diff --git a/server/chat_flow_tool_loop.py b/server/chat_flow_tool_loop.py
index b8b6db9..c5fd659 100644
--- a/server/chat_flow_tool_loop.py
+++ b/server/chat_flow_tool_loop.py
@@ -114,7 +114,7 @@ def _build_tool_approval_preview(web_terminal, function_name: str, arguments: Di
         content = str(args.get("content") or "")
         preview["file_path"] = args.get("file_path")
         preview["append"] = bool(args.get("append", False))
-        preview["content_preview"] = content[:4000]
+        preview["content_preview"] = content
         preview["content_length"] = len(content)
         preview["summary"] = f"write_file: {args.get('file_path') or ''} ({'append' if preview['append'] else 'overwrite'})"
         return preview
diff --git a/static/src/components/panels/ToolApprovalPanel.vue b/static/src/components/panels/ToolApprovalPanel.vue
index baf675a..80f2600 100644
--- a/static/src/components/panels/ToolApprovalPanel.vue
+++ b/static/src/components/panels/ToolApprovalPanel.vue
@@ -19,7 +19,7 @@
 
             <div v-if="isEditPreview(item)" class="approval-edit-preview">
               <div class="approval-path">{{ item.preview?.file_path || item.preview?.resolved_path }}</div>
-              <div class="tool-result-diff scrollable approval-diff">
+              <div class="tool-result-diff approval-diff">
                 <div
                   class="diff-line diff-remove"
                   v-for="(line, idx) in getEditOldLines(item)"
@@ -39,7 +39,7 @@
 
             <div v-else-if="isWritePreview(item)" class="approval-edit-preview">
               <div class="approval-path">{{ item.preview?.file_path }}</div>
-              <div class="tool-result-diff scrollable approval-diff">
+              <div class="tool-result-diff approval-diff">
                 <div
                   class="diff-line diff-add"
                   v-for="(line, idx) in getWriteLines(item)"
@@ -47,9 +47,6 @@
                 >
                   + {{ line }}
                 </div>
-                <div class="approval-note" v-if="isWriteTruncated(item)">
-                  内容过长，已截断展示
-                </div>
               </div>
             </div>
 
@@ -172,9 +169,4 @@ const getEditNewLines = (item: any): string[] => {
   return rows.map((row: any) => String(row?.content ?? ''));
 };
 
-const isWriteTruncated = (item: any): boolean => {
-  const text = String(item?.preview?.content_preview || '');
-  const length = Number(item?.preview?.content_length || 0);
-  return length > text.length;
-};
 </script>
diff --git a/static/src/styles/components/panels/_right-panel.scss b/static/src/styles/components/panels/_right-panel.scss
index 2958e21..83f0211 100644
--- a/static/src/styles/components/panels/_right-panel.scss
+++ b/static/src/styles/components/panels/_right-panel.scss
@@ -190,6 +190,13 @@
     border-radius: 6px;
     padding: 8px;
     background: rgba(0, 0, 0, 0.01);
+    scrollbar-width: none;
+    -ms-overflow-style: none;
+}
+
+.approval-diff::-webkit-scrollbar {
+    width: 0;
+    height: 0;
 }
 
 .approval-kv {