pub fn dev_entry() -> CatalogEntryExpand description
The row that tells a run this city is changeable, and nothing more.
One line in the resident segment, and the whole discipline behind an expansion. That split is the point: most sessions never change this city, so they pay a line; a session that is about to change it asks once and gets the evidence a change can be asked for, the reading order and what to do next. The same progressive disclosure the tool rows use, applied to the one capability an agent would otherwise never learn it has.