What
- In the headless-cloud attach/create path, when a session is serving tools, a new dedup store is created, gated by
hostedServeDialogsGateOn(which falls back to checking gatetengu_violin_chinrest). When present, it collects notices via a newonNoticecallback and exposes them throughcloudSession()'s newnoticesfield and a newonCloudSessionChangedhook. - The
cloud_sessioninit-frame schema used by the headless stream-json client gained anoticesarray describing device-serving events the user should be shown: MCP consent/reconsent/drop, hook run status, bash-from-home, and mute/unmute of served tools. - The notice store is a bounded map holding only the latest notice per key, with change subscription, so duplicate notices for the same event are deduplicated instead of firing ad hoc.
Why
This lets a cloud session view show the user what's happening on the host machine serving tools to it, such as a hook running or an MCP consent request, instead of those events being invisible or repeated, while the feature stays behind a gate until it's ready.
Names in the bundlenotices
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed since
Anthropic's documentation has since written up notices, on Claude Code changelog.
* Fixed scheduled routine and notification turns in remote sessions not receiving turn-start notices (newly available tools, MCP changes, date, todos) until after the first tool callchangelog see the edit
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agrees
Anthropic's documentation has since written up notices, on Claude Code changelog.
Anthropic's release notes agree
Improved the startup notice overflow line under the logo: it now reads "N more notices hidden" instead of "+N more · /status"