Illusory promises: an agreement in which a party makes a promise in return that does not commit it to anything within the framework of the treaty. The language of a treaty is essential in determining whether the treaty is valid or not, so pay close attention to the wording of a treaty. If you`re trying to decide whether a contract is illusory or not, always ask yourself if the parties have limited their future options and how. If both parties have limited their future options, there is a valid contract. However, if one of the parties has not limited its future actions, its promise is illusory and the treaty is not applicable. An illusory contract exists between two parties, one promising a consideration so insignificant that no obligation is imposed. The consequence of such a significant promise is that the treaty is inapplicable. Reciprocity of commitment: the agreement of both parties to a contract to be bound in some way In Australian contract law, the existence of an illusory provision in a contract – whether for services, supply of goods, insurance, sale or otherwise – can have significant consequences for the ongoing contractual relationship between the parties and may lead to the cancellation of the contract. . .