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A new 'device_mcp_consent' message format was added for approving MCP server changes on a device, though nothing yet appears to trigger it
What
A new internal message format called device_mcp_consent has been defined. It describes a consent prompt that would list MCP servers (Model Context Protocol servers, external tools Claude Code can connect to) that were changed or added on a device, with a default answer of "not now" if no response is given.
Why
This appears to be groundwork for a future feature asking you to approve MCP server changes per device; no part of Claude Code currently triggers this prompt.
Names in the bundledevice_mcp_consent
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No caller of this new message format was found, so it's unclear when or whether it is currently shown to users.