A First Public Working Draft of Developing Localizable Manifests has been published.
This document provides definitions and best practices related to the specification of manifest files and similar document formats on the Web.
Some specifications on the Web deal with defining sets of files or resources to be consumed together. A common design pattern is to provide a manifest or configuration file that defines which resources are available and how various resources should be used or to provide various kinds of metadata about a collection of resources.
The document is still at a very early stage, and shows the intent, rather than reliable detail. Public comments are welcome, please raise them as github issues.