📰 LangChain Blog

By Vivek Trivedy TLDR: Agent = Model + Harness. Harness engineering is how we build systems around models to turn them into work engines. The model contains the

EPD (Engineering, Product, and Design) at software company is about creating good software. Separate roles exist, but the end goal is functional software that s

Learn how we built a GTM agent that increased lead conversion by 250% while saving each sales rep 40 hours per month

By Robert Xu Recently at LangChain we’ve been building skills to help coding agents like Codex, Claude Code, and Deep Agents CLI work with our ecosystem: namely

We’re releasing a CLI along with our first set of skills to give AI coding agents expertise in the LangSmith ecosystem. This includes adding tracing to agents,

We’re releasing our first set of skills to give AI coding agents expertise in the open source LangChain ecosystem. This includes building agents with LangChain

February gave us only twenty-eight days, but we made them count. From new Agent Builder capabilities to production monitoring insights, here's your monthly roun

You can't monitor agents like traditional software. Inputs are infinite, behavior is non-deterministic, and quality lives in the conversations themselves. This