Modern QA has two sides. Side One: AI agents now automate test generation, self-heal broken scripts, and synthesize test data — cutting execution time by up to 30%. Side Two: The AI agents your team ships are probabilistic, non-deterministic, and cannot be validated with traditional test scripts. A 3-step agent chain with 70% per-step accuracy fails 66% of the time end-to-end. This article breaks down how to build validation pipelines for both and why treating them as one problem is the most com...