Enforce Zod schema validation for typed TypeScript data safety.
npx skills add https://github.com/legions-developer/invoicely --skill zod-legions-developer
Please help me install this Agent Skill. Skill: zod Source: https://github.com/legions-developer/invoicely/tree/main/.agents/skills/zod Command: npx skills add https://github.com/legions-developer/invoicely --skill zod-legions-developer
Zod Best Practices helps you prevent invalid or unsafe data from entering your TypeScript app by enforcing correct schema definitions, safe parsing, and high-quality error handling. It reduces runtime crashes, security risks, and confusing user-facing validation messages.
any patterns.safeParse() for user/external input, apply parseAsync() for async refinements, validate early at system boundaries, and avoid double validation.flatten()/paths for form-friendly errors, and implement i18n/custom messaging.extend(), pick()/omit(), partial() for updates, discriminated unions, and preprocess()/pipe() for clear transformation pipelines.Use the zod skill to validate a request body against a Zod object schema by ensuring you use safeParse for user input and apply the rule index in SKILL.md to refactor unsafe validations.
High-intent search queries and answers about installing and using this skill.
Validate API request body inputs with Zod by applying safeParse to avoid throwing exceptions, then use flatten with issue paths to collect structured errors for form-friendly UI display. This prevents runtime crashes from invalid TypeScript data.
The best way to parse and transform query inputs is using Zod preprocess and pipe for clear transformation pipelines. Apply safeParse at system boundaries to catch invalid data early before it breaks runtime assumptions.
Type inference with Zod object schemas works by using z.input and z.infer to automatically generate TypeScript types from schema definitions. This ensures your typed inference aligns precisely with schema-level constraints without unsafe any patterns.
Yes, you can use parseAsync for async refinements and compose schema variants using extend, pick, omit, and partial for updates. Discriminated unions further enable disciplined composition for maintainable validation logic.
You need safeParse for form validation when processing user input to safely collect all validation issues, and parseAsync when your Zod schema includes async refinements. Validate early at system boundaries to avoid double validation.
Zod schema validation limitations for bundle size and performance require caching schema instances and applying targeted optimizations like Zod Mini when bundle size matters. Avoid double validation to maintain runtime efficiency.
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