https://livesey.io/tags/validation/ Posts filed under validation. https://livesey.io/posts/screen-flow-component-validation/ urn:uuid:2e171ace-6694-59c9-8d49-3514b4e6d4aa Thu, 02 Jul 2026 12:00:00 GMT Flow screen validation is a three-method contract. Keep internal and external errors separate, render them at the right time, and never make navigation depend on accidental component state.