You're a platform operator and you've managed to get cf-hoover deployed. It's happily aggregating usage data from multiple foundations. But now you want retain snapshot data across foundations spanning multiple collection intervals.
cf-archivist
closes this gap by allowing you to collect and persist snapshots in a time-series based schema. You may also define and manage query policies in a Git repo, then schedule execution of one, many or all of them, capture the results as email attachments, and finally send these to designated recipients.
There's also a basic user-interface that let's you filter and review detail snapshot data list applications and service instances.
(More capabilities are planned).