I'd suggest to drop the DSL, at the end of the day, a good old class with a constructor stored in a constant is much more more transparent:

    class PaymentService
      STRIPE_CIRCUIT = BreakerMachines::Circuit.new(
        threshold: { failures: 3, within: 1.minute },
        reset_after: 30.seconds,
        fallback: ->{ { error: "Payment queued for later" } }
      )

      def charge(amount)
        STRIPE_CIRCUIT.wrap do
          Stripe::Charge.create(amount: amount)
        end
      end
    end

Your 2 space credits are worth their weight in dilithium.

Funny thing is the gem originally started exactly like that, pure explicit constructors. Then I wrapped it with the DSL sugar but the explicit approach never lost its capability. Both paths lead to the same destination.

I actually loved this suggestion so much that I added a whole section called "Captain Byroot's Guide to Explicit Circuit Construction" to the docs:

https://github.com/seuros/breaker_machines/blob/master/docs/....

The resistance appreciates your feedback.