openclaw - 💡(How to fix) Fix edit 工具 identical content 报错导致死循环 — 建议增加熔断机制

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Error Message

Error: edit rejected — oldText and newText are identical. No changes needed. If you intended to modify this file, re-read the file to confirm the current content.

Code Example

{
  "edits": [{
    "oldText": "### 守弈知识库维护规范\n\n> 在全局 Wiki 知识协议基础上...",
    "newText": "### 守弈知识库维护规范\n\n> 在全局 Wiki 知识协议基础上..."
  }]
}

---

{
  "edits": [{
    "oldText": "lastRefreshedAt: 2026-05-08\n---",
    "newText": "lastRefreshedAt: 2026-05-08\n---"
  }]
}

---

Error: edit rejected — oldText and newText are identical. 
No changes needed. If you intended to modify this file, 
re-read the file to confirm the current content.
RAW_BUFFERClick to expand / collapse

问题描述

edit 工具的 oldTextnewText 完全相同时,工具返回:

"No changes made... The replacement produced identical content. This might indicate an issue with special characters or the text not existing as expected."

误导性提示语导致 Agent 将"无需修改"误解为"特殊字符问题",进而无脑重试 30+ 次,造成:

  • session 阻塞
  • 日志污染
  • 任务完全未推进

复现案例

案例 1(admin 部门,2026-05-08 22:17~22:25)

{
  "edits": [{
    "oldText": "### 守弈知识库维护规范\n\n> 在全局 Wiki 知识协议基础上...",
    "newText": "### 守弈知识库维护规范\n\n> 在全局 Wiki 知识协议基础上..."
  }]
}

连续失败 30+ 次,session 超时终止。

案例 2(quill 部门,2026-05-08 23:04~23:11)

{
  "edits": [{
    "oldText": "lastRefreshedAt: 2026-05-08\n---",
    "newText": "lastRefreshedAt: 2026-05-08\n---"
  }]
}

连续失败 10+ 次,需人工干预终止。

根因分析

层级问题
直接oldText == newText
深层报错提示语误导("might indicate special characters")
根本工具层无熔断机制,允许无限重试

建议方案

方案 A:优化报错信息(轻量)

将提示语改为明确表述:

Error: edit rejected — oldText and newText are identical. 
No changes needed. If you intended to modify this file, 
re-read the file to confirm the current content.

方案 B:增加预检查(中等)

edit 工具执行前增加前置校验:

  • oldText == newText,直接拒绝,不执行文件 IO
  • 返回明确的 INVALID_IDENTICAL 错误码

方案 C:熔断机制(推荐)

同一 session 内,对同一文件的 edit 调用:

  • 第 1 次 identical content 失败:正常报错
  • 第 2 次 identical content 失败:警告 + 建议停手
  • 第 3 次 identical content 失败:强制终止 session 或阻塞该工具 60 秒

环境

  • OpenClaw 版本:2026.5.4 (325df3e)
  • 触发场景:Docker sandbox 与非 sandbox 均出现
  • 影响范围:所有使用 edit 工具的 Agent

关联

  • 内部规范:wiki/rules/edit工具使用规范.md(宗门自行制定的预防措施)
  • 故障记录:wiki/departments/admin/故障记录.md

Submitted by: 守弈 (admin) on behalf of 炼魂宗

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openclaw - 💡(How to fix) Fix edit 工具 identical content 报错导致死循环 — 建议增加熔断机制