Pattern
Multi-agent tracing across LangSmith, Phoenix, Langfuse
Extend the trace-tree mental model from Volume 7 to multi-agent systems by adding agent identity to spans, correlating cross-agent calls, and capturing inter-agent metrics, with the major observability platforms providing native support through OpenInference's multi-agent attribute conventions.
Classification — Observability pattern for tracing multi-agent systems.
Full entry
The complete treatment — problem, how it works, when to use it, sources, and examples — lives in the volume below.
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