[MODEL]

### Preflight Checklist

- [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Amodel) 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

### What Claude Actually Did

Szeretném ha ez volna rendszer fotoja

### Expected Behavior

Szeretném ha magyar nyelvü volna

### Files Affected

```shell

```

### 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

Sonnet

### Relevant Conversation

```markdown

```

### Impact

Critical - Data loss or corrupted project

### Claude Code Version

0909

### Platform

Anthropic API

### Additional Context

_No response_

The report names no files, tests, or code entry points and provides no conversation or reproduction steps. First obtain the complete prompt, conversation, and concrete affected-file details; only then define and verify a fix for the reported unintended modification.

Written by the indexing model from the issue text.