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The HomeKit framework isn't available to native macOS apps, so iMCP had no way to inspect or clean up a home's accessories, rooms, scenes, and automations. This adds a Home service backed by a Mac Catalyst helper, iMCP Helper, that a nested xcodebuild step embeds in iMCP.app; iMCP launches it on activation and forwards tool calls over a loopback MCP connection, with the tool definitions shared between both apps so the usual service and per-tool switches apply.
The tools cover inventory and a full export, identify, renames, batch room assignment, room and zone management, characteristic reads and writes, and scene and automation management, with the removal tools annotated as destructive. The README documents the helper's build, signing, and discovery.
The branch also lets imcp-server select a Bonjour service type through IMCP_SERVICE_TYPE, so the MCP Inspector can talk to the helper directly, and fixes task cancellation and closure captures in Capture and StdioProxy for Xcode 27.