* [go-check-plugins v0.53.0](https://github.com/mackerelio/go-check-plugins) – Collection of monitoring check plugins implemented in Go.

* [mackerel-agent v0.87.1](https://github.com/mackerelio/mackerel-agent) – Host-side agent that registers servers, collects system specs and metrics, and posts them to Mackerel for visualization and monitoring.