> AI are unteachable, if you have given them a good prompt and they do something wrong 90% of the time you are shit out of luck.

If the Model makes repeated mistakes on the same subject matter, you can update your agent.md file, or you can add skills to deal with specific prompts, or you provide a better default harness.

The whole idea of coding agents is their harness makes a big difference vs a pure raw model.

> However AI cannot meaningfully handle feedback and learn

How do you think models are created? They are trained on feedback and learn.

Its not cheap but you can post train models. This is how custom models are mode, that deal with specific tasks more efficiently and accurately.

Example ... Composer? Its base Kimi v2.5 model that has been post-trained 2 weeks, to create Composer 2.5, what is a much better coding model.

Its literally trained to make less mistakes by feeding it correct data. Hell, a lot of the models you are using, are often the same base model, where v2.0 was the initial released model but the model keeps training, so when they release v2.1, its still the same model, but with more training time on feedback provided to v2.0.

LLM Models are not a cake you cook one time and they are done, and you start from zero again. If you have the money, and a powerful server setup, you can take a model like GLM 5.2 and post-train it, to reduce specific errors. Sure, you need a ton of money because its a large model.

But people have been doing this with 5M, 100M, 1B, 5B models for a long time already. To the point that some of the small models can do specific tasks, almost or better then some of the huge more general trained models.