Jeffrey: A registry is an interface. The things in the registry has to define the algorithms, etc, that the calling spec expects to be there. Otherwise you have undefined behavior and implementations have to guess. So it is important that registration rules say what is expected by this registry, and that needs to match what's in the spec. If that happens, no architectural review is required for the entries.

Brian: In this case, the registries all exist.

Jeffrey: I don't think these to have the problem I described, but we do have to check. Another architectural failing could be when companies add proprietary entries such that there is no real interoperability.

Heather: I want to take another look at this with the above ideas in mind.

Heather: This turns into a meta-question. I thougth the question about a registry was interesting. I took some time to learn how I would do such at hting, that led me to interact with ChatGPT a bit. It came up with two questions: "For the HDCP registry, are all of the semantics needed by getStatusForPolicy()—including any version ordering or compatibility assumptions—fully defined outside the registry? For registries that permit an underlying specification not to be public, can an independent implementation nevertheless implement all Web-facing behavior of the registered entry solely from publicly available specifications?"

Heather: I think they're good questions, but they came from an LLm, so I'm not sure what to do with them,

Lola: I can remember one instance of a registry in my tenure on TAG. The conclusion was "this shouldn'tbe a registry."

Jeffrey: It sounds lke those are questions abot the design of the registry. Regardless of th equestion's providence, if it's a good question, we should ask it. The second one sounded like an interface question ("does the registry have the right fields?") I would want to verify the assertion about the carhacter of the registry. But that seems like an easier one to answer.

Heather: I'll ask those questions for clarification, and we'll decide on a resolution based on their response.

Lola: Do you want someone to join you?

Heather: Sure

Jeffrey: can you check the "get status for policy" question?

Heather: sure

Hadley: We prreviously talked about duplicating existing registries. That's sometihng else to consider.

Lola: I'd like Heather to help us understand if this should be a registry, and to Hadley's point, make sure there aren't existing registries that could be used/extended.