diff --git a/app/shared/src/chatview/components/ChatViewTranscript.tsx b/app/shared/src/chatview/components/ChatViewTranscript.tsx
index b07b2de65..b4f16b363 100644
--- a/app/shared/src/chatview/components/ChatViewTranscript.tsx
+++ b/app/shared/src/chatview/components/ChatViewTranscript.tsx
@@ -290,7 +290,7 @@ export const ChatViewTranscript = memo(function ChatViewTranscript({ transcript,
                 <span>{pinnedAnnouncement.content}</span>
               </div>
               <div className="chatview-pinned-meta">
-                由 <a>{pinnedAnnouncement.author ?? '系统'}</a> 置顶
+                {t('pinnedAnnouncement.meta', { author: pinnedAnnouncement.author ?? t('pinnedAnnouncement.systemAuthor') })}
                 {pinnedAnnouncement.time && <span className="chatview-pinned-time">{pinnedAnnouncement.time}</span>}
               </div>
             </div>
diff --git a/app/shared/src/chatview/components/CompactDivider.tsx b/app/shared/src/chatview/components/CompactDivider.tsx
index 11f2ce870..a3471031d 100644
--- a/app/shared/src/chatview/components/CompactDivider.tsx
+++ b/app/shared/src/chatview/components/CompactDivider.tsx
@@ -5,6 +5,8 @@
    ══════════════════════════════════════════════════════════════════════ */
 
 import React, { memo } from 'react'
+import { useTranslation } from 'react-i18next'
+import { CHATVIEW_I18N_NAMESPACE } from '../i18n/resources'
 
 interface CompactDividerProps {
   /** Compaction trigger, e.g. "auto" or "manual". */
@@ -20,9 +22,10 @@ function formatPreTokens(n: number): string {
 
 /** Render a compact-boundary divider between transcript message groups. */
 export const CompactDivider = memo(function CompactDivider({ trigger, preTokens }: CompactDividerProps) {
-  const parts: string[] = ['上下文已压缩']
-  if (trigger === 'auto') parts.push('(自动)')
-  if (preTokens != null) parts.push(`${formatPreTokens(preTokens)} tokens 前`)
+  const { t } = useTranslation(CHATVIEW_I18N_NAMESPACE)
+  const parts: string[] = [t('compactDivider.label')]
+  if (trigger === 'auto') parts.push(t('compactDivider.auto'))
+  if (preTokens != null) parts.push(t('compactDivider.tokensAgo', { tokens: formatPreTokens(preTokens) }))
 
   const label = parts.join(' ')
 
diff --git a/app/shared/src/chatview/i18n/resources.ts b/app/shared/src/chatview/i18n/resources.ts
index 97cb258cc..8874b6829 100644
--- a/app/shared/src/chatview/i18n/resources.ts
+++ b/app/shared/src/chatview/i18n/resources.ts
@@ -140,6 +140,21 @@ export const chatviewResources = {
     'inlineDelegation.status.done': '完成 ✓',
     'inlineDelegation.status.failed': '失败 ✗',
     'inlineDelegation.status.cancelled': '已取消',
+    // ── CompactDivider ──
+    'compactDivider.label': '上下文已压缩',
+    'compactDivider.auto': '(自动)',
+    'compactDivider.tokensAgo': '压缩前 {{tokens}} tokens',
+    // ── AgentStreamingBar ──
+    'agentStreaming.status.dispatching': '调度中…',
+    'agentStreaming.status.thinking': '思考中…',
+    'agentStreaming.status.streaming': '输出中…',
+    'agentStreaming.status.done': '完成',
+    'agentStreaming.status.failed': '失败',
+    'agentStreaming.toolCalls': '{{count}} 次工具调用',
+    'agentStreaming.multiAgent': '{{count}} 个 Agent 运行中',
+    // ── Pinned announcement ──
+    'pinnedAnnouncement.meta': '由 {{author}} 置顶',
+    'pinnedAnnouncement.systemAuthor': '系统',
     'card.fail.retry': '重试',
     'card.expand': '展开',
     'card.collapse': '收起',
@@ -718,6 +733,23 @@ export const chatviewResources = {
     'inlineDelegation.status.done': 'Done ✓',
     'inlineDelegation.status.failed': 'Failed ✗',
     'inlineDelegation.status.cancelled': 'Cancelled',
+    // ── CompactDivider ──
+    'compactDivider.label': 'Context compressed',
+    'compactDivider.auto': '(auto)',
+    'compactDivider.tokensAgo': '{{tokens}} tokens before compaction',
+    // ── AgentStreamingBar ──
+    'agentStreaming.status.dispatching': 'Dispatching…',
+    'agentStreaming.status.thinking': 'Thinking…',
+    'agentStreaming.status.streaming': 'Streaming…',
+    'agentStreaming.status.done': 'Done',
+    'agentStreaming.status.failed': 'Failed',
+    'agentStreaming.toolCalls_one': '{{count}} tool call',
+    'agentStreaming.toolCalls_other': '{{count}} tool calls',
+    'agentStreaming.multiAgent_one': '{{count}} agent running',
+    'agentStreaming.multiAgent_other': '{{count}} agents running',
+    // ── Pinned announcement ──
+    'pinnedAnnouncement.meta': 'Pinned by {{author}}',
+    'pinnedAnnouncement.systemAuthor': 'System',
     'card.fail.retry': 'Retry',
     'card.expand': 'Expand',
     'card.collapse': 'Collapse',
diff --git a/app/shared/src/ui/AgentStreamingBar.test.tsx b/app/shared/src/ui/AgentStreamingBar.test.tsx
index b03546953..45f3d57c9 100644
--- a/app/shared/src/ui/AgentStreamingBar.test.tsx
+++ b/app/shared/src/ui/AgentStreamingBar.test.tsx
@@ -1,8 +1,17 @@
 import React from 'react';
-import { describe, it, expect, afterEach } from 'vitest';
+import { describe, it, expect, afterEach, afterAll, beforeAll } from 'vitest';
 import { render } from '@testing-library/react';
 import { AgentStreamingBar } from './AgentStreamingBar';
 import { getAgentActivityStore } from '../transcript/agentActivity';
+import { useTestI18nLanguage, TEST_I18N_DEFAULT_LNG } from '../testing/i18n';
+
+beforeAll(async () => {
+  await useTestI18nLanguage('zh');
+});
+
+afterAll(async () => {
+  await useTestI18nLanguage(TEST_I18N_DEFAULT_LNG);
+});
 
 afterEach(() => {
   getAgentActivityStore().reset();
diff --git a/app/shared/src/ui/AgentStreamingBar.tsx b/app/shared/src/ui/AgentStreamingBar.tsx
index 680da2dcf..161ff2657 100644
--- a/app/shared/src/ui/AgentStreamingBar.tsx
+++ b/app/shared/src/ui/AgentStreamingBar.tsx
@@ -1,9 +1,11 @@
 import React, { useSyncExternalStore } from 'react';
+import { useTranslation } from 'react-i18next';
 import {
   getAgentActivityStore,
   type AgentActivitySnapshot,
   type AgentActivityStatus,
 } from '../transcript/agentActivity';
+import { CHATVIEW_I18N_NAMESPACE } from '../chatview/i18n/resources';
 import styles from './AgentStreamingBar.module.css';
 
 // ── Status icons ──────────────────────────────────────────────────────────
@@ -16,6 +18,14 @@ const STATUS_ICON: Record<AgentActivityStatus, string> = {
   failed: '\u{274C}',
 };
 
+const STATUS_LABEL_KEY: Record<AgentActivityStatus, string> = {
+  dispatching: 'agentStreaming.status.dispatching',
+  thinking: 'agentStreaming.status.thinking',
+  streaming: 'agentStreaming.status.streaming',
+  done: 'agentStreaming.status.done',
+  failed: 'agentStreaming.status.failed',
+};
+
 // ── Store binding ─────────────────────────────────────────────────────────
 
 const emptySnapshot: AgentActivitySnapshot = { activeAgents: [] };
@@ -44,6 +54,7 @@ export interface AgentStreamingBarProps {
  * Hidden when no agents are active. Uses `useSyncExternalStore` for reactivity.
  */
 export function AgentStreamingBar({ className }: AgentStreamingBarProps): React.ReactElement | null {
+  const { t } = useTranslation(CHATVIEW_I18N_NAMESPACE);
   const snapshot = useSyncExternalStore(subscribe, getSnapshot, getServerSnapshot);
 
   const agents = snapshot.activeAgents;
@@ -58,7 +69,7 @@ export function AgentStreamingBar({ className }: AgentStreamingBarProps): React.
   // No real progress percentage exists for agent runs, so surface the one
   // quantitative signal we do have: the number of tool calls.
   const totalToolCalls = agents.reduce((sum, a) => sum + (a.toolCalls ?? 0), 0);
-  const toolCallsLabel = totalToolCalls > 0 ? ` · ${totalToolCalls} 次工具调用` : '';
+  const toolCallsLabel = totalToolCalls > 0 ? ` · ${t('agentStreaming.toolCalls', { count: totalToolCalls })}` : '';
 
   return (
     <div className={`${styles.bar} ${className ?? ''}`} role="status" aria-live="polite">
@@ -67,14 +78,14 @@ export function AgentStreamingBar({ className }: AgentStreamingBarProps): React.
           <span className={`${styles.icon} ${isActive(agents[0]!.status) ? styles.iconPulse : ''}`} aria-hidden="true">{STATUS_ICON[agents[0]!.status]}</span>
           <span className={styles.name}>{agents[0]!.name}</span>
           <span className={`${styles.status} ${statusClassName(agents[0]!.status)}`}>
-            {statusLabel(agents[0]!.status)}
+            {t(STATUS_LABEL_KEY[agents[0]!.status])}
             {toolCallsLabel}
           </span>
         </div>
       ) : (
         <div className={styles.agent}>
           <span className={`${styles.icon} ${styles.iconPulse}`} aria-hidden="true">{'\u{1F916}'}</span>
-          <span className={styles.name}>{activeCount} 个 Agent 运行中{toolCallsLabel}</span>
+          <span className={styles.name}>{t('agentStreaming.multiAgent', { count: activeCount })}{toolCallsLabel}</span>
           <span className={styles.detail}>
             {agents.map((a) => STATUS_ICON[a.status]).join(' ')}
           </span>
@@ -86,16 +97,6 @@ export function AgentStreamingBar({ className }: AgentStreamingBarProps): React.
 
 // ── Helpers ───────────────────────────────────────────────────────────────
 
-function statusLabel(status: AgentActivityStatus): string {
-  switch (status) {
-    case 'dispatching': return '调度中…';
-    case 'thinking': return '思考中…';
-    case 'streaming': return '输出中…';
-    case 'done': return '完成';
-    case 'failed': return '失败';
-  }
-}
-
 function statusClassName(status: AgentActivityStatus): string {
   switch (status) {
     case 'streaming': return styles.statusStreaming ?? '';