Automatically run infix after transient-setup

[karthink]

Is there a way to automatically run an infix belonging to a prefix after setting up the prefix with transient-setup?

In this transient:

I'd like to save a keystroke by automatically running the d option ("Rewrite instruction"), which prompts for a string from the minibuffer. (The prefix code is here, and the infix that needs to run is right after.)

I was thinking of running the infix from a self-removing transient-setup-buffer-hook, but I couldn't tell from the code if this hook runs too early in the process for this. I'm also not sure how to run the infix programmatically, since (i) its function definition is just transient-default-infix-command and (ii) it's marked as interactive-only.

Any idea what the best way to go about this would be?

[tarsius]

This could proof rather difficult and fragile.

It seems it would be better to read that value before calling transient-setup and then passing the read value using :scope. (transient-define-prefix can be called with an explicit body to achieve that, instead of relying on the default body that is used when none is specified.)

[karthink]

It seems it would be better to read that value before calling `transient-setup` and then passing the read value using `:scope`. (`transient-define-prefix` can be called with an explicit body to achieve that, instead of relying on the default body that is used when none is specified.)

Thank you for the response @tarsius! I'll try using the :scope, following the example of magit-branch-configure.