[Bug] AI initiates fixes without user approval and dismisses scope changes silently

**Bug Description**
ai dismisses items as additional scope without informing, ai when asking a question immediately starts fixing something while i dont like the initial solution

**Environment Info**
- Platform: darwin
- Terminal: Apple_Terminal
- Version: 2.1.260
- Feedback ID: 937d941d-07a6-41a9-b7a5-cfa4e3fae014

**Errors**
```json
[]
```

Start from the reported environment: Claude Code 2.1.260 on darwin in Apple_Terminal, and use Feedback ID 937d941d-07a6-41a9-b7a5-cfa4e3fae014 if maintainers have access to the session. The issue does not name files, commands, or a minimal reproduction, so first determine the exact prompt flow where the AI starts fixing without approval. Done means the undesired auto-fix and silent scope dismissal behavior is reproduced and has an agreed expected behavior.

索引モデルが issue の本文から書いたものです。