diff --git a/ml-algorithms/src/main/java/org/opensearch/ml/engine/algorithms/agent/MLChatAgentRunner.java b/ml-algorithms/src/main/java/org/opensearch/ml/engine/algorithms/agent/MLChatAgentRunner.java
index 23df18f79a..38be5cf5f0 100644
--- a/ml-algorithms/src/main/java/org/opensearch/ml/engine/algorithms/agent/MLChatAgentRunner.java
+++ b/ml-algorithms/src/main/java/org/opensearch/ml/engine/algorithms/agent/MLChatAgentRunner.java
@@ -5,6 +5,7 @@
 
 package org.opensearch.ml.engine.algorithms.agent;
 
+import static org.opensearch.ml.common.CommonValue.TENANT_ID_FIELD;
 import static org.opensearch.ml.common.agui.AGUIConstants.AGUI_PARAM_ASSISTANT_TOOL_CALL_MESSAGES;
 import static org.opensearch.ml.common.agui.AGUIConstants.AGUI_PARAM_BACKEND_TOOL_NAMES;
 import static org.opensearch.ml.common.agui.AGUIConstants.AGUI_PARAM_TOOLS;
@@ -499,6 +500,7 @@ private void runReAct(
                                 action,
                                 actionInput
                             );
+                            toolParams.put(TENANT_ID_FIELD, tenantId);
                             lastToolParams.clear();
                             lastToolParams.putAll(toolParams);
                             runTool(