[Zooko]

It seemed to me that the easiest way for the time-pressed Illwinter devs to make the game "AI-moddable" would be to publish the specification of the .2h file. The alternative of writing an API for the AI-mods to invoke is probably much more time-consuming.

Also, as a potential AI-modder myself I would probably prefer the open .2h files over the API.

Note that this is only for strategic AI mods. For tactical AI mods so that you can configure mages to stop casting Breath of Winter and killing all of their friends, or to cast Aim on the units that actually have ranged weapons instead of on the melee units, or to cast Flying on units that DO NOT ALREADY HAVE FLYING, and so forth, then you would require a different interface.