diff --git a/apps/api/src/api/v1/webhooks.py b/apps/api/src/api/v1/webhooks.py
index 400c8f4fb..e86950f11 100644
--- a/apps/api/src/api/v1/webhooks.py
+++ b/apps/api/src/api/v1/webhooks.py
@@ -463,7 +463,8 @@ class AlertResponse(BaseModel):
 # =============================================================================
 
 # Redis Stream 常量
-SIGNAL_STREAM_KEY = "stream:awoooi_signals"
+# 2026-03-27 ogt: 統一 Stream Key 格式 (P0 修復)
+SIGNAL_STREAM_KEY = "awoooi:signals"
 SIGNAL_STREAM_MAXLEN = 10000  # 防止 Stream 無限增長
 
 
diff --git a/apps/api/src/workers/signal_worker.py b/apps/api/src/workers/signal_worker.py
index 523c55dfa..7faf6f90b 100644
--- a/apps/api/src/workers/signal_worker.py
+++ b/apps/api/src/workers/signal_worker.py
@@ -44,7 +44,8 @@ logger = structlog.get_logger(__name__)
 # Constants
 # =============================================================================
 
-STREAM_KEY = "stream:awoooi_signals"
+# 2026-03-27 ogt: 統一 Stream Key 格式 (P0 修復)
+STREAM_KEY = "awoooi:signals"
 CONSUMER_GROUP = "awoooi_workers"
 CONSUMER_NAME = f"worker_{socket.gethostname()}"