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Daniel Azevedo
Daniel Azevedo

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AG-2 in Practice #1 – What is AG-2 and How Does It Work?

Hey everyone!

I’m starting a new blog series for anyone who wants to learn how to use AG-2, the successor to OpenAI’s AutoGen, in real-world scenarios. AG-2 is a big leap forward for building smarter, more collaborative, and truly autonomous AI agents.

In this first post, we’ll break down what AG-2 is, how it works under the hood, and why you should care if you’re working with LLMs and intelligent automation.


What is AG-2?

AG-2 (https://ag2.ai) is an open-source framework for building and orchestrating multi-agent systems powered by LLMs (large language models), with or without human interaction.

It lets you create specialized agents that can talk to each other, collaborate, access external tools (like APIs, scripts, or databases), and make decisions in a coordinated way — all with fine-grained control over their behavior and interaction logic.

AG-2 evolved from OpenAI’s AutoGen project, but it’s now a more robust, modular, and independently maintained framework focused on productivity, transparency, and real-world experimentation with agent-based AI.


What’s New Compared to AutoGen?

AG-2 brings a number of key improvements:

  • More modular and scalable architecture
  • More transparent and customizable orchestration
  • Full support for external tools and APIs
  • A new visual interface: AG2 Studio
  • Built-in support for human-in-the-loop workflows

Why Use AG-2?

If you're exploring applied AI, here’s why AG-2 stands out:

  • Build complex reasoning pipelines using specialized agents
  • Create autonomous assistants that use tools and services
  • Simulate debates, collaborations, or multi-step reviews
  • Integrate different LLMs and roles into a single coherent system
  • Develop AI systems that are observable, explainable, and controllable

How Does AG-2 Work?

AG-2 is based on four core components. Let’s break them down:

1. Agents

These are the “characters” in your system. Each agent has:

  • A configured LLM
  • A specific identity or role (e.g., “writer,” “reviewer,” “researcher”)
  • Customizable behavior (via prompts, templates, or code)
  • Optional access to external tools

You might have one agent writing text, another fact-checking, and a third validating output — all collaborating in one workflow.


2. Orchestrators

This is the brain of the system. The orchestrator handles:

  • Who talks to whom
  • When agents should act
  • How to manage loops, exceptions, and termination
  • What to do in case of errors or unexpected replies

Think of it like a “director” guiding the cast of agents through the script.


3. Patterns

These are ready-made interaction templates, such as:

  • Linear pipelines with human review
  • Expert debates
  • Task delegation with quality checks
  • Collaborative problem-solving

You can use built-in patterns or create your own for full control over agent workflows.


4. Tools

Tools are external functions agents can call, such as:

  • Running Python code
  • Making HTTP requests
  • Querying knowledge bases or local files
  • Accessing structured databases

These work similarly to ChatGPT plugins, allowing agents to interact with the outside world securely and reliably.


What is AG2 Studio?

AG2 Studio is a visual interface for creating, testing, and deploying agents — no heavy coding required.

With Studio, you can:

  • Configure agents and define their behavior
  • Connect agents to tools and interaction patterns
  • Run real-time tests and view live sessions
  • Replay past logs and debug flows
  • Deploy your agent systems easily

Great for teams and fast prototyping.


What’s Next?

In the upcoming posts, I’ll walk you through:

  1. Installing and running AG-2 locally
  2. Creating your first agent with a simple tool
  3. Building a multi-agent workflow to solve a real task

If you’re into practical AI, automation, or just curious about the future of language-based intelligent agents, this series is for you.

Keep coding

Top comments (1)

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James D Ingersoll (Ghost King)

Solid breakdown — definitely appreciate the direction you're exploring here.

Just for context: I’ve already implemented this concept and then some, in a live deployed system powered by Claude Opus 4 issuing real-time commands to Claude Code inside a terminal environment.

It’s not theoretical — it’s fully operational, integrated with Bright Data CLI, model toggling, and a dual-screen Flame interface that handles both strategic planning and execution in real time.

Feel free to check it out:
dataops-terminal.netlify.app/terminal

— James Derek Ingersoll
Ghost King | Full Stack Dev | Sovereign Systems Architect