Implementing AI Agents in Rails with RubyLLM

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In this post, we'll explore how to create custom OpenAI chat agents using the RubyLLM gem. We'll discuss the key concepts, implementation details, and provide practical code examples for building reusable AI assistants.

Introduction to RubyLLM Agents

RubyLLM Agents are a type of augmented LLM (Large Language Model) interface that provides access to a list of predefined tools. These agents can be configured with their own models, runtime context, and prompt conventions, making them reusable AI assistants.

Benefits of Chat-Based Agents

Chat-based agents have several advantages over fully autonomous agents like Claude Code or Codex:

User Input : They still react to user input, allowing for a more interactive experience.

Tool Integration : They can access a list of predefined tools, enabling seamless integration with existing workflows.

Prerequisites and Setup

Before diving into implementation details,…