Each extension provides meta-data describing the author/developer of the extension and any notes related to it.

This meta-data is contained in a manifest file which is called ‘ext.json’. Without the manifest, the extension cannot be loaded. The extension meta-data should include:

An example of an extension manifest is shown below.

{
  "extensionID": "f3acef8e-375a-11e4-9c85-ebc5b52923a8",
  "developerID": "987654",
  "createdBy": "Mega Corp",
  "name": "A Great Widget",
  "version": 1,
  "timeCreated": "2014-09-08",
  "description": "Short description of widget/extension purpose."
}