September 22, 2026
Fewer Blind Spots in AI Agent Chains: LangSmith Shows Model Decisions
On September 22, LangSmith updated trace viewing for Jev models: it now shows state, questions, choices, and answers separately.
Harrison Chase
@hwchase17
🖼️ We improved the interface for Jev models in LangSmith Agents are becoming complex systems with many LLM calls. Many LLM calls will resemble Jev — models that make decisions. We updated the trace viewer in LangSmith: it now makes these calls clearer — their state, questions, choices, and answers!
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Previously, model calls in an agent chain were viewed in the overall trace. Now LangSmith highlights calls where the model makes a decision and presents their parts more clearly.
Agents are increasingly built from many LLM calls. LangSmith expects many of them to resemble Jev models.
Next, complex AI agents will make more calls to models that make decisions.
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