You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
Remote ToolsArea: what it touches
ImprovementsKind: in v2.1.259,
What probably matters to youSection of the release
MCP and device hooks now check e.isMuted?.() before answering a served-call request. When muted, the request is silently answered empty and logged as 'serving is switched off (emergency switch)', with a corresponding UI reason string explaining that remote tool serving was turned off by Anthropic via the emergency switch.
When this emergency switch is off, the client-facing message now says that any command a cloud session was running on the local machine was cancelled and Claude was told it may have partially run, rather than just stating that no new commands will run. A second, hooks-specific pair of messages mirrors this for plugins, confirming that hooks offered to cloud sessions are likewise suspended and resumed by the same remote emergency switch.
