[MODEL] opus 4.8 unwanted actions

Preflight Checklist

• [x] I have searched existing issues for similar behavior reports
• [x] This report does NOT contain sensitive information (API keys, passwords, etc.)

Type of Behavior Issue

Claude modified files I didn't ask it to modify

What You Asked Claude to Do

asked to fix a bug in my full stacks

What Claude Actually Did

<img width="1347" height="297" alt="Image" src="https://github.com/user-attachments/assets/36df32ba-36e8-421b-818e-ba0ab0ac5e0c" />
<img width="1161" height="365" alt="Image" src="https://github.com/user-attachments/assets/b1843da0-f9dc-4b29-b252-f12ae8c99837" />
<img width="1094" height="237" alt="Image" src="https://github.com/user-attachments/assets/e21a2fc1-54d1-47ab-8f38-651b7713970e" />
<img width="1419" height="619" alt="Image" src="https://github.com/user-attachments/assets/7114b13a-d69c-4c7c-8989-e267fe633e94" />

Expected Behavior

unwanted adds more delay in execution unnecessary tokens seen lot of time across sessions across repo only after latest release

Files Affected

Permission Mode

Accept Edits was ON (auto-accepting changes)

Can You Reproduce This?

Yes, every time with the same prompt

Steps to Reproduce

_No response_

Claude Model

Opus

Relevant Conversation

Impact

Critical - Data loss or corrupted project

Claude Code Version

2.1.158

Platform

Anthropic API

Additional Context

_No response_