Unclear Only the field's description is known to have changed, so it is not clear whether the host name is actually withheld in practice.
What
The Claude Code SDK lets programs use Claude Code. When the SDK reports on an MCP server, which is an outside program that gives Claude extra tools, it can include the server's host name. The description of that field now says it is left out outside a worker known to be hosted by Anthropic, when configuration is withheld. It gives the reason: a self-hosted runner, meaning a machine you run yourself, could reveal the name of a machine on a customer's network.
Why
Host names from your own network are not meant to be exposed when Claude Code runs on a self-hosted runner.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
Only the field's description is known to have changed, so it is not clear whether the host name is actually withheld in practice.