Prevent Active Record Callbacks from creating new records

create_message.rake

namespace :create_message do
  desc "Creates a Message but prevents Notifications from being created on the after_create Callback"
  task :perform, [:message_content] => :environment do |task, args|
    # https://api.rubyonrails.org/classes/ActiveRecord/Suppressor.html    
    Notification.suppress do
      Message.create(content: args.message_content)
    end
  end

end

message.rb

class Message < ApplicationRecord
  after_create :create_notification
    
  private

    def create_notification
      Notification.create(content: "Foo bar baz")
    end
end