diff --git a/apps/stage-tamagotchi/src/renderer/App.vue b/apps/stage-tamagotchi/src/renderer/App.vue
index 609722eb0..d0763aad2 100644
--- a/apps/stage-tamagotchi/src/renderer/App.vue
+++ b/apps/stage-tamagotchi/src/renderer/App.vue
@@ -2,10 +2,11 @@
 import { defineInvoke, defineInvokeHandler } from '@moeru/eventa'
 import { useDisplayModelsStore } from '@proj-airi/stage-ui/stores/display-models'
 import { useOnboardingStore } from '@proj-airi/stage-ui/stores/onboarding'
+import { installChatContextBridge } from '@proj-airi/stage-ui/stores/plugins/chat-context-bridge'
 import { useSettings } from '@proj-airi/stage-ui/stores/settings'
 import { useTheme } from '@proj-airi/ui'
 import { storeToRefs } from 'pinia'
-import { onMounted, watch } from 'vue'
+import { onMounted, onUnmounted, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { RouterView, useRoute, useRouter } from 'vue-router'
 
@@ -21,6 +22,7 @@ const { language, themeColorsHue, themeColorsHueDynamic } = storeToRefs(settings
 const onboardingStore = useOnboardingStore()
 const router = useRouter()
 const route = useRoute()
+let disposeChatBridge: (() => void) | undefined
 
 watch(language, () => {
   i18n.locale.value = language.value
@@ -38,6 +40,9 @@ onMounted(async () => {
   await displayModelsStore.loadDisplayModelsFromIndexedDB()
   await settingsStore.initializeStageModel()
 
+  const bridge = installChatContextBridge()
+  disposeChatBridge = bridge.dispose
+
   const context = useElectronEventaContext()
   const startTrackingCursorPoint = defineInvoke(context.value, electronStartTrackMousePosition)
   await startTrackingCursorPoint()
@@ -53,6 +58,8 @@ watch(themeColorsHue, () => {
 watch(themeColorsHueDynamic, () => {
   document.documentElement.classList.toggle('dynamic-hue', themeColorsHueDynamic.value)
 }, { immediate: true })
+
+onUnmounted(() => disposeChatBridge?.())
 </script>
 
 <template>
diff --git a/apps/stage-web/src/App.vue b/apps/stage-web/src/App.vue
index 22190aff0..fe006a425 100644
--- a/apps/stage-web/src/App.vue
+++ b/apps/stage-web/src/App.vue
@@ -1,8 +1,8 @@
 <script setup lang="ts">
 import { OnboardingDialog, ToasterRoot } from '@proj-airi/stage-ui/components'
 import { useDisplayModelsStore } from '@proj-airi/stage-ui/stores/display-models'
-import { useModsChannelServerStore } from '@proj-airi/stage-ui/stores/mods/api/channel-server'
 import { useOnboardingStore } from '@proj-airi/stage-ui/stores/onboarding'
+import { installChatContextBridge } from '@proj-airi/stage-ui/stores/plugins/chat-context-bridge'
 import { useSettings } from '@proj-airi/stage-ui/stores/settings'
 import { useTheme } from '@proj-airi/ui'
 import { StageTransitionGroup } from '@proj-airi/ui-transitions'
@@ -24,7 +24,7 @@ const settings = storeToRefs(settingsStore)
 const onboardingStore = useOnboardingStore()
 const { shouldShowSetup } = storeToRefs(onboardingStore)
 const { isDark } = useTheme()
-const channelServerStore = useModsChannelServerStore()
+let disposeChatBridge: (() => void) | undefined
 
 const primaryColor = computed(() => {
   return isDark.value
@@ -63,14 +63,15 @@ watch(settings.themeColorsHueDynamic, () => {
 // Initialize first-time setup check when app mounts
 onMounted(async () => {
   onboardingStore.initializeSetupCheck()
-  channelServerStore.initialize()
+  const bridge = installChatContextBridge()
+  disposeChatBridge = bridge.dispose
 
   await displayModelsStore.loadDisplayModelsFromIndexedDB()
   await settingsStore.initializeStageModel()
 })
 
 onUnmounted(() => {
-  channelServerStore.dispose()
+  disposeChatBridge?.()
 })
 
 // Handle first-time setup events
diff --git a/packages/server-shared/src/types/websocket/events.ts b/packages/server-shared/src/types/websocket/events.ts
index bfbad68cc..1ceca2870 100644
--- a/packages/server-shared/src/types/websocket/events.ts
+++ b/packages/server-shared/src/types/websocket/events.ts
@@ -15,6 +15,34 @@ interface InputSource {
   discord: Discord
 }
 
+export type ContextSource =
+  | 'text'
+  | 'stt'
+  | 'vision'
+  | 'llm'
+  | 'server-channel'
+  | 'plugin'
+  | 'system'
+
+export interface ContextMessage<Payload = unknown, Meta = Record<string, unknown>> {
+  /**
+   * Session identifier so UIs can group conversations from multiple windows/devices.
+   */
+  sessionId: string
+  /**
+   * Unix timestamp in milliseconds.
+   */
+  ts: number
+  role: 'user' | 'assistant' | 'system' | 'error'
+  source: ContextSource
+  /**
+   * The actual payload being carried. Keep this generic so different inputs (text, stt, vision)
+   * can share the same envelope.
+   */
+  payload: Payload
+  meta?: Meta
+}
+
 export interface WebSocketBaseEvent<T, D> {
   type: T
   data: D
@@ -60,6 +88,7 @@ export interface WebSocketEvents<C = undefined> {
     audio: ArrayBuffer
   } & Partial<WithInputSource<'browser' | 'discord'>>
   'vscode:context': C
+  'context:update': ContextMessage
 }
 
 export type WebSocketEvent<C = undefined> = {
diff --git a/packages/stage-ui/src/stores/chat.test.ts b/packages/stage-ui/src/stores/chat.test.ts
new file mode 100644
index 000000000..73ed449fe
--- /dev/null
+++ b/packages/stage-ui/src/stores/chat.test.ts
@@ -0,0 +1,121 @@
+import type { ContextMessage } from '@proj-airi/server-sdk'
+
+import type { ContextPayload } from './chat'
+
+import { createPinia, setActivePinia } from 'pinia'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+import { ref } from 'vue'
+
+import { useChatStore } from './chat'
+import { installChatContextBridge } from './plugins/chat-context-bridge'
+
+const mockSendContextUpdate = vi.fn()
+const mockInitialize = vi.fn().mockResolvedValue(undefined)
+let contextUpdateHandler: ((event: { type: 'context:update', data: ContextMessage }) => void | Promise<void>) | null = null
+let broadcastPosts: ContextMessage[] = []
+let bridge: { dispose: () => void } | null = null
+
+const localStorageMap = new Map<string, unknown>()
+
+vi.mock('@vueuse/core', () => {
+  return {
+    useLocalStorage: <T>(key: string, defaultValue: T) => {
+      if (!localStorageMap.has(key))
+        localStorageMap.set(key, ref(defaultValue))
+
+      return localStorageMap.get(key) as ReturnType<typeof ref<T>>
+    },
+    useBroadcastChannel: () => {
+      const data = ref<ContextMessage | undefined>()
+      const post = (value: ContextMessage) => {
+        broadcastPosts.push(value)
+        data.value = value
+      }
+
+      return { data, post }
+    },
+  }
+})
+
+vi.mock('./llm', () => ({
+  useLLM: () => ({
+    stream: vi.fn(),
+    discoverToolsCompatibility: vi.fn(),
+  }),
+}))
+
+vi.mock('./modules', () => ({
+  useAiriCardStore: () => ({
+    systemPrompt: ref(''),
+  }),
+}))
+
+vi.mock('./mods/api/channel-server', () => ({
+  useModsChannelServerStore: () => ({
+    connected: ref(true),
+    initialize: mockInitialize,
+    onContextUpdate: (cb: typeof contextUpdateHandler) => {
+      contextUpdateHandler = cb
+      return () => { contextUpdateHandler = null }
+    },
+    sendContextUpdate: mockSendContextUpdate,
+  }),
+}))
+
+describe('chat store', () => {
+  beforeEach(() => {
+    setActivePinia(createPinia())
+    broadcastPosts = []
+    localStorageMap.clear()
+    mockSendContextUpdate.mockClear()
+    mockInitialize.mockClear()
+    contextUpdateHandler = null
+    bridge = null
+  })
+
+  afterEach(() => {
+    bridge?.dispose()
+    bridge = null
+    vi.clearAllMocks()
+  })
+
+  it('ingests assistant context updates from the channel server', async () => {
+    const store = useChatStore()
+    bridge = installChatContextBridge()
+    expect(mockInitialize).toHaveBeenCalled()
+    expect(contextUpdateHandler).toBeTruthy()
+
+    const envelope: ContextMessage = {
+      sessionId: 'session-ctx',
+      ts: 123,
+      role: 'assistant',
+      source: 'llm',
+      payload: { content: 'hello from server' },
+    }
+
+    await contextUpdateHandler?.({ type: 'context:update', data: envelope })
+
+    store.setActiveSession('session-ctx')
+    const last = store.messages.at(-1)
+    expect(last?.role).toBe('assistant')
+    expect(last?.content).toBe('hello from server')
+  })
+
+  it('publishes local context updates through the shared channel server store', () => {
+    const store = useChatStore()
+    bridge = installChatContextBridge()
+
+    const envelope: ContextMessage = {
+      sessionId: 'session-local',
+      ts: 456,
+      role: 'assistant',
+      source: 'system',
+      payload: { content: 'local broadcast' },
+    }
+
+    store.publishContextMessage(envelope as ContextMessage<ContextPayload, Record<string, unknown>>, 'local')
+
+    expect(mockSendContextUpdate).toHaveBeenCalledWith(envelope)
+    expect(broadcastPosts).toContain(envelope)
+  })
+})
diff --git a/packages/stage-ui/src/stores/chat.ts b/packages/stage-ui/src/stores/chat.ts
index bde9caa16..e96bed840 100644
--- a/packages/stage-ui/src/stores/chat.ts
+++ b/packages/stage-ui/src/stores/chat.ts
@@ -1,3 +1,4 @@
+import type { ContextMessage, ContextSource } from '@proj-airi/server-sdk'
 import type { ChatProvider } from '@xsai-ext/shared-providers'
 import type { CommonContentPart, Message, SystemMessage } from '@xsai/shared-chat'
 
@@ -6,7 +7,7 @@ import type { ChatAssistantMessage, ChatMessage, ChatSlices } from '../types/cha
 
 import { useLocalStorage } from '@vueuse/core'
 import { defineStore, storeToRefs } from 'pinia'
-import { ref, toRaw, watch } from 'vue'
+import { computed, ref, toRaw, watch } from 'vue'
 
 import { useLlmmarkerParser } from '../composables/llmmarkerParser'
 import { useLLM } from '../stores/llm'
@@ -19,12 +20,36 @@ export interface ErrorMessage {
   content: string
 }
 
+interface MessageContext {
+  sessionId: string
+  source: ContextSource
+  ts: number
+  meta?: Record<string, unknown>
+}
+
+type ChatEntry = (ChatMessage | ErrorMessage) & { context?: MessageContext }
+
+export interface ContextPayload {
+  content?: unknown
+  slices?: ChatSlices[]
+  tool_results?: ChatAssistantMessage['tool_results']
+  text?: string
+}
+
+const CHAT_STORAGE_KEY = 'chat/messages/v2'
+const ACTIVE_SESSION_STORAGE_KEY = 'chat/active-session'
+export const CONTEXT_CHANNEL_NAME = 'airi-context-update'
+
 export const useChatStore = defineStore('chat', () => {
   const { stream, discoverToolsCompatibility } = useLLM()
   const { systemPrompt } = storeToRefs(useAiriCardStore())
 
+  const activeSessionId = useLocalStorage<string>(ACTIVE_SESSION_STORAGE_KEY, 'default')
+  const sessionMessages = useLocalStorage<Record<string, ChatEntry[]>>(CHAT_STORAGE_KEY, {})
+
   const sending = ref(false)
 
+  // ----- Hooks (UI callbacks) -----
   const onBeforeMessageComposedHooks = ref<Array<(message: string) => Promise<void>>>([])
   const onAfterMessageComposedHooks = ref<Array<(message: string) => Promise<void>>>([])
   const onBeforeSendHooks = ref<Array<(message: string) => Promise<void>>>([])
@@ -33,6 +58,7 @@ export const useChatStore = defineStore('chat', () => {
   const onTokenSpecialHooks = ref<Array<(special: string) => Promise<void>>>([])
   const onStreamEndHooks = ref<Array<() => Promise<void>>>([])
   const onAssistantResponseEndHooks = ref<Array<(message: string) => Promise<void>>>([])
+  const onContextPublishHooks = ref<Array<(envelope: ContextMessage<ContextPayload>, origin: 'local' | 'ws' | 'broadcast') => Promise<void> | void>>([])
 
   function onBeforeMessageComposed(cb: (message: string) => Promise<void>) {
     onBeforeMessageComposedHooks.value.push(cb)
@@ -66,6 +92,14 @@ export const useChatStore = defineStore('chat', () => {
     onAssistantResponseEndHooks.value.push(cb)
   }
 
+  function onContextPublish(cb: (envelope: ContextMessage<ContextPayload>, origin: 'local' | 'ws' | 'broadcast') => Promise<void> | void) {
+    onContextPublishHooks.value.push(cb)
+
+    return () => {
+      onContextPublishHooks.value = onContextPublishHooks.value.filter(hook => hook !== cb)
+    }
+  }
+
   function clearHooks() {
     onBeforeMessageComposedHooks.value = []
     onAfterMessageComposedHooks.value = []
@@ -75,8 +109,10 @@ export const useChatStore = defineStore('chat', () => {
     onTokenSpecialHooks.value = []
     onStreamEndHooks.value = []
     onAssistantResponseEndHooks.value = []
+    onContextPublishHooks.value = []
   }
 
+  // ----- Session state helpers -----
   // I know this nu uh, better than loading all language on rehypeShiki
   const codeBlockSystemPrompt = '- For any programming code block, always specify the programming language that supported on @shikijs/rehype on the rendered markdown, eg. ```python ... ```\n'
   const mathSyntaxSystemPrompt = '- For any math equation, use LaTeX format, eg: $ x^3 $, always escape dollar sign outside math equation\n'
@@ -89,20 +125,122 @@ export const useChatStore = defineStore('chat', () => {
     } satisfies SystemMessage
   }
 
-  const messages = useLocalStorage<Array<ChatMessage | ErrorMessage>>('chat/messages', [generateInitialMessage()])
+  function ensureSession(sessionId: string) {
+    if (!sessionMessages.value[sessionId] || sessionMessages.value[sessionId].length === 0) {
+      sessionMessages.value[sessionId] = [{
+        ...generateInitialMessage(),
+        context: {
+          sessionId,
+          source: 'system',
+          ts: Date.now(),
+        },
+      }]
+    }
+  }
 
-  function cleanupMessages() {
-    messages.value = [generateInitialMessage()]
+  ensureSession(activeSessionId.value)
+
+  const messages = computed<ChatEntry[]>({
+    get: () => {
+      ensureSession(activeSessionId.value)
+      return sessionMessages.value[activeSessionId.value]
+    },
+    set: (value) => {
+      sessionMessages.value[activeSessionId.value] = value
+    },
+  })
+
+  function setActiveSession(sessionId: string) {
+    activeSessionId.value = sessionId
+    ensureSession(sessionId)
+  }
+
+  function cleanupMessages(sessionId = activeSessionId.value) {
+    sessionMessages.value[sessionId] = [{
+      ...generateInitialMessage(),
+      context: {
+        sessionId,
+        source: 'system',
+        ts: Date.now(),
+      },
+    }]
   }
 
   watch(systemPrompt, () => {
-    if (messages.value.length > 0 && messages.value[0].role === 'system') {
-      messages.value[0] = generateInitialMessage()
+    for (const [sessionId, history] of Object.entries(sessionMessages.value)) {
+      if (history.length > 0 && history[0].role === 'system') {
+        sessionMessages.value[sessionId][0] = {
+          ...generateInitialMessage(),
+          context: {
+            sessionId,
+            source: 'system',
+            ts: Date.now(),
+          },
+        }
+      }
     }
-  }, {
-    immediate: true,
-  })
+  }, { immediate: true })
 
+  // ----- Context bridge (WS + BroadcastChannel) -----
+  function normalizePayload(payload?: ContextPayload) {
+    const baseContent = payload?.content ?? payload?.text ?? ''
+    const normalizedContent = typeof baseContent === 'string' || Array.isArray(baseContent)
+      ? baseContent
+      : JSON.stringify(baseContent)
+
+    return {
+      content: normalizedContent,
+      slices: payload?.slices ?? [],
+      tool_results: payload?.tool_results ?? [],
+    }
+  }
+
+  function ingestContextMessage(envelope: ContextMessage<ContextPayload>, origin: 'local' | 'ws' | 'broadcast' = 'local') {
+    ensureSession(envelope.sessionId)
+
+    const { content, slices, tool_results } = normalizePayload(envelope.payload)
+
+    const context: MessageContext = {
+      sessionId: envelope.sessionId,
+      source: envelope.source,
+      ts: envelope.ts,
+      meta: envelope.meta,
+    }
+
+    const nextHistory = sessionMessages.value[envelope.sessionId]
+
+    if (envelope.role === 'assistant') {
+      nextHistory.push({
+        role: 'assistant',
+        content,
+        slices,
+        tool_results,
+        context,
+      })
+    }
+    else if (envelope.role === 'error') {
+      nextHistory.push({
+        role: 'error',
+        content: typeof content === 'string' ? content : JSON.stringify(content),
+        context,
+      })
+    }
+    else {
+      nextHistory.push({
+        role: envelope.role,
+        content,
+        context,
+      } as ChatEntry)
+    }
+
+  }
+
+  function publishContextMessage(envelope: ContextMessage<ContextPayload>, origin: 'local' | 'ws' | 'broadcast' = 'local') {
+    for (const hook of onContextPublishHooks.value)
+      void hook(envelope, origin)
+  }
+
+  // ----- Send flow (user -> LLM -> assistant) -----
   const streamingMessage = ref<ChatAssistantMessage>({ role: 'assistant', content: '', slices: [], tool_results: [] })
 
   async function send(
@@ -141,7 +279,16 @@ export const useChatStore = defineStore('chat', () => {
 
       const finalContent = contentParts.length > 1 ? contentParts : sendingMessage
 
-      messages.value.push({ role: 'user', content: finalContent })
+      const userContext: MessageContext = { sessionId: activeSessionId.value, source: 'text', ts: Date.now() }
+      messages.value.push({ role: 'user', content: finalContent, context: userContext })
+
+      publishContextMessage({
+        sessionId: userContext.sessionId,
+        ts: userContext.ts,
+        role: 'user',
+        source: userContext.source,
+        payload: { content: finalContent },
+      }, 'local')
 
       const parser = useLlmmarkerParser({
         onLiteral: async (literal) => {
@@ -187,13 +334,19 @@ export const useChatStore = defineStore('chat', () => {
       })
 
       streamingMessage.value = { role: 'assistant', content: '', slices: [], tool_results: [] }
+
       const newMessages = messages.value.map((msg) => {
-        if (msg.role === 'assistant') {
-          const { slices: _, ...rest } = msg // exclude slices
-          rest.tool_results = toRaw(rest.tool_results)
-          return toRaw(rest)
+        const { context: _context, ...withoutContext } = msg
+        const rawMessage = toRaw(withoutContext)
+        if (rawMessage.role === 'assistant') {
+          const { slices: _, tool_results, ...rest } = rawMessage as ChatAssistantMessage
+          return {
+            ...toRaw(rest),
+            tool_results: toRaw(tool_results),
+          }
         }
-        return toRaw(msg)
+
+        return rawMessage
       })
 
       for (const hook of onAfterMessageComposedHooks.value) {
@@ -241,8 +394,32 @@ export const useChatStore = defineStore('chat', () => {
       await parser.end()
 
       // Add the completed message to the history only if it has content
-      if (streamingMessage.value.slices.length > 0)
-        messages.value.push(toRaw(streamingMessage.value))
+      if (streamingMessage.value.slices.length > 0) {
+        const assistantContext: MessageContext = {
+          sessionId: activeSessionId.value,
+          source: 'llm',
+          ts: Date.now(),
+        }
+
+        const assistantMessage: ChatEntry = {
+          ...(toRaw(streamingMessage.value) as ChatAssistantMessage),
+          context: assistantContext,
+        }
+
+        messages.value.push(assistantMessage)
+
+        publishContextMessage({
+          sessionId: assistantContext.sessionId,
+          ts: assistantContext.ts,
+          role: 'assistant',
+          source: assistantContext.source,
+          payload: {
+            content: assistantMessage.content,
+            slices: assistantMessage.slices,
+            tool_results: assistantMessage.tool_results,
+          },
+        }, 'local')
+      }
 
       // Reset the streaming message for the next turn
       streamingMessage.value = { role: 'assistant', content: '', slices: [], tool_results: [] }
@@ -278,12 +455,16 @@ export const useChatStore = defineStore('chat', () => {
 
   return {
     sending,
+    activeSessionId,
     messages,
     streamingMessage,
 
     discoverToolsCompatibility,
 
     send,
+    setActiveSession,
+    ingestContextMessage,
+    publishContextMessage,
     cleanupMessages,
     clearHooks,
 
@@ -295,5 +476,6 @@ export const useChatStore = defineStore('chat', () => {
     onTokenSpecial,
     onStreamEnd,
     onAssistantResponseEnd,
+    onContextPublish,
   }
 })
diff --git a/packages/stage-ui/src/stores/mods/api/channel-server.ts b/packages/stage-ui/src/stores/mods/api/channel-server.ts
index cfa199df1..6946b5648 100644
--- a/packages/stage-ui/src/stores/mods/api/channel-server.ts
+++ b/packages/stage-ui/src/stores/mods/api/channel-server.ts
@@ -1,4 +1,4 @@
-import type { WebSocketEvent } from '@proj-airi/server-sdk'
+import type { ContextMessage, WebSocketBaseEvent, WebSocketEvent, WebSocketEvents } from '@proj-airi/server-sdk'
 
 import { Client } from '@proj-airi/server-sdk'
 import { defineStore } from 'pinia'
@@ -7,35 +7,67 @@ import { ref } from 'vue'
 export const useModsChannelServerStore = defineStore('mods:channels:proj-airi:server', () => {
   const connected = ref(false)
   const client = ref<Client>()
+  const initializing = ref<Promise<void> | null>(null)
 
   const pendingSend = ref<Array<WebSocketEvent>>([])
 
-  function initialize(options?: { token?: string }) {
-    return new Promise<void>((resolve, reject) => {
+  function initialize(options?: { token?: string, possibleEvents?: Array<keyof WebSocketEvents> }) {
+    if (connected.value && client.value)
+      return Promise.resolve()
+    if (initializing.value)
+      return initializing.value
+
+    const possibleEvents = Array.from(new Set<keyof WebSocketEvents>([
+      'ui:configure',
+      'context:update',
+      ...(options?.possibleEvents ?? []),
+    ]))
+
+    initializing.value = new Promise<void>((resolve, reject) => {
       client.value = new Client({
         name: 'proj-airi:ui:stage',
         url: import.meta.env.VITE_AIRI_WS_URL || 'ws://localhost:6121/ws',
         token: options?.token,
-        possibleEvents: [
-          'ui:configure',
-          'module:authenticated',
-        ],
+        possibleEvents,
         onError: (error) => {
+          client.value = undefined
+          connected.value = false
+          initializing.value = null
           reject(error)
         },
+        onClose: () => {
+          connected.value = false
+          initializing.value = null
+        },
       })
 
       client.value.onEvent('module:authenticated', (event) => {
         if (event.data.authenticated) {
           connected.value = true
           flush()
+          initializeListeners()
           resolve()
+          return
         }
+
+        connected.value = false
       })
     })
+
+    return initializing.value
+  }
+
+  function initializeListeners() {
+    if (!client.value)
+      // No-op for now; keep placeholder for future shared listeners.
+      // eslint-disable-next-line no-useless-return
+      return
   }
 
   function send(data: WebSocketEvent) {
+    if (!client.value && !initializing.value)
+      void initialize()
+
     if (client.value && connected.value) {
       client.value.send(data)
     }
@@ -54,12 +86,31 @@ export const useModsChannelServerStore = defineStore('mods:channels:proj-airi:se
     }
   }
 
+  function onContextUpdate(callback: (event: WebSocketBaseEvent<'context:update', ContextMessage>) => void | Promise<void>) {
+    if (!client.value && !initializing.value)
+      void initialize()
+
+    client.value?.onEvent('context:update', callback as any)
+
+    return () => {
+      client.value?.offEvent('context:update', callback as any)
+    }
+  }
+
+  function sendContextUpdate(message: ContextMessage) {
+    send({
+      type: 'context:update',
+      data: message,
+    })
+  }
+
   function dispose() {
     flush()
 
     client.value?.close()
     connected.value = false
     client.value = undefined
+    initializing.value = null
   }
 
   return {
@@ -67,6 +118,8 @@ export const useModsChannelServerStore = defineStore('mods:channels:proj-airi:se
 
     initialize,
     send,
+    sendContextUpdate,
+    onContextUpdate,
     dispose,
   }
 })
diff --git a/packages/stage-ui/src/stores/plugins/chat-context-bridge.ts b/packages/stage-ui/src/stores/plugins/chat-context-bridge.ts
new file mode 100644
index 000000000..d08f782d6
--- /dev/null
+++ b/packages/stage-ui/src/stores/plugins/chat-context-bridge.ts
@@ -0,0 +1,55 @@
+import type { ContextMessage } from '@proj-airi/server-sdk'
+
+import { useBroadcastChannel } from '@vueuse/core'
+import { watch } from 'vue'
+
+import type { ContextPayload } from '../chat'
+import { CONTEXT_CHANNEL_NAME, useChatStore } from '../chat'
+import { useModsChannelServerStore } from '../mods/api/channel-server'
+
+let installed = false
+
+export function installChatContextBridge() {
+  if (installed) {
+    return {
+      dispose: () => {},
+    }
+  }
+
+  const chatStore = useChatStore()
+  const modsChannelServer = useModsChannelServerStore()
+  const { post: broadcastContext, data: incomingContext } = useBroadcastChannel<ContextMessage<ContextPayload>, ContextMessage<ContextPayload>>({
+    name: CONTEXT_CHANNEL_NAME,
+  })
+
+  const stopIncomingWatch = watch(incomingContext, (event) => {
+    if (event)
+      chatStore.ingestContextMessage(event, 'broadcast')
+  })
+
+  const offPublish = chatStore.onContextPublish((envelope, origin) => {
+    if (origin !== 'broadcast')
+      broadcastContext(envelope)
+
+    if (origin === 'local')
+      modsChannelServer.sendContextUpdate(envelope)
+  })
+
+  modsChannelServer.initialize({ possibleEvents: ['context:update'] }).catch(error => console.error('Context bridge init error:', error))
+  const offWs = modsChannelServer.onContextUpdate((event) => {
+    const envelope = event.data as ContextMessage<ContextPayload, Record<string, unknown>>
+    chatStore.ingestContextMessage(envelope, 'ws')
+    broadcastContext(envelope)
+  })
+
+  installed = true
+
+  return {
+    dispose: () => {
+      stopIncomingWatch()
+      offPublish()
+      offWs?.()
+      installed = false
+    },
+  }
+}