Developed dynamic runtime field validation for the ConnectedForm component in the Codecademy/gamut repository, enabling validation rules that adapt to runtime conditions and user interactions. Leveraged React, TypeScript, and react-hook-form to introduce a customValidations prop, allowing flexible validation logic across form groups and inputs. Enhanced the useField hook and updated input components to propagate validation state end-to-end, while implementing memoization to optimize performance and minimize unnecessary re-renders. Expanded documentation and Storybook examples with accessibility in mind, and increased test coverage to ensure reliable validation propagation. The work supports more complex, user-friendly forms and aligns with planned feature releases.