YouTube starts to request design documents for api clients

[Former user]

We recently received a forwaded email by one of our clients, where we implemented a social wall using pb_social. YouTube / Google requests design documents relating to implementation, access and use of YouTube API Services. Did you guys already heard about this and is such a document available for pb_social?

Dear YouTube API Developer,

We are currently conducting a mandatory compliance review of your YouTube Data API Project. The review is to assess your compliance to our YouTube API Services Developer Policies (link) and to learn about how our service is being used.

At your convenience in the next seven (7) business days, please complete and submit the following information :

A fully functional demo account, including a username and password with which we may access your API Client. The demo account you provide will be used only for compliance inspection and the credentials will not be shared.
A fully completed YouTube API Audit Form
Screenshots of how your API Client and its users access and use the YouTube API Services
Documents relating to your implementation, access and use of YouTube API Services

For reference, your project number is xyz  

Please ensure that all required supporting materials are submitted and sufficient, and all questions are answered thoroughly. If this is not the correct or preferred API contact email, or if you would like us to cc any other contacts on future emails, please let us know. 

Thanks,

YouTube API Services team