diff --git a/bigtop-manager-common/src/main/java/org/apache/bigtop/manager/common/utils/JsonUtils.java b/bigtop-manager-common/src/main/java/org/apache/bigtop/manager/common/utils/JsonUtils.java
index 963b48a3..66931bd1 100644
--- a/bigtop-manager-common/src/main/java/org/apache/bigtop/manager/common/utils/JsonUtils.java
+++ b/bigtop-manager-common/src/main/java/org/apache/bigtop/manager/common/utils/JsonUtils.java
@@ -23,6 +23,7 @@
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
 import lombok.extern.slf4j.Slf4j;
 
 import java.io.File;
@@ -129,4 +130,19 @@ public static <T> String writeAsString(T obj) {
             throw new RuntimeException(e);
         }
     }
+
+    public static <T> String indentWriteAsString(T obj) {
+        if (obj == null) {
+            return null;
+        }
+
+        try {
+            OBJECTMAPPER.enable(SerializationFeature.INDENT_OUTPUT);
+            String result = OBJECTMAPPER.writeValueAsString(obj);
+            OBJECTMAPPER.disable(SerializationFeature.INDENT_OUTPUT);
+            return result;
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
 }
diff --git a/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/ClusterInfoFunctions.java b/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/ClusterInfoFunctions.java
index f64591cb..0ba264ae 100644
--- a/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/ClusterInfoFunctions.java
+++ b/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/ClusterInfoFunctions.java
@@ -40,35 +40,39 @@ public class ClusterInfoFunctions {
     @Resource
     private ClusterService clusterService;
 
-    public Map<ToolSpecification, ToolExecutor> list() {
+    public Map<ToolSpecification, ToolExecutor> listCluster() {
         ToolSpecification toolSpecification = ToolSpecification.builder()
-                .name("list")
+                .name("listCluster")
                 .description("Get cluster list")
                 .build();
         ToolExecutor toolExecutor =
-                (toolExecutionRequest, memoryId) -> clusterService.list().toString();
+                (toolExecutionRequest, memoryId) -> JsonUtils.indentWriteAsString(clusterService.list());
 
         return Map.of(toolSpecification, toolExecutor);
     }
 
-    public Map<ToolSpecification, ToolExecutor> get() {
+    public Map<ToolSpecification, ToolExecutor> getClusterById() {
         ToolSpecification toolSpecification = ToolSpecification.builder()
-                .name("get")
+                .name("getClusterById")
                 .description("Get cluster information based on ID")
                 .addParameter("clusterId", JsonSchemaProperty.NUMBER, JsonSchemaProperty.description("cluster id"))
                 .build();
         ToolExecutor toolExecutor = (toolExecutionRequest, memoryId) -> {
             Map<String, Object> arguments = JsonUtils.readFromString(toolExecutionRequest.arguments());
             Long clusterId = Long.valueOf(arguments.get("clusterId").toString());
-            return clusterService.get(clusterId).toString();
+            ClusterVO clusterVO = clusterService.get(clusterId);
+            if (clusterVO == null) {
+                return "Cluster not found";
+            }
+            return JsonUtils.indentWriteAsString(clusterVO);
         };
 
         return Map.of(toolSpecification, toolExecutor);
     }
 
-    public Map<ToolSpecification, ToolExecutor> getByName() {
+    public Map<ToolSpecification, ToolExecutor> getClusterByName() {
         ToolSpecification toolSpecification = ToolSpecification.builder()
-                .name("getByName")
+                .name("getClusterByName")
                 .description("Get cluster information based on cluster name")
                 .addParameter("clusterName", JsonSchemaProperty.STRING, JsonSchemaProperty.description("cluster name"))
                 .build();
@@ -78,7 +82,7 @@ public Map<ToolSpecification, ToolExecutor> getByName() {
             List<ClusterVO> clusterVOS = clusterService.list();
             for (ClusterVO clusterVO : clusterVOS) {
                 if (clusterVO.getName().equals(clusterName)) {
-                    return clusterVO.toString();
+                    return JsonUtils.indentWriteAsString(clusterVO);
                 }
             }
             return "Cluster not found";
@@ -89,9 +93,9 @@ public Map<ToolSpecification, ToolExecutor> getByName() {
 
     public Map<ToolSpecification, ToolExecutor> getAllFunctions() {
         Map<ToolSpecification, ToolExecutor> functions = new HashMap<>();
-        functions.putAll(list());
-        functions.putAll(get());
-        functions.putAll(getByName());
+        functions.putAll(listCluster());
+        functions.putAll(getClusterById());
+        functions.putAll(getClusterByName());
         return functions;
     }
 }
diff --git a/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/HostInfoFunctions.java b/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/HostInfoFunctions.java
index 13eae3f4..21018649 100644
--- a/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/HostInfoFunctions.java
+++ b/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/HostInfoFunctions.java
@@ -41,24 +41,28 @@ public class HostInfoFunctions {
     @Resource
     private HostService hostService;
 
-    public Map<ToolSpecification, ToolExecutor> get() {
+    public Map<ToolSpecification, ToolExecutor> getHostById() {
         ToolSpecification toolSpecification = ToolSpecification.builder()
-                .name("get")
+                .name("getHostById")
                 .description("Get host information based on ID")
                 .addParameter("hostId", JsonSchemaProperty.NUMBER, JsonSchemaProperty.description("host id"))
                 .build();
         ToolExecutor toolExecutor = (toolExecutionRequest, memoryId) -> {
             Map<String, Object> arguments = JsonUtils.readFromString(toolExecutionRequest.arguments());
             Long hostId = Long.valueOf(arguments.get("hostId").toString());
-            return hostService.get(hostId).toString();
+            HostVO hostVO = hostService.get(hostId);
+            if (hostVO == null) {
+                return "Host not found";
+            }
+            return JsonUtils.indentWriteAsString(hostVO);
         };
 
         return Map.of(toolSpecification, toolExecutor);
     }
 
-    public Map<ToolSpecification, ToolExecutor> getByName() {
+    public Map<ToolSpecification, ToolExecutor> getHostByName() {
         ToolSpecification toolSpecification = ToolSpecification.builder()
-                .name("getByName")
+                .name("getHostByName")
                 .description("Get host information based on cluster name")
                 .addParameter("hostName", JsonSchemaProperty.STRING, JsonSchemaProperty.description("host name"))
                 .build();
@@ -68,8 +72,7 @@ public Map<ToolSpecification, ToolExecutor> getByName() {
             HostQuery hostQuery = new HostQuery();
             hostQuery.setHostname(hostName);
             PageVO<HostVO> hostVO = hostService.list(hostQuery);
-            log.info(hostVO.toString());
-            return hostVO.toString();
+            return JsonUtils.indentWriteAsString(hostVO);
         };
 
         return Map.of(toolSpecification, toolExecutor);
@@ -77,8 +80,8 @@ public Map<ToolSpecification, ToolExecutor> getByName() {
 
     public Map<ToolSpecification, ToolExecutor> getAllFunctions() {
         Map<ToolSpecification, ToolExecutor> functions = new HashMap<>();
-        functions.putAll(get());
-        functions.putAll(getByName());
+        functions.putAll(getHostById());
+        functions.putAll(getHostByName());
         return functions;
     }
 }
diff --git a/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/StackInfoFunctions.java b/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/StackInfoFunctions.java
index c243a12d..a2c9c398 100644
--- a/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/StackInfoFunctions.java
+++ b/bigtop-manager-server/src/main/java/org/apache/bigtop/manager/server/tools/functions/StackInfoFunctions.java
@@ -44,9 +44,9 @@ public class StackInfoFunctions {
     @Resource
     private StackService stackService;
 
-    public Map<ToolSpecification, ToolExecutor> list() {
+    public Map<ToolSpecification, ToolExecutor> listStackAndService() {
         ToolSpecification toolSpecification = ToolSpecification.builder()
-                .name("list")
+                .name("listStackAndService")
                 .description("Retrieve the list of services in each stack")
                 .build();
         ToolExecutor toolExecutor = (toolExecutionRequest, memoryId) -> {
@@ -58,7 +58,7 @@ public Map<ToolSpecification, ToolExecutor> list() {
                 }
                 stackInfo.put(stackVO.getStackName(), services);
             }
-            return stackInfo.toString();
+            return JsonUtils.indentWriteAsString(stackInfo);
         };
         return Map.of(toolSpecification, toolExecutor);
     }
@@ -85,8 +85,7 @@ public Map<ToolSpecification, ToolExecutor> getServiceByName() {
                                 }
                             }
                         }
-
-                        return serviceVO.toString();
+                        return JsonUtils.indentWriteAsString(serviceVO);
                     }
                 }
             }
@@ -98,7 +97,7 @@ public Map<ToolSpecification, ToolExecutor> getServiceByName() {
 
     public Map<ToolSpecification, ToolExecutor> getAllFunctions() {
         Map<ToolSpecification, ToolExecutor> functions = new HashMap<>();
-        functions.putAll(list());
+        functions.putAll(listStackAndService());
         functions.putAll(getServiceByName());
         return functions;
     }