LangChain says tracing is the foundational primitive for improving agents, and Junyang Lin argues "model+harness" now beats "model only" because agent performance depends heavily on harness quality.
Tracing is the foundational primitive for improving agents.
A trace gives you the full behavioral record of what an agent actually did.
model+harness is now over model only.
agent perf can be significantly influenced by the design and quality of harness.
This finding is one of many signals tracked across Artificial Intelligence. The live feed updates every few hours with new expert voices, debates, and emerging ideas.
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