Forms Validation skills for AI agents

Conform — progressive enhancement forms, Server Actions, Zod integration, nested objects, arrays, intent buttons, and accessibility patterns

Formik — useFormik, Field, Form, validation with Yup, FieldArray, custom inputs, submission handling, and error display patterns

React Final Form — subscription-based form state management with fine-grained re-renders, field-level validation, decorator support, and zero dependencies

React Hook Form — useForm, register, Controller, validation, nested fields, arrays (useFieldArray), DevTools, and performance optimization patterns

Valibot — modular schema validation, tiny bundle size, parse/safeParse, pipe transformations, type inference, and comparison with Zod

Vest — unit-test-inspired form validation framework with suite/test syntax, async rules, group support, warning-level validations, and framework-agnostic design

Yup — schema-based object validation with casting, transforms, conditional rules, localized error messages, and deep Formik integration

Zod — schema declaration, parsing, type inference (z.infer), transforms, refinements, discriminated unions, error formatting, and form integration