A struct lists its fields under properties, one property per field name. A property wraps a schema and is not a schema itself. value is the schema the field's value must match. required says whether a value of the struct must include the field. description says what the field is for, and the editors show it next to the field.

See also

Struct schema: the variant that holds properties.

Closed map: a struct rejects keys it has no property for.

Extension: adds properties to a parent schema.

Typed documents: how the editors turn properties into fields.