zod

# Zod Best Practices Comprehensive schema validation guide for Zod in TypeScript applications. Contains 43 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation. ## When to Apply Reference these guidelines when: - Writing new Zod schemas - Choosing between parse() and safeParse() - Implementing type inference with z.infer - Handling validation errors for user feedback - Composing complex object schemas - Using refinements and transforms - Optimizing bundle size and validation performance - Reviewing Zod code for best practices ## Rule Categories by Priority | Priority | Category | Impact | Prefix | |----------|----------|--------|--------| | 1 | Schema Definition | CRITICAL | `schema-` | | 2 | Parsing & Validation | CRITICAL | `parse-` | | 3 | Type Inference | HIGH | `type-` | | 4 | Error Handling | HIGH | `error-` | | 5 | Object Schemas | MEDIUM-HIGH | `object-` | | 6 | Schema Composition | MEDIUM | `compose-` | | 7 | Refinements & Transforms | MEDIUM | `refine-` | | 8 | Performance & Bundle | LOW-MEDIUM | `perf-` | ## Quick Reference ### 1. Schema Definition (CRITICAL) - `schema-use-primitives-correctly` - Use correct primitive schemas for each type - `schema-use-unknown-not-any` - Use z.unknown() instead of z.any() for type safety - `schema-avoid-optional-abuse` - Avoid overusing optional fields - `schema-string-validations` - Apply string validations at schema definition - `schema-use-enums` - Use enums for fixed strin...