ListFragments enumerates the pages of the space or contest being addressed, which is how to discover what paths exist there. Filtering by parent returns one level of the tree — the children of a page, or the pages at the root for an empty parent — which is how a menu or a page browser walks it. Labels are free-form strings a client attaches to organise pages and listing can be narrowed by them; prefixed conventions seen in Eolymp's own content are a client convention only, as the platform attaches no meaning to a label and never acts on one. A reader who cannot see the whole space is shown public pages only: an unlisted page is left out here, although it can still be read by its path. A client building a menu asks for public pages through the visibility filter rather than relying on that, so that the menu it builds is the same one whoever is reading it. A search reads pages: a fragment which is a link has nothing to search and never matches one, though it is listed like any other.