Bound Metric Cardinality Before Labels Explode

Every label you attach to a metric multiplies the number of separate series the system must track, and a single label that takes a different value on every request turns one metric into one series per call. The cost is quiet: storage grows, queries slow down, and the dashboard that used to load at once starts to time out. This skill covers bounding cardinality for agent telemetry: find the label that varies per request, bucket or drop it, set a budget on the number of series one metric may carry, and alert when the count grows faster than the work does. The goal is a metric that stays readable, not a label set that records everything.

Commands