Rules should be model specific, generated by each model for that model, switching models is making rule patterns unfamiliar. Let that boy COOK!
Always ask the model why that happened: Let that boy COOK! - #6 by vibe-qa
Do not write rules yourself. Do not copy rules from the internet or other existing projects. Always prompt the model you will use to analyze and translate the rules you need to add, into a format and context fitting to your project (which you have defined with framework setups, environment configs, feature description files). Sometimes it will break the format, ignore complete parts of the rules, or generate a larger output, this is telling of some issues with new rules integration into existing context.