Seems the kubectl has build-in debug sub command, it conflicts with it

```
kubectl debug
error: you must specify --image when not using --copy-to.
```
https://kubernetes.io/docs/tasks/debug-application-cluster/debug-running-pod/#ephemeral-container

Start with the kubectl debug command and the linked Kubernetes documentation for ephemeral containers; determine how this plugin is invoked alongside kubectl's built-in command. Done means the conflict is resolved or a compatibility decision is documented, but the repository is marked as no longer maintained and points to another project.

Written by the indexing model from the issue text.