Currently Confluence automation offers a page smart value and a space smart value. 

Many customers would benefit from allowing a page's space to be referenced directly from the page smart value, like this:

• page.space
• page.space.name
• page.space.key

While the space.name and space.key smart value does cover this, it's not always clear which space is being referred to. Attaching the space smart value to the page smart value can help eliminate confusion for users.

Workaround

One alternative is to use the page and space smart values separately. The space smart value will usually be made available from the trigger.

Another alternative would be to use Automation's Send web request action to access the REST API for Confluence , which would enable you to get the page's content returned as a smart value.