Ghostie is a cross-platform intelligent assistant application built with Tauri and React, offering a user-friendly interface for interacting with various AI models. It features a multi-agent system, desktop integration for system control and file access, a plugin architecture for extensibility, a workflow engine for automation, and knowledge management capabilities. Ghostie supports multiple AI models, local script execution, and customizable agent personalities, making it a versatile tool for developers and users looking to integrate AI into their desktop environment.