https://github.com/o6lvl4/sashiko

Concurrency-boundary observability for Ruby on top of OpenTelemetry — Thread / Fiber / queue / Ractor handoffs that vanilla OTel drops, plus a declarative trace DSL and tracer: DI for Box-aware multi-tenancy.

concurrency distributed-tracing observability opentelemetry otel ractor ruby ruby-box ruby4 tracing

Last synced: 01 May 2026