Use case. Why is this important?
The Classic UI displays PromQL warning when running a query:

We could have the same in the new UI:

Prometheus.yml to reproduce:
remote_read:
- url: http://127.0.0.1:9090/test
read_recent: true
Hi @roidelapluie, I would like to solve this.
Hi @roidelapluie, I would like to solve this.
That would be awesome :) 馃憤
Most helpful comment
Hi @roidelapluie, I would like to solve this.