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ai-engineer
Harrison Chase
LangChain co-founder; agent orchestration with tracing and evaluation attached.
Co-founded LangChain and leads the team behind LangChain, LangGraph, and LangSmith — libraries and services for composing tool-using LLM applications and then tracing and evaluating them once they are live. Writes publicly about agent architectures and the failure modes that show up in production.
Technical stack & depth
Agents
Tool use, multi-step orchestration, and recovery when a step fails.
Context management
What goes in the window, what stays out, and how state is carried across turns.
Evaluation
Evals, traces, and a quality bar that is not a vibe check.
Engineered solutions
- Repositorylangchain-ai/langchaingithub.com
Created and maintains LangChain, the orchestration framework behind LangGraph and LangSmith.
- Write-upLangChain engineering blogblog.langchain.dev
Public write-ups on agent architecture, evaluation practice, and observability.
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