api-designer

Architect REST and GraphQL APIs by producing OpenAPI 3.1 specifications.

Updated May 14, 2026
One-click install
npx skills add https://github.com/nkseth/copilot-dev-skills --skill api-designer-nkseth
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: api-designer
Source: https://github.com/nkseth/copilot-dev-skills/tree/main/skills/api-designer
Command: npx skills add https://github.com/nkseth/copilot-dev-skills --skill api-designer-nkseth

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Streamlines designing REST and GraphQL APIs by producing clear OpenAPI specifications and architecture plans.

Core Features & Use Cases

  • OpenAPI 3.1 compliant specification design for REST and GraphQL backends
  • Resource modeling, versioning strategies, pagination patterns, and consistent error handling
  • Guidance for authentication, authorization, and API governance across teams

Quick Start

Draft an OpenAPI 3.1 spec for a new resource and validate it with a linting tool.

Frequently Asked Questions about api-designer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I design an OpenAPI 3.1 specification for a new REST API resource?

To design an OpenAPI 3.1 specification, you architect the REST API by defining resource models, versioning strategies, pagination patterns, and authentication methods within the spec document, ensuring backend conformance and clear documentation.

What is the best way to model pagination and error handling in GraphQL APIs?

Modeling pagination and error handling in GraphQL APIs involves defining consistent query patterns for data slicing and standardized error response structures, ensuring robust API architecture and reliable client-side error resolution.

Can I generate OpenAPI specifications for both internal services and public-facing platforms?

Yes, you can generate OpenAPI specifications for both internal services and public-facing platforms, applying standardized API governance, authentication documentation, and resource modeling across varying scales of API design projects.

What versioning strategies should I use when architecting a REST API?

When architecting a REST API, you should apply versioning strategies that align with OpenAPI 3.1 compatibility, ensuring smooth transitions between resource models and maintaining consistent endpoint documentation across API iterations.

How do I document authentication and authorization flows in an OpenAPI specification?

Documenting authentication and authorization in an OpenAPI specification involves defining security schemes and requirements within the spec, providing clear guidance for API governance and secure access control across teams.

Why does consistent API design matter for team governance and integration?

Consistent API design matters because it establishes unified resource modeling, error handling, and authentication documentation, which streamlines team governance and ensures reliable REST and GraphQL conformance during integration.