Cursor in particular but also others are extremely flaky when it comes to applying rules.

So the next generation of "rules" for Cursor, Claude Code, etc should have some predictability baked in, i.e. not be entirely driven by AI.

Having rules driven by a vanilla, non-AI program ensures that they're actually, consistently applied, with some logs showing if/how they were applied.

Of course, one can augment vanilla rules with some AI capabilities, but the main orchestration should resemble determinism.

I suspect that the main reason why this isn't a reality yet is because costs could easily skyrocket. Personally I'd be willing to pay the extra buck if that means that my comprehensive rule system is actually doing something.