diff --git a/src/main/java/org/opensearch/agent/tools/PPLTool.java b/src/main/java/org/opensearch/agent/tools/PPLTool.java
index 29ff510a..e058363f 100644
--- a/src/main/java/org/opensearch/agent/tools/PPLTool.java
+++ b/src/main/java/org/opensearch/agent/tools/PPLTool.java
@@ -263,7 +263,7 @@ public PPLTool create(Map<String, Object> map) {
                 (String) map.get("model_id"),
                 (String) map.getOrDefault("prompt", ""),
                 (String) map.getOrDefault("model_type", ""),
-                (boolean) map.getOrDefault("execute", true)
+                Boolean.valueOf((String) map.getOrDefault("execute", "true"))
             );
         }