Nine essential checks to run before launching an AI-generated web app

AI coding tools can rapidly build functional demos, but they often outpace a team's ability to define boundaries, write negative tests, and verify critical behaviors under real-world conditions. A developer guide recommends focusing on one core user journey—such as signup, checkout, or onboarding—and running nine structured checks before launch. The checks cover areas including authorization enforcement, idempotency of repeated requests, out-of-order event handling, and partial failure states where one write succeeds but a follow-up step does not. Each check requires documenting the exact version, environment, and test conditions so conclusions reflect what was actually verified rather than a broad claim of safety. The goal is not to audit everything at once, but to ensure that launch-critical behaviors have observable pass and fail conditions backed by both negative and positive tests.