What's "bad" in: 1. Having strong and documented boundaries at API level 2. Being able to generate clients from a server spec, so I don't have to write intero

What's "bad" in: 1. Having strong and documented boundaries at API level 2. Being able to generate clients from a server spec, so I don't have to write interop code anymore. 3. Being able to generate server client from a design document (the spec) - I did it just last week, and it works magically. Should I do it by hand? Swagger is bad only if you use it wrong, like it's the case with SOAP, Java, and other things which have good parts but have been misused so many times people got pissed of them.