I have a Modder's Guide available at
http://www.mydocsonline.com
Login:hexagonia
password:hextapul
The guide concentrates on making changes to the various .txt files as they relate to adding new units/advances/wonders/city improvements, plus it contains some AI tweaks. To boost the AI though, you need to concentrate on the following files - which means that you should take a look at those files and make the adjustments that you feel you want to make
risks.txt - (barbarian settings)
Strategies.txt and goals.txt - (attack priorities)
const.txt - (various in-game settings)
DiffDb.txt - (difficulty settings for initial AI/Player setup and ongoing AI boosts)
The guide does not cover SLIC functions though.
I would suggest taking a look at the Mod files for Cradle and MedMod- and use them for a starting point to see what has been accomplished.
BTW, Cradle is available at that location too - it's worth the download. (but I am a bit biased)