# Regle Schemas

> Validate Regle forms with schema libraries via `@regle/schemas` — Zod, Valibot, ArkType, and any Standard Schema spec library using `useRegleSchema`, `useRules`, `refineRules`, and `InferInput`. Use when a form's validation is defined by an external schema instead of `@regle/rules`. For native rules see regle-rules; for form setup see regle.

- Skill: `victorgarciaesgi/regle-schemas` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add victorgarciaesgi/regle-schemas`
- Raw SKILL.md: https://api.skillmd.com/api/skills/victorgarciaesgi/regle-schemas/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: victorgarciaesgi (https://skillmd.com/u/victorgarciaesgi)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/victorgarciaesgi/regle-schemas

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# Regle Schemas

Regle can drive validation from a schema library instead of `@regle/rules`. Install `@regle/schemas` and use `useRegleSchema` with a Zod, Valibot, or ArkType schema (or any Standard Schema compliant validator).

```ts
import { useRegleSchema } from '@regle/schemas';
import { z } from 'zod';

const { r$ } = useRegleSchema(
  { email: '' },
  z.object({ email: z.string().email() })
);
```

## Key Concepts

- `useRegleSchema(state, schema)` replaces `useRegle`; the `r$` object behaves the same.
- Works with any Standard Schema library; Zod, Valibot, and ArkType are first-class.
- `useRules` / `refineRules` let you mix schema validation with native Regle rules.
- `InferInput` infers the state type from the schema.

## References

| Topic | Description | Reference |
|-------|-------------|-----------|
| Schema Libraries | `useRegleSchema` with Zod, Valibot, ArkType | [schemas-libraries](references/schemas-libraries.md) |
| Standard Schema | Standard Schema spec, `useRules`, `refineRules`, `InferInput` | [schemas-standard-schema](references/schemas-standard-schema.md) |

## Related skills

- **regle** — form setup with `useRegle`, validation properties, displaying errors.
- **regle-rules** — native rules when not using a schema library.
- **regle-typescript** — type-safe output and typing props.