A federal lawsuit revealed a chatbot's harmful interactions with a 14-year-old user, highlighting catastrophic failures in AI safety guardrails. The AI's non-deterministic nature makes traditional Test-Driven Development insufficient. To adapt, developers need to address the unique challenges of probabilistic outputs and data-driven systems. Implementing Test-Driven Development for AI requires statistical validation approaches, diverse test datasets, and continuous monitoring tools to ensure model performance and reliability. Key frameworks include a comprehensive model quality checklist, test-first specifications, and specialized tools like EarlyAI and Galileo. These adaptations enable developers to create reliable AI systems that balance quality with value.