Stop Confusing LangChain, LangGraph, and LangSmith | Full Breakdown

One thing worth calling out separately: once your agent starts acting inside real systems: booking meetings, updating CRMs, filing tickets – you hit a wall that LangChain, LangGraph, and LangSmith don't solve on their own: auth. Especially, in multi-tenant enterprise systems, you need answers for: Whose credentials does the agent use? What is the agent actually allowed to touch? And how do you prove a specific user authorized an agent? Scalekit is a drop-in auth and tool-calling layer built for exactly this. Try it free: https://tinyurl.com/5h9vssuv Resources: - System Design Course: https:…