Prometheus: writing a custom metrics exporter
When to use
Use this skill for writing a custom metrics exporter in Prometheus. This skill specifically handles writing a custom metrics exporter and nothing else in the Prometheus family.
Procedure
Build a custom exporter exposing /metrics with correct types (counter/gauge/histogram) and labels.
Notes
This is the Prometheus skill dedicated to writing a custom metrics exporter. Sibling skills cover other Prometheus capabilities; this one is the right choice only when the task is about writing a custom metrics exporter.