diff --git a/apps/api/src/services/proposal_service.py b/apps/api/src/services/proposal_service.py
index d6dbe34f..9a3e3120 100644
--- a/apps/api/src/services/proposal_service.py
+++ b/apps/api/src/services/proposal_service.py
@@ -169,7 +169,11 @@ class ProposalService:
 
             # 使用 LLM 結果或 fallback 到模板
             if llm_success and llm_proposal:
-                action = llm_proposal["action"]
+                # 2026-04-09 Claude Sonnet 4.6: action 優先用 kubectl_command（可執行），
+                # fallback 到 action_title（中文標題無法被 parse_operation_from_action 解析）
+                # 根本問題: action="未知操作 | " 導致批准後永遠 skip 執行
+                _kubectl = llm_proposal.get("kubectl_command", "").strip()
+                action = _kubectl if _kubectl else llm_proposal["action"]
                 description = f"{llm_proposal['description']}\n\n**AI 推理**: {llm_proposal['reasoning']}"
                 action_type = llm_proposal.get("primary_responsibility", "default").lower()