Layout

schema is not layout. A field can keep the same id, validation, default value, and backend meaning while moving between one page, tabs, wizard steps, or a custom shell.

layout handles screen structure:

Layout idea	Meaning
stacked	Fields and reports render in order.
split	Built-in two-area primitive layout.
wizard	Step-by-step navigation over layout nodes.
tabs	Tab navigation over layout nodes.
section	Grouping node; can also behave as disclosure.
headless layout	createFormView() returns render-ready nodes and navigation state for your UI.

The same layout config can go through built-in kit mounts or a custom host. Built-in paths use mountForm(). Custom hosts use createFormView().

Keep field semantics out of layout metadata. Put labels, validation, ids, and backend keys in schema. Put grouping, ordering, steps, tabs, and review screens in layout.