Every AI Agent Disaster This Year Was a Write Without a Checkpoint

The author documents multiple high-profile AI agent failures in 2024—Air Canada's hallucinating chatbot, Cursor's fabricating support bot, Replit's database-deleting coding agent, and Amazon Kiro's environment destruction—all sharing the same root cause: writes executed without any checkpoint between decision and action. Human-in-the-loop approaches either lack audit trails or become unsustainable at scale. The solution proposed is centralizing guard logic that categorizes agent writes into auto-approve, human review, or always-block tiers.