ExtraCommands/extracommands/CustomCommandAttribute.cs

using System;

namespace ExtraCommands
{
    [AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
    public class CustomCommandAttribute: Attribute
    {
        public string Name { get; protected set; }

        public string Description { get; protected set; }
        public CustomCommandAttribute(string name, string description = "")
        {
            this.Name = name;
            this.Description = description;
        }
    }
}