This lib is part of the Cubbles platform. I provides an api for a webpackage document, e.g. with a method for validation.
$ npm install cubx-webpackage-document-api
var WebpackageDocumentAPI = require('webpackage-document-api');
var webpackageApi = new WebpackageDocumentAPI(manifestWebpackage);
webpackageApi.setManifestWebapp(webappManifest)
webpackageApi.setManifestCubx(cubxManifest);
webpackageApi.setManifestComponent(webbleManifest);
var couchDocument = webpackageApi.getWebpackageDocument();
Issues: https://github.com/cubbles/cubx-webpackage-document-api/issues