Free Download AI Test Architect LangChain, LangGraph, RAG & MultiAgent QA
Published 8/2026
Created by Rahul Arora
MP4 | Video: h264, 1280x720 | Audio: AAC, 44.1 KHz, 2 Ch
Level: All Levels | Genre: eLearning | Language: English | Duration: 96 Lectures ( 16h 10m ) | Size: 7.3 GB
Master LangChain, LangGraph, RAG & ChromaDB in TS. Build an autonomous AI agent that write & heals Playwright tests
What you'll learn
Build production-grade AI applications in TypeScript using LangChain and Anthropic's Claude models Master LCEL (LangChain Expression Language) to compose chains, run steps in parallel, and stream responses Generate reliable, type-safe structured output using Zod schemas and Claude's tool-calling API Create custom tools that let an LLM read files, call APIs, run shell commands, and drive a browser Build complete RAG pipelines with document loaders, chunking strategies, embeddings, and ChromaDB Improve retrieval quality with metadata filtering, multi-query retrieval, re-ranking, and compression Debug, trace, and cost-monitor every LLM call using LangSmith Run automated evaluations on prompts - regression testing for AI, using skills you already have as a QA engineer Prototype AI workflows visually with Langflow and export them as working APIs Integrate Playwright with LangChain to generate specs and self-heal broken selectors Understand why simple agents fail - and use LangGraph to build stateful, cyclic, multi-actor systems instead Implement human-in-the-loop approval gates, checkpointing, and durable agent state Build a full Autonomous QA Agent: explores an app, plans tests, writes Playwright specs, runs them, diagnoses failures, and heals itself in a loopRequirements
Experience with any test automation framework (Playwright, Selenium, Cypress) is helpful but not required Typescript basics is covered from the scratch in the course Free accounts for LangSmith and ChromaDB (local install, no cost) No prior AI, machine learning, or Python experience neededDescription
Every QA automation engineer is asking the same question right now: how do I move into AI before AI moves past me?
This course is the answer - and it's built specifically for you, not for Python data scientists.
You already understand test frameworks, assertions, CI pipelines, and debugging flaky systems. Those are exactly the skills AI engineering needs. What's missing is the LangChain layer - and that's what you'll build here, entirely in TypeScript, using Anthropic's Claude models.
We start from absolute zero on LangChain. Your first API call. Your first chain. Your first tool. Then we go all the way to a multi-actor autonomous agent with cycles, persistent state, and human approval gates.
What makes this course different
Most LangChain courses stop at a chatbot. This one ends with anAutonomous QA Agent - a real, working LangGraph system that
Explores a live web app using Playwright Proposes a test plan and pauses for your approval Writes Playwright specs Runs them and captures failures Diagnoses whether each failure is a real bug, a flaky test, or a broken selector Rewrites the test and loops back to try againThat's not a toy. It's a portfolio piece that gets interviews.
You'll also master the tools teams actually pay for
LangSmith isn't an afterthought here - you'll use it from Section 8 onward to trace every agent decision, catch failures, and run prompt evaluation suites. As a QA engineer, you'll recognize it immediately: it's regression testing for LLMs.
VectorDBpowers a real RAG project - a searchable knowledge base over your own test suite, so you can ask "do we already have a test for this?"
Multi-Agent systems, Orchestration & Guardrails and many more practical concepts
Honest expectations
You'll see agents fail. We walk through what breaks, why it breaks, and how to build guardrails around it. Non-determinism is uncomfortable for testers - we address that directly instead of pretending it away.
By the end, you'll have shipped multiple working projects and one capstone that very few engineers can demo.
Enroll now and start building.
Who this course is for
Anyone who wants to learn LangChain and build autonomous AI Agents SDETs who want to build AI-powered testing tools QA automation engineers transitioning into AI/ML engineering TypeScript/JavaScript developers learning LangChain without switching to Python Test leads evaluating AI agents for their team Anyone who knows TypeScript and wants to build real autonomous agents, not chatbot demosHomepage
Code:
https://www.udemy.com/course/ai-test-automation-langchain-langgraph-rag-ai-agents
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