The tutorial explains how to create a simple web app by integrating Lovable, a no-code app builder, with a custom AI research agent developed using String. String helps build event-driven AI agents using natural language and Pipedream's automation engine, while Lovable generates web apps with custom inputs and logic. The project involves creating a lightweight research assistant where users submit a company's URL and their email, and the AI agent researches the company, summarizing its operations, target audience, employee count, and leadership, then returns the results to the frontend app. This is achieved within the free limits of both platforms, with step-by-step guidance on setting up the agent, connecting it via a webhook, and deploying the app. The process emphasizes iteration and prompt engineering to refine the agent's performance, showcasing the potential for building scalable AI solutions without backend coding.