Cargo CLI — Observability Alerts. An alert is a scheduled threshold check. On every cron tick it measures a scope (what to watch), compares the measured value against a threshold (the breach condition), and on breach fires actions — each as its own run — and records an event . This is the proactive counterpart to : diagnostics explains a failure after you notice it; an alert tells you the moment a metric crosses a line. Everything lives under one CLI domain: Bootstrap Already signed in ( returns a workspace)? Skip to the next section. Every command prints JSON to stdout; failures exit non-zer…