diff --git a/apps/api/src/services/decision_manager.py b/apps/api/src/services/decision_manager.py
index 54854818f..b313ad3b8 100644
--- a/apps/api/src/services/decision_manager.py
+++ b/apps/api/src/services/decision_manager.py
@@ -347,19 +347,9 @@ class DecisionManager:
             # READY 或 EXECUTING 狀態: 直接返回
             if existing_token.state in (DecisionState.READY, DecisionState.EXECUTING):
                 return existing_token
-            # COMPLETED 狀態: 只有 incident 也已解決才返回，否則創建新 decision
-            # 修復: 避免 incident 未解決但 decision 已完成導致 Y/n 按鈕永久禁用
+            # COMPLETED 狀態: 直接返回，避免重複建立 decision 導致 Telegram 轟炸
             if existing_token.state == DecisionState.COMPLETED:
-                from src.models.incident import IncidentStatus
-                if incident.status in (IncidentStatus.RESOLVED, IncidentStatus.CLOSED):
-                    return existing_token
-                # incident 仍在處理中，需要新的 decision
-                logger.info(
-                    "decision_reset_for_active_incident",
-                    token=existing_token.token,
-                    incident_id=incident.incident_id,
-                    incident_status=incident.status.value,
-                )
+                return existing_token
 
         # 2. 建立新 token
         token = DecisionToken(
@@ -780,17 +770,9 @@ class DecisionManager:
             # READY 或 EXECUTING 狀態: 直接返回
             if existing_token.state in (DecisionState.READY, DecisionState.EXECUTING):
                 return existing_token
-            # COMPLETED 狀態: 只有 incident 也已解決才返回
+            # COMPLETED 狀態: 直接返回，避免重複建立 decision 導致 Telegram 轟炸
             if existing_token.state == DecisionState.COMPLETED:
-                from src.models.incident import IncidentStatus
-                if incident.status in (IncidentStatus.RESOLVED, IncidentStatus.CLOSED):
-                    return existing_token
-                logger.info(
-                    "decision_reset_for_active_incident_consensus",
-                    token=existing_token.token,
-                    incident_id=incident.incident_id,
-                    incident_status=incident.status.value,
-                )
+                return existing_token
 
         # 建立新 token
         token = DecisionToken(