diff --git a/airflow_monitor/actions.py b/airflow_monitor/actions.py
index d383e7f..5e07d9a 100644
--- a/airflow_monitor/actions.py
+++ b/airflow_monitor/actions.py
@@ -53,6 +53,7 @@ class DataExporter:
             )
             with os.fdopen(fd, "w", encoding="utf-8") as f:
                 f.write(content)
+            os.chmod(tmp_path, 0o644)
             os.replace(tmp_path, str(path))
             logger.debug(
                 "File written: %s (%d bytes)",
diff --git a/build.sh b/build.sh
index 2be497e..9032814 100755
--- a/build.sh
+++ b/build.sh
@@ -333,6 +333,8 @@ for dir in "$STATE_DIR" "$LOG_DIR"; do
     else
         echo "  Exists:  $dir"
     fi
+    # Ensure zabbix agent can read data files
+    sudo chmod 755 "$dir"
 done
 
 # --- Step 6: Install systemd service ---
diff --git a/zabbix/airflow-monitor.conf b/zabbix/airflow-monitor.conf
index cfd0b6f..16bc0be 100644
--- a/zabbix/airflow-monitor.conf
+++ b/zabbix/airflow-monitor.conf
@@ -17,7 +17,7 @@ UserParameter=airflow.dag.problems,cat /var/lib/airflow-monitor/problems.json 2>
 
 # Количество проблемных DAG-ов (для простых триггеров)
 # Zabbix item: type=Zabbix agent, key=airflow.dag.problems.count, type of info=Numeric (unsigned)
-UserParameter=airflow.dag.problems.count,python3 -c "import json,sys; print(len(json.load(open('/var/lib/airflow-monitor/problems.json'))))" 2>/dev/null || echo 0
+UserParameter=airflow.dag.problems.count,grep -o '"dag_id"' /var/lib/airflow-monitor/problems.json 2>/dev/null | wc -l
 
 # Heartbeat — epoch timestamp последнего успешного цикла
 # Zabbix item: type=Zabbix agent, key=airflow.monitor.heartbeat, type of info=Numeric (unsigned)