tagged
#observability
Name spans for humans, query them by attribute Observing an agent Efferent keeps the span tree small, puts trajectory vitals on the run, gives streams and settled calls identical telemetry, and stamps the resolved model into durable history. Observability is built in; where it goes is a layer Observing an agent Spans, metrics, and logs are Effect built-ins, not a vendor SDK threaded through the core; one layer at the edge decides what gets exported and where.