What is it to be able to intend to do something? At the end of her ground-breaking book, Agents’ Abilities, Romy Jaster identifies this question as a topic for future research. This article tackles the question from within the framework Jaster assembled for understanding abilities. The discussion takes place in two different spheres: intentions formed in acts of deciding, and intentions not so formed. The gradability of abilities has an important place in Jaster’s framework, and it is explained how abilities to acquire intentions of these two kinds -- including both general and specific abilities—can come in degrees, as she conceives of degrees of ability. Although Jaster “sympathize[s] with the idea that having an ability to intend to [A] is a matter of intending to [A] in a sufficient proportion of the relevant possible situations in which there is an overriding reason to intend to [A],” an alternative to this idea is developed.

能够打算做某事是什么？在她开创性的著作《特工能力》的结尾，Romy Jaster 将这个问题确定为未来研究的主题。本文从 Jaster 为理解能力而组装的框架内解决了这个问题。讨论发生在两个不同的领域：在决定行为中形成的意图，以及不是这样形成的意图。能力的可分级性在 Jaster 的框架中占有重要地位，它解释了获得这两种意图的能力——包括一般能力和特定能力——如何以程度来表示，正如她所设想的能力程度。