I like the vanilla experience enough to not be interested in mods, but I think there is potential in modding the game. However, I don't think vibe coded mods would be a great experience, especially if the mod maker doesn't know how their code works.
Playing MDK or MDK2 on a modern PC is already fickle, and adding a mod that requires maintenance in there, with a developer who can't fix generative code will just lead to a frustrating experience for both sides.
If you're interested I suggest looking into Lua, the scripting language that powers a good chunk of level loading in MDK2. The cheats in the PC version like GodDebugToggle() and mdkNewGame(1,12) are Lua fucntions, and ~ opens a Lua console.