A JSON value as plain Scala data: String, Boolean, a narrowed number, List, Map, and None for null.
A JSON value as plain Scala data: String, Boolean, a narrowed number, List, Map, and None for null.
Used wherever the wire carries something this SDK deliberately does not model — a tool's own input schema, a system entry's payload — and the value must survive intact for a consumer to read, without a type for it.