When we started working on Coroot, we weren't sure if it would be possible to create such a product or not. In order to verify the initial hypotheses, we reproduced real-world failure scenarios in our staging environment and recorded their telemetry. Now we are able to replay this telemetry data, applying Coroot's inspections, to detect particular failures.

Along the way we discovered two things:

* Real-life telemetry data is noisy and inaccurate, so using this allows us to develop more accurate inspections.

* Replaying these scenarios is actually very entertaining!

At Coroot we call our library of recorded failure scenarios Failurepedia, and we want to share it with you.