The harness matters more than the model: building Ziya Code

I'm 17, and I build an AI coding tool called Ziya Code. This post is not a launch pitch. It's the part almost nobody writes about: the code around the model that decides what to do when the first answer is wrong. That layer is where reliability actually comes from, and most of it is plumbing you can build yourself. Here's the thesis I keep coming back to: A better model gives you a better first draft. A better harness gives you a correct final answer. Those are two different problems, and the…