diff --git a/agents-flex-core/src/main/java/com/agentsflex/core/chain/Parameter.java b/agents-flex-core/src/main/java/com/agentsflex/core/chain/Parameter.java
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+++ b/agents-flex-core/src/main/java/com/agentsflex/core/chain/Parameter.java
@@ -0,0 +1,303 @@
+/*
+ *  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.core.chain;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
+
+public class Parameter implements Serializable, Cloneable {
+    protected String id;
+    protected String name;
+    protected String description;
+    protected DataType dataType = DataType.String;
+
+    /**
+     * 数据类型：文字内容、图片、音频、视频、文件
+     */
+    protected String contentType;
+    protected String ref;
+    protected RefType refType;
+    protected String value;
+    protected boolean required;
+    protected String defaultValue;
+    protected List<Parameter> children;
+
+    /**
+     * 枚举值列表
+     */
+    protected List<Object> enums;
+
+    /**
+     * 用户输入的表单类型，例如："input"  "textarea"  "select"  "radio"  "checkbox"  等等
+     */
+    protected String formType;
+
+    /**
+     * 用户界面上显示的提示文字，用于引导用户进行选择
+     */
+    protected String formLabel;
+
+
+    /**
+     * 表单的提示文字，用于引导用户进行选择或填写
+     */
+    protected String formPlaceholder;
+
+    /**
+     * 用户界面上显示的描述文字，用于引导用户进行选择
+     */
+    protected String formDescription;
+
+    /**
+     * 表单的其他属性
+     */
+    protected String formAttrs;
+
+
+    public Parameter() {
+    }
+
+    public Parameter(String name) {
+        this.name = name;
+    }
+
+    public Parameter(String name, DataType dataType) {
+        this.name = name;
+        this.dataType = dataType;
+    }
+
+    public Parameter(String name, boolean required) {
+        this.name = name;
+        this.required = required;
+    }
+
+    public Parameter(String name, DataType dataType, boolean required) {
+        this.name = name;
+        this.dataType = dataType;
+        this.required = required;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public DataType getDataType() {
+        return dataType;
+    }
+
+    public void setDataType(DataType dataType) {
+        this.dataType = dataType;
+    }
+
+    public String getContentType() {
+        return contentType;
+    }
+
+    public void setContentType(String contentType) {
+        this.contentType = contentType;
+    }
+
+    public String getRef() {
+        return ref;
+    }
+
+    public void setRef(String ref) {
+        this.ref = ref;
+    }
+
+    public RefType getRefType() {
+        return refType;
+    }
+
+    public void setRefType(RefType refType) {
+        this.refType = refType;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+
+    public String getDefaultValue() {
+        return defaultValue;
+    }
+
+    public void setDefaultValue(String defaultValue) {
+        this.defaultValue = defaultValue;
+    }
+
+    public boolean isRequired() {
+        return required;
+    }
+
+    public void setRequired(boolean required) {
+        this.required = required;
+    }
+
+    public List<Parameter> getChildren() {
+        return children;
+    }
+
+    public void setChildren(List<Parameter> children) {
+        this.children = children;
+    }
+
+    public void addChild(Parameter parameter) {
+        if (children == null) {
+            children = new java.util.ArrayList<>();
+        }
+        children.add(parameter);
+    }
+
+    public void addChildren(Collection<Parameter> parameters) {
+        if (children == null) {
+            children = new java.util.ArrayList<>();
+        }
+        children.addAll(parameters);
+    }
+
+    public List<Object> getEnums() {
+        return enums;
+    }
+
+    public void setEnums(List<Object> enums) {
+        this.enums = enums;
+    }
+
+    public void setEnumsObject(Object enumsObject) {
+        if (enumsObject == null) {
+            this.enums = null;
+        } else if (enumsObject instanceof Collection) {
+            this.enums = new ArrayList<>();
+            this.enums.addAll((Collection<?>) enumsObject);
+        } else if (enumsObject.getClass().isArray()) {
+            this.enums = new ArrayList<>();
+            this.enums.addAll(Arrays.asList((Object[]) enumsObject));
+        } else {
+            this.enums = new ArrayList<>(1);
+            this.enums.add(enumsObject);
+        }
+    }
+
+    public String getFormType() {
+        return formType;
+    }
+
+    public void setFormType(String formType) {
+        this.formType = formType;
+    }
+
+    public String getFormLabel() {
+        return formLabel;
+    }
+
+    public void setFormLabel(String formLabel) {
+        this.formLabel = formLabel;
+    }
+
+    public String getFormPlaceholder() {
+        return formPlaceholder;
+    }
+
+    public void setFormPlaceholder(String formPlaceholder) {
+        this.formPlaceholder = formPlaceholder;
+    }
+
+    public String getFormDescription() {
+        return formDescription;
+    }
+
+    public void setFormDescription(String formDescription) {
+        this.formDescription = formDescription;
+    }
+
+    public String getFormAttrs() {
+        return formAttrs;
+    }
+
+    public void setFormAttrs(String formAttrs) {
+        this.formAttrs = formAttrs;
+    }
+
+    @Override
+    public String toString() {
+        return "Parameter{" +
+            "id='" + id + '\'' +
+            ", name='" + name + '\'' +
+            ", description='" + description + '\'' +
+            ", dataType=" + dataType +
+            ", contentType='" + contentType + '\'' +
+            ", ref='" + ref + '\'' +
+            ", refType=" + refType +
+            ", value='" + value + '\'' +
+            ", required=" + required +
+            ", defaultValue='" + defaultValue + '\'' +
+            ", children=" + children +
+            ", enums=" + enums +
+            ", formType='" + formType + '\'' +
+            ", formLabel='" + formLabel + '\'' +
+            ", formPlaceholder='" + formPlaceholder + '\'' +
+            ", formDescription='" + formDescription + '\'' +
+            ", formAttrs='" + formAttrs + '\'' +
+            '}';
+    }
+
+    @Override
+    public Parameter clone() {
+        try {
+            Parameter clone = (Parameter) super.clone();
+            if (this.children != null) {
+                clone.children = new ArrayList<>(this.children.size());
+                for (Parameter child : this.children) {
+                    clone.children.add(child.clone()); // 递归克隆
+                }
+            }
+            if (this.enums != null) {
+                clone.enums = new ArrayList<>(this.enums.size());
+                clone.enums.addAll(this.enums);
+            }
+            return clone;
+        } catch (CloneNotSupportedException e) {
+            throw new AssertionError();
+        }
+    }
+}