User-Scoped Memory in Deep Agents: What It Is and Why You Need It
Imagine you build one AI agent and 1,000 people use it. Alice tells the agent: "I prefer Python examples and concise answers." Later, Bob asks: "How…
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Understanding FilesystemBackend in LangChain's Deep Agents
In a previous example, we used StateBackend , where files belonged to a specific LangGraph conversation thread. This time, we are using something di…
Understanding Middleware in Deep Agents (With Runnable Examples)
If you've built even a simple AI agent, you've probably noticed that the "agent loop" itself is deceptively simple: the model gets a message, decide…
Model Context Protocol (MCP) for AI Agents: Why It Matters and What Changes Without It
AI agents are becoming more capable than simple chatbots. An agent can search the web, read files, query databases, create support tickets, work wit…