Screeny is a macOS-exclusive MCP server designed to empower large language models (LLMs) and other AI agents with the ability to visually interact with your desktop. It allows these agents to capture high-fidelity screenshots of specific application windows, providing crucial visual context for a range of tasks, particularly in development and debugging scenarios. The tool emphasizes privacy and security, ensuring only user-approved windows can be accessed and all image processing occurs locally on your machine, with screenshots being temporary and immediately deleted after use.