In a world where AI-driven security can find a million vulnerabilities in minutes, "business as usual" for developers is officially dead. In this episode of Agents of Dev, Mitch Ashley and Brad Shimmin of The Futurum Group dive into the rapid evolution of the software lifecycle. They explore how Model Context Protocol (MCP) is revitalizing the mainframe by bridging the skills gap and acting as the "can opener" for legacy systems. Brad shares his journey of going "Full YOLO" with agentic development in the Signal project, explaining why high-order reasoning is changing how we maintain complex Python codebases. The duo also tackles the "Grep vs. RAG" debate, examining why simplicity and determinism often beat complex semantic searches. Finally, they discuss the security fallout of Anthropic’s Mythos model and look to the stars to discuss the "silent failure" engineering of NASA’s Artemis II mission. This and more on Agents of Dev, part of The Futurum Group.