diff --git a/apps/stage-tamagotchi/src/renderer/components/InteractiveArea.vue b/apps/stage-tamagotchi/src/renderer/components/InteractiveArea.vue
index 5272ee28c..53954857e 100644
--- a/apps/stage-tamagotchi/src/renderer/components/InteractiveArea.vue
+++ b/apps/stage-tamagotchi/src/renderer/components/InteractiveArea.vue
@@ -158,6 +158,13 @@ const historyMessages = computed(() => messages.value as unknown as ChatHistoryI
 async function handleDeleteMessage(index: number) {
   await chatSyncStore.requestDeleteMessage({ index })
 }
+
+async function handleRetryMessage(index: number) {
+  await chatSyncStore.requestRetry({
+    sessionId: chatSession.activeSessionId,
+    index,
+  })
+}
 </script>
 
 <template>
@@ -168,6 +175,7 @@ async function handleDeleteMessage(index: number) {
         :sending="sending"
         :streaming-message="streamingMessage"
         @delete-message="handleDeleteMessage($event.index)"
+        @retry-message="handleRetryMessage($event.index)"
       />
     </div>
     <div
@@ -210,9 +218,13 @@ async function handleDeleteMessage(index: number) {
             side="top"
             :side-offset="8"
             :class="[
-              'z-50 min-w-[180px] rounded-lg border border-primary-200 bg-white p-1 shadow-xl',
-              'dark:border-primary-700 dark:bg-neutral-800',
+              'z-50 min-w-[180px] rounded-xl p-1 shadow',
+              'bg-white dark:bg-neutral-800',
               'flex flex-col gap-1',
+              'data-[side=top]:animate-slideDownAndFade',
+              'data-[side=left]:animate-none',
+              'data-[side=bottom]:animate-none',
+              'data-[side=right]:animate-none',
             ]"
           >
             <DropdownMenuItem
@@ -220,7 +232,7 @@ async function handleDeleteMessage(index: number) {
               :key="mode"
               :class="[
                 'w-full flex cursor-pointer items-center rounded-md px-3 py-2 text-left text-xs outline-none transition-colors',
-                'hover:bg-primary-100 dark:hover:bg-primary-900/50',
+                'hover:bg-primary-50 dark:hover:bg-primary-900/20',
                 sendMode === mode ? 'bg-primary-50 text-primary-600 font-semibold dark:bg-primary-900/20 dark:text-primary-300' : 'text-neutral-500',
               ]"
               @select="sendMode = mode"
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 c4cfc1969..4132e16f5 100644
--- a/apps/stage-tamagotchi/src/renderer/stores/chat-sync.test.ts
+++ b/apps/stage-tamagotchi/src/renderer/stores/chat-sync.test.ts
@@ -66,6 +66,7 @@ interface MockState {
   activeSessionId: Ref<string>
   sessionMessages: Ref<Record<string, Array<{ role: string, content: string }>>>
   sessionMetas: Ref<Record<string, unknown>>
+  applyRemoteSnapshot: ReturnType<typeof vi.fn>
   setSessionMessages: ReturnType<typeof vi.fn>
   getSessionMessages: ReturnType<typeof vi.fn>
   ingest: ReturnType<typeof vi.fn>
@@ -78,7 +79,7 @@ vi.mock('@proj-airi/stage-ui/stores/chat/session-store', () => ({
     activeSessionId: mockState.activeSessionId,
     sessionMessages: mockState.sessionMessages,
     sessionMetas: mockState.sessionMetas,
-    applyRemoteSnapshot: vi.fn(),
+    applyRemoteSnapshot: mockState.applyRemoteSnapshot,
     getSnapshot: vi.fn(() => ({
       activeSessionId: mockState.activeSessionId.value,
       sessionMessages: mockState.sessionMessages.value,
@@ -147,6 +148,15 @@ describe('useChatSyncStore authority ingest failures', async () => {
       'session-1': [{ role: 'system', content: 'init' }],
     })
     const sessionMetas = ref<Record<string, unknown>>({})
+    const applyRemoteSnapshot = vi.fn((snapshot: {
+      activeSessionId: string
+      sessionMessages: Record<string, Array<{ role: string, content: string }>>
+      sessionMetas: Record<string, unknown>
+    }) => {
+      activeSessionId.value = snapshot.activeSessionId
+      sessionMessages.value = snapshot.sessionMessages
+      sessionMetas.value = snapshot.sessionMetas
+    })
 
     const setSessionMessages = vi.fn((sessionId: string, next: Array<{ role: string, content: string }>) => {
       sessionMessages.value[sessionId] = next
@@ -162,6 +172,7 @@ describe('useChatSyncStore authority ingest failures', async () => {
       activeSessionId,
       sessionMessages,
       sessionMetas,
+      applyRemoteSnapshot,
       setSessionMessages,
       getSessionMessages,
       ingest,
@@ -211,4 +222,148 @@ describe('useChatSyncStore authority ingest failures', async () => {
     peer.close()
     store.dispose()
   })
+
+  /**
+   * @example
+   * it('replaces the last failed turn before retrying', async () => {
+   *   // authority receives retry command for trailing user -> error pair
+   *   // authoritative session removes that failed turn before re-ingesting the user text
+   * })
+   */
+  it('replaces the last failed turn before retrying', async () => {
+    mockState.sessionMessages.value['session-1'] = [
+      { role: 'system', content: 'init' },
+      { role: 'user', content: 'hello-1' },
+      { role: 'assistant', content: 'answer-1' },
+      { role: 'user', content: 'hello' },
+      { role: 'error', content: 'Remote sent 400 response' },
+      { role: 'user', content: 'hello-3' },
+      { role: 'assistant', content: 'answer-3' },
+    ]
+    mockState.ingest.mockResolvedValueOnce(undefined)
+
+    const store = useChatSyncStore()
+    store.initialize('authority')
+
+    const peer = new MockBroadcastChannel('airi:stage-tamagotchi:chat-sync')
+    peer.postMessage({
+      type: 'command',
+      requestId: 'req-2',
+      senderId: 'peer',
+      command: 'retry',
+      payload: {
+        sessionId: 'session-1',
+        index: 4,
+      },
+    })
+
+    await vi.waitFor(() => {
+      expect(mockState.setSessionMessages).toHaveBeenCalledWith('session-1', [
+        { role: 'system', content: 'init' },
+        { role: 'user', content: 'hello-1' },
+        { role: 'assistant', content: 'answer-1' },
+      ])
+      expect(mockState.ingest).toHaveBeenCalledWith('hello', expect.any(Object), 'session-1')
+    })
+
+    const persistedMessages = mockState.sessionMessages.value['session-1']
+    expect(persistedMessages).toEqual([
+      { role: 'system', content: 'init' },
+      { role: 'user', content: 'hello-1' },
+      { role: 'assistant', content: 'answer-1' },
+    ])
+
+    peer.close()
+    store.dispose()
+  })
+
+  /**
+   * @example
+   * it('rewinds from the source user turn when retry targets an assistant message', async () => {
+   *   // future assistant retry still trims the whole tail from its originating user turn
+   * })
+   */
+  it('rewinds from the source user turn when retry targets an assistant message', async () => {
+    mockState.sessionMessages.value['session-1'] = [
+      { role: 'system', content: 'init' },
+      { role: 'user', content: 'hello-1' },
+      { role: 'assistant', content: 'answer-1' },
+      { role: 'user', content: 'hello-2' },
+      { role: 'assistant', content: 'answer-2' },
+      { role: 'user', content: 'hello-3' },
+    ]
+    mockState.ingest.mockResolvedValueOnce(undefined)
+
+    const store = useChatSyncStore()
+    store.initialize('authority')
+
+    const peer = new MockBroadcastChannel('airi:stage-tamagotchi:chat-sync')
+    peer.postMessage({
+      type: 'command',
+      requestId: 'req-3',
+      senderId: 'peer',
+      command: 'retry',
+      payload: {
+        sessionId: 'session-1',
+        index: 4,
+      },
+    })
+
+    await vi.waitFor(() => {
+      expect(mockState.setSessionMessages).toHaveBeenCalledWith('session-1', [
+        { role: 'system', content: 'init' },
+        { role: 'user', content: 'hello-1' },
+        { role: 'assistant', content: 'answer-1' },
+      ])
+      expect(mockState.ingest).toHaveBeenCalledWith('hello-2', expect.any(Object), 'session-1')
+    })
+
+    peer.close()
+    store.dispose()
+  })
+
+  /**
+   * @example
+   * it('keeps the follower chat window on its local session while applying remote snapshots', async () => {
+   *   // follower already displays session-2
+   *   // authority snapshot arrives with session-1 as active
+   *   // follower keeps session-2 selected but still receives session-2 message updates
+   * })
+   */
+  it('keeps the follower chat window on its local session while applying remote snapshots', async () => {
+    mockState.activeSessionId.value = 'session-2'
+    mockState.sessionMessages.value = {
+      'session-2': [{ role: 'system', content: 'chat-window' }],
+    }
+
+    const store = useChatSyncStore()
+    store.initialize('follower')
+
+    const authority = new MockBroadcastChannel('airi:stage-tamagotchi:chat-sync')
+    authority.postMessage({
+      type: 'session-snapshot',
+      authorityId: 'authority',
+      snapshot: {
+        activeSessionId: 'session-1',
+        sessionMessages: {
+          'session-1': [{ role: 'system', content: 'main-window' }],
+          'session-2': [{ role: 'system', content: 'chat-window' }, { role: 'user', content: 'retry me' }],
+        },
+        sessionMetas: {},
+      },
+    })
+
+    await vi.waitFor(() => {
+      expect(mockState.applyRemoteSnapshot).toHaveBeenCalledTimes(1)
+    })
+
+    expect(mockState.activeSessionId.value).toBe('session-2')
+    expect(mockState.sessionMessages.value['session-2']).toEqual([
+      { role: 'system', content: 'chat-window' },
+      { role: 'user', content: 'retry me' },
+    ])
+
+    authority.close()
+    store.dispose()
+  })
 })
diff --git a/apps/stage-tamagotchi/src/renderer/stores/chat-sync.ts b/apps/stage-tamagotchi/src/renderer/stores/chat-sync.ts
index 392880899..92f6b4034 100644
--- a/apps/stage-tamagotchi/src/renderer/stores/chat-sync.ts
+++ b/apps/stage-tamagotchi/src/renderer/stores/chat-sync.ts
@@ -44,12 +44,18 @@ interface IngestCommandPayload {
   toolset?: ToolsetId
 }
 
+interface RetryCommandPayload {
+  sessionId?: string
+  index: number
+}
+
 type ChatSyncMessage
   = | { type: 'authority-announcement', authorityId: string, sentAt: number }
     | { type: 'request-snapshot', requestId: string, senderId: string }
     | { type: 'session-snapshot', authorityId: string, snapshot: SessionSnapshotPayload }
     | { type: 'stream-snapshot', authorityId: string, snapshot: StreamSnapshotPayload }
     | { type: 'command', authorityId?: string, requestId: string, senderId: string, command: 'ingest', payload: IngestCommandPayload }
+    | { type: 'command', authorityId?: string, requestId: string, senderId: string, command: 'retry', payload: RetryCommandPayload }
     | { type: 'command', authorityId?: string, requestId: string, senderId: string, command: 'cleanup', payload: { sessionId?: string } }
     | { type: 'command', authorityId?: string, requestId: string, senderId: string, command: 'delete-message', payload: { sessionId?: string, messageId?: string, index?: number } }
     | { type: 'response', requestId: string, authorityId: string, ok: boolean, error?: string }
@@ -68,6 +74,50 @@ function createRequestId() {
   return `${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 10)}`
 }
 
+function getRetryText(message: ChatHistoryItem | undefined): string | null {
+  if (!message || message.role !== 'user')
+    return null
+
+  if (typeof message.content === 'string') {
+    const text = message.content.trim()
+    return text || null
+  }
+
+  if (!Array.isArray(message.content))
+    return null
+
+  const text = message.content.reduce<string[]>((texts, part) => {
+    if (part.type !== 'text')
+      return texts
+
+    const value = part.text?.trim()
+    if (value)
+      texts.push(value)
+
+    return texts
+  }, []).join('\n\n')
+
+  return text || null
+}
+
+function resolveRetrySourceIndex(messages: ChatHistoryItem[], index: number): number {
+  const targetMessage = messages[index]
+  if (!targetMessage)
+    return -1
+
+  if (targetMessage.role === 'user')
+    return index
+
+  if (targetMessage.role === 'assistant' || targetMessage.role === 'error') {
+    for (let cursor = index - 1; cursor >= 0; cursor -= 1) {
+      if (messages[cursor]?.role === 'user')
+        return cursor
+    }
+  }
+
+  return -1
+}
+
 export const useChatSyncStore = defineStore('stage-tamagotchi:chat-sync', () => {
   const instanceId = `${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 10)}`
   const mode = ref<ChatSyncMode>('inactive')
@@ -169,7 +219,17 @@ export const useChatSyncStore = defineStore('stage-tamagotchi:chat-sync', () =>
   }
 
   function applySessionSnapshot(snapshot: SessionSnapshotPayload) {
-    chatSession.applyRemoteSnapshot(snapshot)
+    const localActiveSessionId = activeSessionId.value
+    const shouldPreserveLocalActiveSession = mode.value === 'follower'
+      && !!localActiveSessionId
+      && !!snapshot.sessionMessages[localActiveSessionId]
+
+    chatSession.applyRemoteSnapshot({
+      ...snapshot,
+      activeSessionId: shouldPreserveLocalActiveSession
+        ? localActiveSessionId
+        : snapshot.activeSessionId,
+    })
   }
 
   function applyStreamSnapshot(snapshot: StreamSnapshotPayload) {
@@ -216,6 +276,27 @@ export const useChatSyncStore = defineStore('stage-tamagotchi:chat-sync', () =>
     }, payload.sessionId)
   }
 
+  async function executeRetry(payload: RetryCommandPayload) {
+    const sessionId = payload.sessionId || chatSession.activeSessionId
+    const currentMessages = chatSession.getSessionMessages(sessionId)
+    const sourceIndex = resolveRetrySourceIndex(currentMessages, payload.index)
+    if (sourceIndex < 0)
+      throw new Error('Retry target has no retriable source message')
+
+    const text = getRetryText(currentMessages[sourceIndex])
+    if (!text)
+      throw new Error('Retry target has no retriable user message')
+
+    const nextMessages = currentMessages.slice(0, sourceIndex)
+    chatSession.setSessionMessages(sessionId, nextMessages)
+
+    await executeIngest({
+      text,
+      sessionId,
+      toolset: 'widgets',
+    })
+  }
+
   function executeDeleteMessage(payload: { sessionId?: string, messageId?: string, index?: number }) {
     const sessionId = payload.sessionId || chatSession.activeSessionId
     const nextMessages = chatSession.getSessionMessages(sessionId).filter((message, index) => {
@@ -260,6 +341,9 @@ export const useChatSyncStore = defineStore('stage-tamagotchi:chat-sync', () =>
         case 'ingest':
           await executeIngest(message.payload)
           break
+        case 'retry':
+          await executeRetry(message.payload)
+          break
         case 'cleanup':
           cleanupMessages(message.payload.sessionId)
           break
@@ -402,6 +486,21 @@ export const useChatSyncStore = defineStore('stage-tamagotchi:chat-sync', () =>
     })
   }
 
+  async function requestRetry(payload: RetryCommandPayload) {
+    if (mode.value === 'authority') {
+      await executeRetry(payload)
+      return
+    }
+
+    return await dispatchCommand({
+      type: 'command',
+      requestId: createRequestId(),
+      senderId: instanceId,
+      command: 'retry',
+      payload,
+    })
+  }
+
   async function requestCleanup(sessionId?: string) {
     if (mode.value === 'authority') {
       cleanupMessages(sessionId)
@@ -447,6 +546,7 @@ export const useChatSyncStore = defineStore('stage-tamagotchi:chat-sync', () =>
     initialize,
     dispose,
     requestIngest,
+    requestRetry,
     requestCleanup,
     requestDeleteMessage,
   }
diff --git a/package.json b/package.json
index 1131e6682..f5d2170cf 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,7 @@
     "@unocss/eslint-plugin": "^66.6.8",
     "@unocss/preset-mini": "^66.6.8",
     "@unocss/preset-web-fonts": "^66.6.8",
+    "@vitest/browser-playwright": "catalog:vitest",
     "@vitest/coverage-v8": "catalog:vitest",
     "bumpp": "^11.0.1",
     "eslint": "^10.2.1",
@@ -85,6 +86,7 @@
     "vite": "^8.0.8",
     "vite-plugin-inspect": "catalog:",
     "vitest": "^4.1.4",
+    "vitest-browser-vue": "catalog:",
     "yaml": "^2.8.3"
   },
   "workspaces": [
diff --git a/packages/audio-pipelines-transcribe/package.json b/packages/audio-pipelines-transcribe/package.json
index 920f7ecbb..6a20821e5 100644
--- a/packages/audio-pipelines-transcribe/package.json
+++ b/packages/audio-pipelines-transcribe/package.json
@@ -10,9 +10,5 @@
   "dependencies": {
     "@moeru/std": "catalog:",
     "uncrypto": "catalog:"
-  },
-  "devDependencies": {
-    "@vitest/browser-playwright": "catalog:vitest",
-    "vitest": "catalog:vitest"
   }
 }
diff --git a/packages/i18n/src/locales/en/stage.yaml b/packages/i18n/src/locales/en/stage.yaml
index 693f09bd5..ad01945c0 100644
--- a/packages/i18n/src/locales/en/stage.yaml
+++ b/packages/i18n/src/locales/en/stage.yaml
@@ -1,4 +1,6 @@
 chat:
+  actions:
+    retry: Retry
   message:
     character-name:
       airi: AIRI
diff --git a/packages/i18n/src/locales/es/stage.yaml b/packages/i18n/src/locales/es/stage.yaml
index 45482c93e..dc06294ef 100644
--- a/packages/i18n/src/locales/es/stage.yaml
+++ b/packages/i18n/src/locales/es/stage.yaml
@@ -1,4 +1,6 @@
 chat:
+  actions:
+    retry: Volver a intentar
   message:
     character-name:
       airi: AIRI
diff --git a/packages/i18n/src/locales/fr/stage.yaml b/packages/i18n/src/locales/fr/stage.yaml
index f86f7037c..dd8718aed 100644
--- a/packages/i18n/src/locales/fr/stage.yaml
+++ b/packages/i18n/src/locales/fr/stage.yaml
@@ -1,4 +1,6 @@
 chat:
+  actions:
+    retry: Réessayer
   message:
     character-name:
       airi: AIRI
diff --git a/packages/i18n/src/locales/ja/stage.yaml b/packages/i18n/src/locales/ja/stage.yaml
index ce5e67c0c..6d0a8a50b 100644
--- a/packages/i18n/src/locales/ja/stage.yaml
+++ b/packages/i18n/src/locales/ja/stage.yaml
@@ -1,4 +1,6 @@
 chat:
+  actions:
+    retry: 再試行
   message:
     character-name:
       airi: AIRI
diff --git a/packages/i18n/src/locales/ko/stage.yaml b/packages/i18n/src/locales/ko/stage.yaml
index d46ae426a..313056557 100644
--- a/packages/i18n/src/locales/ko/stage.yaml
+++ b/packages/i18n/src/locales/ko/stage.yaml
@@ -1,4 +1,6 @@
 chat:
+  actions:
+    retry: 다시 시도
   message:
     character-name:
       airi: AIRI
diff --git a/packages/i18n/src/locales/ru/stage.yaml b/packages/i18n/src/locales/ru/stage.yaml
index b6ec462a1..5f413c998 100644
--- a/packages/i18n/src/locales/ru/stage.yaml
+++ b/packages/i18n/src/locales/ru/stage.yaml
@@ -1,4 +1,6 @@
 chat:
+  actions:
+    retry: Повторить
   message:
     character-name:
       airi: AIRI
diff --git a/packages/i18n/src/locales/vi/stage.yaml b/packages/i18n/src/locales/vi/stage.yaml
index a35988397..f98b05c8c 100644
--- a/packages/i18n/src/locales/vi/stage.yaml
+++ b/packages/i18n/src/locales/vi/stage.yaml
@@ -1,4 +1,6 @@
 chat:
+  actions:
+    retry: Thử lại
   message:
     character-name:
       airi: AIRI
diff --git a/packages/i18n/src/locales/zh-Hans/stage.yaml b/packages/i18n/src/locales/zh-Hans/stage.yaml
index b09fe62d1..5c36bd90c 100644
--- a/packages/i18n/src/locales/zh-Hans/stage.yaml
+++ b/packages/i18n/src/locales/zh-Hans/stage.yaml
@@ -1,4 +1,6 @@
 chat:
+  actions:
+    retry: 重试
   message:
     character-name:
       airi: AIRI
diff --git a/packages/i18n/src/locales/zh-Hant/stage.yaml b/packages/i18n/src/locales/zh-Hant/stage.yaml
index 71d221935..27d2fb456 100644
--- a/packages/i18n/src/locales/zh-Hant/stage.yaml
+++ b/packages/i18n/src/locales/zh-Hant/stage.yaml
@@ -1,4 +1,6 @@
 chat:
+  actions:
+    retry: 重試
   message:
     character-name:
       airi: AIRI
diff --git a/packages/stage-ui/package.json b/packages/stage-ui/package.json
index 3e5da10c5..b1bcb1dd4 100644
--- a/packages/stage-ui/package.json
+++ b/packages/stage-ui/package.json
@@ -195,6 +195,7 @@
     "unplugin-info": "catalog:",
     "unplugin-yaml": "^4.1.0",
     "vite": "^6.4.2",
+    "vitest-browser-vue": "catalog:",
     "vue": "catalog:",
     "vue-tsc": "^3.2.6"
   }
diff --git a/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.test.ts b/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.test.ts
new file mode 100644
index 000000000..c4f834533
--- /dev/null
+++ b/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.test.ts
@@ -0,0 +1,46 @@
+import { describe, expect, it } from 'vitest'
+
+import { createChatActionMenuItems } from './menu-items'
+
+/**
+ * @example
+ * describe('createChatActionMenuItems', () => {
+ *   it('includes retry between copy and delete when retry is available', () => {})
+ * })
+ */
+describe('createChatActionMenuItems', () => {
+  /**
+   * @example
+   * it('includes retry between copy and delete when retry is available', () => {
+   *   const items = createChatActionMenuItems({ canCopy: true, canRetry: true, canDelete: true })
+   *   expect(items.map(item => item.action)).toEqual(['copy', 'retry', 'delete'])
+   * })
+   */
+  it('includes retry between copy and delete when retry is available', () => {
+    const items = createChatActionMenuItems({
+      canCopy: true,
+      canRetry: true,
+      canDelete: true,
+    })
+
+    expect(items.map(item => item.action)).toEqual(['copy', 'retry', 'delete'])
+    expect(items[1]?.label).toBe('Retry')
+  })
+
+  /**
+   * @example
+   * it('omits retry when retry is unavailable', () => {
+   *   const items = createChatActionMenuItems({ canCopy: true, canRetry: false, canDelete: true })
+   *   expect(items.map(item => item.action)).toEqual(['copy', 'delete'])
+   * })
+   */
+  it('omits retry when retry is unavailable', () => {
+    const items = createChatActionMenuItems({
+      canCopy: true,
+      canRetry: false,
+      canDelete: true,
+    })
+
+    expect(items.map(item => item.action)).toEqual(['copy', 'delete'])
+  })
+})
diff --git a/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.ts b/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.ts
index 0c926413e..56a5cea69 100644
--- a/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.ts
+++ b/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.ts
@@ -1,33 +1,3 @@
-export type ChatActionMenuAction = 'copy' | 'delete'
-
-export interface ChatActionMenuItem {
-  action: ChatActionMenuAction
-  label: string
-  icon: string
-  danger?: boolean
-}
-
-export function createChatActionMenuItems(options: {
-  canCopy: boolean
-  canDelete: boolean
-}): ChatActionMenuItem[] {
-  return [
-    options.canCopy
-      ? {
-          action: 'copy',
-          label: 'Copy',
-          icon: 'i-solar:copy-bold',
-        }
-      : null,
-    options.canDelete
-      ? {
-          action: 'delete',
-          label: 'Delete',
-          icon: 'i-solar:trash-bin-minimalistic-bold',
-          danger: true,
-        }
-      : null,
-  ].filter(Boolean) as ChatActionMenuItem[]
-}
-
 export { default as ChatActionMenu } from './index.vue'
+export type { ChatActionMenuAction, ChatActionMenuItem } from './menu-items'
+export { createChatActionMenuItems } from './menu-items'
diff --git a/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.vue b/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.vue
index 445c5a3c5..7fd29f263 100644
--- a/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.vue
+++ b/packages/stage-ui/src/components/scenarios/chat/components/action-menu/index.vue
@@ -21,6 +21,7 @@ import {
   DropdownMenuTrigger,
 } from 'reka-ui'
 import { computed, inject, reactive, ref, shallowRef, toRef, useTemplateRef, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
 import { useWebHaptics } from 'web-haptics/vue'
 
 import { createChatActionMenuItems } from '.'
@@ -30,12 +31,14 @@ import { chatScrollContainerKey } from '../../constants'
 
 const props = withDefaults(defineProps<{
   canCopy?: boolean
+  canRetry?: boolean
   canDelete?: boolean
   copyText?: string
   menuLabel?: string
   placement?: 'left' | 'right'
 }>(), {
   canCopy: true,
+  canRetry: false,
   canDelete: true,
   copyText: '',
   menuLabel: 'Message actions',
@@ -44,6 +47,7 @@ const props = withDefaults(defineProps<{
 
 const emit = defineEmits<{
   (e: 'copy'): void
+  (e: 'retry'): void
   (e: 'delete'): void
 }>()
 defineSlots<{
@@ -79,11 +83,14 @@ const bottomSentinelVisible = useElementVisibility(bottomSentinelRef, {
 
 const { trigger } = useWebHaptics()
 const { isMobile } = useBreakpoints()
+const { t } = useI18n()
 const shouldDisableDropdownMenu = computed(() => (isStageWeb() || isStageCapacitor()) && isMobile.value)
 
 const menuItems = computed(() => createChatActionMenuItems({
   canCopy: props.canCopy && props.copyText.trim().length > 0,
+  canRetry: props.canRetry,
   canDelete: props.canDelete,
+  retryLabel: t('stage.chat.actions.retry'),
 }))
 const hasMenuItems = computed(() => menuItems.value.length > 0)
 const forceVisible = computed(() => contextMenuOpen.value)
@@ -143,6 +150,11 @@ async function handleAction(action: ChatActionMenuAction) {
     return
   }
 
+  if (action === 'retry') {
+    emit('retry')
+    return
+  }
+
   emit('delete')
 }
 
diff --git a/packages/stage-ui/src/components/scenarios/chat/components/action-menu/menu-items.ts b/packages/stage-ui/src/components/scenarios/chat/components/action-menu/menu-items.ts
new file mode 100644
index 000000000..b3022ca98
--- /dev/null
+++ b/packages/stage-ui/src/components/scenarios/chat/components/action-menu/menu-items.ts
@@ -0,0 +1,40 @@
+export type ChatActionMenuAction = 'copy' | 'retry' | 'delete'
+
+export interface ChatActionMenuItem {
+  action: ChatActionMenuAction
+  label: string
+  icon: string
+  danger?: boolean
+}
+
+export function createChatActionMenuItems(options: {
+  canCopy: boolean
+  canRetry: boolean
+  canDelete: boolean
+  retryLabel?: string
+}): ChatActionMenuItem[] {
+  return [
+    options.canCopy
+      ? {
+          action: 'copy',
+          label: 'Copy',
+          icon: 'i-solar:copy-bold',
+        }
+      : null,
+    options.canRetry
+      ? {
+          action: 'retry',
+          label: options.retryLabel ?? 'Retry',
+          icon: 'i-solar:refresh-bold',
+        }
+      : null,
+    options.canDelete
+      ? {
+          action: 'delete',
+          label: 'Delete',
+          icon: 'i-solar:trash-bin-minimalistic-bold',
+          danger: true,
+        }
+      : null,
+  ].filter(Boolean) as ChatActionMenuItem[]
+}
diff --git a/packages/stage-ui/src/components/scenarios/chat/components/error-item.vue b/packages/stage-ui/src/components/scenarios/chat/components/error-item.vue
index 07f7707a0..92cc6b7c3 100644
--- a/packages/stage-ui/src/components/scenarios/chat/components/error-item.vue
+++ b/packages/stage-ui/src/components/scenarios/chat/components/error-item.vue
@@ -2,6 +2,7 @@
 import type { ChatHistoryItem, ErrorMessage } from '../../../../types/chat'
 
 import { isStageCapacitor, isStageWeb } from '@proj-airi/stage-shared'
+import { Button } from '@proj-airi/ui'
 import { computed } from 'vue'
 
 import { MarkdownRenderer } from '../../../markdown'
@@ -11,15 +12,19 @@ import { ChatActionMenu } from './action-menu'
 const props = withDefaults(defineProps<{
   message: ErrorMessage
   label: string
+  retryLabel?: string
+  canRetry?: boolean
   showPlaceholder?: boolean
   variant?: 'desktop' | 'mobile'
 }>(), {
+  canRetry: false,
   showPlaceholder: false,
   variant: 'desktop',
 })
 
 const emit = defineEmits<{
   (e: 'copy'): void
+  (e: 'retry'): void
   (e: 'delete'): void
 }>()
 
@@ -32,20 +37,30 @@ const copyText = computed(() => getChatHistoryItemCopyText(props.message as Chat
 </script>
 
 <template>
-  <div flex :class="variant === 'mobile' ? 'mr-0' : 'mr-12'">
+  <div
+    :class="[
+      'flex flex-col',
+      variant === 'mobile' ? 'mr-0' : 'mr-12',
+    ]"
+  >
     <ChatActionMenu
       :copy-text="copyText"
       :can-delete="!showPlaceholder"
+      :can-retry="canRetry && !showPlaceholder"
       @copy="emit('copy')"
+      @retry="emit('retry')"
       @delete="emit('delete')"
     >
       <template #default="{ setMeasuredElement }">
         <div
           :ref="setMeasuredElement"
-          flex="~ col" shadow="sm violet-200/50 dark:none"
-          min-w-20 rounded-xl h="unset <sm:fit"
           :class="[
             boxClasses,
+            'relative',
+            'flex flex-col',
+            'min-w-20 rounded-xl',
+            'h-unset <sm:h-fit',
+            'shadow-sm shadow-violet-200/50 dark:shadow-none',
             'bg-violet-100/80 dark:bg-violet-950/80',
             (isStageWeb() || isStageCapacitor()) && props.variant === 'mobile' ? 'select-none sm:select-auto' : '',
           ]"
@@ -65,5 +80,19 @@ const copyText = computed(() => getChatHistoryItemCopyText(props.message as Chat
         </div>
       </template>
     </ChatActionMenu>
+    <div
+      v-if="canRetry && !showPlaceholder"
+      :class="[
+        'self-end mt-1',
+      ]"
+    >
+      <Button
+        size="sm"
+        variant="ghost"
+        shape="square"
+        icon="i-solar:refresh-bold"
+        @click="emit('retry')"
+      />
+    </div>
   </div>
 </template>
diff --git a/packages/stage-ui/src/components/scenarios/chat/components/history.browser.test.ts b/packages/stage-ui/src/components/scenarios/chat/components/history.browser.test.ts
new file mode 100644
index 000000000..8f01eab1a
--- /dev/null
+++ b/packages/stage-ui/src/components/scenarios/chat/components/history.browser.test.ts
@@ -0,0 +1,136 @@
+import type { ChatHistoryItem } from '../../../../types/chat'
+
+import { describe, expect, it, vi } from 'vitest'
+import { render } from 'vitest-browser-vue'
+import { defineComponent, shallowRef } from 'vue'
+import { createI18n } from 'vue-i18n'
+
+import ChatHistory from './history.vue'
+
+vi.mock('../composables/use-chat-history-scroll', () => ({
+  useChatHistoryScroll: () => undefined,
+}))
+
+vi.mock('../../../markdown', () => ({
+  MarkdownRenderer: defineComponent({
+    name: 'MarkdownRendererStub',
+    props: {
+      content: {
+        type: String,
+        default: '',
+      },
+    },
+    template: '<div>{{ content }}</div>',
+  }),
+}))
+
+function createTestI18n() {
+  return createI18n({
+    legacy: false,
+    locale: 'en',
+    messages: {
+      en: {
+        stage: {
+          chat: {
+            actions: {
+              retry: 'Retry',
+            },
+            message: {
+              'character-name': {
+                'airi': 'AIRI',
+                'core-system': 'System',
+                'you': 'You',
+              },
+            },
+          },
+        },
+      },
+    },
+  })
+}
+
+function createHarness(messages: ChatHistoryItem[]) {
+  return defineComponent({
+    name: 'ChatHistoryRetryHarness',
+    components: {
+      ChatHistory,
+    },
+    setup() {
+      const lastRetryIndex = shallowRef('none')
+
+      function handleRetryMessage(payload: { index: number }) {
+        lastRetryIndex.value = String(payload.index)
+      }
+
+      return {
+        handleRetryMessage,
+        lastRetryIndex,
+        messages,
+      }
+    },
+    template: `
+      <div>
+        <ChatHistory
+          :messages="messages"
+          @retry-message="handleRetryMessage"
+        />
+        <output aria-label="retry-index">{{ lastRetryIndex }}</output>
+      </div>
+    `,
+  })
+}
+
+/**
+ * @example
+ * describe('ChatHistory retry actions', () => {
+ *   it('emits retry-message when the retry button is clicked for an error after a user message', async () => {})
+ * })
+ */
+describe('chatHistory retry actions', () => {
+  /**
+   * @example
+   * it('emits retry-message when the retry button is clicked for an error after a user message', async () => {
+   *   const screen = await render(createHarness(messages), { global: { plugins: [createTestI18n()] } })
+   *   await screen.getByRole('button', { name: 'Retry' }).click()
+   *   await expect.element(screen.getByLabelText('retry-index')).toHaveTextContent('1')
+   * })
+   */
+  it('emits retry-message when the retry button is clicked for an error after a user message', async () => {
+    const messages: ChatHistoryItem[] = [
+      { role: 'user', content: 'hello' },
+      { role: 'error', content: 'Remote sent 400 response' },
+    ]
+
+    const screen = await render(createHarness(messages), {
+      global: {
+        plugins: [createTestI18n()],
+      },
+    })
+
+    await screen.getByRole('button', { name: 'Retry' }).click()
+
+    await expect.element(screen.getByLabelText('retry-index')).toHaveTextContent('1')
+  })
+
+  /**
+   * @example
+   * it('does not render the retry button when the error is not preceded by a user message', async () => {
+   *   const screen = await render(createHarness(messages), { global: { plugins: [createTestI18n()] } })
+   *   expect(document.body.textContent).not.toContain('Retry')
+   * })
+   */
+  it('does not render the retry button when the error is not preceded by a user message', async () => {
+    const messages: ChatHistoryItem[] = [
+      { role: 'assistant', content: 'hello', slices: [], tool_results: [] },
+      { role: 'error', content: 'Remote sent 400 response' },
+    ]
+
+    await render(createHarness(messages), {
+      global: {
+        plugins: [createTestI18n()],
+      },
+    })
+
+    expect(document.body.textContent).not.toContain('Retry')
+  })
+})
diff --git a/packages/stage-ui/src/components/scenarios/chat/components/history.vue b/packages/stage-ui/src/components/scenarios/chat/components/history.vue
index f351b5721..34262b867 100644
--- a/packages/stage-ui/src/components/scenarios/chat/components/history.vue
+++ b/packages/stage-ui/src/components/scenarios/chat/components/history.vue
@@ -19,6 +19,7 @@ const props = withDefaults(defineProps<{
   assistantLabel?: string
   userLabel?: string
   errorLabel?: string
+  retryLabel?: string
   variant?: 'desktop' | 'mobile'
 }>(), {
   sending: false,
@@ -28,6 +29,7 @@ const props = withDefaults(defineProps<{
 const emit = defineEmits<{
   (e: 'copyMessage', payload: { message: ChatHistoryItem, index: number, key: string | number }): void
   (e: 'deleteMessage', payload: { message: ChatHistoryItem, index: number, key: string | number }): void
+  (e: 'retryMessage', payload: { message: ChatHistoryItem, index: number, key: string | number }): void
 }>()
 
 const chatHistoryRef = ref<HTMLDivElement>()
@@ -38,6 +40,7 @@ const labels = computed(() => ({
   assistant: props.assistantLabel ?? t('stage.chat.message.character-name.airi'),
   user: props.userLabel ?? t('stage.chat.message.character-name.you'),
   error: props.errorLabel ?? t('stage.chat.message.character-name.core-system'),
+  retry: props.retryLabel ?? t('stage.chat.actions.retry'),
 }))
 
 const streaming = computed<ChatAssistantMessage & { context?: ContextMessage } & { createdAt?: number }>(() => props.streamingMessage ?? { role: 'assistant', content: '', slices: [], tool_results: [], createdAt: Date.now() })
@@ -86,6 +89,14 @@ function emitDeleteMessage(message: ChatHistoryItem, index: number) {
     key: getChatHistoryItemKey(message, index),
   })
 }
+
+function emitRetryMessage(message: ChatHistoryItem, index: number) {
+  emit('retryMessage', {
+    message,
+    index,
+    key: getChatHistoryItemKey(message, index),
+  })
+}
 </script>
 
 <template>
@@ -100,9 +111,12 @@ function emitDeleteMessage(message: ChatHistoryItem, index: number) {
           v-if="message.role === 'error'"
           :message="message"
           :label="labels.error"
+          :retry-label="labels.retry"
+          :can-retry="renderMessages[index - 1]?.role === 'user'"
           :show-placeholder="sending && index === renderMessages.length - 1"
           :variant="variant"
           @copy="emitCopyMessage(message, index)"
+          @retry="emitRetryMessage(message, index)"
           @delete="emitDeleteMessage(message, index)"
         />
         <ChatAssistantItem
diff --git a/packages/stage-ui/vitest.config.ts b/packages/stage-ui/vitest.config.ts
index 26253de4d..0317430c2 100644
--- a/packages/stage-ui/vitest.config.ts
+++ b/packages/stage-ui/vitest.config.ts
@@ -1,14 +1,44 @@
 import { join } from 'node:path'
 import { cwd } from 'node:process'
 
+import Vue from '@vitejs/plugin-vue'
+
+import { playwright } from '@vitest/browser-playwright'
 import { loadEnv } from 'vite'
 import { defineConfig } from 'vitest/config'
 
 export default defineConfig(({ mode }) => {
-  return ({
+  return {
     test: {
-      include: ['src/**/*.test.ts'],
-      env: loadEnv(mode, join(cwd(), 'packages', 'stage-ui'), ''),
+      projects: [
+        {
+          extends: true,
+          test: {
+            name: 'node',
+            include: ['src/**/*.test.ts'],
+            exclude: ['src/**/*.browser.test.ts'],
+            env: loadEnv(mode, join(cwd(), 'packages', 'stage-ui'), ''),
+          },
+        },
+        {
+          extends: true,
+          plugins: [
+            Vue(),
+          ],
+          test: {
+            name: 'browser',
+            include: ['**/*.browser.{spec,test}.ts'],
+            exclude: ['**/node_modules/**'],
+            browser: {
+              enabled: true,
+              provider: playwright(),
+              instances: [
+                { browser: 'chromium' },
+              ],
+            },
+          },
+        },
+      ],
     },
-  })
+  }
 })
diff --git a/packages/ui/src/components/form/textarea/basic-text-area.vue b/packages/ui/src/components/form/textarea/basic-text-area.vue
index 67e3d81b6..ef592fdb0 100644
--- a/packages/ui/src/components/form/textarea/basic-text-area.vue
+++ b/packages/ui/src/components/form/textarea/basic-text-area.vue
@@ -53,7 +53,12 @@ watch(input, () => {
       return
     }
 
-    textareaHeight.value = `${textareaRef.value.scrollHeight}px`
+    // NOTICE: not sure why 4px is required but if not added, when
+    // input happened and placeholder now disappeared, the textarea will shrink
+    // a little bit and cause the input box to shake.
+    // TODO: find out the root cause and remove this magic number, or at least
+    // reference a more specific source.
+    textareaHeight.value = `${textareaRef.value.scrollHeight + 4}px`
   })
 }, { immediate: true })
 </script>
diff --git a/packages/ui/src/components/misc/button.vue b/packages/ui/src/components/misc/button.vue
index 1de3f6ba9..c9d788f07 100644
--- a/packages/ui/src/components/misc/button.vue
+++ b/packages/ui/src/components/misc/button.vue
@@ -109,6 +109,7 @@ const variantClasses: Record<ButtonVariant, Record<ButtonTheme, {
   'pure': {
     default: {
       default: [
+        'rounded-lg',
         'bg-transparent',
         'text-neutral-900 dark:text-neutral-50',
         '!px-0 !py-0',
@@ -118,10 +119,11 @@ const variantClasses: Record<ButtonVariant, Record<ButtonTheme, {
   'ghost': {
     default: {
       default: [
+        'rounded-lg',
         'bg-transparent',
         'hover:bg-neutral-100/50 dark:hover:bg-neutral-800/50',
         'text-neutral-500 dark:text-neutral-400',
-        'focus:ring-2 focus:ring-neutral-300/30 dark:focus:ring-neutral-600/30',
+        'focus:ring-none',
       ],
     },
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 159e1d0b1..8452a214c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -327,6 +327,9 @@ catalogs:
     vite-plugin-mkcert:
       specifier: ^2.0.0
       version: 2.0.0
+    vitest-browser-vue:
+      specifier: ^2.1.0
+      version: 2.1.0
     vue:
       specifier: ^3.5.32
       version: 3.5.32
@@ -361,9 +364,6 @@ catalogs:
     '@vitest/coverage-v8':
       specifier: ^4.1.4
       version: 4.1.4
-    vitest:
-      specifier: ^4.1.4
-      version: 4.1.4
   xsai:
     unspeech:
       specifier: ^0.1.13
@@ -442,6 +442,9 @@ importers:
       '@unocss/preset-web-fonts':
         specifier: ^66.6.8
         version: 66.6.8
+      '@vitest/browser-playwright':
+        specifier: catalog:vitest
+        version: 4.1.4(bufferutil@4.1.0)(playwright@1.59.1)(utf-8-validate@5.0.10)(vite@8.0.8(@types/node@24.12.2)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vitest@4.1.4)
       '@vitest/coverage-v8':
         specifier: catalog:vitest
         version: 4.1.4(@vitest/browser@4.1.4)(vitest@4.1.4)
@@ -529,6 +532,9 @@ importers:
       vitest:
         specifier: ^4.1.4
         version: 4.1.4(@opentelemetry/api@1.9.1)(@types/node@24.12.2)(@vitest/browser-playwright@4.1.4)(@vitest/coverage-v8@4.1.4)(jsdom@27.4.0(bufferutil@4.1.0)(canvas@3.2.3)(utf-8-validate@5.0.10))(vite@8.0.8(@types/node@24.12.2)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
+      vitest-browser-vue:
+        specifier: 'catalog:'
+        version: 2.1.0(vitest@4.1.4)(vue@3.5.32(typescript@5.9.3))
       yaml:
         specifier: ^2.8.3
         version: 2.8.3
@@ -2373,13 +2379,6 @@ importers:
       uncrypto:
         specifier: 'catalog:'
         version: 0.1.3
-    devDependencies:
-      '@vitest/browser-playwright':
-        specifier: catalog:vitest
-        version: 4.1.4(bufferutil@4.1.0)(playwright@1.59.1)(utf-8-validate@5.0.10)(vite@8.0.8(@types/node@25.6.0)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vitest@4.1.4)
-      vitest:
-        specifier: catalog:vitest
-        version: 4.1.4(@opentelemetry/api@1.9.1)(@types/node@25.6.0)(@vitest/browser-playwright@4.1.4)(@vitest/coverage-v8@4.1.4)(jsdom@27.4.0(bufferutil@4.1.0)(canvas@3.2.3)(utf-8-validate@5.0.10))(vite@8.0.8(@types/node@25.6.0)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
 
   packages/cap-vite:
     dependencies:
@@ -3448,6 +3447,9 @@ importers:
       vite:
         specifier: ^6.4.2
         version: 6.4.2(@types/node@25.6.0)(jiti@2.6.1)(less@4.6.4)(lightningcss@1.32.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
+      vitest-browser-vue:
+        specifier: 'catalog:'
+        version: 2.1.0(vitest@4.1.4)(vue@3.5.32(typescript@5.9.3))
       vue:
         specifier: 'catalog:'
         version: 3.5.32(typescript@5.9.3)
@@ -6926,6 +6928,9 @@ packages:
   '@nxg-org/mineflayer-util-plugin@1.8.4':
     resolution: {integrity: sha512-hPaCZxU0Aq+gUSi/l6x7n32hUG6bnDugAMoQXD2dFE/gyNkmRSpmgH5+Y6G41w3H8P3Nl++upGCOlaxvZ7RuoA==}
 
+  '@one-ini/wasm@0.1.1':
+    resolution: {integrity: sha512-XuySG1E38YScSJoMlqovLru4KTUNSjgVTIjyh7qMX6aNN5HY5Ct5LhRJdxO79JtTzKfzV/bnWpz+zquYrISsvw==}
+
   '@opentelemetry/api-logs@0.215.0':
     resolution: {integrity: sha512-xrFlqhdhUyO8wSRn6DjE0145/HPWSJ5Nm0C7vWua6TdL/FSEAZvEyvdsa9CRXuxo9ebb7j/NEPhEcO62IJ0qUA==}
     engines: {node: '>=8.0.0'}
@@ -10392,6 +10397,9 @@ packages:
   '@vue/shared@3.5.32':
     resolution: {integrity: sha512-ksNyrmRQzWJJ8n3cRDuSF7zNNontuJg1YHnmWRJd2AMu8Ij2bqwiiri2lH5rHtYPZjj4STkNcgcmiQqlOjiYGg==}
 
+  '@vue/test-utils@2.4.6':
+    resolution: {integrity: sha512-FMxEjOpYNYiFe0GkaHsnJPXFHxQ6m4t8vI/ElPGpMWxZKpmRvQ33OIrvRXemy6yha03RxhOlQuy+gZMC3CQSow==}
+
   '@vue/tsconfig@0.9.1':
     resolution: {integrity: sha512-buvjm+9NzLCJL29KY1j1991YYJ5e6275OiK+G4jtmfIb+z4POywbdm0wXusT9adVWqe0xqg70TbI7+mRx4uU9w==}
     peerDependencies:
@@ -10606,6 +10614,10 @@ packages:
   '@xsai/utils-chat@0.5.0-beta.2':
     resolution: {integrity: sha512-WSjoxY0w+3oRSZQkAWHdhOuidRlaYJR3y6bvELmJje6lCh86a4PQtMIPwJIoTmtuVY13ZgGvvKqoQz/0xS32LA==}
 
+  abbrev@2.0.0:
+    resolution: {integrity: sha512-6/mh1E2u2YgEsCHdY0Yx5oW+61gZU+1vXaoiHHrpKeuRNNgFvS+/jrwHiQhB5apAf5oB7UB7E19ol2R2LKH8hQ==}
+    engines: {node: ^14.17.0 || ^16.13.0 || >=18.0.0}
+
   abbrev@3.0.1:
     resolution: {integrity: sha512-AO2ac6pjRB3SJmGJo+v5/aK6Omggp6fsLrs6wN9bd35ulu4cCwaAU9+7ZhXjeqHVkaHThLuzH0nZr0YpCDhygg==}
     engines: {node: ^18.17.0 || >=20.5.0}
@@ -11442,6 +11454,10 @@ packages:
     resolution: {integrity: sha512-PqMLy5+YGwhMh1wS04mVG44oqDsgyLRSKJBdOo1bnYhMKBW65gZF1dRp2OZRhiTjgUHljy99qkO7bsctLaw35Q==}
     engines: {node: '>=12.20.0'}
 
+  commander@10.0.1:
+    resolution: {integrity: sha512-y4Mg2tXshplEbSGzx7amzPwKKOCGuoSRP/CjEdwwk0FOGlUbq6lKuoyDZTNZkmxHdJtp54hdfY/JUrdL7Xfdug==}
+    engines: {node: '>=14'}
+
   commander@11.1.0:
     resolution: {integrity: sha512-yPVavfyCcRhmorC7rWlkHn15b4wDVgVmBA7kV4QVBsF7kv/9TKJAbAXVTxvTnwP8HHKjRCJDClKbciiYS7p0DQ==}
     engines: {node: '>=16'}
@@ -12238,6 +12254,11 @@ packages:
     resolution: {integrity: sha512-dS5cbA9rA2VR4Ybuvhg6jvdmp46ubLn3E+px8cG/35aEDNclrqoCjg6mt0HYZ/M+OoESS3jSkCrqk1kWAEhWAw==}
     engines: {bun: '>=1', deno: '>=2', node: '>=16'}
 
+  editorconfig@1.0.7:
+    resolution: {integrity: sha512-e0GOtq/aTQhVdNyDU9e02+wz9oDDM+SIOQxWME2QRjzRX5yyLAuHDE+0aE8vHb9XRC8XD37eO2u57+F09JqFhw==}
+    engines: {node: '>=14'}
+    hasBin: true
+
   ee-first@1.1.1:
     resolution: {integrity: sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==}
 
@@ -13900,6 +13921,15 @@ packages:
   jpeg-js@0.4.4:
     resolution: {integrity: sha512-WZzeDOEtTOBK4Mdsar0IqEU5sMr3vSV2RqkAIzUEV2BHnUfKGyswWFPFwK5EeDo93K3FohSHbLAjj0s1Wzd+dg==}
 
+  js-beautify@1.15.4:
+    resolution: {integrity: sha512-9/KXeZUKKJwqCXUdBxFJ3vPh467OCckSBmYDwSK/EtV090K+iMJ7zx2S3HLVDIWFQdqMIsZWbnaGiba18aWhaA==}
+    engines: {node: '>=14'}
+    hasBin: true
+
+  js-cookie@3.0.5:
+    resolution: {integrity: sha512-cEiJEAEoIbWfCZYKWhVwFuvPX1gETRYPw6LlaTKoxD3s2AkXzkCjnp6h0V77ozyqj0jakteJ4YqDJT830+lVGw==}
+    engines: {node: '>=14'}
+
   js-tokens@10.0.0:
     resolution: {integrity: sha512-lM/UBzQmfJRo9ABXbPWemivdCW8V2G8FHaHdypQaIy523snUjog0W71ayWXTjiR+ixeMyVHN2XcpnTd/liPg/Q==}
 
@@ -14952,6 +14982,11 @@ packages:
   node-vibrant@4.0.4:
     resolution: {integrity: sha512-hA/pUXBE9TJ41G9FlTkzeqD5JdxgvvPGYZb/HNpdkaxxXUEnP36imSolZ644JuPun+lTd+FpWWtBpTYdp2noQA==}
 
+  nopt@7.2.1:
+    resolution: {integrity: sha512-taM24ViiimT/XntxbPyJQzCG+p4EKOpgD3mxFwW38mGjVUrfERQOeY4EDHjdnptttfHuHQXFx+lTP08Q+mLa/w==}
+    engines: {node: ^14.17.0 || ^16.13.0 || >=18.0.0}
+    hasBin: true
+
   nopt@8.1.0:
     resolution: {integrity: sha512-ieGu42u/Qsa4TFktmaKEwM6MQH0pOWnaB3htzh0JRtx84+Mebc0cbZYN5bC+6WTZ4+77xrL9Pn5m7CV6VIkV7A==}
     engines: {node: ^18.17.0 || >=20.5.0}
@@ -17631,6 +17666,12 @@ packages:
       postcss:
         optional: true
 
+  vitest-browser-vue@2.1.0:
+    resolution: {integrity: sha512-K3H/oxIOY4EjXx2bxwrLsPg4jTMvzpRW6Jb6T8XZRoxUvmDVwGkd8mua130F8GZezE7H5QYoXd/S8hYijw7j5g==}
+    peerDependencies:
+      vitest: ^4.0.0-0
+      vue: ^3.0.0
+
   vitest@4.1.4:
     resolution: {integrity: sha512-tFuJqTxKb8AvfyqMfnavXdzfy3h3sWZRWwfluGbkeR7n0HUev+FmNgZ8SDrRBTVrVCjgH5cA21qGbCffMNtWvg==}
     engines: {node: ^20.0.0 || ^22.0.0 || >=24.0.0}
@@ -17679,6 +17720,9 @@ packages:
   vscode-uri@3.1.0:
     resolution: {integrity: sha512-/BpdSx+yCQGnCvecbyXdxHDkuk55/G3xwnC0GqY4gmQ3j+A+g8kzzgB4Nk/SINjqn6+waqw3EgbVF2QKExkRxQ==}
 
+  vue-component-type-helpers@2.2.12:
+    resolution: {integrity: sha512-YbGqHZ5/eW4SnkPNR44mKVc6ZKQoRs/Rux1sxC6rdwXb4qpbOSYfDr9DsTHolOTGmIKgM9j141mZbBeg05R1pw==}
+
   vue-demi@0.14.10:
     resolution: {integrity: sha512-nMZBOwuzabUO0nLgIcc6rycZEebF6eeUfaiQx9+WSk8e29IbLvPU9feI6tqW4kTo3hvoYAJkMh8n8D0fuISphg==}
     engines: {node: '>=12'}
@@ -21045,6 +21089,8 @@ snapshots:
 
   '@nxg-org/mineflayer-util-plugin@1.8.4': {}
 
+  '@one-ini/wasm@0.1.1': {}
+
   '@opentelemetry/api-logs@0.215.0':
     dependencies:
       '@opentelemetry/api': 1.9.1
@@ -24147,7 +24193,6 @@ snapshots:
       - msw
       - utf-8-validate
       - vite
-    optional: true
 
   '@vitest/browser-playwright@4.1.4(bufferutil@4.1.0)(playwright@1.59.1)(utf-8-validate@5.0.10)(vite@8.0.8(@types/node@25.6.0)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vitest@4.1.4)':
     dependencies:
@@ -24161,6 +24206,7 @@ snapshots:
       - msw
       - utf-8-validate
       - vite
+    optional: true
 
   '@vitest/browser@4.1.4(bufferutil@4.1.0)(utf-8-validate@5.0.10)(vite@8.0.8(@types/node@24.12.2)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vitest@4.1.4)':
     dependencies:
@@ -24178,7 +24224,6 @@ snapshots:
       - msw
       - utf-8-validate
       - vite
-    optional: true
 
   '@vitest/browser@4.1.4(bufferutil@4.1.0)(utf-8-validate@5.0.10)(vite@8.0.8(@types/node@25.6.0)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vitest@4.1.4)':
     dependencies:
@@ -24196,6 +24241,7 @@ snapshots:
       - msw
       - utf-8-validate
       - vite
+    optional: true
 
   '@vitest/coverage-v8@4.1.4(@vitest/browser@4.1.4)(vitest@4.1.4)':
     dependencies:
@@ -24249,6 +24295,7 @@ snapshots:
       magic-string: 0.30.21
     optionalDependencies:
       vite: 8.0.8(@types/node@25.6.0)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
+    optional: true
 
   '@vitest/pretty-format@4.1.4':
     dependencies:
@@ -24769,6 +24816,11 @@ snapshots:
 
   '@vue/shared@3.5.32': {}
 
+  '@vue/test-utils@2.4.6':
+    dependencies:
+      js-beautify: 1.15.4
+      vue-component-type-helpers: 2.2.12
+
   '@vue/tsconfig@0.9.1(typescript@5.9.3)(vue@3.5.32(typescript@5.9.3))':
     optionalDependencies:
       typescript: 5.9.3
@@ -25021,6 +25073,8 @@ snapshots:
     dependencies:
       '@xsai/shared-chat': 0.5.0-beta.2(patch_hash=26f2819b987245ec85f216b821ddf73aeb28fd7e611238a2d37250e42f838a01)
 
+  abbrev@2.0.0: {}
+
   abbrev@3.0.1: {}
 
   abort-controller@3.0.0:
@@ -25864,6 +25918,8 @@ snapshots:
       table-layout: 4.1.1
       typical: 7.3.0
 
+  commander@10.0.1: {}
+
   commander@11.1.0: {}
 
   commander@12.1.0: {}
@@ -26497,6 +26553,13 @@ snapshots:
       '@noble/curves': 1.9.7
       '@noble/hashes': 1.8.0
 
+  editorconfig@1.0.7:
+    dependencies:
+      '@one-ini/wasm': 0.1.1
+      commander: 10.0.1
+      minimatch: 9.0.5
+      semver: 7.7.4
+
   ee-first@1.1.1: {}
 
   ejs@3.1.10:
@@ -28574,6 +28637,16 @@ snapshots:
 
   jpeg-js@0.4.4: {}
 
+  js-beautify@1.15.4:
+    dependencies:
+      config-chain: 1.1.13
+      editorconfig: 1.0.7
+      glob: 10.5.0
+      js-cookie: 3.0.5
+      nopt: 7.2.1
+
+  js-cookie@3.0.5: {}
+
   js-tokens@10.0.0: {}
 
   js-tokens@4.0.0: {}
@@ -29939,6 +30012,10 @@ snapshots:
     transitivePeerDependencies:
       - encoding
 
+  nopt@7.2.1:
+    dependencies:
+      abbrev: 2.0.0
+
   nopt@8.1.0:
     dependencies:
       abbrev: 3.0.1
@@ -33330,6 +33407,12 @@ snapshots:
       - sortablejs
       - universal-cookie
 
+  vitest-browser-vue@2.1.0(vitest@4.1.4)(vue@3.5.32(typescript@5.9.3)):
+    dependencies:
+      '@vue/test-utils': 2.4.6
+      vitest: 4.1.4(@opentelemetry/api@1.9.1)(@types/node@24.12.2)(@vitest/browser-playwright@4.1.4)(@vitest/coverage-v8@4.1.4)(jsdom@27.4.0(bufferutil@4.1.0)(canvas@3.2.3)(utf-8-validate@5.0.10))(vite@8.0.8(@types/node@24.12.2)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
+      vue: 3.5.32(typescript@5.9.3)
+
   vitest@4.1.4(@opentelemetry/api@1.9.1)(@types/node@24.12.2)(@vitest/browser-playwright@4.1.4)(@vitest/coverage-v8@4.1.4)(jsdom@27.4.0(bufferutil@4.1.0)(canvas@3.2.3)(utf-8-validate@5.0.10))(vite@8.0.8(@types/node@24.12.2)(esbuild@0.27.2)(jiti@2.6.1)(less@4.6.4)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)):
     dependencies:
       '@vitest/expect': 4.1.4
@@ -33391,6 +33474,7 @@ snapshots:
       jsdom: 27.4.0(bufferutil@4.1.0)(canvas@3.2.3)(utf-8-validate@5.0.10)
     transitivePeerDependencies:
       - msw
+    optional: true
 
   vscode-ext-gen@1.6.0:
     dependencies:
@@ -33399,6 +33483,8 @@ snapshots:
 
   vscode-uri@3.1.0: {}
 
+  vue-component-type-helpers@2.2.12: {}
+
   vue-demi@0.14.10(vue@3.5.32(typescript@5.9.3)):
     dependencies:
       vue: 3.5.32(typescript@5.9.3)
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index c9a893c78..8b25fa3ae 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -135,6 +135,7 @@ catalog:
   vite: ^8.0.8
   vite-plugin-inspect: 12.0.0-beta.1
   vite-plugin-mkcert: ^2.0.0
+  vitest-browser-vue: ^2.1.0
   vue: ^3.5.32
   vue-router: ^5.0.4
   vue-sonner: 2.0.9