diff --git a/gitlab-index.js b/gitlab-index.js
index c457463..9db90b9 100644
--- a/gitlab-index.js
+++ b/gitlab-index.js
@@ -152,7 +152,17 @@ server.registerTool(
         content: [
           {
             type: "text",
-            text: `成功创建Merge Request: ${result.web_url}\n标题: ${result.title}\n状态: ${result.state}`,
+            text: JSON.stringify({
+              success: true,
+              message: "成功创建Merge Request",
+              data: {
+                url: result.web_url,
+                title: result.title,
+                state: result.state,
+                iid: result.iid,
+                id: result.id
+              }
+            }, null, 2),
           },
         ],
       };
@@ -161,7 +171,11 @@ server.registerTool(
         content: [
           {
             type: "text",
-            text: `创建Merge Request失败: ${error.message}`,
+            text: JSON.stringify({
+              success: false,
+              message: "创建Merge Request失败",
+              error: error.message
+            }, null, 2),
           },
         ],
         isError: true,
@@ -205,7 +219,17 @@ server.registerTool(
         content: [
           {
             type: "text",
-            text: `成功合并Merge Request #${mrIid}:\n状态: ${result.state}\n已合并时间: ${result.merged_at}`,
+            text: JSON.stringify({
+              success: true,
+              message: `成功合并Merge Request #${mrIid}`,
+              data: {
+                iid: result.iid,
+                state: result.state,
+                mergedAt: result.merged_at,
+                mergedBy: result.merged_by?.name,
+                id: result.id
+              }
+            }, null, 2),
           },
         ],
       };
@@ -214,7 +238,11 @@ server.registerTool(
         content: [
           {
             type: "text",
-            text: `合并Merge Request失败: ${error.message}`,
+            text: JSON.stringify({
+              success: false,
+              message: "合并Merge Request失败",
+              error: error.message
+            }, null, 2),
           },
         ],
         isError: true,
@@ -243,7 +271,22 @@ server.registerTool(
         content: [
           {
             type: "text",
-            text: `Merge Request #${mrIid} 详情:\n标题: ${result.title}\n作者: ${result.author.name}\n状态: ${result.state}\n源分支: ${result.source_branch}\n目标分支: ${result.target_branch}\n创建时间: ${result.created_at}\n更新时间: ${result.updated_at}`,
+            text: JSON.stringify({
+              success: true,
+              message: `Merge Request #${mrIid} 详情`,
+              data: {
+                iid: result.iid,
+                title: result.title,
+                author: result.author.name,
+                state: result.state,
+                sourceBranch: result.source_branch,
+                targetBranch: result.target_branch,
+                createdAt: result.created_at,
+                updatedAt: result.updated_at,
+                description: result.description,
+                url: result.web_url
+              }
+            }, null, 2),
           },
         ],
       };
@@ -252,7 +295,11 @@ server.registerTool(
         content: [
           {
             type: "text",
-            text: `获取Merge Request详情失败: ${error.message}`,
+            text: JSON.stringify({
+              success: false,
+              message: "获取Merge Request详情失败",
+              error: error.message
+            }, null, 2),
           },
         ],
         isError: true,
@@ -281,7 +328,17 @@ server.registerTool(
         content: [
           {
             type: "text",
-            text: `成功关闭Merge Request #${mrIid}:\n标题: ${result.title}\n当前状态: ${result.state}`,
+            text: JSON.stringify({
+              success: true,
+              message: `成功关闭Merge Request #${mrIid}`,
+              data: {
+                iid: result.iid,
+                title: result.title,
+                state: result.state,
+                updatedAt: result.updated_at,
+                id: result.id
+              }
+            }, null, 2),
           },
         ],
       };
@@ -290,7 +347,11 @@ server.registerTool(
         content: [
           {
             type: "text",
-            text: `关闭Merge Request失败: ${error.message}`,
+            text: JSON.stringify({
+              success: false,
+              message: "关闭Merge Request失败",
+              error: error.message
+            }, null, 2),
           },
         ],
         isError: true,
@@ -322,7 +383,11 @@ server.registerTool(
           content: [
             {
               type: "text",
-              text: `获取当前分支失败: ${error.message}`,
+              text: JSON.stringify({
+                success: false,
+                message: "获取当前分支失败",
+                error: error.message
+              }, null, 2),
             },
           ],
           isError: true,
@@ -353,7 +418,18 @@ server.registerTool(
           content: [
             {
               type: "text",
-              text: `成功创建并合并Merge Request: ${mergeResult.web_url}\n标题: ${mergeResult.title}\n状态: ${mergeResult.state}\n合并时间: ${mergeResult.merged_at}`,
+              text: JSON.stringify({
+                success: true,
+                message: "成功创建并合并Merge Request",
+                data: {
+                  url: mergeResult.web_url,
+                  title: mergeResult.title,
+                  state: mergeResult.state,
+                  mergedAt: mergeResult.merged_at,
+                  iid: mergeResult.iid,
+                  id: mergeResult.id
+                }
+              }, null, 2),
             },
           ],
         };
@@ -363,7 +439,18 @@ server.registerTool(
           content: [
             {
               type: "text",
-              text: `成功创建Merge Request，但自动合并失败，请手动审核: ${result.web_url}\n标题: ${result.title}\n状态: ${result.state}\n错误信息: ${mergeError.message}`,
+              text: JSON.stringify({
+                success: false,
+                message: "成功创建Merge Request，但自动合并失败，请手动审核",
+                data: {
+                  url: result.web_url,
+                  title: result.title,
+                  state: result.state,
+                  iid: result.iid,
+                  id: result.id
+                },
+                error: mergeError.message
+              }, null, 2),
             },
           ],
         };
@@ -373,7 +460,11 @@ server.registerTool(
         content: [
           {
             type: "text",
-            text: `合并到test分支失败: ${error.message}`,
+            text: JSON.stringify({
+              success: false,
+              message: "合并到test分支失败",
+              error: error.message
+            }, null, 2),
           },
         ],
         isError: true,