OpenSLO is a [[Service level objective]] (SLO) language that declaratively defines reliability and performance targets using a simple YAML specification. It is released under Apache 2.0 and we welcome contributions from the reliability engineering ecosystem.
> Create declarative definitions of SLOs that describe thresholds, metrics, and goals for your applications and infrastructure.
You need something to actually implement the spec. That's [[Sloth]], or some other tool.
https://www.sloconf.com/
https://openslo.com/