@ilya.chernikov is there any feature i am overlooking that allows me to add extra .kt files to a script compilation ? the alternative would be to append it to the script that is being compiled which does not seems very clean

No, unfortunately there is no such feature. The planned feature for some quite near future is a script import. But other than that there is nothing like this planned. If you have a compelling use case, I guess it could be fruitful to discuss it e.g. here: https://github.com/Kotlin/KEEP/issues/75

my usecase is importing autogenerated code, mostly constants that cannot be known at the compiletime of the script without some insane gradle plugin steup where i compile a library out of them and doo magic to somehow make it all go in order without blowing up also put that into a comment on the KEEP