Even when an arbitration agreement delegates arbitrability issues to the arbitrator, the court must decide whether an agreement to arbitrate was formed. Formation issues may not be delegated to the arbitrator. Here, no agreement to arbitrate was formed because the agreement purported to be between plaintiff and the corporate parent of plaintiff’s employer, yet the arbitration agreement never referred to the actual employer corporation and treated the corporate parent as if it were the employer. The separate corporate identity of the actual employer could not be ignored, and the arbitration agreement’s terms were inconsistent with treating the corporate parent as the other party to arbitration agreement as it was not, in fact, plaintiff’s employer.