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Introducing: LangSmith Agent Builder

Introducing: LangSmith Agent Builder

LangChain January 22, 2026
LangSmith Agent Builder enables anyone to build agents using natural language: - Describe your goal in your own words. Agent …
 
Introducing /remember: Teaching Agents to Learn from Experience

Introducing /remember: Teaching Agents to Learn from Experience

LangChain January 22, 2026
🧠Shipping /remember in the Deep Agents CLI: a primitive for persistent agent memory How it works: - inject a reflection …
 
LangChain Academy New Course: LangSmith Agent Builder

LangChain Academy New Course: LangSmith Agent Builder

LangChain January 21, 2026
LangSmith Agent Builder enables anyone to build agents for complex daily tasks, without writing code. It’s simple. You start by …
 
LangSmith Agent Builder Technical Highlights

LangSmith Agent Builder Technical Highlights

LangChain January 20, 2026
Six technical features central to LangSmith Agent Builder: 1. It's built on the Deep Agents harness 2. The agent is …
 
3 Hidden Features That Make AI Agents Production-Ready

3 Hidden Features That Make AI Agents Production-Ready

LangChain January 20, 2026
In this video I walk through 3 less-known features that make agentic apps feel actually production-ready, using real code from …
 
Building with Subagents: Design Decisions

Building with Subagents: Design Decisions

LangChain January 16, 2026
The subagents multi-agent pattern is straightforward—but the implementation details really matter for performance. In this video we break down the …
 
Choosing the Right Multi-Agent Architecture

Choosing the Right Multi-Agent Architecture

LangChain January 15, 2026
When do you actually need a multi agent system? And how should you decide what architecture to use? In this …
 
Build Better Agent UX: Streaming Progress, Status, and File Ops with LangChain

Build Better Agent UX: Streaming Progress, Status, and File Ops with LangChain

LangChain January 15, 2026
Build agent UIs that feel instant: stream **custom events** from LangChain tool calls (progress, status, file operations) straight into React …
 
How I built an AI agent to automate my emails with LangSmith Agent Builder

How I built an AI agent to automate my emails with LangSmith Agent Builder

LangChain January 13, 2026
LangSmith Agent Builder is a no-code agent builder. I built an email assistant to monitor and respond to emails, that …
 
Streaming Typed Agent Messages in LangChain and React

Streaming Typed Agent Messages in LangChain and React

LangChain January 13, 2026
Most “streaming” agent UIs are built around token streams. That works — until you try to build a real UI. …
 
LangSmith Agent Builder: On the street in San Francisco

LangSmith Agent Builder: On the street in San Francisco

LangChain January 13, 2026
Join Brace as he finds VCs in South Park, San Francisco and shows them how to build agents to solve …
 
How Cursor Builds the Future of AI Coding Tools

How Cursor Builds the Future of AI Coding Tools

LangChain January 8, 2026
Harrison Chase and Cursor's Jason Ginsberg discuss the evolution of coding agents, from tab completion to agentic workflows. Learn how …
 
Ralph Mode for Deep Agents: Running an Agent Forever

Ralph Mode for Deep Agents: Running an Agent Forever

LangChain January 7, 2026
🫡 Ralph Mode for Deep Agents 🫡 What if you could give an AI agent a task and just let …
 
Learning Skills with Deepagents

Learning Skills with Deepagents

LangChain December 23, 2025
The biggest gap between AI agents and human intelligence is the ability to learn. There are various emerging approaches to …
 
Tracing Claude Code to LangSmith

Tracing Claude Code to LangSmith

LangChain December 19, 2025
Curious what Claude Code is doing behind the scenes? Or want observability into critical workflows that you’ve set up with …
 
Approaches for Managing Agent Memory

Approaches for Managing Agent Memory

LangChain December 18, 2025
Humans refine their skills and learn preferences through experience. But many AI agents lack this capacity for continual learning. Here, …
 
LangChain Academy New Course: Introduction to LangChain - Python

LangChain Academy New Course: Introduction to LangChain - Python

LangChain December 18, 2025
Learn how to build with LangChain – our open source framework that makes it easy to start building agents with …
 
Build an MCP Agent with Claude: Dynamic Tool Discovery Across Cloudflare MCP Servers

Build an MCP Agent with Claude: Dynamic Tool Discovery Across Cloudflare MCP Servers

LangChain December 18, 2025
In this video, Christian Bromann build and demo an agent that uses LLM provider native tools—specifically Anthropic Claude’s built-in MCP …
 
The agent development loop with LangSmith + Claude Code / Deepagents

The agent development loop with LangSmith + Claude Code / Deepagents

LangChain December 17, 2025
LangSmith provides a system of record for traces, which can include long agent trajectories. Code agents like Claude Code or …
 
I Let an AI Control My Browser to Play Tic-Tac-Toe - LangChainJS Tutorials

I Let an AI Control My Browser to Play Tic-Tac-Toe - LangChainJS Tutorials

LangChain December 16, 2025
What if an AI could **actually use the browser** — not through brittle scripts, but by *seeing* the UI and …
 
Building & Observing a Deep Agent for Email Triage with LangSmith

Building & Observing a Deep Agent for Email Triage with LangSmith

LangChain December 15, 2025
In this video, we walk through how to build and observe a deep agent using LangSmith. We’ll build a simple …
 
Observing & Evaluating Deep Agents Webinar with LangChain

Observing & Evaluating Deep Agents Webinar with LangChain

LangChain December 12, 2025
Explore the unique challenges of observing and evaluating Deep Agents in production. Deep Agents represent a shift in how AI …
 
Trace OpenRouter Calls to LangSmith — No Code Changes Needed

Trace OpenRouter Calls to LangSmith — No Code Changes Needed

LangChain December 11, 2025
OpenRouter's new Broadcast feature lets you send all your traces directly to LangSmith with no code changes required — whether …
 
LangSmith Fetch: CLI tool to debug agents from your terminal

LangSmith Fetch: CLI tool to debug agents from your terminal

LangChain December 10, 2025
Learn how to debug agents from your terminal using LangSmith Fetch, the new CLI that brings LangSmith trace data directly …