Does this skill support runtime validation?

Yes, it promotes using zod-openapi or typebox to validate API responses at the boundary, ensuring runtime data matches compile-time types.

Do I need to manually write types for my API?

No, the core philosophy of this skill is that the spec is the source of truth. All types should be generated from the OpenAPI document to avoid duplication and human error.

How does it prevent API drift?

The skill includes CI integration checks that verify generated types against the current spec, failing the build if a drift is detected between the contract and the code.

Can I use this with existing Swagger files?

Absolutely. It is designed to consume any valid OpenAPI or Swagger specification to generate corresponding TypeScript artifacts automatically.

OpenAPI TypeScript Integration

Name: OpenAPI TypeScript Integration
Author: hjemmesidekongen

byhjemmesidekongen

0•

API Development

Automates type-safe API development by generating TypeScript definitions and fetch clients directly from OpenAPI specifications.

This skill streamlines the contract-first development workflow by transforming OpenAPI schemas into robust TypeScript interfaces and type-safe fetch clients. It eliminates manual type duplication, ensures strict alignment between API documentation and implementation, and integrates runtime validation via Zod to bridge the gap between compile-time types and live data. By enforcing CI-based integrity checks and breaking change detection, it prevents API drift and ensures that every downstream assumption remains valid throughout the development lifecycle.

Key Features

01CI-enforced integrity checks to prevent API contract drift

020 GitHub stars

03Contract-first development patterns and breaking change detection

04Runtime schema validation with zod-openapi and typebox support

05Automated TypeScript type generation from OpenAPI/Swagger schemas

06Type-safe fetch client integration using openapi-fetch

Use Cases

01Generating type-safe API clients for frontend and backend applications

02Validating external API responses at runtime to prevent silent data failures

03Enforcing contract consistency across microservices and team boundaries

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hjemmesidekongen/ai openapi-typescript

For use in Claude.ai and ChatGPT

Key Features

01CI-enforced integrity checks to prevent API contract drift

020 GitHub stars

03Contract-first development patterns and breaking change detection

04Runtime schema validation with zod-openapi and typebox support

05Automated TypeScript type generation from OpenAPI/Swagger schemas

06Type-safe fetch client integration using openapi-fetch

Use Cases

01Generating type-safe API clients for frontend and backend applications

02Validating external API responses at runtime to prevent silent data failures

03Enforcing contract consistency across microservices and team boundaries

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hjemmesidekongen/ai openapi-typescript

For use in Claude.ai and ChatGPT