Imported from vantezzen/autoform (skills/autoform/SKILL.md). Install upstream with npx skills add vantezzen/autoform --skill autoform. Copyright stays with the author.

@autoform — Schema-Driven Form Generation

AutoForm automatically renders React forms from your existing Zod, Yup, or Joi schema. You pick the UI library, you pick the schema library, and AutoForm wires them together, no manual field binding.

Architecture (read this first)

AutoForm is a four-layer system. Understanding the layers prevents import errors:

@autoform/core          ← types & utilities (you rarely import from here)
    ↓
@autoform/zod|yup|joi   ← schema provider (parse + validate + fieldConfig)
    ↓
@autoform/react         ← shared React contracts + adapter implementations
    ├── /react-hook-form     ← React Hook Form implementation
    └── /tanstack-form       ← TanStack Form implementation
    ↓
@autoform/mui|mantine|ant|chakra  ← UI-library wrapper (pre-wired components)
        OR
shadcn registry (copy-paste components via CLI)

Import rule

• AutoForm: import from the selected UI adapter path, such as @autoform/mui/react-hook-form or @autoform/mui/tanstack-form. For shadcn, use the installed local adapter: @/components/ui/autoform/react-hook-form or @/components/ui/autoform/tanstack-form.
• Schema providers/helpers: import the matching provider and fieldConfig from the selected schema package, such as ZodProvider from @autoform/zod, YupProvider from @autoform/yup, or JoiProvider from @autoform/joi.
• Shared component types: import AutoFormFieldProps, FieldWrapperProps, ObjectWrapperProps, ArrayWrapperProps, and ArrayElementWrapperProps from @autoform/react.
• Custom field binding: use useController from react-hook-form for React Hook Form, or useFieldContext from @autoform/react/tanstack-form for TanStack Form.
• Do not import AutoForm from @autoform/react.

Installation

Pick one option from each domain and read only the relevant lines given:

Form library

Schema library

UI library

Quick Start (minimal working form)

Create schema + render form

"use client"; // required in Next.js App Router
import * as z from "zod";
import { ZodProvider } from "@autoform/zod";
import { AutoForm } from "@autoform/mui/react-hook-form";
// TanStack: @autoform/mui/tanstack-form

const schema = z.object({
  name: z.string(),
  age: z.coerce.number(), // use coerce for browser number and date inputs
  birthday: z.coerce.date(),
  email: z.string().email(),
});
const schemaProvider = new ZodProvider(schema);

export default function MyForm() {
  return (
    <AutoForm
      schema={schemaProvider}
      onSubmit={(data) => console.log(data)}
      withSubmit
    />
  );
}

Next.js / RSC: AutoForm must be in a "use client" component due to schema serialization.

Architecture Flow

Use this mental model when wiring custom components or wrappers.

[SchemaProvider: Zod/Yup/Joi]
        |
        v
[AutoForm: initializes form, validation]
        |
        v
[AutoFormField: internal field router]
        |
        v
[FieldWrapper: label + description + errors]
        |
        v
     [Field]
        |
        +--> [input field]  -> default / custom "form component"
        +--> [object field] -> [ObjectWrapper] -> (AutoFormField)
        +--> [array field]  -> [ArrayWrapper] -> [ArrayElementWrapper] -> (AutoFormField)

following sections cover each of these layers.

Schema Providers

Autoform renders default input components for common schema types see references/schema.md lines 11-154 for Zod, 158-195 for Yup, 199-235 for Joi to learn more.

Critical schema rules

• Numbers: Always use z.coerce.number() (Zod), not z.number() — HTML inputs return strings.
• Dates: Use z.coerce.date() for browser date inputs — HTML inputs submit strings.
• Enums/Select: Use z.enum([...]) or z.nativeEnum(...) for Zod, mixed().oneOf(...) for Yup, Joi.any().valid(...) for Joi.
• Arrays: Supported and valid as fields (array cannot be a root schema).
• Optional: Use .optional() for Zod. Skip .required() for Yup/Joi.
• Default: .default(value) is a validation fallback. If user clears the field, still the .default() value will be returned in form output data.
• Important default rule: For pre-filled values the user can change or clear, pass default values to <AutoForm defaultValues={...} />.

AutoForm: props

Customization

There are four ways to customize AutoForm:

1. Use fieldConfig on schema fields

   • To set labels, descriptions, field order, customData, field types and pass inputProps to the input component like placeholder etc.
   • To customize field level UI wrappers
   • See references/schema.md and references/customization.md (lines 5-70) to understand fieldConfig in detail.

2. Override UI wrappers:

   • Use uiComponents on <AutoForm /> to override UI components globally. Use case: replace global structure such as Form, FieldWrapper, ErrorMessage, SubmitButton, ObjectWrapper, ArrayWrapper, or ArrayElementWrapper.
   • Use fieldConfig on a schema field to override UI wrappers for that field only. Use case: change one field shell, object group, array list, or array item without changing the whole form.

3. Use formComponents on <AutoForm /> and select them with fieldConfig({ fieldType: "..." }) to add custom inputs. Use case: replace the value editor with a slider, color picker, rich text editor, modal selector, async search picker, upload field, multi-card selector, anything you need.

4. Use formProps to pass extra props to <AutoForm /> to customize the <form> element. Use case: add classes, ids, data attributes, className,styles or native form event handlers.

Read references/customization.md for a complete guide to all the above options. Read the selected adapter reference for writing custom field binding code: React Hook Form custom fields use useController; TanStack custom fields use useFieldContext.

Form Control - Accessing form and field level data, states and methods.

Read the reference for your selected adapter:

• React Hook Form: references/react-hook-form.md
• TanStack Form: references/tanstack-form.md

Do not mix RHF hooks with TanStack hooks in the same implementation. references/react-hook-form.md and references/tanstack-form.md are adapter-specific. The other references apply to both form libraries unless they explicitly say otherwise.

shadcn/ui Integration

Unlike other npm UI packages, the shadcn installation copies the AutoForm components into your project so you can edit and customize them. Use the AutoForm exported by the adapter installed in your project:

import { AutoForm } from "@/components/ui/autoform/react-hook-form";

// or
import { AutoForm } from "@/components/ui/autoform/tanstack-form";

• Change the core components only when you want that customization available to every AutoForm in the project. For example, edit components/ui/autoform/components/FieldWrapper.tsx for project-wide wrapper layout changes, or edit the installed adapter entry, components/ui/autoform/react-hook-form.tsx or components/ui/autoform/tanstack-form.tsx, to register project-wide field components.

• For a custom field used by one form, pass it to AutoForm with formComponents:

<AutoForm
  formComponents={{ textarea: TextareaField }}
  schema={schemaProvider}
/>

Common Patterns

Adapter-specific examples file for the following patterns and use cases in: references/utils/examples-react-hook-form.md or references/utils/examples-tanstack-form.md.

• Real-time validation: disabled submit, can submit, live errors, valid form state, enable submit only when form state is valid
• Dialog submit/reset: dialog buttons, external submit, external reset, submit outside form, submit/reset AutoForm from buttons outside or around the form
• Custom fields: custom field, slider, color picker, date picker, file upload, radio cards, value editor, replace the field value editor with fieldConfig({ fieldType }) + formComponents
• Dependent/conditional fields: cascading select, coupon, payment section, gift message, watch other fields, show/disable/reset/replace UI based on form values
• Multi-step form: wizard, multiple schemas, step validation, collect step data, split a flow into multiple schemas/forms and advance after valid step submission
• Nested AutoForm: subform in dialog, object editor, array/object custom value, render a second AutoForm inside a custom field and write its submitted value to the outer field
• Dynamic schema playground: schema text, generated form, Monaco, interactive schema, parse a schema string and render AutoForm dynamically

Common Mistakes to Avoid

1. Importing AutoForm from a package root — select /react-hook-form or /tanstack-form from the UI integration instead.
2. Missing engine peer dependencies — install react-hook-form plus @hookform/resolvers, or install @tanstack/react-form.
3. Not wrapping with "use client" in Next.js App Router.
4. Rendering label/error in custom form components — FieldWrapper already handles this.
5. Using .superRefine(fieldConfig(...)) with Zod v4 — use .check(fieldConfig(...)) instead.
6. Arrays as root schema — arrays must be fields inside an object schema.
7. Using wrappers to replace the value editor — use fieldType + formComponents when the component must own the field value.
8. Forgetting Zod version ≥ 3.25.0 for @autoform/zod.

Reference Files

For deeper details, read these reference files in the references/ directory:

• references/installation.md — Full installation matrix for every UI + schema combination
• references/customization.md — fieldConfig, custom fields, UI component overrides, form element customization
• references/react-hook-form.md - React Hook Form imports, custom fields, form control, defaults, and common mistakes
• references/tanstack-form.md - TanStack Form imports, custom fields, form control, defaults, and common mistakes
• references/schema.md — Complete Zod, Yup, and Joi schema configuration (labels, enums, arrays, sub-objects, fieldConfig)
• references/utils/shadcn-tailwind-installation.md — shadcn/ui and tailwind installation from scratch
• references/utils/examples-react-hook-form.md - React Hook Form shadcn example blocks with install commands, source links, and API-specific descriptions
• references/utils/examples-tanstack-form.md - TanStack Form shadcn example blocks with install commands, source links, and API-specific descriptions
• references/utils/custom-ui-package-integration.md — Building a custom UI package integration from scratch
• references/utils/customizing-react-package.md — If the public React package API does not cover your use case, then copy and customize the React adapter source in your project.