diff --git a/site/test_routes.py b/site/test_routes.py
index 97a2d56..4e006b3 100644
--- a/site/test_routes.py
+++ b/site/test_routes.py
@@ -111,4 +111,15 @@ def test():
             return jsonify(result), 500
         return jsonify(result)
 
+    if action == "debug":
+        # Показать переменные окружения (с маскировкой ключей)
+        import os as _os
+        vars_info = {}
+        for k, v in sorted(_os.environ.items()):
+            if any(x in k.upper() for x in ("KEY", "PASS", "SECRET", "TOKEN")):
+                vars_info[k] = v[:6] + "..." if v else "(empty)"
+            elif any(x in k.upper() for x in ("DB_", "LLM_", "FLASK", "PORT")):
+                vars_info[k] = v
+        return jsonify({"env": vars_info, "python": _os.sys.version})
+
     return jsonify({"error": f"unknown action: {action}"}), 400