diff --git a/packages/ui/src/components/ui/MemoryDebugPanel.tsx b/packages/ui/src/components/ui/MemoryDebugPanel.tsx
index 89e2c449..901d8f80 100644
--- a/packages/ui/src/components/ui/MemoryDebugPanel.tsx
+++ b/packages/ui/src/components/ui/MemoryDebugPanel.tsx
@@ -149,22 +149,43 @@ export const DebugPanel: React.FC<DebugPanelProps> = ({ onClose }) => {
     return () => window.clearTimeout(timeoutId);
   }, [copyState]);
 
-  const totalMessages = React.useMemo(() => {
+  const messageRoleCounts = React.useMemo(() => {
+    let assistant = 0;
     let total = 0;
+    let user = 0;
     for (const sessionId of Object.keys(messageRecord)) {
-      total += messageRecord[sessionId]?.length ?? 0;
+      const messages = messageRecord[sessionId] ?? [];
+      total += messages.length;
+      for (const message of messages) {
+        if (message.role === 'user') {
+          user += 1;
+        } else if (message.role === 'assistant') {
+          assistant += 1;
+        }
+      }
     }
-    return total;
+    return { assistant, total, user };
   }, [messageRecord]);
 
   const sessionStats = React.useMemo(() => {
     return sessions.map(session => {
-      const messageCount = messageRecord[session.id]?.length || 0;
+      const messages = messageRecord[session.id] ?? [];
+      let assistantMessageCount = 0;
+      let userMessageCount = 0;
+      for (const message of messages) {
+        if (message.role === 'user') {
+          userMessageCount += 1;
+        } else if (message.role === 'assistant') {
+          assistantMessageCount += 1;
+        }
+      }
       const memoryState = sessionMemoryState.get(session.id);
       return {
         id: session.id,
         title: session.title || t('memoryDebugPanel.common.untitled'),
-        messageCount,
+        assistantMessageCount,
+        messageCount: messages.length,
+        userMessageCount,
         isStreaming: memoryState?.isStreaming || false,
         isZombie: memoryState?.isZombie || false,
         backgroundCount: memoryState?.backgroundMessageCount || 0,
@@ -256,8 +277,10 @@ export const DebugPanel: React.FC<DebugPanelProps> = ({ onClose }) => {
       {activeTab === 'memory' ? (
         <div className="space-y-3">
           <div className="grid grid-cols-2 gap-2 typography-meta">
-            <MetricCard label={t('memoryDebugPanel.metric.totalMessages')} value={totalMessages} />
+            <MetricCard label={t('memoryDebugPanel.metric.totalMessages')} value={messageRoleCounts.total} />
             <MetricCard label={t('memoryDebugPanel.metric.cachedSessions')} value={`${cachedSessionCount} / ${MEMORY_LIMITS.MAX_SESSIONS}`} />
+            <MetricCard label={t('memoryDebugPanel.metric.userMessages')} value={messageRoleCounts.user} />
+            <MetricCard label={t('memoryDebugPanel.metric.assistantMessages')} value={messageRoleCounts.assistant} />
           </div>
 
           <div className="typography-meta space-y-1 border-t border-[var(--interactive-border)] pt-2">
@@ -294,6 +317,12 @@ export const DebugPanel: React.FC<DebugPanelProps> = ({ onClose }) => {
                     {stat.isZombie ? <span className="text-[var(--status-warning)]">!</span> : null}
                   </div>
                   <div className="flex items-center gap-2">
+                    <span className="font-mono text-[var(--surface-muted-foreground)]">
+                      {t('memoryDebugPanel.metric.roleMsgsValue', {
+                        assistant: stat.assistantMessageCount,
+                        user: stat.userMessageCount,
+                      })}
+                    </span>
                     <span className="font-mono text-[var(--surface-foreground)]">
                       {t('memoryDebugPanel.metric.msgsValue', { count: stat.messageCount })}
                     </span>
@@ -318,6 +347,14 @@ export const DebugPanel: React.FC<DebugPanelProps> = ({ onClose }) => {
                       sessions: sessions.map(s => ({ id: s.id, title: s.title })),
                       currentSessionId,
                       cachedSessions: Object.keys(messageRecord),
+                      messageRoleCounts,
+                      sessionMessageRoleCounts: sessionStats.map(stat => ({
+                        id: stat.id,
+                        title: stat.title,
+                        total: stat.messageCount,
+                        user: stat.userMessageCount,
+                        assistant: stat.assistantMessageCount,
+                      })),
                       memoryStates: Object.fromEntries(sessionMemoryState),
                     });
                   }}
diff --git a/packages/ui/src/lib/i18n/messages/en.ts b/packages/ui/src/lib/i18n/messages/en.ts
index a1dd5582..2fc5149a 100644
--- a/packages/ui/src/lib/i18n/messages/en.ts
+++ b/packages/ui/src/lib/i18n/messages/en.ts
@@ -2505,6 +2505,8 @@ export const dict = {
   'memoryDebugPanel.section.noVscodeSamples': 'No VS Code bridge samples yet.',
   'memoryDebugPanel.metric.totalMessages': 'Total Messages',
   'memoryDebugPanel.metric.cachedSessions': 'Cached Sessions',
+  'memoryDebugPanel.metric.userMessages': 'User Messages',
+  'memoryDebugPanel.metric.assistantMessages': 'Assistant Messages',
   'memoryDebugPanel.metric.viewportWindow': 'Viewport Window',
   'memoryDebugPanel.metric.zombieTimeout': 'Zombie Timeout',
   'memoryDebugPanel.metric.githubTotalRequests': 'GitHub Total Requests',
@@ -2522,6 +2524,7 @@ export const dict = {
   'memoryDebugPanel.metric.messagesValue': '{count} messages',
   'memoryDebugPanel.metric.minutesValue': '{count} minutes',
   'memoryDebugPanel.metric.msgsValue': '{count} msgs',
+  'memoryDebugPanel.metric.roleMsgsValue': 'U {user} / A {assistant}',
   'memoryDebugPanel.metric.countValue': 'count {value}',
   'memoryDebugPanel.metric.avgValue': 'avg {value}',
   'memoryDebugPanel.metric.maxValue': 'max {value}',
diff --git a/packages/ui/src/lib/i18n/messages/es.ts b/packages/ui/src/lib/i18n/messages/es.ts
index 764db8dc..4c02bf62 100644
--- a/packages/ui/src/lib/i18n/messages/es.ts
+++ b/packages/ui/src/lib/i18n/messages/es.ts
@@ -2471,6 +2471,8 @@ export const dict: Record<I18nKey, string> = {
   "memoryDebugPanel.section.noVscodeSamples": "No hay muestras de puente VS Code aún.",
   "memoryDebugPanel.metric.totalMessages": "Mensajes totales",
   "memoryDebugPanel.metric.cachedSessions": "Sesiones en caché",
+  "memoryDebugPanel.metric.userMessages": "Mensajes del usuario",
+  "memoryDebugPanel.metric.assistantMessages": "Mensajes del asistente",
   "memoryDebugPanel.metric.viewportWindow": "Ventana de visualización",
   "memoryDebugPanel.metric.zombieTimeout": "Timeout zombie",
   "memoryDebugPanel.metric.githubTotalRequests": "Solicitudes totales de GitHub",
@@ -2488,6 +2490,7 @@ export const dict: Record<I18nKey, string> = {
   "memoryDebugPanel.metric.messagesValue": "{count} mensajes",
   "memoryDebugPanel.metric.minutesValue": "{count} minutos",
   "memoryDebugPanel.metric.msgsValue": "{count} mensajes",
+  "memoryDebugPanel.metric.roleMsgsValue": "U {user} / A {assistant}",
   "memoryDebugPanel.metric.countValue": "conteo {value}",
   "memoryDebugPanel.metric.avgValue": "prom. {value}",
   "memoryDebugPanel.metric.maxValue": "máx. {value}",
diff --git a/packages/ui/src/lib/i18n/messages/fr.ts b/packages/ui/src/lib/i18n/messages/fr.ts
index c1530922..aad37117 100644
--- a/packages/ui/src/lib/i18n/messages/fr.ts
+++ b/packages/ui/src/lib/i18n/messages/fr.ts
@@ -2315,6 +2315,8 @@ export const dict = {
   'memoryDebugPanel.section.noVscodeSamples': 'Aucun échantillon de pont VS Code pour l\'instant.',
   'memoryDebugPanel.metric.totalMessages': 'Nombre total de messages',
   'memoryDebugPanel.metric.cachedSessions': 'Sessions mises en cache',
+  'memoryDebugPanel.metric.userMessages': 'Messages utilisateur',
+  'memoryDebugPanel.metric.assistantMessages': 'Messages assistant',
   'memoryDebugPanel.metric.viewportWindow': 'Fenêtre d\'affichage',
   'memoryDebugPanel.metric.zombieTimeout': 'Délai d\'attente des zombies',
   'memoryDebugPanel.metric.githubTotalRequests': 'GitHub Total des demandes',
@@ -2332,6 +2334,7 @@ export const dict = {
   'memoryDebugPanel.metric.messagesValue': 'Messages {count}',
   'memoryDebugPanel.metric.minutesValue': 'Minutes {count}',
   'memoryDebugPanel.metric.msgsValue': 'Messages {count}',
+  'memoryDebugPanel.metric.roleMsgsValue': 'U {user} / A {assistant}',
   'memoryDebugPanel.metric.countValue': 'compter {value}',
   'memoryDebugPanel.metric.avgValue': 'moyenne {value}',
   'memoryDebugPanel.metric.maxValue': 'maximum {value}',
diff --git a/packages/ui/src/lib/i18n/messages/ko.ts b/packages/ui/src/lib/i18n/messages/ko.ts
index 0dac5ae8..d6681225 100644
--- a/packages/ui/src/lib/i18n/messages/ko.ts
+++ b/packages/ui/src/lib/i18n/messages/ko.ts
@@ -2505,6 +2505,8 @@ export const dict: Record<I18nKey, string> = {
   'memoryDebugPanel.section.noVscodeSamples': 'VS Code 브리지 샘플 없음',
   'memoryDebugPanel.metric.totalMessages': '전체 메시지',
   'memoryDebugPanel.metric.cachedSessions': '캐시된 세션',
+  'memoryDebugPanel.metric.userMessages': '사용자 메시지',
+  'memoryDebugPanel.metric.assistantMessages': '어시스턴트 메시지',
   'memoryDebugPanel.metric.viewportWindow': '뷰포트',
   'memoryDebugPanel.metric.zombieTimeout': '좀비 타임아웃',
   'memoryDebugPanel.metric.githubTotalRequests': 'GitHub 전체 요청',
@@ -2522,6 +2524,7 @@ export const dict: Record<I18nKey, string> = {
   'memoryDebugPanel.metric.messagesValue': '{count}개 메시지',
   'memoryDebugPanel.metric.minutesValue': '{count}분',
   'memoryDebugPanel.metric.msgsValue': '{count}개 메시지',
+  'memoryDebugPanel.metric.roleMsgsValue': 'U {user} / A {assistant}',
   'memoryDebugPanel.metric.countValue': '개수 {value}',
   'memoryDebugPanel.metric.avgValue': '평균 {value}',
   'memoryDebugPanel.metric.maxValue': '최대 {value}',
diff --git a/packages/ui/src/lib/i18n/messages/pl.ts b/packages/ui/src/lib/i18n/messages/pl.ts
index 73e62e7c..d763ce39 100644
--- a/packages/ui/src/lib/i18n/messages/pl.ts
+++ b/packages/ui/src/lib/i18n/messages/pl.ts
@@ -2064,6 +2064,8 @@ export const dict: Record<I18nKey, string> = {
   'memoryDebugPanel.common.untitled': 'Bez tytułu',
   'memoryDebugPanel.metric.avgValue': 'średnio {value}',
   'memoryDebugPanel.metric.cachedSessions': 'Sesje w cache',
+  'memoryDebugPanel.metric.userMessages': 'Wiadomości użytkownika',
+  'memoryDebugPanel.metric.assistantMessages': 'Wiadomości asystenta',
   'memoryDebugPanel.metric.chatMessageRenders': 'Renderowania ChatMessage',
   'memoryDebugPanel.metric.chatMessageStaticDuringStream': 'ChatMessage statyczny podczas streamu',
   'memoryDebugPanel.metric.chatMessageStaticOutsideActiveTurn': 'ChatMessage statyczny poza aktywną turą',
@@ -2078,6 +2080,7 @@ export const dict: Record<I18nKey, string> = {
   'memoryDebugPanel.metric.metrics': 'Metryki',
   'memoryDebugPanel.metric.minutesValue': '{count} minut',
   'memoryDebugPanel.metric.msgsValue': '{count} wiad.',
+  'memoryDebugPanel.metric.roleMsgsValue': 'U {user} / A {assistant}',
   'memoryDebugPanel.metric.samples': 'Próbki',
   'memoryDebugPanel.metric.totalMessages': 'Łączna liczba wiadomości',
   'memoryDebugPanel.metric.totalValue': 'łącznie {value}',
diff --git a/packages/ui/src/lib/i18n/messages/pt-BR.ts b/packages/ui/src/lib/i18n/messages/pt-BR.ts
index 1e77dec9..748ff1ed 100644
--- a/packages/ui/src/lib/i18n/messages/pt-BR.ts
+++ b/packages/ui/src/lib/i18n/messages/pt-BR.ts
@@ -2471,6 +2471,8 @@ export const dict: Record<I18nKey, string> = {
   "memoryDebugPanel.section.noVscodeSamples": "Ainda não há amostras da ponte VS Code.",
   "memoryDebugPanel.metric.totalMessages": "Mensagens totais",
   "memoryDebugPanel.metric.cachedSessions": "Sessões em cache",
+  "memoryDebugPanel.metric.userMessages": "Mensagens do usuário",
+  "memoryDebugPanel.metric.assistantMessages": "Mensagens do assistente",
   "memoryDebugPanel.metric.viewportWindow": "Janela de visualização",
   "memoryDebugPanel.metric.zombieTimeout": "Timeout zombie",
   "memoryDebugPanel.metric.githubTotalRequests": "Solicitações totais do GitHub",
@@ -2488,6 +2490,7 @@ export const dict: Record<I18nKey, string> = {
   "memoryDebugPanel.metric.messagesValue": "{count} mensagens",
   "memoryDebugPanel.metric.minutesValue": "{count} minutos",
   "memoryDebugPanel.metric.msgsValue": "{count} mensagens",
+  "memoryDebugPanel.metric.roleMsgsValue": "U {user} / A {assistant}",
   "memoryDebugPanel.metric.countValue": "contagem {value}",
   "memoryDebugPanel.metric.avgValue": "méd. {value}",
   "memoryDebugPanel.metric.maxValue": "máx. {value}",
diff --git a/packages/ui/src/lib/i18n/messages/uk.ts b/packages/ui/src/lib/i18n/messages/uk.ts
index a47c2b23..d5c21d6f 100644
--- a/packages/ui/src/lib/i18n/messages/uk.ts
+++ b/packages/ui/src/lib/i18n/messages/uk.ts
@@ -2471,6 +2471,8 @@ export const dict: Record<I18nKey, string> = {
   "memoryDebugPanel.section.noVscodeSamples": "Ще немає зразків мостів VS Code.",
   "memoryDebugPanel.metric.totalMessages": "Усього повідомлень",
   "memoryDebugPanel.metric.cachedSessions": "Кешовані сесії",
+  "memoryDebugPanel.metric.userMessages": "Повідомлення користувача",
+  "memoryDebugPanel.metric.assistantMessages": "Повідомлення асистента",
   "memoryDebugPanel.metric.viewportWindow": "Вікно вʼюпорту",
   "memoryDebugPanel.metric.zombieTimeout": "Тайм-аут зомбі",
   "memoryDebugPanel.metric.githubTotalRequests": "Загальна кількість запитів GitHub",
@@ -2488,6 +2490,7 @@ export const dict: Record<I18nKey, string> = {
   "memoryDebugPanel.metric.messagesValue": "{count} повідомлення",
   "memoryDebugPanel.metric.minutesValue": "{count} хвилин",
   "memoryDebugPanel.metric.msgsValue": "{count} повідомлення",
+  "memoryDebugPanel.metric.roleMsgsValue": "К {user} / А {assistant}",
   "memoryDebugPanel.metric.countValue": "кількість {value}",
   "memoryDebugPanel.metric.avgValue": "середнє {value}",
   "memoryDebugPanel.metric.maxValue": "макс. {value}",
diff --git a/packages/ui/src/lib/i18n/messages/zh-CN.ts b/packages/ui/src/lib/i18n/messages/zh-CN.ts
index 34c45be2..7e6c5c2d 100644
--- a/packages/ui/src/lib/i18n/messages/zh-CN.ts
+++ b/packages/ui/src/lib/i18n/messages/zh-CN.ts
@@ -2471,6 +2471,8 @@ export const dict: Record<I18nKey, string> = {
   'memoryDebugPanel.section.noVscodeSamples': '暂无 VS Code 桥接采样。',
   'memoryDebugPanel.metric.totalMessages': '消息总数',
   'memoryDebugPanel.metric.cachedSessions': '缓存会话',
+  'memoryDebugPanel.metric.userMessages': '用户消息',
+  'memoryDebugPanel.metric.assistantMessages': '助手消息',
   'memoryDebugPanel.metric.viewportWindow': '视口窗口',
   'memoryDebugPanel.metric.zombieTimeout': '僵尸超时',
   'memoryDebugPanel.metric.githubTotalRequests': 'GitHub 请求总数',
@@ -2488,6 +2490,7 @@ export const dict: Record<I18nKey, string> = {
   'memoryDebugPanel.metric.messagesValue': '{count} 条消息',
   'memoryDebugPanel.metric.minutesValue': '{count} 分钟',
   'memoryDebugPanel.metric.msgsValue': '{count} 条',
+  'memoryDebugPanel.metric.roleMsgsValue': '用户 {user} / 助手 {assistant}',
   'memoryDebugPanel.metric.countValue': '次数 {value}',
   'memoryDebugPanel.metric.avgValue': '平均 {value}',
   'memoryDebugPanel.metric.maxValue': '最大 {value}',
diff --git a/packages/ui/src/lib/i18n/messages/zh-TW.ts b/packages/ui/src/lib/i18n/messages/zh-TW.ts
index 83a004d6..07a54e10 100644
--- a/packages/ui/src/lib/i18n/messages/zh-TW.ts
+++ b/packages/ui/src/lib/i18n/messages/zh-TW.ts
@@ -2468,6 +2468,8 @@ export const dict: Record<I18nKey, string> = {
   'memoryDebugPanel.section.noVscodeSamples': '暫無 VS Code 橋接取樣。',
   'memoryDebugPanel.metric.totalMessages': '訊息總數',
   'memoryDebugPanel.metric.cachedSessions': '快取會話',
+  'memoryDebugPanel.metric.userMessages': '使用者訊息',
+  'memoryDebugPanel.metric.assistantMessages': '助理訊息',
   'memoryDebugPanel.metric.viewportWindow': '視口視窗',
   'memoryDebugPanel.metric.zombieTimeout': '殭屍逾時',
   'memoryDebugPanel.metric.githubTotalRequests': 'GitHub 請求總數',
@@ -2485,6 +2487,7 @@ export const dict: Record<I18nKey, string> = {
   'memoryDebugPanel.metric.messagesValue': '{count} 條訊息',
   'memoryDebugPanel.metric.minutesValue': '{count} 分鐘',
   'memoryDebugPanel.metric.msgsValue': '{count} 條',
+  'memoryDebugPanel.metric.roleMsgsValue': '使用者 {user} / 助理 {assistant}',
   'memoryDebugPanel.metric.countValue': '次數 {value}',
   'memoryDebugPanel.metric.avgValue': '平均 {value}',
   'memoryDebugPanel.metric.maxValue': '最大 {value}',