diff --git a/static/src/stores/subAgent.ts b/static/src/stores/subAgent.ts
index 6ee8e68a..052e58c9 100644
--- a/static/src/stores/subAgent.ts
+++ b/static/src/stores/subAgent.ts
@@ -169,7 +169,12 @@ export const useSubAgentStore = defineStore('subAgent', {
         [normalizedId]: true
       };
       try {
-        const resp = await fetch(`/api/sub_agents/${encodeURIComponent(normalizedId)}/terminate`, {
+        // 必须携带 conversation_id：with_terminal 无会话参数时会落到工作区级服务
+        // terminal，其 current_conversation_id 可能是别的对话，导致后端 403
+        const conversationStore = useConversationStore();
+        const convId = conversationStore.currentConversationId;
+        const query = convId ? `?conversation_id=${encodeURIComponent(convId)}` : '';
+        const resp = await fetch(`/api/sub_agents/${encodeURIComponent(normalizedId)}/terminate${query}`, {
           method: 'POST'
         });
         const data = await resp.json().catch(() => ({}));
@@ -196,7 +201,11 @@ export const useSubAgentStore = defineStore('subAgent', {
     },
     async stopAllAgents(mode: 'terminate' | 'soft_stop'): Promise<{ success: boolean; stoppedCount?: number; error?: string }> {
       try {
-        const resp = await fetch('/api/sub_agents/stop_all', {
+        // 同 terminateSubAgent：携带 conversation_id 确保命中对话级 terminal
+        const conversationStore = useConversationStore();
+        const convId = conversationStore.currentConversationId;
+        const query = convId ? `?conversation_id=${encodeURIComponent(convId)}` : '';
+        const resp = await fetch(`/api/sub_agents/stop_all${query}`, {
           method: 'POST',
           headers: { 'Content-Type': 'application/json' },
           body: JSON.stringify({ mode })