Why does this skill use TypeBox over other libraries?

Fastify has native support for JSON Schema. TypeBox is used because it provides a TypeScript-friendly way to define JSON Schemas with zero-overhead runtime performance.

Can this skill help with API documentation?

Absolutely. It mandates the inclusion of operationId, tags, and summaries, which are essential for generating accurate OpenAPI/Swagger documentation.

Does it include support for authentication and authorization?

Yes, the skill provides patterns for header validation and role-based permission checks using custom Fastify decorators and pre-handlers.

How does it handle API validation errors?

It implements a global error handler that catches validation failures and transforms them into standardized RFC 7807 Problem Detail responses.

Does this skill support Fastify v5 requirements?

Yes, it follows Fastify v5 best practices, specifically requiring full JSON Schema definitions via TypeBox for all routes.

Fastify REST API Development

Name: Fastify REST API Development
Author: martinffx

bymartinffx

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API Development

Develops high-performance, type-safe REST APIs using Fastify and TypeBox for robust schema validation and documentation.

This skill empowers Claude to architect production-grade web services using the Fastify framework in TypeScript. It emphasizes a schema-first approach by leveraging TypeBox for runtime validation and automatic TypeScript type inference. From structuring modular route registrations and implementing standardized RFC 7807 error responses to role-based access control and OpenAPI documentation, this skill ensures that API development is consistent, secure, and optimized for performance with low overhead.

Key Features

01TypeBox-powered runtime schema validation and automatic type inference

02Standardized RFC 7807 problem detail error handling across all routes

03Role-based access control (RBAC) using custom Fastify decorators

043 GitHub stars

05Comprehensive OpenAPI metadata integration (operationId, tags, summaries)

06Modular route registration and plugin-based architecture for scalability

Use Cases

01Building high-performance Node.js microservices with strict type safety

02Implementing standardized REST APIs with unified error reporting

03Developing self-documenting APIs ready for OpenAPI/Swagger generation

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add martinffx/claude-code-atelier fastify

For use in Claude.ai and ChatGPT

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