LangChain
Explained projects
Inside `langchain-ai/applied-ai-take-home-database`: The Synthetic Startup That Turns SQLite Into an AI Interview
A single database file, a full-text index, and a fake company world reveal a sharp hiring philosophy: the best applied AI candidates can retrieve, join, and verify before they generate.
async-deep-agents: The End of the Blocking Agent
How an ASGI transport layer and a clever state-machine middleware are turning monolithic AI scripts into truly non-blocking, background microservices.
The End of the Linear Pipeline: Inside langchain-ai/langchain
How the standard library for AI agents survived its monolithic origins by abandoning simple chains for stateful, observable graphs.
deepagentsjs: The Agent Framework That Treats Files Like Memory
A TypeScript harness for planning, sub-agents, and persistent state that makes long-running AI workflows feel like real software, not prompt glue.
deepagents: The Agent Harness That Treats Autonomy Like an Operating System
LangChain’s opinionated stack for planning, files, shell access, sub-agents, and human approval. It is less a chatbot framework than a controlled workspace for long-running work.
Yet to be explained
paid-media-agent
Explain
Open-source paid media agent for Google Ads, Meta Ads, Reddit, LinkedIn, X, and OpenAI Ads: analysis, reports, and reviewed changes, built on Deep Agents.
lca-deepagents
Explain
LangChain Academy Course on Deep Agents
google-adk-realtime-deepagents-example
Explain
Example realtime voice agent built with Google ADK and deepagents
lca-tutors
Explain
Tutor skills for LangChain Academy.
lca-engine
Explain
LangChain Academy Course on LangSmith Engine
deployment-cookbook
Explain
Documentation and examples around deploying LangChain agents
pipecat-langgraph-example
Explain
Example voice agent built with Pipecat and LangGraph
macaw-design-system
Explain
Shared design system for LangChain products
langchain-plugins
Explain
Cross-tool plugin marketplace for deepagents-code (dcode), Claude Code, and OpenAI Codex — LangChain & LangSmith skills and MCP servers
langsmith-cursor-plugins
Explain
LangSmith plugins for Cursor
lca-langsmith-essentials
Explain
LangChain Academy Course on LangSmith Essentials
homebrew-tap
Explain
Homebrew tap for LangChain formulae and casks
langsmith-plugin-binary
Explain
Shared build, sign, notarize and publish pipeline for the LangSmith plugin repos