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Operate a teammate host's desktop from an Ace channel #202
Description
Ace's native desktop tools only work on the channel's own execution host. While verifying #200, installing and checking Ace Canary on a second Mac (Nate16) needed macOS Screen Sharing, which a person drove through Codex. An Ace agent can't operate a teammate host's desktop: it can't install an update, open a channel, or watch "Loading chat" there.
Needed: a way for an agent to inspect and operate the desktop of another host the owner controls (for example, desktop tools forwarded through that host's Ace Helper, gated by the owner like local desktop tools). That would make two-Mac checks such as #39 and #10 possible from Ace.
Found while dogfooding (#5); related to native computer use (now githubnext/desktop-tools#11; Ace-side desktop validation is #427).
Activity
iamnbutler commentedon Oct 15, 2026
Still accurate on main (102fb15): native desktop tools run only on the channel's own execution host (
apps/host/src/desktop.tsneeds Ace open on that host), and nothing forwards them to a peer host. The two-Mac study (Oct 14–15, 0.0.24–0.0.46) hit this gap the whole way through: ChatGPT computer use drove Ace Canary on each Mac, and the lead reached Mac B over SSH. Updated the body's reference from #8 to githubnext/desktop-tools#11 and #427.