there is another way - instead of forbiding AI to buy slaves at all, you can tweak when they will do so:

go to *\common\defines\00_slaves.txt
inside place:
NAI = {
SLAVE_BUY_EC_THRESHOLD = 5000 # if AI have less energy credits than this, dont buy slaves
SLAVE_BUY_UNEMPLOYMENT_THRESHOLD = 1 # if any one planet has this many unemployed pops, don't consider buying slaves for it
SLAVE_BUY_HABITABILITY_THRESHOLD = 0.70 # if we cant find a planet with at least this much habitability for a prospective slave, dont buy it
}

Auto buy would be amazing!!!!!!!!!!!!!!!!!!!

Confirmed to work on 3.0.X - 3.1.2

Apparently this also disables selling your own slaves on the market. Nobody buys them.

This mod will do, though, although a rework would be much appreciated. Something with auto-buy if price below X (same as current resource market) or auction month once a year where highest bidder takes slaves home on end of month...
IMO, slave price MUST fluctuate based on supply&demand, not be fixed 500 energy creds modified by (easily edited with gene-engineering) traits

The AI wants more pops too, how else is the AI ever going to be able to compete with any decent player?

好耶

Hi!
Can you do to bring AI to the market once a month? That they would buy someone too.

同甘共苦震怒（滑稽）