Well let's turn the statement around then: can you create a OpenAPI YAML by hand then? At least with XML and XSD you have proper auto complete.
I really no need see the need to use a schema for JSON. The only thing it has going for it compared to SOAP/XML is the fact the it faster parsing and that it has no schema.
I really no need see the need to use a schema for JSON. The only thing it has going for it compared to SOAP/XML is the fact the it faster parsing and that it has no schema.