diff --git a/configs/overlays/alarm_test_sensitive.json b/configs/overlays/alarm_test_sensitive.json
new file mode 100644
index 0000000..cd96c19
--- /dev/null
+++ b/configs/overlays/alarm_test_sensitive.json
@@ -0,0 +1,47 @@
+{
+  "description": "降低告警阈值用于测试：缩短冷却时间、降低最小持续时间和命中数。",
+  "instance_overrides": {
+    "*": {
+      "override": {
+        "nodes": {
+          "alarm_violation": {
+            "rules": [
+              {
+                "name": "non_compliant_workshoe",
+                "class_ids": [2],
+                "min_score": 0.1,
+                "min_duration_ms": 100,
+                "min_hits": 1,
+                "hit_window_ms": 5000,
+                "cooldown_ms": 2000
+              }
+            ],
+            "face_rules": [
+              {
+                "name": "unknown_face",
+                "type": "unknown",
+                "cooldown_ms": 2000,
+                "min_hits": 1,
+                "hit_window_ms": 5000,
+                "min_face_area_ratio": 0.0001,
+                "min_face_aspect": 0.3,
+                "max_face_aspect": 3.0
+              },
+              {
+                "name": "known_person",
+                "type": "person",
+                "cooldown_ms": 2000,
+                "min_sim": 0.3,
+                "min_hits": 1,
+                "hit_window_ms": 5000,
+                "min_face_area_ratio": 0.0001,
+                "min_face_aspect": 0.3,
+                "max_face_aspect": 3.0
+              }
+            ]
+          }
+        }
+      }
+    }
+  }
+}