I’ve solved:
Sorry the above was just another attemp. Yes it works with v-whatever-directive. @ouaR’s right! thanks!
But real issue was because Quasar treates anything outsider kind of like a plugin. So:
1- In quasar.conf.js file, go to plugins (make sure is not in framework.plugins array)
2- add there your directive’s filename. NOT the directive’s name
Done 🙂