x-go-name
`x-go-name` appears on schema objects and properties. Its value is a string. Used by 33 providers across 81 OpenAPI documents. Observed values include `Name`, `Description`, `Type`, `Id`. Consistent with sdk & code generation — this is inferred from where the key appears and what it carries, not from any published definition.
Where it appears
| Location in the document | Occurrences | |
|---|---|---|
| response | 223 | |
| schema | 22710 | |
| tag | 74 | |
| path | 2 | |
| operation | 1591 | |
| parameter | 19 | |
| header | 3 |
What its value looks like
| Value shape | Occurrences |
|---|---|
| string | 24622 |
Observed values
Sampled from the specifications, most frequent first.
Providers publishing it
All 33.
Why this is not in OpenAPI
Extensions exist because a provider needed something the specification would not carry. Most of what they hold is not the API contract at all — it is operational metadata about the contract: documentation, lifecycle, policy, provenance, and now agents. That metadata is usually better placed alongside the contract, in an Overlay or an APIs.json index, than crammed inside it. See everything else doing the sdk & code generation job.