Observability

Logs, metrics and slow-query insights for every environment.

Logs

Terminal

npx tessera logs --env production --follownpx tessera logs --function welcome-email --since 1h

Metric	What it tells you
Request rate	API calls per second, by endpoint.
p95 latency	How long the slowest 5% of requests take.
Error rate	Share of requests returning 4xx or 5xx.
Rows scanned	Early warning for missing indexes.

Send logs and metrics to Datadog, Grafana or any OpenTelemetry collector from Project settings → Observability.

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