ThatOne - The Element Picker for AI Prompts is a Chrome add-on designed to streamline the process of creating context-rich prompts for AI tools. By simply clicking on elements within a webpage, users can capture clean HTML, rendered styles, and the necessary structural context, allowing for precise communication with AI models like Cursor, Claude, and ChatGPT. This tool eliminates the need for lengthy explanations, making it easier to convey the intended element to AI systems.

Key features include a smart element picker that highlights elements for easy identification, an automatic HTML sanitizer that removes unnecessary code, and visual layout mapping to create organized blueprints of web structures. The tool also offers custom slash commands for quick access to frequently used prompts and a floating, draggable UI that adapts to user preferences. With a focus on privacy and local processing, ThatOne ensures user data remains secure.