The Attila AI has a lot to deal with compared to Rome 2's attack your neighbor AI. It is 4X more complex on the programming side.
The tables posted actually link to other tables which will give you more insights into reliability. Regarding Greq's AI mod, I have a comparable one that is not as scary as it looks:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1526012774

Thank you kind Sir. This mod, your diplomacy mod and the AI mod of Greq7seem to make up for a sweet combination that I'm looking forward to enjoy with my next game.

It's a shame that modders have to be doing CA's job again, to give the AI some kind of rationality and keep it interesting to interact with.

Added photos of a compressed and shortened personalities table. When you see the character in-game, lookup the display from the far right column and match it with the one and only one personality key. This provides more details about the faction personality.

I find it disturbing that you can spend 10000-30000 supporting an ally who turns out to be a backstabber. There are not enough diplo options to find that out. It would take some complex scripts to find that out through a diplomatic mission.

It would be appreciated, and there is obviously no urgency.

It's as you say at the moment, where I see a number next to the ruler, but without some kind of chart, there isn't much I can do with it.

Ideally this kind of information (reliable faction or not) could be retrieved through some in-game plot and spying on foreign rulers with your agents, but that might be substance for another mod.

Thank you for your reply, and precisions.

There are about 40 personalities and only 10 or so are unreliable at the start. This mod displays the personality number and the main attributes of that personality. You need to look in the packfile to find out more about it. Know that the personality changes 3 times during the game at least. The first around turn 36? depending on your mod. It also changes when a faction is liberated which is why MAGA is key. Let them die if they're your enemy or unreliable.
Use RPFM to open up personalities. I can try to find time to post it this weekend but no guarantees.
The purpose is to help players and modders to see how altered mod values affects AI performance.

Hello,

How can I use this mod as a player ? Is there a table somewhere which tells me what personality links to which policies ? I mean, most AIs don't mind turning unreliable quick, is there a way to filter out the reliable ones somehow ? How can it help me to better "understand" the AI ?

Sorry if I'm missing the obvious, and thank you for creating and sharing the mod with us.

interesting