diff --git a/mateclaw-ui/src/components/chat/MessageBubble.vue b/mateclaw-ui/src/components/chat/MessageBubble.vue
index 97bd6ae1..956195d2 100644
--- a/mateclaw-ui/src/components/chat/MessageBubble.vue
+++ b/mateclaw-ui/src/components/chat/MessageBubble.vue
@@ -659,19 +659,19 @@ const segments = computed<MessageSegment[]>(() => {
 const useSegmentedView = computed(() => segments.value.length > 1)
 
 const toolCallsMeta = computed<ToolCallMeta[]>(() => {
-  return props.message.metadata?.toolCalls || []
+  return parsedMetadata.value?.toolCalls || []
 })
 
 const browserActionsMeta = computed<BrowserAction[]>(() => {
-  return props.message.metadata?.browserActions || []
+  return parsedMetadata.value?.browserActions || []
 })
 
 const planMeta = computed<PlanMeta | undefined>(() => {
-  return props.message.metadata?.plan
+  return parsedMetadata.value?.plan
 })
 
 const currentPhaseName = computed(() => {
-  const phase = props.message.metadata?.currentPhase
+  const phase = parsedMetadata.value?.currentPhase
   switch (phase) {
     case 'reasoning': return 'Reasoning'
     case 'action': return 'Executing tools'
@@ -693,7 +693,9 @@ const truncateArgs = (args: string) => {
 
 // --- 审批面板 ---
 const pendingApproval = computed(() => {
-  return props.message.metadata?.pendingApproval || null
+  const approval = parsedMetadata.value?.pendingApproval
+  if (!approval || approval.status === 'expired') return null
+  return approval
 })
 
 const approvalSeverityClass = computed(() => {
@@ -724,7 +726,7 @@ const showExecutionPanel = computed(() => {
   if (role.value !== 'assistant') return false
   // 审批卡片有独立的渲染区域，但 execution panel 也应该在审批阶段展示上下文
   return toolCallsMeta.value.length > 0 || !!planMeta.value
-    || (isGenerating.value && props.message.metadata?.currentPhase)
+    || (isGenerating.value && parsedMetadata.value?.currentPhase)
     || !!pendingApproval.value
 })
 
diff --git a/mateclaw-ui/src/composables/chat/useChat.ts b/mateclaw-ui/src/composables/chat/useChat.ts
index 9361c7d1..3871ca99 100644
--- a/mateclaw-ui/src/composables/chat/useChat.ts
+++ b/mateclaw-ui/src/composables/chat/useChat.ts
@@ -175,6 +175,44 @@ export function useChat(options: UseChatOptions): UseChatReturn {
     return metadata
   }
 
+  /**
+   * SSE 以 error/done 结束但审批实际上已失效时，收口残留的 awaiting_approval UI 状态。
+   * 必须用 updateMessage 触发响应式更新，不能只改嵌套字段。
+   */
+  const expirePendingApprovals = (finalStatus: 'completed' | 'failed' | 'stopped') => {
+    for (const m of messages.value) {
+      if (m.role !== 'assistant') continue
+      const metadata = parseMetadata((m as any).metadata)
+      const pendingApproval = metadata?.pendingApproval
+      const hasPendingApproval = pendingApproval?.status === 'pending_approval'
+      const isAwaitingApprovalMsg = m.status === 'awaiting_approval' || metadata?.currentPhase === 'awaiting_approval'
+      if (!hasPendingApproval && !isAwaitingApprovalMsg) continue
+      if (m.id === undefined || m.id === null) continue
+
+      const toolCalls = Array.isArray(metadata?.toolCalls)
+        ? metadata.toolCalls.map((tc: any) => (
+            tc?.status === 'running' || tc?.status === 'awaiting_approval'
+              ? { ...tc, status: 'completed' }
+              : tc
+          ))
+        : metadata?.toolCalls
+
+      updateMessage(m.id, {
+        ...m,
+        status: m.status === 'awaiting_approval' ? finalStatus : m.status,
+        metadata: {
+          ...metadata,
+          currentPhase: undefined,
+          runningToolName: undefined,
+          toolCalls,
+          pendingApproval: hasPendingApproval
+            ? { ...pendingApproval, status: 'expired' }
+            : pendingApproval,
+        },
+      } as any)
+    }
+  }
+
   // 消息管理
   const {
     messages,
@@ -384,6 +422,7 @@ export function useChat(options: UseChatOptions): UseChatReturn {
       : data.status === 'stopped' ? 'stopped' : 'completed'
     if (data.status !== 'awaiting_approval') {
       phaseInfo.value = null
+      expirePendingApprovals(data.status === 'stopped' ? 'stopped' : 'completed')
     }
 
     // 兜底清理排队状态（如果 queued_input_started 已经处理了则这里是 no-op）
@@ -431,6 +470,7 @@ export function useChat(options: UseChatOptions): UseChatReturn {
     phaseInfo.value = null
     // 错误时清理排队状态，避免脏残留
     messageQueue.clear()
+    expirePendingApprovals('failed')
 
     if (errorFired) return
     errorFired = true
diff --git a/mateclaw-ui/src/utils/messageReconcile.ts b/mateclaw-ui/src/utils/messageReconcile.ts
index a9de68a9..feff58cd 100644
--- a/mateclaw-ui/src/utils/messageReconcile.ts
+++ b/mateclaw-ui/src/utils/messageReconcile.ts
@@ -93,6 +93,9 @@ function mergeContentParts(localParts: any[], fetchedParts: any[]): any[] {
   return merged.sort((a, b) => (order[a.type] ?? 99) - (order[b.type] ?? 99))
 }
 
+/** 审批的已决状态（前端通过 SSE 实时更新，比后端持久化更新） */
+const RESOLVED_APPROVAL = new Set(['expired', 'approved', 'denied'])
+
 function mergeMetadata(localMetaRaw: any, fetchedMetaRaw: any): Record<string, any> {
   const localMeta = safeParseMeta(localMetaRaw)
   const fetchedMeta = safeParseMeta(fetchedMetaRaw)
@@ -114,7 +117,16 @@ function mergeMetadata(localMetaRaw: any, fetchedMetaRaw: any): Record<string, a
     merged.toolCalls = fetchedToolCalls
   }
 
-  if (!merged.pendingApproval && localMeta.pendingApproval) {
+  // pendingApproval：前端已决/过期状态不被后端的 pending 状态回退
+  const localApprovalStatus = localMeta.pendingApproval?.status
+  if (RESOLVED_APPROVAL.has(localApprovalStatus)) {
+    merged.pendingApproval = localMeta.pendingApproval
+    // 清除已过期审批关联的 phase 字段，防止 UI 残留
+    if (localApprovalStatus === 'expired') {
+      delete merged.currentPhase
+      delete merged.runningToolName
+    }
+  } else if (!merged.pendingApproval && localMeta.pendingApproval) {
     merged.pendingApproval = localMeta.pendingApproval
   }
 
@@ -142,7 +154,10 @@ function mergeAssistantMessages(localMsg: Message, fetchedMsg: Message): Message
       : localMsg.content,
     contentParts,
     metadata: mergeMetadata(localMsg.metadata, fetchedMsg.metadata),
-    status: fetchedMsg.status || localMsg.status,
+    // 不要把已终结的状态（failed/completed/stopped）回退为 awaiting_approval
+    status: (fetchedMsg.status === 'awaiting_approval' && localMsg.status && localMsg.status !== 'awaiting_approval')
+      ? localMsg.status
+      : (fetchedMsg.status || localMsg.status),
     promptTokens: fetchedMsg.promptTokens ?? localMsg.promptTokens,
     completionTokens: fetchedMsg.completionTokens ?? localMsg.completionTokens,
     createTime: fetchedMsg.createTime || localMsg.createTime,