{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "definitions": {
        "app": {
            "type": "string",
            "description": "the shortCode of an app"
        },
        "appList": {
            "type": "array",
            "items": {
                "$ref": "#/definitions/app"
            }
        }
    },
    "type": "object",
    "additionalProperties": false,
    "properties": {
        "installs": {
            "description": "apps to be installed",
            "$ref": "#/definitions/appList"
        },
        "unInstalls": {
            "description": "apps to be uninstalled",
            "$ref": "#/definitions/appList"
        }
    }
}