my_spec.rb

require 'spec_helper'

describe MyClass do
  it 'does something', :wip do
  end
  
  it 'does something else' do
  end
end

spec_helper.rb

RSpec.configure do |rspec|
  rspec.treat_symbols_as_metadata_keys_with_true_values = true
  rspec.before(:each, :wip) do
    pending "Skipping since this example is WIP"
  end if ENV['SKIP_WIP']
end

usage

$ SKIP_WIP=1 rspec
# => Makes all the :wip examples pending
$ rspec
# => runs all examples (including :wip ones). :wip ones will report failures if they fail