Code inspection: Redundant [AttributeUsage] attribute property assignment

This inspection reports a property assignment inside [AttributeUsage(...)] when the assigned value is redundant. That happens when the value is the default anyway, or when a property such as Inherited does not make sense for the selected attribute targets.

Example

                using System;
                [AttributeUsage(AttributeTargets.Method, Inherited = true)]
                sealed class MyAttribute : Attribute
                {
                }
            

                using System;
                [AttributeUsage(AttributeTargets.Method)]
                sealed class MyAttribute : Attribute
                {
                }
            

Quick-fix

The fix keeps the attribute behavior the same while removing unnecessary noise from the declaration.

13 April 2026