• Break up into portable vs non-portable objects? • Move out of core? (API predates robust extension mechanisms). • Allow for divergence (may the best Spec win)? ◦ Some evidence for convergence: Envoy xDS API
spec between implementations? • Is it sufficiently expressive? • What to should be “standard”? ◦ Termination (protocols, TLS) ◦ Description of the application routing (request → services)