T.object

A structure: the primitive most other things compose inside.

See Objects for the full treatment of nesting, computed fields, sequences, and overrides, and Composition for .extend / .refine / .override.

Field-only rules that only make sense inside an object: T.omittable, T.optional, and compute via .refine(({ compute }) => ...) (never T.compute). For a schema that references itself, see T.recursive.