I just put the API at the centre, everything else hangs off it: * The server implementation is type-checked against the API * The OpenAPI spec is generated fr

I just put the API at the centre, everything else hangs off it: * The server implementation is type-checked against the API * The OpenAPI spec is generated from the API. * The client is generated/checked against the API Any test-suite that operates using the client or server will then by definition be up-to-date with everything else.