03-visual-builder

03. Build Agents with Visual Builder

Build and manage AI agents without coding using Google ADK Visual Agent Builder.

Blog Post: https://arjunprabhulal.com/google-adk-visual-agent-builder/

Table of Contents

1. Overview
2. Prerequisites
3. Setup Steps
4. Using the Visual Builder
5. Next Steps

Overview

The Visual Agent Builder provides a no-code interface to create and manage AI agents using drag-and-drop components. Perfect for:

• Rapid prototyping
• Non-developers building agents
• Visual workflow design

Prerequisites

• Python 3.10+
• ADK version 1.18.0 or higher
• Gemini API key from AI Studio

Setup Steps

1. Navigate to this module:

cd 03-visual-builder

2. Create and activate a virtual environment:

python -m venv .venv
source .venv/bin/activate  # On Windows: .venv\Scripts\activate

3. Install dependencies:

pip install -r ../requirements.txt

4. Start the ADK web interface:

adk web

Using the Visual Builder

1. Open http://127.0.0.1:8000 in your browser
2. Click the edit icon next to the agent dropdown
3. Use the visual interface to:
   • Configure agent properties (name, model, instruction)
   • Add tools and sub-agents
   • Set up workflow patterns
4. Test your agent in the chat interface
5. Export the generated code

Next Steps

Continue to 04. LLM Agents