The Hallway Track
Product Launches

The Agent for Your Agent.

LangChain · Jun 23, 2026 · Product Launches

LangChain launched Engine, an agent that autonomously investigates traces and drafts PRs to improve other agents.

“We're working towards a future where agents improve themselves.”

LangChain announced Engine, an agentic tool that monitors an agent's traces, clusters failures into issues, drafts targeted code PRs with new evals, and verifies fixes in production. Customers like Vanta, Campfire, and Cogent have already surfaced thousands of agent issues, signaling a push toward self-improving agent engineering and automating the agent development life cycle.

langchain agents langsmith agent-observability developer-tools

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