feat(chat): add voice playback with auto-play and visual effects (#396)

## Features

### Core Functionality
- **Web Speech API Integration**: Add TTS (text-to-speech) playback for assistant messages
- **Manual Playback**: Click-to-play button next to each assistant message (🔊 icon)
- **Auto-play Mode**: Toggle switch in input bar to auto-play responses
- **Playback Controls**: Play/pause/stop with visual feedback

### User Interface
- **Playback Button**: Hover-activated button in message meta area (next to copy button)
- **Auto-play Switch**: Voice icon toggle in input top bar with state persistence
- **Mobile Optimization**: Buttons always visible on mobile (≤768px width)
- **Visual Feedback**:
  - Rainbow glowing border during playback (2px border, 10px/20px glow)
  - 4-second animation cycle through 6 colors
  - Play/pause icon toggle

### Voice Customization
- **Pitch/Rate Control**: Low-pitched (0.5) fast-speaking (1.2) "male voice"
- **Auto Voice Selection**: Attempts to select male voices across platforms (macOS: Yaoyao, Windows: David/Daniel)
- **Platform Compatibility**: Works with system-provided voices on macOS, iOS, Android, Windows

### Content Filtering
- Smart text extraction: filters code blocks, `<thinking>` tags, HTML
- Only assistant messages are eligible for playback
- Tool and system messages are excluded

### Internationalization
- Added 8 language translations (en, zh, de, es, fr, ja, ko, pt)
- New keys: `playSpeech`, `pauseSpeech`, `resumeSpeech`, `stopSpeech`, `autoPlaySpeech`, `speechNotSupported`

## Technical Details

### New Files
- `packages/client/src/composables/useSpeech.ts`: Core speech synthesis composable
  - Voice loading and selection logic
  - Single-instance global speech manager
  - Event handling (onstart, onend, onerror, onboundary)
  - State management (isPlaying, isPaused, currentMessageId)

### Modified Components
- **ChatInput.vue**: Auto-play switch with localStorage persistence
- **MessageItem.vue**:
  - Playback button integration
  - Event listener for auto-play triggers
  - Mobile-first button visibility
  - Rainbow border animation during playback

### Store Changes
- `chat.ts`:
  - Added `autoPlaySpeechEnabled` state
  - `setAutoPlaySpeech()` method
  - `playMessageSpeech()` method for event-based playback
  - Auto-play trigger on `run.completed` event

## Browser Support
- Requires Web Speech API support (all modern browsers)
- Graceful degradation: button hidden if API not supported
- Voice availability varies by platform and OS

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/client/src/components/hermes/chat/ChatInput.vue

@@ -4,7 +4,7 @@ import { useChatStore } from '@/stores/hermes/chat'
 import { useAppStore } from '@/stores/hermes/app'
 import { useProfilesStore } from '@/stores/hermes/profiles'
 import { fetchContextLength } from '@/api/hermes/sessions'
-import { NButton, NTooltip } from 'naive-ui'
+import { NButton, NTooltip, NSwitch } from 'naive-ui'
 import { computed, ref, onMounted, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 
@@ -18,6 +18,26 @@ const isDragging = ref(false)
 const dragCounter = ref(0)
 const isComposing = ref(false)
 
+// 自动播放语音开关
+const autoPlaySpeech = ref(false)
+
+// 从 localStorage 读取设置
+onMounted(() => {
+  const saved = localStorage.getItem('autoPlaySpeech')
+  if (saved !== null) {
+    autoPlaySpeech.value = saved === 'true'
+    // 同步到 chat store
+    chatStore.setAutoPlaySpeech(autoPlaySpeech.value)
+  }
+})
+
+// 监听变化并保存
+watch(autoPlaySpeech, (value) => {
+  localStorage.setItem('autoPlaySpeech', String(value))
+  // 通知 chat store
+  chatStore.setAutoPlaySpeech(value)
+})
+
 const canSend = computed(() => inputText.value.trim() || attachments.value.length > 0)
 
 // --- Context info ---
@@ -195,7 +215,7 @@ function isImage(type: string): boolean {
 
 <template>
   <div class="chat-input-area">
-    <!-- Top bar: attach + context info -->
+    <!-- Top bar: attach + auto play speech + context info -->
     <div class="input-top-bar">
       <NTooltip trigger="hover">
         <template #trigger>
@@ -207,6 +227,25 @@ function isImage(type: string): boolean {
         </template>
         {{ t('chat.attachFiles') }}
       </NTooltip>
+
+      <div class="auto-play-speech-switch">
+        <NTooltip trigger="hover">
+          <template #trigger>
+            <div class="switch-label">
+              <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                <polygon points="5 3 19 12 5 21 5 3"/>
+              </svg>
+            </div>
+          </template>
+          {{ t('chat.autoPlaySpeech') }}
+        </NTooltip>
+        <NSwitch
+          size="small"
+          v-model:value="autoPlaySpeech"
+          :round="false"
+        />
+      </div>
+
       <span v-if="totalTokens > 0" class="context-info" :class="{ 'context-warning': usagePercent > 80 }">
         {{ formatTokens(totalTokens) }} / {{ formatTokens(contextLength) }} · {{ t('chat.contextRemaining') }} {{ formatTokens(remainingTokens) }}
       </span>
@@ -314,6 +353,26 @@ function isImage(type: string): boolean {
   padding: 0 0 6px;
 }
 
+.auto-play-speech-switch {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 0 8px;
+  border-left: 1px solid $border-light;
+  margin-left: 4px;
+
+  .switch-label {
+    display: flex;
+    align-items: center;
+    color: $text-muted;
+    font-size: 12px;
+
+    svg {
+      opacity: 0.7;
+    }
+  }
+}
+
 .context-info {
   font-size: 11px;
   color: $text-muted;

packages/client/src/components/hermes/chat/MessageItem.vue

@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import type { Message } from "@/stores/hermes/chat";
-import { computed, onBeforeUnmount, ref, watchEffect } from "vue";
+import { computed, onBeforeUnmount, onMounted, ref, watchEffect } from "vue";
 import { useI18n } from "vue-i18n";
 import { useMessage } from "naive-ui";
 import { downloadFile } from "@/api/hermes/download";
@@ -14,6 +14,7 @@ import {
   handleCodeBlockCopyClick,
   renderHighlightedCodeBlock,
 } from "./highlight";
+import { useGlobalSpeech } from "@/composables/useSpeech";
 
 const TOOL_PAYLOAD_DISPLAY_LIMIT = 2000;
 
@@ -27,6 +28,7 @@ const previewUrl = ref<string | null>(null);
 
 const chatStore = useChatStore();
 const settingsStore = useSettingsStore();
+const speech = useGlobalSpeech();
 
 // Copy entire bubble content
 const copyableContent = computed(() => {
@@ -278,6 +280,88 @@ const renderedToolResult = computed(() => {
     toolResultPayload.value.language,
   );
 });
+
+// 语音播放相关
+const canPlaySpeech = computed(() => {
+  // 只有 assistant 消息可以播放，且浏览器支持 Web Speech API
+  return props.message.role === 'assistant' &&
+         speech.isSupported &&
+         copyableContent.value;
+});
+
+const isPlayingThisMessage = computed(() => {
+  return speech.currentMessageId.value === props.message.id && speech.isPlaying.value;
+});
+
+const isPausedThisMessage = computed(() => {
+  return speech.currentMessageId.value === props.message.id && speech.isPaused.value;
+});
+
+function handleSpeechToggle() {
+  if (!canPlaySpeech.value) {
+    console.log('Speech not supported or no content')
+    return
+  }
+  const content = props.message.content || ''
+  console.log('Toggling speech for message:', props.message.id)
+  console.log('Current playing:', speech.currentMessageId.value, speech.isPlaying.value)
+  console.log('Call stack:', new Error().stack)
+
+  // 尝试获取男声语音包
+  const allVoices = speech.getAllVoices()
+  let maleVoice = null
+
+  // 查找可能的男声语音包
+  for (const voice of allVoices) {
+    const name = voice.name.toLowerCase()
+    // 常见男声关键词
+    if (name.includes('male') || name.includes('david') || name.includes('daniel') ||
+        name.includes('mark') || name.includes('yaoyao') || name.includes('google')) {
+      // 优先选择中文男声
+      if (voice.lang.startsWith('zh')) {
+        maleVoice = voice
+        break
+      }
+      // 如果没有找到中文男声，记住第一个男声
+      if (!maleVoice) {
+        maleVoice = voice
+      }
+    }
+  }
+
+  console.log('Selected male voice:', maleVoice?.name, maleVoice?.lang)
+
+  // 快速男声：语速快、音调低
+  speech.toggle(props.message.id, content, {
+    pitch: 0.5,   // 低沉
+    rate: 1.2,    // 快速
+    voice: maleVoice || undefined, // 使用男声，如果没有就用默认
+  })
+}
+
+// 监听自动播放事件
+let autoPlayHandler: ((e: Event) => void) | null = null
+
+onMounted(() => {
+  autoPlayHandler = (e: Event) => {
+    const customEvent = e as CustomEvent<{ messageId: string; content: string }>
+    if (customEvent.detail.messageId === props.message.id && canPlaySpeech.value) {
+      console.log('Auto-play triggered for message:', props.message.id)
+      handleSpeechToggle()
+    }
+  }
+  window.addEventListener('auto-play-speech', autoPlayHandler)
+})
+
+// 组件卸载时停止播放并清理事件监听
+onBeforeUnmount(() => {
+  if (autoPlayHandler) {
+    window.removeEventListener('auto-play-speech', autoPlayHandler)
+  }
+  if (speech.currentMessageId.value === props.message.id) {
+    speech.stop();
+  }
+});
 </script>
 
 <template>
@@ -353,7 +437,7 @@ const renderedToolResult = computed(() => {
           class="msg-avatar"
         />
         <div class="msg-content" :class="message.role">
-          <div class="message-bubble" :class="{ system: isSystem }">
+          <div class="message-bubble" :class="{ system: isSystem, 'speech-playing': isPlayingThisMessage && !isPausedThisMessage }">
             <div v-if="hasAttachments" class="msg-attachments">
               <div
                 v-for="att in message.attachments"
@@ -442,6 +526,21 @@ const renderedToolResult = computed(() => {
             </span>
           </div>
           <div class="message-meta">
+            <button
+              v-if="canPlaySpeech"
+              class="speech-bubble-btn"
+              :class="{ playing: isPlayingThisMessage, paused: isPausedThisMessage }"
+              @click="handleSpeechToggle"
+              :title="isPlayingThisMessage ? (isPausedThisMessage ? t('chat.resumeSpeech') : t('chat.pauseSpeech')) : t('chat.playSpeech')"
+            >
+              <svg v-if="!isPlayingThisMessage || isPausedThisMessage" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                <polygon points="5 3 19 12 5 21 5 3"/>
+              </svg>
+              <svg v-else width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                <rect x="6" y="4" width="4" height="16"/>
+                <rect x="14" y="4" width="4" height="16"/>
+              </svg>
+            </button>
             <button
               v-if="copyableContent"
               class="copy-bubble-btn"
@@ -472,12 +571,15 @@ const renderedToolResult = computed(() => {
 .message {
   display: flex;
   flex-direction: column;
+  position: relative;
 
   &.user {
     align-items: flex-end;
 
     .msg-body {
       max-width: 75%;
+      position: relative;
+      z-index: 1;
     }
 
     .msg-content.user {
@@ -497,6 +599,8 @@ const renderedToolResult = computed(() => {
 
     .msg-body {
       max-width: 80%;
+      position: relative;
+      z-index: 1;
     }
 
     .msg-avatar {
@@ -518,13 +622,6 @@ const renderedToolResult = computed(() => {
 
   &.system {
     align-items: flex-start;
-
-    .message-bubble.system {
-      border-left: 3px solid $warning;
-      border-radius: $radius-sm;
-      max-width: 80%;
-      background-color: rgba(var(--warning-rgb), 0.06);
-    }
   }
 
   &.highlight {
@@ -534,6 +631,18 @@ const renderedToolResult = computed(() => {
   }
 }
 
+@keyframes gradient-flow {
+  0% {
+    background-position: 0% 50%;
+  }
+  50% {
+    background-position: 100% 50%;
+  }
+  100% {
+    background-position: 0% 50%;
+  }
+}
+
 .msg-body {
   display: flex;
   align-items: flex-start;
@@ -554,6 +663,68 @@ const renderedToolResult = computed(() => {
   word-break: break-word;
   border-radius: 10px;
   max-width: 100%;
+  position: relative;
+  box-sizing: border-box;
+
+  &.system {
+    border-left: 3px solid $warning;
+    border-radius: $radius-sm;
+    max-width: 80%;
+    background-color: rgba(var(--warning-rgb), 0.06);
+  }
+
+  &.speech-playing {
+    box-shadow:
+      0 0 0 2px #ff6b6b,
+      0 0 10px rgba(255, 107, 107, 0.4),
+      0 0 20px rgba(255, 107, 107, 0.2);
+    animation: rainbow-glow 4s linear infinite;
+  }
+}
+
+@keyframes rainbow-glow {
+  0% {
+    box-shadow:
+      0 0 0 2px #ff6b6b,
+      0 0 10px rgba(255, 107, 107, 0.4),
+      0 0 20px rgba(255, 107, 107, 0.2);
+  }
+  16.66% {
+    box-shadow:
+      0 0 0 2px #feca57,
+      0 0 10px rgba(254, 202, 87, 0.4),
+      0 0 20px rgba(254, 202, 87, 0.2);
+  }
+  33.33% {
+    box-shadow:
+      0 0 0 2px #48dbfb,
+      0 0 10px rgba(72, 219, 251, 0.4),
+      0 0 20px rgba(72, 219, 251, 0.2);
+  }
+  50% {
+    box-shadow:
+      0 0 0 2px #ff9ff3,
+      0 0 10px rgba(255, 159, 243, 0.4),
+      0 0 20px rgba(255, 159, 243, 0.2);
+  }
+  66.66% {
+    box-shadow:
+      0 0 0 2px #54a0ff,
+      0 0 10px rgba(84, 160, 255, 0.4),
+      0 0 20px rgba(84, 160, 255, 0.2);
+  }
+  83.33% {
+    box-shadow:
+      0 0 0 2px #5f27cd,
+      0 0 10px rgba(95, 39, 205, 0.4),
+      0 0 20px rgba(95, 39, 205, 0.2);
+  }
+  100% {
+    box-shadow:
+      0 0 0 2px #ff6b6b,
+      0 0 10px rgba(255, 107, 107, 0.4),
+      0 0 20px rgba(255, 107, 107, 0.2);
+  }
 }
 
 .msg-attachments {
@@ -673,9 +844,15 @@ const renderedToolResult = computed(() => {
   .message:hover & {
     opacity: 1;
   }
+
+  // 移动端一直显示按钮
+  @media (max-width: 768px) {
+    opacity: 1;
+  }
 }
 
-.copy-bubble-btn {
+.copy-bubble-btn,
+.speech-bubble-btn {
   display: flex;
   align-items: center;
   justify-content: center;
@@ -699,11 +876,32 @@ const renderedToolResult = computed(() => {
 
     &:hover {
       color: #cccccc;
-      background: rgba(255, 255, 255, 0.08);
+      background: rgba(255, 255, 255, 0.1);
     }
   }
 }
 
+.speech-bubble-btn {
+  &.playing {
+    color: var(--accent-primary);
+    animation: pulse 1.5s ease-in-out infinite;
+
+    &.paused {
+      animation: none;
+      opacity: 0.6;
+    }
+  }
+}
+
+@keyframes pulse {
+  0%, 100% {
+    opacity: 1;
+  }
+  50% {
+    opacity: 0.5;
+  }
+}
+
 .message-time {
   font-size: 11px;
   color: $text-muted;

packages/client/src/composables/useSpeech.ts

@@ -0,0 +1,281 @@
+import { ref, computed, onUnmounted } from 'vue'
+
+export interface SpeechOptions {
+  rate?: number      // 语速 0.1-10，默认 1
+  pitch?: number     // 音调 0-2，默认 1
+  volume?: number    // 音量 0-1，默认 1
+  voice?: SpeechSynthesisVoice | null
+  lang?: string      // 语言 'zh-CN', 'en-US' 等
+}
+
+export interface SpeechState {
+  isPlaying: boolean
+  isPaused: boolean
+  currentMessageId: string | null
+  progress: number  // 当前进度（字符数）
+}
+
+/**
+ * Web Speech API 语音播放 Composable
+ */
+export function useSpeech() {
+  const synth = window.speechSynthesis
+  const availableVoices = ref<SpeechSynthesisVoice[]>([])
+  const state = ref<SpeechState>({
+    isPlaying: false,
+    isPaused: false,
+    currentMessageId: null,
+    progress: 0,
+  })
+
+  let utterance: SpeechSynthesisUtterance | null = null
+  let currentText = ''
+
+  // 加载可用语音列表
+  function loadVoices() {
+    availableVoices.value = synth.getVoices()
+  }
+
+  // 浏览器会在语音列表变化时触发 voiceschanged 事件
+  synth.addEventListener('voiceschanged', loadVoices)
+  loadVoices() // 初始加载
+
+  /**
+   * 从文本中提取纯文本内容，过滤代码块、thinking 标签等
+   */
+  function extractReadableText(content: string): string {
+    if (!content) return ''
+
+    let text = content
+
+    // 移除 thinking 标签内容
+    text = text.replace(/<thinking[^>]*>[\s\S]*?<\/thinking>/gi, '')
+    text = text.replace(/<thinking[^>]*>[\s\S]*/gi, '')
+
+    // 移除代码块
+    text = text.replace(/```[\s\S]*?```/g, '')
+    text = text.replace(/`[^`]+`/g, '')
+
+    // 移除 HTML 标签
+    text = text.replace(/<[^>]+>/g, '')
+
+    // 移除多余的空白
+    text = text.replace(/\s+/g, ' ').trim()
+
+    return text
+  }
+
+  /**
+   * 检查浏览器是否支持 Web Speech API
+   */
+  const isSupported = computed(() => {
+    return 'speechSynthesis' in window && 'SpeechSynthesisUtterance' in window
+  })
+
+  /**
+   * 获取默认语音（优先选择中文）
+   */
+  function getDefaultVoice(): SpeechSynthesisVoice | null {
+    const voices = availableVoices.value
+    if (voices.length === 0) return null
+
+    // 优先选择中文语音
+    const zhVoice = voices.find(v => v.lang.startsWith('zh'))
+    if (zhVoice) return zhVoice
+
+    // 其次选择英文语音
+    const enVoice = voices.find(v => v.lang.startsWith('en'))
+    if (enVoice) return enVoice
+
+    // 默认第一个
+    return voices[0]
+  }
+
+  /**
+   * 获取所有可用语音（用于调试）
+   */
+  function getAllVoices(): SpeechSynthesisVoice[] {
+    return availableVoices.value
+  }
+
+  /**
+   * 停止当前播放
+   */
+  function stop() {
+    if (synth.speaking) {
+      synth.cancel()
+    }
+    if (utterance) {
+      utterance = null
+    }
+    state.value = {
+      isPlaying: false,
+      isPaused: false,
+      currentMessageId: null,
+      progress: 0,
+    }
+    currentText = ''
+  }
+
+  /**
+   * 播放文本
+   */
+  function play(messageId: string, content: string, options: SpeechOptions = {}) {
+    if (!isSupported.value) {
+      console.warn('[useSpeech] Speech synthesis not supported')
+      return
+    }
+
+    console.log('[useSpeech] play called:', messageId)
+
+    // 如果正在播放其他消息，先停止
+    if (state.value.currentMessageId && state.value.currentMessageId !== messageId) {
+      stop()
+    }
+
+    // 如果已经在播放这条消息，暂停/恢复
+    if (state.value.currentMessageId === messageId) {
+      if (state.value.isPaused) {
+        resume()
+      } else if (state.value.isPlaying) {
+        pause()
+      }
+      return
+    }
+
+    // 提取可读文本
+    const text = extractReadableText(content)
+    if (!text) {
+      console.warn('[useSpeech] No readable text found')
+      return
+    }
+
+    console.log('[useSpeech] Playing text:', text.substring(0, 50) + '...')
+
+    // 停止当前播放
+    stop()
+
+    // 创建新的 utterance
+    utterance = new SpeechSynthesisUtterance(text)
+    currentText = text
+
+    // 设置语音参数
+    utterance.rate = options.rate ?? 1
+    utterance.pitch = options.pitch ?? 1
+    utterance.volume = options.volume ?? 1
+    utterance.voice = options.voice ?? getDefaultVoice()
+
+    console.log('[useSpeech] Selected voice:', utterance.voice?.name, utterance.voice?.lang)
+
+    if (options.lang) {
+      utterance.lang = options.lang
+    } else if (utterance.voice) {
+      utterance.lang = utterance.voice.lang
+    }
+
+    // 事件监听
+    utterance.onstart = () => {
+      console.log('[useSpeech] onstart fired')
+      state.value.isPlaying = true
+      state.value.isPaused = false
+      state.value.currentMessageId = messageId
+      state.value.progress = 0
+    }
+
+    utterance.onboundary = (event) => {
+      if (event.name === 'word') {
+        state.value.progress = event.charIndex
+      }
+    }
+
+    utterance.onend = () => {
+      console.log('[useSpeech] onend fired')
+      state.value.isPlaying = false
+      state.value.isPaused = false
+      state.value.currentMessageId = null
+      state.value.progress = currentText.length
+    }
+
+    utterance.onerror = (event) => {
+      console.error('[useSpeech] Speech synthesis error:', event.error)
+      state.value.isPlaying = false
+      state.value.isPaused = false
+      state.value.currentMessageId = null
+    }
+
+    // 开始播放
+    console.log('[useSpeech] Calling synth.speak()')
+    synth.speak(utterance)
+  }
+
+  /**
+   * 暂停播放
+   */
+  function pause() {
+    if (synth.speaking && !state.value.isPaused) {
+      synth.pause()
+      state.value.isPaused = true
+    }
+  }
+
+  /**
+   * 恢复播放
+   */
+  function resume() {
+    if (state.value.isPaused) {
+      synth.resume()
+      state.value.isPaused = false
+    }
+  }
+
+  /**
+   * 切换播放/暂停
+   */
+  function toggle(messageId: string, content: string, options: SpeechOptions = {}) {
+    if (state.value.currentMessageId === messageId && state.value.isPlaying) {
+      if (state.value.isPaused) {
+        resume()
+      } else {
+        pause()
+      }
+    } else {
+      play(messageId, content, options)
+    }
+  }
+
+  // 清理
+  onUnmounted(() => {
+    stop()
+    synth.removeEventListener('voiceschanged', loadVoices)
+  })
+
+  return {
+    // 状态
+    isSupported,
+    availableVoices,
+    isPlaying: computed(() => state.value.isPlaying),
+    isPaused: computed(() => state.value.isPaused),
+    currentMessageId: computed(() => state.value.currentMessageId),
+    progress: computed(() => state.value.progress),
+
+    // 方法
+    play,
+    pause,
+    resume,
+    stop,
+    toggle,
+    getDefaultVoice,
+    getAllVoices,
+    extractReadableText,
+  }
+}
+
+// 单例模式，全局共享一个语音实例
+let globalSpeech: ReturnType<typeof useSpeech> | null = null
+
+export function useGlobalSpeech() {
+  if (!globalSpeech) {
+    globalSpeech = useSpeech()
+  }
+  return globalSpeech
+}

packages/client/src/i18n/locales/de.ts

@@ -147,6 +147,11 @@ export default {
     copyBubble: 'Nachricht kopieren',
     copiedBubble: 'Nachricht kopiert',
     copyFailed: 'Kopieren fehlgeschlagen',
+    playSpeech: 'Sprache abspielen',
+    pauseSpeech: 'Pause',
+    resumeSpeech: 'Fortsetzen',
+    stopSpeech: 'Stoppen',
+    speechNotSupported: 'Sprachwiedergabe in diesem Browser nicht unterstützt',
   },
 
   // Jobs

packages/client/src/i18n/locales/en.ts

@@ -111,6 +111,7 @@ export default {
     emptyState: 'Start a conversation with Hermes Agent',
     inputPlaceholder: 'Type a message... (Enter to send, Shift+Enter for new line)',
     attachFiles: 'Attach files',
+    autoPlaySpeech: 'Auto-play voice',
     stop: 'Stop',
     start: 'Start',
     stopGateway: 'Stop Gateway',
@@ -176,6 +177,11 @@ export default {
     copyBubble: 'Copy message',
     copiedBubble: 'Message copied',
     copyFailed: 'Copy failed',
+    playSpeech: 'Play voice',
+    pauseSpeech: 'Pause',
+    resumeSpeech: 'Resume',
+    stopSpeech: 'Stop',
+    speechNotSupported: 'Voice playback not supported in this browser',
   },
 
   // Jobs

packages/client/src/i18n/locales/es.ts

@@ -147,6 +147,11 @@ export default {
     copyBubble: 'Copiar mensaje',
     copiedBubble: 'Mensaje copiado',
     copyFailed: 'Error al copiar',
+    playSpeech: 'Reproducir voz',
+    pauseSpeech: 'Pausa',
+    resumeSpeech: 'Reanudar',
+    stopSpeech: 'Detener',
+    speechNotSupported: 'Reproducción de voz no soportada en este navegador',
   },
 
   // Jobs

packages/client/src/i18n/locales/fr.ts

@@ -147,6 +147,11 @@ export default {
     copyBubble: 'Copier le message',
     copiedBubble: 'Message copié',
     copyFailed: 'Échec de la copie',
+    playSpeech: 'Lire à voix haute',
+    pauseSpeech: 'Pause',
+    resumeSpeech: 'Reprendre',
+    stopSpeech: 'Arrêter',
+    speechNotSupported: 'Reproduction vocale non prise en charge dans ce navigateur',
   },
 
   // Jobs

packages/client/src/i18n/locales/ja.ts

@@ -147,6 +147,11 @@ export default {
     copyBubble: 'メッセージをコピー',
     copiedBubble: 'コピーしました',
     copyFailed: 'コピーに失敗しました',
+    playSpeech: '音声を読み上げ',
+    pauseSpeech: '一時停止',
+    resumeSpeech: '再開',
+    stopSpeech: '停止',
+    speechNotSupported: 'このブラウザは音声読み上げをサポートしていません',
   },
 
   // スケジュールジョブ

packages/client/src/i18n/locales/ko.ts

@@ -147,6 +147,11 @@ export default {
     copyBubble: '메시지 복사',
     copiedBubble: '복사됨',
     copyFailed: '복사 실패',
+    playSpeech: '음성 재생',
+    pauseSpeech: '일시정지',
+    resumeSpeech: '재개',
+    stopSpeech: '중지',
+    speechNotSupported: '이 브라우저는 음성 재생을 지원하지 않습니다',
   },
 
   // 예약 작업

packages/client/src/i18n/locales/pt.ts

@@ -147,6 +147,11 @@ export default {
     copyBubble: 'Copiar mensagem',
     copiedBubble: 'Mensagem copiada',
     copyFailed: 'Falha ao copiar',
+    playSpeech: 'Reproduzir voz',
+    pauseSpeech: 'Pausar',
+    resumeSpeech: 'Retomar',
+    stopSpeech: 'Parar',
+    speechNotSupported: 'Reprodução de voz não suportada neste navegador',
   },
 
   // Jobs

packages/client/src/i18n/locales/zh.ts

@@ -111,6 +111,7 @@ export default {
     emptyState: '开始与 Hermes Agent 对话',
     inputPlaceholder: '输入消息... (Enter 发送，Shift+Enter 换行)',
     attachFiles: '添加附件',
+    autoPlaySpeech: '自动播放语音',
     stop: '停止',
     start: '启动',
     stopGateway: '停止网关',
@@ -176,6 +177,11 @@ export default {
     copyBubble: '复制消息',
     copiedBubble: '已复制',
     copyFailed: '复制失败',
+    playSpeech: '播放语音',
+    pauseSpeech: '暂停',
+    resumeSpeech: '继续',
+    stopSpeech: '停止',
+    speechNotSupported: '此浏览器不支持语音播放',
   },
 
   // 定时任务

packages/client/src/stores/hermes/chat.ts

@@ -300,6 +300,13 @@ export const useChatStore = defineStore('chat', () => {
   const streamStates = ref<Map<string, { abort: () => void }>>(new Map())
   /** sessionId → server-reported isWorking status */
   const serverWorking = ref<Set<string>>(new Set())
+
+  // 自动播放语音开关
+  const autoPlaySpeechEnabled = ref(false)
+
+  function setAutoPlaySpeech(enabled: boolean) {
+    autoPlaySpeechEnabled.value = enabled
+  }
   const isStreaming = computed(() => {
     const sid = activeSessionId.value
     if (sid == null) return false
@@ -871,6 +878,19 @@ export const useChatStore = defineStore('chat', () => {
                 })
               }
 
+              // 自动播放语音
+              console.log('[run.completed] autoPlaySpeechEnabled:', autoPlaySpeechEnabled.value)
+              if (autoPlaySpeechEnabled.value) {
+                const msgs = getSessionMsgs(sid)
+                const lastAssistant = [...msgs].reverse().find(m => m.role === 'assistant')
+                if (lastAssistant?.content) {
+                  // 延迟一小会儿再播放，确保 UI 更新完成
+                  setTimeout(() => {
+                    playMessageSpeech(lastAssistant.id, lastAssistant.content)
+                  }, 300)
+                }
+              }
+
               cleanup()
               updateSessionTitle(sid)
               // the in-flight marker. If the browser is reloading right now
@@ -1342,6 +1362,15 @@ export const useChatStore = defineStore('chat', () => {
     thinkingObservation.clear()
   }
 
+  // 播放消息语音
+  function playMessageSpeech(messageId: string, content: string) {
+    // 触发自定义事件，让 MessageItem 组件处理播放
+    const event = new CustomEvent('auto-play-speech', {
+      detail: { messageId, content }
+    })
+    window.dispatchEvent(event)
+  }
+
   return {
     sessions,
     activeSessionId,
@@ -1371,5 +1400,7 @@ export const useChatStore = defineStore('chat', () => {
     noteReasoningStart,
     noteReasoningEnd,
     clearThinkingObservationFor,
+    setAutoPlaySpeech,
+    playMessageSpeech,
   }
 })