OpenAI Agents JS enables developers to construct AI agents by combining OpenAI models with custom toolsets. Agents can process user input, call external APIs, manage stateful conversations with memory modules, and perform tasks like web scraping, code generation, or data lookup. The framework offers a plugin system for registering tools, a standardized Agent class for orchestration, built-in memory abstractions, and support for both chat-based and completion-based models. Features include error recovery, multi-tool orchestration, and customizable middleware. By defining tools and feeding them into the agent instance, you can deploy sophisticated AI-driven workflows in Node.js or browser contexts with minimal boilerplate. Additionally, it simplifies API key management and supports asynchronous operations, allowing agents to execute long-running tasks or integrate with databases and messaging queues effortlessly.