Updates one page's metadata, selected by op. These are live writes: they change labels, routes or SEO immediately and do not go through the page draft. They never publish page content.

Operations:

• rename: sets the page name (1-191 characters) and prefix. Omitting prefix clears it.
• rename-custom: renames a CUSTOM page and changes its URL handle. Requires name, handle and the assignmentId of the CUSTOM assignment to change. Returns the handle actually written. A non-CUSTOM page returns 400; a handle already used by another custom page returns 409 CONFLICT. A page version is recorded after the rename.
• set-seo: upserts the page SEO. seo accepts title (max 70), description (max 320), keywords (max 500), canonicalUrl (URL), openGraph (title max 90, description max 200, image URL, type: website, article, product, profile or video.other), twitter (cardType: summary, summary_large_image, app or player; title max 70, description max 200, image URL) and robots (index, follow booleans). Empty strings are treated as unset.

Only pages this project owns exclusively can be changed; others return 404.

Required scope: content:write