type can now return "prompt"

What changed

Producer-side tools call this additive. It breaks exhaustive switches, strict parsers and generated client enums.

Affects type on VoiceResource reachable from 1 operation.

New value: prompt.

can now return "prompt"

Who is affected

Code that reads OpenAI's VoiceResource objects, used by 1 OpenAI operation.

Before and after

Code that breaks

switch (response.type) {
  // existing branches …
  // no branch for "prompt"
  default:
    throw new Error("unexpected type");
}

Based on OpenAI’s published API specification. How severity is decided.