Inspect every method as it's called

gistfile1.rb

module Breadcrumbs
  
  def self.included(mod)
    mod.extend ClassMethods
    mod.class_variable_set :@@__defined_methods, []
  end
  
  module ClassMethods
    def method_added(m)
      unless (meths = class_variable_get(:@@__defined_methods)).include?(m)
        class_variable_set :@@__defined_methods, meths << m
        meth = instance_method(m)
        remove_method(m)
        define_method m do
          puts "\n--------> \e[34m#{ self.class }\e[36m##{ m }\e[0m\n\n"
          meth.bind(self).call
        end
      end
    end
  end

end

Object.send(:include, Breadcrumbs)