Is this a wiki?+
Pages do a wiki's work, without a tree of their own. A page hangs under the area, project, goal or commitment it is about and inherits its place and its access from there. That is why we call it Pages.
What happens to the descriptions we have already written?+
They are pages already. The description of an area, a directive, a project, a goal or a commitment is its page, with the same text and the same name, and everything that reads descriptions works exactly as before. An area without a description shows no page until somebody writes one.
Who may write?+
Subpages are written by members and administrators who may read the thing the page belongs to. Guests and watch-only members read. An area that has reserved editing for its responsible people keeps that rule, and the description follows the rule it has always followed.
Can we share a page outside Kalends?+
Yes. A page can be shared with named people or published by a public link, and the link can be closed again. A page limited to certain people is not carried along when the page above it is shared.
Can we limit who reads a single page?+
Yes. The menu item Who may read limits the page, and everything beneath it, to chosen people and departments. Whoever limits the page stays in, administrators read every page, and nobody else sees it anywhere: not in the tree, not in search, not under Mentioned on and not through Ask Kalends. The area's agent never reads a limited page.
Do the tasks live in the page?+
No. Tasks live in projects and goals. The page refers to them with a live card, and a checklist in the text is formatting. Make it a task turns a checklist line into a real task, and the line is replaced by a reference to it.
Do we get the text out if we leave?+
Yes. The pages come with the export as a zip of Markdown files, one file per page, with the links written so they work in a vault. The files attached to the pages come along as they do today.
What do the pages cost?+
Nothing beyond the seats. A page's text does not count towards your storage, just as descriptions do not today. Attached files count as before.