Does it include support for runtime validation?

Yes, it integrates Zod for runtime schema validation and shows how to infer TypeScript types directly from those schemas to keep code DRY.

Does this skill support TypeScript enums?

No, it explicitly recommends avoiding enums in favor of const objects and type assertions, which provide better type safety and flexibility in TypeScript.

How does it handle database types?

The skill promotes a database-first approach by deriving TypeScript types directly from Drizzle ORM schemas using InferSelectModel and InferInsertModel.

Can I still use the 'any' type?

No, this skill enforces a strict policy against 'any'. It guides you to use 'unknown' paired with type guards or explicit interfaces to maintain total type safety.

TypeScript Best Practices

Name: TypeScript Best Practices
Author: JosephAnson

byJosephAnson

0•

Developer Tools

Enforces strict TypeScript conventions and architecture patterns to ensure type safety and code quality in modern web applications.

This skill provides a comprehensive set of strict TypeScript guidelines tailored for robust application development. It guides Claude to prefer interfaces for object shapes, implement type guards, use unknown for safe data handling, and derive types directly from database schemas using Drizzle ORM. By enforcing these patterns, the skill helps developers avoid common pitfalls like 'any' and TypeScript enums, while promoting advanced techniques like discriminated unions, Zod validation, and branded types for superior type safety across the entire stack.

Key Features

01Runtime validation patterns with Zod integration and type inference

02Strict type enforcement with zero tolerance for 'any' or '@ts-ignore'

03Database-first type derivation using Drizzle ORM models

040 GitHub stars

05Optimized guidance on interfaces vs. type aliases for extendability

06Advanced patterns including discriminated unions and branded types

Use Cases

01Architecting type-safe API layers and database integrations

02Implementing robust runtime data validation for user inputs

03Refactoring legacy JavaScript or loosely-typed TypeScript to strict mode

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add josephanson/claude-plugin typescript

For use in Claude.ai and ChatGPT

Download Skill