By name: olore-t3-env-latest description: Local t3-env documentation reference (latest). T3 Env documentation. Use for type-safe environment variable validation with Zod/Valibot, Next.js and Nuxt integration, and runtime env configuration.
t3-env Documentation
T3 Env provides type-safe environment variable validation for TypeScript applications. It validates env vars at runtime using any Standard Schema compliant validator (Zod, Valibot, ArkType, Typia, etc.) and enforces server/client variable separation to prevent accidental secret leakage.
Quick Reference
| File | Title | Description |
|---|---|---|
contents/introduction/page.mdx |
Introduction | Overview of T3 Env: type-safe env vars, Standard Schema support, server/client separation, framework presets |
contents/core/page.mdx |
Core | Framework-agnostic core package setup using createEnv with server/client schemas and runtimeEnv mapping |
contents/nextjs/page.mdx |
Next.js | Next.js integration via @t3-oss/env-nextjs — preconfigured with NEXT_PUBLIC_ prefix and edge runtime support |
contents/nuxt/page.mdx |
Nuxt | Nuxt integration via @t3-oss/env-nuxt — auto-fills runtimeEnv from Nuxt's runtime config |
contents/customization/page.mdx |
Customization | Options: skipValidation, custom error handling, emptyStringAsUndefined, extending presets |
contents/recipes/page.mdx |
Recipes | Common patterns: boolean coercion, number parsing, enum validation, optional variables with defaults |
contents/standard-schema/page.mdx |
Standard Schema | Supported validators (Zod, Valibot, ArkType, Typia) and how Standard Schema interop works |
When to use
Use this skill when the user asks about:
- Setting up type-safe environment variables in TypeScript/Node.js projects
- Integrating T3 Env with Next.js or Nuxt
- Using Zod, Valibot, ArkType, or other validators for env var schemas
- Separating server-only vs client-exposed environment variables
- Coercing env var strings to booleans, numbers, or enums
- Customizing validation behavior (skipping validation, empty string handling)
- Using deployment presets for Vercel, Netlify, Railway, etc.
How to find information
- Check Quick Reference above for the relevant file
- Read specific files from
contents/{filename}