src/recovery/factory_reset/meta/factory_reset.cmx

{
    "program": {
        "binary": "bin/factory_reset"
    },
    "sandbox": {
        "dev": [
            "class/block",
            "sherlock-emmc",
            "sys/platform"
        ],
        "services": [
            "fuchsia.hardware.power.statecontrol.Admin"
        ]
    }
}