Analyzing a Single MLflow Trace Trace Structure A trace captures the full execution of an AI/ML application as a tree of spans . Each span represents one operation (LLM call, tool invocation, retrieval step, etc.) and records its inputs, outputs, timing, and status. Traces also carry assessments — feedback from humans or LLM judges about quality. It is recommended to read references/trace-structure.md before analyzing a trace — it covers the complete data model, all fields and types, analysis guidance, and OpenTelemetry compatibility notes. Handling CLI Output Traces can be 100KB+ for complex…