"API Request Failure: Empty Custom Command File Causes Persistent 400 Error"

Question

**Bug Description**
An empty custom command file will brick claude code. If you forget to save the file contents before launching, claude will send the empty prompt to the API which returns a 400. Since this is now in the chat history, all subsequent requests will also return a 400 effectively bricking Claude Code until restarting.

**Environment Info**
- Platform: darwin
- Terminal: iTerm.app
- Version: 1.0.34
- Feedback ID: aa6ec65a-09b5-4ea8-b136-db6a817bb3fa

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