diff --git a/.gitignore b/.gitignore
index d9189c99..80bbaf0e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -98,7 +98,7 @@ playwright/.cache/
 
 # Midscene.js dump files
 __ai_responses__/
-
+midscene_run
 
 .nx/cache
 .nx/workspace-data
\ No newline at end of file
diff --git a/packages/midscene/src/insight/utils.ts b/packages/midscene/src/insight/utils.ts
index 2643b781..7edce177 100644
--- a/packages/midscene/src/insight/utils.ts
+++ b/packages/midscene/src/insight/utils.ts
@@ -19,6 +19,7 @@ import {
   getDumpDir,
   getPkgInfo,
   insightDumpFileExt,
+  stringifyDumpData,
   writeDumpFile,
 } from '@/utils';
 
@@ -55,7 +56,7 @@ export function writeInsightDump(
       logFileName = `${pid}_${baseData.logTime}-${Math.random()}`;
     }
   }
-  const dataString = JSON.stringify(finalData, null, 2);
+  const dataString = stringifyDumpData(finalData, 2);
 
   if (typeof logIdIndexMap[id] === 'number') {
     logContent[logIdIndexMap[id]] = dataString;
diff --git a/packages/midscene/src/utils.ts b/packages/midscene/src/utils.ts
index 4343a35c..ec5b4563 100644
--- a/packages/midscene/src/utils.ts
+++ b/packages/midscene/src/utils.ts
@@ -127,3 +127,17 @@ export async function sleep(ms: number) {
 }
 
 export const commonScreenshotParam = { type: 'jpeg', quality: 75 } as any;
+
+export function replacerForPageObject(key: string, value: any) {
+  if (value && value.constructor?.name === 'Page') {
+    return '[Page object]';
+  }
+  if (value && value.constructor?.name === 'Browser') {
+    return '[Browser object]';
+  }
+  return value;
+}
+
+export function stringifyDumpData(data: any, indents?: number) {
+  return JSON.stringify(data, replacerForPageObject, indents);
+}
diff --git a/packages/web-integration/src/common/agent.ts b/packages/web-integration/src/common/agent.ts
index fefa2774..ae6a7837 100644
--- a/packages/web-integration/src/common/agent.ts
+++ b/packages/web-integration/src/common/agent.ts
@@ -1,6 +1,10 @@
 import type { WebPage } from '@/common/page';
 import type { ExecutionDump, GroupedActionDump } from '@midscene/core';
-import { groupedActionDumpFileExt, writeDumpFile } from '@midscene/core/utils';
+import {
+  groupedActionDumpFileExt,
+  stringifyDumpData,
+  writeDumpFile,
+} from '@midscene/core/utils';
 import { PageTaskExecutor } from '../common/tasks';
 import type { AiTaskCache } from './task-cache';
 
@@ -41,7 +45,7 @@ export class PageAgent {
     this.dumpFile = writeDumpFile({
       fileName: `playwright-${this.testId}`,
       fileExt: groupedActionDumpFileExt,
-      fileContent: JSON.stringify(this.dumps),
+      fileContent: stringifyDumpData(this.dumps),
     });
   }
 
diff --git a/packages/web-integration/src/playwright/cache.ts b/packages/web-integration/src/playwright/cache.ts
index d27058f5..8cca510b 100644
--- a/packages/web-integration/src/playwright/cache.ts
+++ b/packages/web-integration/src/playwright/cache.ts
@@ -2,7 +2,11 @@ import fs from 'node:fs';
 import path, { join } from 'node:path';
 import type { AiTaskCache } from '@/common/task-cache';
 import { findNearestPackageJson } from '@/common/utils';
-import { getDumpDirPath, writeDumpFile } from '@midscene/core/utils';
+import {
+  getDumpDirPath,
+  stringifyDumpData,
+  writeDumpFile,
+} from '@midscene/core/utils';
 
 export function writeTestCache(
   taskFile: string,
@@ -13,7 +17,7 @@ export function writeTestCache(
   writeDumpFile({
     fileName: `${taskFile}(${taskTitle})`,
     fileExt: 'json',
-    fileContent: JSON.stringify(
+    fileContent: stringifyDumpData(
       {
         pkgName: packageJson.name,
         pkgVersion: packageJson.version,
@@ -21,7 +25,6 @@ export function writeTestCache(
         taskTitle,
         ...taskCacheJson,
       },
-      null,
       2,
     ),
     type: 'cache',