diff --git a/agents-flex-core/src/main/java/com/agentsflex/chain/Chain.java b/agents-flex-core/src/main/java/com/agentsflex/chain/Chain.java
index 78d81fd..7c523da 100644
--- a/agents-flex-core/src/main/java/com/agentsflex/chain/Chain.java
+++ b/agents-flex-core/src/main/java/com/agentsflex/chain/Chain.java
@@ -355,8 +355,16 @@ public abstract class Chain implements Serializable {
     public String toString() {
         return "Chain{" +
             "id=" + id +
+            ", memory=" + memory +
+            ", eventListeners=" + eventListeners +
+            ", inputListeners=" + inputListeners +
+            ", outputListeners=" + outputListeners +
+            ", nodes=" + nodes +
+            ", parent=" + parent +
+            ", children=" + children +
+            ", status=" + status +
+            ", message='" + message + '\'' +
+            ", waitInputParameters=" + waitInputParameters +
             '}';
     }
-
-
 }
diff --git a/agents-flex-core/src/main/java/com/agentsflex/chain/InputWrapper.java b/agents-flex-core/src/main/java/com/agentsflex/chain/InputWrapper.java
deleted file mode 100644
index a947b0f..0000000
--- a/agents-flex-core/src/main/java/com/agentsflex/chain/InputWrapper.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
- *  <p>
- *  Licensed under the Apache License, Version 2.0 (the "License");
- *  you may not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *  <p>
- *  http://www.apache.org/licenses/LICENSE-2.0
- *  <p>
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- */
-package com.agentsflex.chain;
-
-import com.agentsflex.agent.Parameter;
-import com.agentsflex.chain.node.AgentNode;
-
-import java.util.List;
-
-public class InputWrapper {
-
-    private AgentNode agentNode;
-    private List<Parameter> parameters;
-
-    public InputWrapper(AgentNode agentNode, List<Parameter> parameters) {
-        this.agentNode = agentNode;
-        this.parameters = parameters;
-    }
-
-    public AgentNode getAgentNode() {
-        return agentNode;
-    }
-
-    public void setAgentNode(AgentNode agentNode) {
-        this.agentNode = agentNode;
-    }
-
-    public List<Parameter> getParameters() {
-        return parameters;
-    }
-
-    public void setParameters(List<Parameter> parameters) {
-        this.parameters = parameters;
-    }
-}
diff --git a/agents-flex-core/src/main/java/com/agentsflex/chain/LoopChain.java b/agents-flex-core/src/main/java/com/agentsflex/chain/LoopChain.java
index 7d9d9ca..a590af6 100644
--- a/agents-flex-core/src/main/java/com/agentsflex/chain/LoopChain.java
+++ b/agents-flex-core/src/main/java/com/agentsflex/chain/LoopChain.java
@@ -57,8 +57,6 @@ public class LoopChain extends BaseChain {
             for (int i = currentIndex; i < nodes.size(); i++) {
                 try {
                     ChainNode node = nodes.get(i);
-
-
                     Map<String, Object> result = null;
                     try {
                         notifyEvent(new OnNodeStartEvent(node));
diff --git a/agents-flex-core/src/main/java/com/agentsflex/chain/SequentialChain.java b/agents-flex-core/src/main/java/com/agentsflex/chain/SequentialChain.java
index e0d4cd7..c888040 100644
--- a/agents-flex-core/src/main/java/com/agentsflex/chain/SequentialChain.java
+++ b/agents-flex-core/src/main/java/com/agentsflex/chain/SequentialChain.java
@@ -56,7 +56,6 @@ public class SequentialChain extends BaseChain {
         for (int i = currentIndex; i < getNodes().size(); i++) {
             try {
                 ChainNode node = nodes.get(i);
-
                 Map<String, Object> result = null;
                 try {
                     notifyEvent(new OnNodeStartEvent(node));