openapi-schema-creator

Generate OpenAPI 3.1 REST API contracts from service ideas through a guided workflow.

Updated May 28, 2026
One-click install
npx skills add https://github.com/susamn/skills --skill openapi-schema-creator
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: openapi-schema-creator
Source: https://github.com/susamn/skills/tree/main/openapi-schema-creator
Command: npx skills add https://github.com/susamn/skills --skill openapi-schema-creator

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

Manually creating consistent, valid OpenAPI 3.1 REST API contracts is time-consuming and error-prone, especially for teams that need to align on entity models, endpoint designs, and standard error shapes across services.

Core Features & Use Cases

  • Guided Conversational Workflow: Walks users through 6 structured phases from initial service idea to production-ready schema, including entity discovery, CRUD endpoint design, and iterative refinement.
  • Built-in Best Practices: Enforces standard pagination envelopes, RFC 7807 problem details for errors, reusable $ref components, and support for common authentication and API versioning patterns.
  • Use Case: A backend developer building a new task management API can use this skill to define User and Project entities, design CRUD and custom endpoints, and generate a fully valid OpenAPI 3.1 spec ready for client code generation and mock server setup.

Quick Start

Use the openapi-schema-creator skill to design a complete OpenAPI 3.1 schema for a file sharing API with user, folder, and file entities.

Frequently Asked Questions about openapi-schema-creator

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

FAQPage Schema
How do I generate a valid OpenAPI 3.1 schema from scratch?

To generate a valid OpenAPI 3.1 schema, this skill uses a guided conversational workflow to walk you through 6 structured phases, transforming raw service ideas into production-ready REST API contracts with defined entity models and endpoint specifications.

What is the best way to design REST API contracts with standard error shapes?

Designing REST API contracts with standard error shapes is handled by enforcing built-in best practices, including RFC 7807 problem details for errors, reusable $ref components, and standard pagination envelopes across your service interfaces.

Can I use this guided workflow to add authentication and API versioning to my REST API?

Yes, you can add authentication and API versioning to your REST API. The schema generation process explicitly supports common authentication patterns and API versioning strategies within the OpenAPI 3.1 specification output.

How do I structure CRUD endpoints and entity models for a new backend service?

Structuring CRUD endpoints and entity models is achieved through the skill's iterative refinement phase, which helps backend developers and technical architects discover entities and design endpoint specifications ready for client code generation.

Does this OpenAPI schema generator support reusable components for consistent API design?

Yes, the OpenAPI schema generator supports reusable components by enforcing $ref usage throughout the generated 3.1 specification, ensuring consistent entity models, standard error shapes, and pagination envelopes across your services.