Unless you're also writing your own graphics and game engine from scratch, if you're making a truly novel and balanced game, then it should not be possible to crank out code with AI. When working in engines, the bulk of the work is usually in gameplay programming so the fact that its code is so predictable should be concerning (unless the programming is effectively in natural language). Not spending most of your time testing introduced mechanics, re-balancing and iterating should be triggering alarm bells. If you're working on an RPG, narrative design, reactivity and writing will eat up most of your time.

In the case you're working as part of team large enough to have dedicated programmers, the majority of the roles will usually be in content creation, design and QA.