The requirements for T292147 say that we will first notify users who have added images to articles in the past 30 days before moving on to users who haven't added images to articles in the past 30 days. It also says that we will first notify users about articles on their watchlist they have edited in the past 30 days, before moving on to other articles on their watchlist.
This spike is to determine whether it's possible to know those things and access that information when generating notifications.
Acceptance Criteria:
[] Document whether we can determine whether a user has added images to any articles in the past 30 days
[] Document whether and how we can determine which articles on a user's watchlist they have edited in the past 30 days
[] If possible to determine that information, document whether and how we can access it when generating notifications
[] PM will update acceptance criteria for T292147 based on the above