For those who still play Stellaris 2.1: I created a new AI mod which is based on Glavius's work, but my mod goes much deeper and have a lot of unique features, leading to much better AI. And also I update it quite often, adding new stuff.

You can check proof of this and read detailed description here:
https://sp.zhabite.com/sharedfiles/filedetails/?id=2055544110

Thank you!