# Olore Zod 3 > Local Zod v3 documentation reference. Use when asked about Zod schema validation, TypeScript type inference, error handling, or migration from earlier versions. Use when this capability is needed. - Skill: `tomevault-io/olore-zod-3` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/olore-zod-3` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/olore-zod-3/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/olore-zod-3 --- # Zod v3 Documentation Zod is a TypeScript-first schema declaration and validation library designed to be developer-friendly. With Zod, you declare a validator once and Zod automatically infers the static TypeScript type. It eliminates duplicative type declarations and makes it easy to compose simpler types into complex data structures. ## Quick Reference | File | Title | Description | |------|-------|-------------| | `contents/README.md` | Main Documentation | Comprehensive API reference covering primitives, objects, arrays, unions, refinements, transformers, and all Zod features | | `contents/ERROR_HANDLING.md` | Error Handling Guide | Explains ZodError and ZodIssue types, error formatting, and customization with error maps | | `contents/MIGRATION.md` | Migration Guide | Steps for upgrading from Zod 1→2 and Zod 2→3, including breaking changes and new features | | `contents/README_KO.md` | Korean Documentation | Korean translation of the main README | | `contents/README_ZH.md` | Chinese Documentation | Chinese translation of the main README | | `contents/blog/clerk-fellowship.md` | Zod 4 Development | Blog post about Zod 4 development plans and funding | ## When to use Use this skill when the user asks about: - Zod schema validation and type inference - Creating and composing Zod schemas (strings, objects, arrays, unions, etc.) - Validation methods (.parse, .safeParse, .refine, .transform) - Error handling with ZodError - Migrating from Zod 1 or Zod 2 to Zod 3 - TypeScript integration with Zod - Custom validation logic and refinements ## How to find information 1. Check Quick Reference above for relevant file 2. Read `TOC.md` for complete listing 3. Read specific files from `contents/{filename}` For API reference and usage examples, start with `contents/README.md`. For error handling details, see `contents/ERROR_HANDLING.md`. For version migration, see `contents/MIGRATION.md`. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/olorehq) — claim your Tome and manage your conversions.