Unclear Nothing shows this being used yet, so it is unclear whether any user can reach it.
What
Claude Code can pair with an extension on the same machine. That pairing link can now carry two more kinds of traffic, external configuration and external messages. They are passed on only when the other side reports that it can relay them.
Why
This looks like groundwork for the extension passing on messages from outside the pairing.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
Nothing shows this being used yet, so it is unclear whether any user can reach it.