LangSmith Engine clusters traces into issues and proposes fixes

BraceSproul · x · 2026-07-21

This repost repeats the description of LangSmith Engine: an in-product agent that analyzes traces, clusters issues, and proposes fixes.

The key takeaway is the same as the linked write-up: building and evaluating long-running agent workflows requires substantial engineering, especially around ambiguous trace analysis and evaluator design.

Related event: LangChain Introduces IssueBench for Long-Horizon Agents(3 posts)→

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