Code inspection: Type can be made file-local

This inspection reports a top-level type that is only used inside the same source file and can therefore be declared file. Using a file-local type keeps the API surface smaller and makes the intended visibility explicit.

Example

                class Helper
                {
                }
                class Consumer
                {
                    private readonly Helper _helper = new Helper();
                }
            

                file class Helper
                {
                }
                class Consumer
                {
                    private readonly Helper _helper = new Helper();
                }
            

Quick-fix

Change the type declaration to file.

29 March 2026