diff --git a/scripts/gateway-watchdog.sh b/scripts/gateway-watchdog.sh
index f56b748..33cff2c 100755
--- a/scripts/gateway-watchdog.sh
+++ b/scripts/gateway-watchdog.sh
@@ -184,7 +184,11 @@ count_rules() {
     # R3: 含 "rate_limit" 或含 "429"
     local r3_matched
     r3_matched=$(echo "$recent_lines" | grep -E 'rate_limit|429' || true)
-    R3_COUNT=$(echo "$r3_matched" | _safe_count 'rate_limit|429')
+    if [ -n "$r3_matched" ]; then
+        R3_COUNT=$(echo "$r3_matched" | wc -l | tr -d '[:space:]')
+    else
+        R3_COUNT=0
+    fi
 }
 
 # === 主逻辑 ===