[Bug] /compact fails intermittently with "context too long" error

Question

**Bug Description**
Sometimes, when i use /compact, it returns a error saying that the context is too long, but when i close de claude and reopen the same chat, it works fine in the same session with the same context without change.

**Environment Info**
- Platform: win32
- Terminal: vscode
- Version: 2.0.10
- Feedback ID: 1f5be368-0cd5-4b16-9d43-7388510c3641

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