promtool

Prometheus tool

low risk

interactive breakdown — edit the command and press Explain
$ 
What it does

Check configs and rules; query Prometheus.

Examples
promtool check config prometheus.ymlValidate · explain & risk-check →
promtool check rules rules.ymlRules · explain & risk-check →
Related
curl
Open the full explainer →More in Debugging & Performance

Reference text is hand-written and may be incomplete — check man promtool for your version. Test destructive commands on a non-production system first.