diff --git a/service-ai/pom.xml b/service-ai/pom.xml
index 2b1f205..8f8be7b 100644
--- a/service-ai/pom.xml
+++ b/service-ai/pom.xml
@@ -30,6 +30,7 @@
         <curator.version>5.1.0</curator.version>
         <hutool.version>5.8.27</hutool.version>
         <mapstruct.version>1.6.3</mapstruct.version>
+        <liteflow.version>2.13.2</liteflow.version>
     </properties>
 
     <dependencies>
@@ -153,12 +154,27 @@
             <dependency>
                 <groupId>com.yomahub</groupId>
                 <artifactId>liteflow-spring-boot-starter</artifactId>
-                <version>2.13.2</version>
+                <version>${liteflow.version}</version>
             </dependency>
             <dependency>
                 <groupId>com.yomahub</groupId>
                 <artifactId>liteflow-el-builder</artifactId>
-                <version>2.13.2</version>
+                <version>${liteflow.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>com.yomahub</groupId>
+                <artifactId>liteflow-script-graaljs</artifactId>
+                <version>${liteflow.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>com.yomahub</groupId>
+                <artifactId>liteflow-script-python</artifactId>
+                <version>${liteflow.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>com.yomahub</groupId>
+                <artifactId>liteflow-script-lua</artifactId>
+                <version>${liteflow.version}</version>
             </dependency>
             <dependency>
                 <groupId>org.noear</groupId>
diff --git a/service-ai/service-ai-web/pom.xml b/service-ai/service-ai-web/pom.xml
index 450a070..d216b41 100644
--- a/service-ai/service-ai-web/pom.xml
+++ b/service-ai/service-ai-web/pom.xml
@@ -50,6 +50,10 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.freemarker</groupId>
+            <artifactId>freemarker</artifactId>
+        </dependency>
         <dependency>
             <groupId>com.blinkfox</groupId>
             <artifactId>fenix-spring-boot-starter</artifactId>
diff --git a/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/FlowHelper.java b/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/FlowHelper.java
index a0a7830..7d9188a 100644
--- a/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/FlowHelper.java
+++ b/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/FlowHelper.java
@@ -1,6 +1,9 @@
 package com.lanyuanxiaoyao.service.ai.web.engine;
 
+import cn.hutool.core.util.ObjectUtil;
 import cn.hutool.core.util.StrUtil;
+import cn.hutool.extra.template.TemplateEngine;
+import cn.hutool.extra.template.TemplateUtil;
 import com.lanyuanxiaoyao.service.ai.web.engine.entity.FlowContext;
 import java.util.Map;
 import org.eclipse.collections.api.factory.Maps;
@@ -11,6 +14,8 @@ import org.eclipse.collections.api.map.ImmutableMap;
  * @version 20250711
  */
 public class FlowHelper {
+  private static final TemplateEngine TEMPLATE_ENGINE = TemplateUtil.createEngine();
+
   public static ImmutableMap<String, Object> generateInputVariablesMap(String nodeId, FlowContext context) {
     var variableMap = Maps.mutable.<String, Object>empty();
     var currentNodeData = context.get(nodeId);
@@ -18,27 +23,39 @@ public class FlowHelper {
       var inputsMap = (Map<String, Map<String, String>>) currentNodeData.get("inputs");
       for (String variableName : inputsMap.keySet()) {
         var expression = inputsMap.get(variableName).get("variable");
-        if (StrUtil.contains(expression, ".")) {
-          var splits = StrUtil.splitTrim(expression, ".", 2);
-          var targetNodeId = splits.get(0);
-          var targetVariableName = splits.get(1);
-          if (!context.getData().containsKey(targetNodeId)) {
-            throw new RuntimeException(StrUtil.format("Target node id not found: {}", targetNodeId));
-          }
-          var targetNodeData = context.getData().get(targetNodeId);
-          if (!targetNodeData.containsKey(targetVariableName)) {
-            throw new RuntimeException(StrUtil.format("Target node variable not found: {}.{}", targetNodeId, targetVariableName));
-          }
-          var targetVariable = targetNodeData.get(targetVariableName);
+        var targetVariable = generateVariable(expression, context);
+        if (ObjectUtil.isNotNull(targetVariable)) {
           variableMap.put(variableName, targetVariable);
-        } else if (context.getInput().containsKey(expression)) {
-          if (!context.getInput().containsKey(variableName)) {
-            throw new RuntimeException(StrUtil.format("Target variable not found in input {}", variableName));
-          }
-          variableMap.put(variableName, context.getInput().get(variableName));
         }
       }
     }
     return variableMap.toImmutable();
   }
+
+  public static Object generateVariable(String expression, FlowContext context) {
+    if (StrUtil.contains(expression, ".")) {
+      var splits = StrUtil.splitTrim(expression, ".", 2);
+      var targetNodeId = splits.get(0);
+      var targetVariableName = splits.get(1);
+      if (!context.getData().containsKey(targetNodeId)) {
+        throw new RuntimeException(StrUtil.format("Target node id not found: {}", targetNodeId));
+      }
+      var targetNodeData = context.getData().get(targetNodeId);
+      if (!targetNodeData.containsKey(targetVariableName)) {
+        throw new RuntimeException(StrUtil.format("Target node variable not found: {}.{}", targetNodeId, targetVariableName));
+      }
+      return targetNodeData.get(targetVariableName);
+    } else if (context.getInput().containsKey(expression)) {
+      if (!context.getInput().containsKey(expression)) {
+        throw new RuntimeException(StrUtil.format("Target variable not found in input {}", expression));
+      }
+      return context.getInput().get(expression);
+    }
+    return null;
+  }
+
+  public static String renderTemplateText(String templateText, Map<?, ?> data) {
+    var template = TEMPLATE_ENGINE.getTemplate(templateText);
+    return template.render(data);
+  }
 }
diff --git a/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/node/LlmNode.java b/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/node/LlmNode.java
index 2cddeaf..1b89bf1 100644
--- a/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/node/LlmNode.java
+++ b/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/node/LlmNode.java
@@ -1,8 +1,11 @@
 package com.lanyuanxiaoyao.service.ai.web.engine.node;
 
+import cn.hutool.core.util.StrUtil;
+import com.lanyuanxiaoyao.service.ai.web.configuration.SpringBeanGetter;
 import com.lanyuanxiaoyao.service.ai.web.engine.FlowHelper;
 import com.lanyuanxiaoyao.service.ai.web.engine.FlowNodeRunner;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.ai.chat.client.ChatClient;
 
 /**
  * @author lanyuanxiaoyao
@@ -14,10 +17,9 @@ public class LlmNode extends FlowNodeRunner {
   public void run() {
     var variableMap = FlowHelper.generateInputVariablesMap(getNodeId(), getContext());
     log.info("Variable map: {}", variableMap);
-    setData("text", "llm");
-
-    /* var prompt = (String) getData("systemPrompt");
-    if (StrUtil.isNotBlank(prompt)) {
+    var sourcePrompt = (String) getData("systemPrompt");
+    if (StrUtil.isNotBlank(sourcePrompt)) {
+      var prompt = FlowHelper.renderTemplateText(sourcePrompt, variableMap.toMap());
       var builder = SpringBeanGetter.getBean("chat", ChatClient.Builder.class);
       var client = builder.build();
       var content = client.prompt()
@@ -25,6 +27,6 @@ public class LlmNode extends FlowNodeRunner {
           .call()
           .content();
       setData("text", content);
-    }*/
+    }
   }
 }
diff --git a/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/node/OutputNode.java b/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/node/OutputNode.java
index 330d6e6..eee76f5 100644
--- a/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/node/OutputNode.java
+++ b/service-ai/service-ai-web/src/main/java/com/lanyuanxiaoyao/service/ai/web/engine/node/OutputNode.java
@@ -12,7 +12,8 @@ import lombok.extern.slf4j.Slf4j;
 public class OutputNode extends FlowNodeRunner {
   @Override
   public void run() {
-    var variableMap = FlowHelper.generateInputVariablesMap(getNodeId(), getContext());
-    log.info("Variable map: {}", variableMap);
+    String expression = getData("output");
+    var targetVariable = FlowHelper.generateVariable(expression, getContext());
+    log.info("Target: {}", targetVariable);
   }
 }