Drafts uses templates to control how text is output in action steps. Templates allow for configurable values in actions to be dynamically constructed from text in your draft, insert timestamps, and other information, without needing to alter the text in your draft.
For most uses, Drafts’ own lightweight template engine is used to configure values. For some advanced uses cases requiring advanced features–like conditional blocks, loops, layouts–it may be desireable to utilize Mustache templates. Follow the links to below for details of the template tags available.