LangChain Accounts

27 Articles

You don’t know what your agent will do until it’s in production

You can't monitor agents like traditional software. Inputs are infinite, behavior is non-deterministic, and quality lives in the conversations themselves. This article explains what to monitor, how to scale evaluation, and how production traces become the foundation for continuous improvement.

11 min read

How we built Agent Builder’s memory system

A key part of Agent Builder is its memory system. In this article we cover our rationale for prioritizing a memory system, technical details of how we built it, learnings from building the memory system, what the memory system enables, and discuss future work.

9 min read

Agent Observability Powers Agent Evaluation

You can't build reliable agents without understanding how they reason, and you can't validate improvements without systematic evaluation.

13 min read

How to Use Memory in Agent Builder

By Jacob Talbot Agent Builder gets better the more you use it because it remembers your feedback. Every correction you make, preference you share, and

4 min read

New in Agent Builder: all new agent chat, file uploads + tool registry

Today, we're expanding what you can do with LangSmith Agent Builder. It’s an big update built around a simple idea: working with

4 min read

monday Service + LangSmith: Building a Code-First Evaluation Strategy from Day 1

Learn how monday Service developed an eval-driven development framework for their customer-facing service agents.

Case Studies 8 min read

Improving Deep Agents with harness engineering

TLDR: Our coding agent went from Top 30 to Top 5 on Terminal Bench 2.0. We only changed the harness. Here’s our approach

8 min read

On Agent Frameworks and Agent Observability

Every time LLMs get better, the same question comes back: "Do you still need an agent framework?" It's a fair question.

Harrison's Hot Takes 4 min read

Join us for Interrupt: The Agent Conference

Interrupt - The Agent Conference by LangChain - is where builders come to learn what's actually working in production. This year, we'

1 min read

LangSmith is Now Available in Google Cloud Marketplace

Today, we're thrilled to announce that LangSmith, the agent engineering platform from LangChain, is available in Google Cloud Marketplace. Google Cloud customers can

4 min read

Context Management for Deep Agents

By Chester Curme and Mason Daugherty As the addressable task length of AI agents continues to grow, effective context management becomes critical to prevent context

5 min read

Deploy agents instantly with Agent Builder templates

Introducing the Agent Builder Template Library: a collection of ready-to-deploy agents for common tasks, equipped with the tools you already use.

agent builder 3 min read