<!-- Thank you for contributing. These HTML comments will not render in the issue, but you can delete them once you've read them if you prefer! --> ### Bug description If the repo being cloned doesn't exist, the user gets a pretty inscrutable error <img width="1209" height="579" alt="Image" src="https://github.com/user-attachments/assets/a935a395-6b2d-46ac-a18b-e19a5c8628e5" /> It should be a clearer better error message