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first_contas/docs/LANGFUSE_SINGLE_TRACE_OBSERVER_FIX.md
2026-06-16 20:54:49 -03:00

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# Langfuse single trace observer fix
This backend now uses `TelemetryBackedAgentObserver` instead of publishing IC/NOC/GRL through `AgentObserver(analytics=...)`.
Why: when analytics includes the Langfuse provider, observer events such as `IC.AGENT_COMPLETED` and `NOC.006` may create a second root trace with little detail. Emitting those events through `Telemetry.event(...)` keeps them inside the active request/workflow trace.