Square brackets are a good idea, and visually appealing, for these kinds of context-hinted prompts.

On Fri, Feb 14, 2025 at 2:06 AM Juri Linkov <juri@linkov.net> wrote:
>> Instead of project--switch-project-command, I'm using
>> project-prefix-or-any-command that already has
>> the project root in the prompt "[execute in %s]:".
>> So it's nice that project--switch-project-command
>> will have the same.
>
> Hey, do you think it should look more similar to the new addition as
> well? Something like:
>
> -  (project-any-command project-prefix-map "[execute in %s]:"))
> +  (project-any-command project-prefix-map
> +                       (concat
> +                        "Execute in `"
> +                        (propertize "%s" 'face 'font-lock-string-face)
> +                        "':")))

I think square brackets [execute in %s] look better
and will be in line with square brackets in defcustom crm-prompt
when we will push the patch from bug#76028 when no more fixes
for completing-read-multiple are needed to avoid merge conflicts.