openapi-expert

Name: openapi-expert
Availability: InStock
Author: aegntic

Design, validate, and generate code from OpenAPI 3.0/3.1 specifications.

4|1|Updated Mar 3, 2026

Search Tags:#api design #openapi #code generation #swagger #api specification #restful api

Ready to run

npx skills add https://github.com/aegntic/clawreform --skill openapi-expert-aegntic

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: openapi-expert
Source: https://github.com/aegntic/clawreform/tree/main/crates/clawreform-skills/bundled/openapi-expert
Command: npx skills add https://github.com/aegntic/clawreform --skill openapi-expert-aegntic

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps you design, validate, and generate code from OpenAPI/Swagger API specifications, ensuring clear, consistent, and maintainable API contracts.

Core Features & Use Cases

API Design Guidance: Provides best practices for structuring OpenAPI documents (3.0/3.1).
Schema Composition: Leverages $ref, allOf, oneOf, anyOf for reusable and polymorphic schemas.
Validation & Linting: Offers techniques to catch breaking changes and errors early.
Code Generation: Facilitates generating server stubs and client SDKs using openapi-generator.
Use Case: Design a new REST API for a user management service, ensuring all endpoints, request/response schemas, and security definitions adhere to OpenAPI best practices and are documented clearly.

Quick Start

Use the openapi-expert skill to generate a server stub for a new API based on the provided OpenAPI specification.

Frequently Asked Questions about openapi-expert

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

FAQPage Schema

How do I design a RESTful API using OpenAPI 3.1 specifications?▼

Designing a RESTful API using OpenAPI 3.1 involves structuring your document with clear endpoint definitions, request/response schemas, and security definitions. This Skill provides best practices for API contract definition, schema composition, and versioning to ensure maintainable, well-documented RESTful APIs.

What's the best way to generate server stubs and client SDKs from an OpenAPI specification?▼

The best way to generate server stubs and client SDKs from an OpenAPI specification is using openapi-generator. This Skill facilitates code generation by validating your API contract first, ensuring the generated server stubs and client libraries accurately reflect your defined endpoints and schemas.

How does schema composition with allOf, oneOf, and anyOf work in Swagger?▼

Schema composition in Swagger uses allOf, oneOf, and anyOf to build reusable and polymorphic schemas. This Skill leverages these keywords to help you structure complex OpenAPI documents, combining multiple schema definitions to handle diverse response payloads and request bodies effectively.

Can I use OpenAPI validation to catch breaking changes in my API contract early?▼

Yes, OpenAPI validation catches breaking changes in your API contract early through linting techniques. This Skill offers validation methods to identify errors and breaking modifications before deployment, ensuring your RESTful API specifications remain consistent and clear throughout the development lifecycle.

Do I need OpenAPI 3.0 or 3.1 for structuring a user management REST API?▼

Both OpenAPI 3.0 and 3.1 standards are supported for structuring a user management REST API. This Skill provides design guidance for both versions, helping you define endpoints, request/response schemas, and security definitions while adhering to the appropriate OpenAPI best practices.

Why are my OpenAPI $ref references not resolving correctly during code generation?▼

OpenAPI $ref references may fail to resolve during code generation due to incorrect schema composition or circular dependencies. This Skill provides best practices for leveraging $ref alongside allOf, oneOf, and anyOf, ensuring your reusable schemas validate properly before generating server stubs.