I think you're running into something related to this spf13/cobra#1508, spf13/cobra#1509
I believe kubectl uses cobra which is adding those extra descriptions.
If you set an appropriate $COMP_TYPE cobra will stop doing it, but you will lose the descriptions e.g. lincheney/fzf-tab-completion@d88bf5b
or something like what ble.sh does where they detect and specially handle cobra completions akinomyoga/ble.sh@71d0736

@lincheney Thank you for the tip. Your project looks very nice.

I have two problems with this:

• I really like having the description and some extra information in the list. But because the formatting is not standardized, we can't safely extract the actual entry from each line. This is unfortunate.
• If we just use the candidates from the existing bash completion, we lose the recursive traversal of the files under the current directory.