Execution Tracing

You cannot debug an agent by staring at the final output. You need the trace.

LangSmith Integration

LangGraph sends full traces to LangSmith automatically. You can see:

• Every node entrance/exit.
• Latency of each step.
• Token usage of each step.
• Exact inputs and outputs of every function.

This is the "X-Ray" machine for your graph logic.