Update site settings (visibility, slug, expiry, passcode, email gate, client space).

Display name. Kept when the page is updated or a version restored: later content does not rename it (GET shows title_custom: true). null/empty goes back to the page's own <title>.

The line under the name on a client portal and in link previews, up to 240 characters. Kept through updates like title (description_custom: true). null/empty goes back to the page's own description.

Publish at {slug}.stacktr.ee (public); null returns the page to unlisted.

Set a passcode (paid plans), or null to clear.

Hours from now, or null for no expiry. A number over the plan ceiling is clamped to it and the response says so (expiry_clamped: true). null (no expiry) on a capped plan is REFUSED with 409 expiry_clamped and nothing in the PATCH is applied, so an agent cannot report a 7-day page as permanent; send accept_clamp: true alongside it to take the ceiling instead. The response carries the whole expiry block: expires_at, expires_at_iso, ttl_seconds, expiry_clamped, expiry_ceiling_hours, expiry_source.

Accept the plan ceiling when asking for a page that never expires, instead of being refused. Ignored for every other value of expires_in_hours.

Require visitors to verify an email: domains and/or single addresses separated by commas ("acme.com, jane@globex.com"), up to 20 (paid plans), or null to clear. Mutually exclusive with password.

true takes the page offline (link serves the expired page); false brings it back. Reversible — content, view history and share links are kept.

Let a reader hand the page to their own ChatGPT or Claude through a two-hour review link ("Review with your AI"). Off by default.

On a page behind a passcode or an email check, a line at the foot lets the reader who got in copy the page as Markdown for their own assistant. On by default; false turns it off.

File the site under a client space by name or slug (auto-created), or null to detach it to a floating page. Filing also derives a stable space_path for the page.