Most efficient way to use rules

Hi there,

I am new to Cursor. I built an e-commerce Blazor web application without using Cursor. Now I want to add some new functionality to this application.

I wonder what is the most efficient way to add rules? One big rule or separate rules would be more suitable?

Here are some sample rules for different purposes:
cursor Blazor rules.txt (4.9 KB)
cursor Bootstrap rules.txt (2.6 KB)

Thank you in advance.