So we updated our uh stack to a new model and our agent start uh failing because it was not obeying the skills. Nothing was changed. Not a single line in the skill was changed but still it failed. And when when we dig under the hood what was happening it was that this like new model was very focusing on beginning of the skill and we had very critical instruction at the end of the skill. So that's why it's very important to run evals and skills without evals are really just wishful thinking. Skills are not the documentation and a lot of people treat them like that and skills are really the contracts versioned to a model. So whenever you're upgrading a model, make sure to rerun uh your eval.