ReAct Prompting with LangChain: Complete Guide to Agentic Framework & Tools | Generative AI

Опубликовано: 11 Февраль 2026
на канале: At A Glance!
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Uncover the power of ReAct (Reasoning + Acting) prompting with this comprehensive tutorial! 🌟 In this video, I break down everything you need to know about ReAct prompting, from its official definition to practical implementation, using LangChain’s agentic framework.

Here’s what you’ll learn:
✅ What is ReAct Prompting?

Understand the definition and the core concept behind ReAct.
✅ Workflow Breakdown:

Explore the ReAct process: Thought → Action → Observation.
✅ Prompt Template Mastery:

Learn how to craft an effective ReAct prompt with examples.
✅ Hands-On Implementation:

Step-by-step demonstration of the entire ReAct workflow.
Convert HuggingFace LLM URLs into endpoint objects.
Define custom tools from scratch using LangChain BaseTool.
Create tools for expression calculations and information retrieval.
✅ Agentic Framework in Action:

Initialize agents with LLM objects and tools.
Observe how LLMs think, act, and validate observations at runtime.
By the end of this video, you’ll have a crystal-clear understanding of ReAct prompting and how to build intelligent agentic frameworks from scratch. Perfect for AI enthusiasts, developers, and data scientists!

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