opentelemetry-trace-assertions

Per the [OpenTelemetry traces concept docs], a trace is "the path of a request through your application" and a span is "a unit of work or operation". Spans form a directed acyclic graph (DAG) via parent-child relationships, all sharing the same trace_id.

When to use

• Service is instrumented with OpenTelemetry SDK and the team's observability stack (alerts, SLOs) depends on specific span attributes - silent removal of an attribute breaks downstream alerting.
• Trace-shape changes have caused production incidents.
• Onboarding new instrumentation needs a regression baseline.

Step 1 - Install (per language)