At the moment either you have it enabled, in which case it automatically runs on all KT files, or you have it disabled, and it does nothing.

in which case it automatically runs on all KT files

When I press

Run

on the IDE right?

No, it hooks into the analysis phase of the IDE, and shows up like other intentions/inspections the IDE is running. You can then have IntelliJ show the issues as ‘errors’. This only affects display, and not actual compilation/execution. Makes it jump out more in a text file.

Thanks for answering, Mike.