Validating and auto filling on edit form for new custom field type

I’m writing new custom field type on Forge and I need to validate user input and suggest value as an option (and fill that in if chosen by user)

I can’t find anything related to this on edit.jsx
I guess that would be something similar to onSubmit method like onTyping or onInput?

I’m aware there is validation section in manifest.yml but I need this to be working on every key up event, not on submit only.

Any hints are greatly appreciated.