diff --git a/apps/stage-tamagotchi/src/renderer/pages/settings/data/index.vue b/apps/stage-tamagotchi/src/renderer/pages/settings/data/index.vue
index 4fb83782c..c5c7edb96 100644
--- a/apps/stage-tamagotchi/src/renderer/pages/settings/data/index.vue
+++ b/apps/stage-tamagotchi/src/renderer/pages/settings/data/index.vue
@@ -1,4 +1,6 @@
 <script setup lang="ts">
+import type { ChatSessionsExport } from '@proj-airi/stage-ui/types/chat-session'
+
 import ChatsSection from '@proj-airi/stage-pages/pages/settings/data/components/chats-section.vue'
 import DangerSection from '@proj-airi/stage-pages/pages/settings/data/components/danger-section.vue'
 import ModelsModulesSection from '@proj-airi/stage-pages/pages/settings/data/components/models-modules-section.vue'
@@ -9,14 +11,21 @@ import { createDataSettingsStatusState } from '@proj-airi/stage-pages/pages/sett
 import DesktopFolderSection from './components/desktop-folder-section.vue'
 import DesktopResetSection from './components/desktop-reset-section.vue'
 
+import { useChatSyncStore } from '../../../stores/chat-sync'
+
 const { statusMessage, statusTone, handleStatus } = createDataSettingsStatusState()
+const chatSync = useChatSyncStore()
+
+async function syncImportedChats(payload: ChatSessionsExport) {
+  await chatSync.requestImportSessions(payload)
+}
 </script>
 
 <template>
   <div :class="['flex flex-col gap-4 pb-4']">
     <StatusBanner v-if="statusMessage" :message="statusMessage" :tone="statusTone" />
     <DesktopFolderSection @status="handleStatus" />
-    <ChatsSection @status="handleStatus" />
+    <ChatsSection :sync-imported-chats="syncImportedChats" @status="handleStatus" />
     <ModelsModulesSection @status="handleStatus" />
     <DesktopResetSection @status="handleStatus" />
     <DangerSection @status="handleStatus" />
diff --git a/apps/stage-tamagotchi/src/renderer/stores/chat-sync-lifecycle.test.ts b/apps/stage-tamagotchi/src/renderer/stores/chat-sync-lifecycle.test.ts
index 32f9bf5f5..371753ae8 100644
--- a/apps/stage-tamagotchi/src/renderer/stores/chat-sync-lifecycle.test.ts
+++ b/apps/stage-tamagotchi/src/renderer/stores/chat-sync-lifecycle.test.ts
@@ -62,24 +62,25 @@ describe('createChatSyncWindowLifecycle', async () => {
     expect(chatSyncStoreMock.dispose).not.toHaveBeenCalled()
   })
 
-  it('does not initialize chat sync for settings windows', () => {
+  // https://github.com/moeru-ai/airi/issues/2087
+  it('issue #2087: initializes settings windows as command clients', () => {
     const lifecycle = createChatSyncWindowLifecycle('/', '#/settings')
 
     lifecycle.initialize()
     lifecycle.dispose()
 
-    expect(chatSyncStoreMock.initialize).not.toHaveBeenCalled()
-    expect(chatSyncStoreMock.dispose).not.toHaveBeenCalled()
+    expect(chatSyncStoreMock.initialize).toHaveBeenCalledWith('client')
+    expect(chatSyncStoreMock.dispose).toHaveBeenCalledTimes(1)
   })
 
-  it('does not initialize chat sync for nested settings windows', () => {
+  it('initializes nested settings windows as command clients', () => {
     const lifecycle = createChatSyncWindowLifecycle('/', '#/settings/unrelated')
 
     lifecycle.initialize()
     lifecycle.dispose()
 
-    expect(chatSyncStoreMock.initialize).not.toHaveBeenCalled()
-    expect(chatSyncStoreMock.dispose).not.toHaveBeenCalled()
+    expect(chatSyncStoreMock.initialize).toHaveBeenCalledWith('client')
+    expect(chatSyncStoreMock.dispose).toHaveBeenCalledTimes(1)
   })
 
   it('normalizes hash query strings when resolving the initial route', () => {
diff --git a/apps/stage-tamagotchi/src/renderer/stores/chat-sync-lifecycle.ts b/apps/stage-tamagotchi/src/renderer/stores/chat-sync-lifecycle.ts
index ae66949b4..2993a8541 100644
--- a/apps/stage-tamagotchi/src/renderer/stores/chat-sync-lifecycle.ts
+++ b/apps/stage-tamagotchi/src/renderer/stores/chat-sync-lifecycle.ts
@@ -1,6 +1,6 @@
 import { useChatSyncStore } from './chat-sync'
 
-type ChatSyncWindowRole = 'authority' | 'follower'
+type ChatSyncWindowRole = 'authority' | 'follower' | 'client'
 
 function normalizeRoutePath(routePath: string) {
   const [path = ''] = routePath.split(/[?#]/)
@@ -21,6 +21,8 @@ function resolveChatSyncWindowRole(routePath: string): ChatSyncWindowRole | null
     return 'authority'
   if (path === '/chat' || path === '/spotlight')
     return 'follower'
+  if (path === '/settings' || path.startsWith('/settings/'))
+    return 'client'
   return null
 }
 
diff --git a/apps/stage-tamagotchi/src/renderer/stores/chat-sync.test.ts b/apps/stage-tamagotchi/src/renderer/stores/chat-sync.test.ts
index a50e16dae..6094fb803 100644
--- a/apps/stage-tamagotchi/src/renderer/stores/chat-sync.test.ts
+++ b/apps/stage-tamagotchi/src/renderer/stores/chat-sync.test.ts
@@ -1,5 +1,6 @@
 // @vitest-environment jsdom
 
+import type { ChatSessionsExport } from '@proj-airi/stage-ui/types/chat-session'
 import type { Tool } from '@xsai/shared-chat'
 import type { Ref } from 'vue'
 
@@ -25,6 +26,8 @@ interface MockChatMessage {
   tool_results?: Array<{ id: string, isError?: boolean, result: unknown }>
 }
 
+type MockImportSessions = ReturnType<typeof vi.fn<(payload: ChatSessionsExport) => Promise<void>>>
+
 class MockBroadcastChannel {
   static channels = new Map<string, Set<MockBroadcastChannel>>()
   static messages: unknown[] = []
@@ -106,6 +109,7 @@ interface MockState {
   applyRemoteSnapshot: ReturnType<typeof vi.fn>
   setSessionMessages: ReturnType<typeof vi.fn>
   getSessionMessages: ReturnType<typeof vi.fn>
+  importSessions: MockImportSessions
   ingest: ReturnType<typeof vi.fn>
 }
 
@@ -123,6 +127,7 @@ vi.mock('@proj-airi/stage-ui/stores/chat/session-store', () => ({
       sessionMetas: mockState.sessionMetas.value,
     })),
     getSessionMessages: mockState.getSessionMessages,
+    importSessions: mockState.importSessions,
     setSessionMessages: mockState.setSessionMessages,
   }),
 }))
@@ -219,6 +224,7 @@ describe('useChatSyncStore', async () => {
     })
 
     const getSessionMessages = vi.fn((sessionId: string) => sessionMessages.value[sessionId] ?? [])
+    const importSessions = vi.fn<(payload: ChatSessionsExport) => Promise<void>>().mockResolvedValue(undefined)
 
     const ingest = vi.fn(async () => {
       throw new Error('Remote sent 403 response: {"error":{"message":"This model is not available in your region.","code":403}}')
@@ -240,6 +246,7 @@ describe('useChatSyncStore', async () => {
       applyRemoteSnapshot,
       setSessionMessages,
       getSessionMessages,
+      importSessions,
       ingest,
     }
 
@@ -251,6 +258,82 @@ describe('useChatSyncStore', async () => {
     MockBroadcastChannel.reset()
   })
 
+  // https://github.com/moeru-ai/airi/issues/2087
+  it('issue #2087: imports settings-window chats through the authority store', async () => {
+    // ROOT CAUSE:
+    //
+    // The settings window previously never joined the desktop chat channel.
+    // Its import updated only that renderer's Pinia store and IndexedDB, so
+    // the authority kept broadcasting its stale session snapshot until an
+    // app restart hydrated the persisted import.
+    const importedMeta = {
+      sessionId: 'imported-session',
+      userId: 'local',
+      characterId: 'default',
+      createdAt: 1,
+      updatedAt: 2,
+    }
+    const payload: ChatSessionsExport = {
+      format: 'chat-sessions-index:v1',
+      index: {
+        userId: 'local',
+        characters: {
+          default: {
+            activeSessionId: 'imported-session',
+            sessions: {
+              'imported-session': importedMeta,
+            },
+          },
+        },
+      },
+      sessions: {
+        'imported-session': {
+          meta: importedMeta,
+          messages: [{ id: 'message-1', role: 'user', content: 'Imported chat' }],
+        },
+      },
+    }
+    mockState.importSessions.mockImplementationOnce(async (imported) => {
+      mockState.activeSessionId.value = imported.index.characters.default?.activeSessionId ?? ''
+      mockState.sessionMetas.value = Object.fromEntries(
+        Object.values(imported.index.characters).flatMap(character => Object.entries(character.sessions)),
+      )
+      mockState.sessionMessages.value = Object.fromEntries(
+        Object.entries(imported.sessions).map(([sessionId, session]) => [
+          sessionId,
+          session.messages.map(message => ({
+            id: message.id,
+            role: message.role,
+            content: typeof message.content === 'string' ? message.content : '',
+          })),
+        ]),
+      )
+    })
+    const authorityStore = useChatSyncStore()
+    authorityStore.initialize('authority')
+
+    setActivePinia(createPinia())
+    const settingsStore = useChatSyncStore()
+    settingsStore.initialize('client')
+
+    await settingsStore.requestImportSessions(payload)
+
+    expect(mockState.importSessions).toHaveBeenCalledTimes(1)
+    expect(mockState.importSessions).toHaveBeenCalledWith(payload)
+    await vi.waitFor(() => {
+      expect(postedMessagesOfType('session-snapshot')).toContainEqual(expect.objectContaining({
+        snapshot: expect.objectContaining({
+          sessionMetas: {
+            'imported-session': importedMeta,
+          },
+        }),
+      }))
+    })
+
+    settingsStore.dispose()
+    authorityStore.dispose()
+  })
+
   it('stores command ingest errors in authority session history', async () => {
     vi.spyOn(console, 'error').mockImplementation(() => {})
     const store = useChatSyncStore()
diff --git a/apps/stage-tamagotchi/src/renderer/stores/chat-sync.ts b/apps/stage-tamagotchi/src/renderer/stores/chat-sync.ts
index dade97294..a3c1f2738 100644
--- a/apps/stage-tamagotchi/src/renderer/stores/chat-sync.ts
+++ b/apps/stage-tamagotchi/src/renderer/stores/chat-sync.ts
@@ -1,7 +1,7 @@
 import type { WebSocketEventInputs } from '@proj-airi/server-sdk'
 import type { ToolCallRerunPayload } from '@proj-airi/stage-ui/stores/tool-call-rerun'
 import type { ChatHistoryItem, StreamingAssistantMessage } from '@proj-airi/stage-ui/types/chat'
-import type { ChatSessionMeta } from '@proj-airi/stage-ui/types/chat-session'
+import type { ChatSessionMeta, ChatSessionsExport } from '@proj-airi/stage-ui/types/chat-session'
 import type { ChatProvider } from '@xsai-ext/providers/utils'
 
 import { errorMessageFrom } from '@moeru/std'
@@ -22,7 +22,7 @@ import { imageJournalTools } from './tools/builtin/image-journal'
 import { weatherTools } from './tools/builtin/weather'
 import { widgetsTools } from './tools/builtin/widgets'
 
-type ChatSyncMode = 'inactive' | 'authority' | 'follower'
+type ChatSyncMode = 'inactive' | 'authority' | 'follower' | 'client'
 type ToolsetId = 'widgets' | 'artistry'
 
 interface AttachmentPayload {
@@ -88,6 +88,7 @@ type ChatSyncMessage
     | ChatCommandMessage<'tool-call-rerun', ToolCallRerunPayload<ToolsetId>>
     | ChatCommandMessage<'cleanup', { sessionId?: string }>
     | ChatCommandMessage<'delete-message', { sessionId?: string, messageId?: string, index?: number }>
+    | ChatCommandMessage<'import-sessions', ChatSessionsExport>
     | ({ type: 'response', requestId: string, authorityId: string } & ChatResponsePayload)
 
 interface PendingRequest {
@@ -467,6 +468,9 @@ export const useChatSyncStore = defineStore('stage-tamagotchi:chat-sync', () =>
         case 'delete-message':
           executeDeleteMessage(message.payload)
           break
+        case 'import-sessions':
+          await chatSession.importSessions(message.payload)
+          break
       }
 
       respond({ ok: true })
@@ -703,6 +707,22 @@ export const useChatSyncStore = defineStore('stage-tamagotchi:chat-sync', () =>
     })
   }
 
+  /** Imports persisted chat sessions through the authority so every chat window receives the resulting snapshot. */
+  async function requestImportSessions(payload: ChatSessionsExport) {
+    if (mode.value === 'authority') {
+      await chatSession.importSessions(payload)
+      return
+    }
+
+    return await dispatch<void>({
+      type: 'command',
+      requestId: createRequestId(),
+      senderId: instanceId,
+      command: 'import-sessions',
+      payload,
+    })
+  }
+
   function dispose() {
     stopWatchers()
     clearHeartbeat()
@@ -723,5 +743,6 @@ export const useChatSyncStore = defineStore('stage-tamagotchi:chat-sync', () =>
     requestToolCallRerun,
     requestCleanup,
     requestDeleteMessage,
+    requestImportSessions,
   }
 })
diff --git a/packages/stage-pages/src/pages/settings/data/components/chats-section.vue b/packages/stage-pages/src/pages/settings/data/components/chats-section.vue
index 213319733..8a67a582d 100644
--- a/packages/stage-pages/src/pages/settings/data/components/chats-section.vue
+++ b/packages/stage-pages/src/pages/settings/data/components/chats-section.vue
@@ -1,4 +1,6 @@
 <script setup lang="ts">
+import type { ChatSessionsExport } from '@proj-airi/stage-ui/types/chat-session'
+
 import type { DataSettingsStatusEmits } from '../status'
 
 import { useAnalytics } from '@proj-airi/stage-ui/composables'
@@ -9,6 +11,12 @@ import { useI18n } from 'vue-i18n'
 
 import { createDataSettingsStatusHelpers } from '../status'
 
+interface Props {
+  /** Mirrors a validated desktop import into the chat authority renderer. */
+  syncImportedChats?: (payload: ChatSessionsExport) => Promise<void>
+}
+
+const props = defineProps<Props>()
 const emit = defineEmits<DataSettingsStatusEmits>()
 const { t } = useI18n()
 const { trackDataAction } = useAnalytics()
@@ -62,7 +70,8 @@ async function handleImport(event: Event) {
   try {
     const raw = await file.text()
     const parsed = JSON.parse(raw) as Record<string, unknown>
-    await importChatSessions(parsed)
+    const imported = await importChatSessions(parsed)
+    await props.syncImportedChats?.(imported)
     importError.value = ''
     trackDataAction({ action: 'chats_imported' })
     emitStatus(t('settings.pages.data.status.imported'))
diff --git a/packages/stage-ui/src/composables/use-data-maintenance.ts b/packages/stage-ui/src/composables/use-data-maintenance.ts
index 760a993e1..184ecd80b 100644
--- a/packages/stage-ui/src/composables/use-data-maintenance.ts
+++ b/packages/stage-ui/src/composables/use-data-maintenance.ts
@@ -84,6 +84,7 @@ export function useDataMaintenance() {
     if (!isChatSessionsPayload(payload))
       throw new Error('Invalid chat session export format')
     await chatStore.importSessions(payload)
+    return payload
   }
 
   async function resetSettingsState() {