I kinda think of libraries vs scripts: the library implements how to do the lower level -- which things you can do, and takes care of doing it and the script

I kinda think of libraries vs scripts: the library implements how to do the lower level -- which things you can do, and takes care of doing it and the script deals with which things you want to do and when some examples: I made some opencv bindings for JS, and the library changes did the heavy image processing algorthims, and the JS script chose which ones to use with what parameters for some video game or another, there was a library for what an NPC can do, and scripts for how they act within the world, including things that are more like movie scripts detailing whow says what adn where they walk