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From Zero to First AI Agent: Build a Smart Research Assistant in 30 Minutes

1. Why Build an AI Agent? (The “What” and “Why”)

• Understand the difference between a chatbot (passive Q&A) and an agent (autonomous, tool-using, multi-step reasoning).
• Real-world use cases: automated web research, document summarisation, data extraction, and personalised content curation.
• Key tech stack overview: Python + LangChain + OpenAI API (or local LLM alternative) — no prior agent experience needed.

2. Setting Up Your Environment in Under 5 Minutes

• Install Python 3.10+, create a virtual environment, and pin dependencies (langchain, openai, python-dotenv, requests).
• Get your API key from OpenAI (or a compatible provider) and store it securely in a .env file.
• Verify the setup with a one-liner “hello world” call to the LLM — confirms everything works before you build.

3. Core Building Blocks: Tools, Memory & Prompt

• Define the agent’s “tools”: a web search function (DuckDuckGo or Tavily) and a URL content