与回答上的分享入口
+provide(
+  SHOW_SHARE_KEY,
+  computed(() => Boolean(bundle.portalList.currentApplicationId.value && bundle.list.appInfo.value?.show_share)),
+)
 // HTML 内容 iframe 内 chatUserProfile() 取当前对话用户
 provide(CHAT_USER_PROFILE_KEY, createChatUserProfileGetter())
 // 响应式:窄屏 drawer,宽屏 push