Does this exist, or has it been suggested:
a function that takes a sound and passes it and other keyword parameters for control values to another named plug in. Return whatever the plug in returns (whether a sound or not).
The main problem with that is for enabling Nyquist to find the other files.
See Robert’s “Little Helper” plug-in as an example of including external files: https://forum.audacityteam.org/t/nyquist-reference-in-a-nut-shell/26911/1
Making this work cross-platform is not pretty.