Central hub for metric definitions that are considered the source of truth. For more information on how to add metric definitions please see the docs on docs.telemetry.mozilla.org
All metric definitions can be referenced in other tooling and their configurations, such as, jetstream or opmon.
Jetstream specific configs or defaults can be added in the jetstream/ directory.
OpMon specific configs or defaults can be added in the opmon/ directory.
Tool-specific configs take precedence over the metric definitions in definitions/ when used in the tooling, in all other contexts definitions/ is seen as the source of truth.