Change a content piece's slug
The URL of a piece is no longer fixed at the moment you create it.
Content
A content piece's slug could only be set when the piece was created. You can change it now, on the content detail page next to where the slug is shown, and an agent can change it through the update_content tool with new_slug.
If the piece is already published, the editor says so before you save: the public URL changes with the slug, and anything already linking to the old one stops working. The recorded live URL is updated to match, and both the old and new addresses are cleared from the cache so nothing serves the piece at an address it no longer has.
A slug another piece is already using is refused by name rather than failing as a database error.