Vigilance serves as a critical observability layer for AI agents, operating as a Model Context Protocol (MCP) server. It transparently monitors AI activity, capturing real-time visual frames from applications like Unity or Blender, and streaming the AI's reasoning and planned actions via intercepted MCP traffic. This allows developers to understand what an AI agent is perceiving and intending to do, ensuring its behavior aligns with expectations, particularly valuable in complex visual and coding environments. The tool features a web-based dashboard with MJPEG streaming and SVG overlays for a comprehensive view of AI attention.