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openapi-spec-generation

Generate, validate, and maintain OpenAPI 3.1 specifications from code and designs.

Updated Feb 21, 2026
Search Tags:#openapi#validation#code-first#api-documentation#api-spec#design-first#sdk-generation
One-click install
npx skills add https://github.com/abzhaw/juliaz_agents --skill openapi-spec-generation-abzhaw
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: openapi-spec-generation
Source: https://github.com/abzhaw/juliaz_agents/tree/main/.agent/skills/openapi-spec-generation
Command: npx skills add https://github.com/abzhaw/juliaz_agents --skill openapi-spec-generation-abzhaw

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

OpenAPI specifications are often out of sync with code and design, leading to inaccurate documentation and integration gaps.

Core Features & Use Cases

  • Code-first and design-first generation of OpenAPI 3.1 specs from source code, annotations, or designs.
  • Validation, linting, and consistency checks against the spec to ensure contract compliance.
  • SDK generation and API documentation portal preparation from the spec and templates.

Quick Start

Provide your API code or design inputs and run the OpenAPI spec generation workflow to bootstrap, validate, and publish a 3.1 specification.

Frequently Asked Questions about openapi-spec-generation

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

FAQPage Schema
How do I generate an OpenAPI 3.1 specification from existing source code?▼

To generate an OpenAPI 3.1 specification from source code, provide your API code or annotations to run a code-first generation workflow, producing a synced API spec document.

What is the best way to keep my API documentation in sync with code changes?▼

Keeping API documentation in sync involves validating and linting your OpenAPI spec against the source code, ensuring contract compliance and preventing integration gaps caused by outdated designs.

Can I validate a design-first OpenAPI schema against my RESTful API implementation?▼

Yes, you can validate a design-first OpenAPI schema by running consistency checks and linting against your RESTful API implementation patterns to ensure full contract compliance.

How do I prepare an API documentation portal and SDK from an OpenAPI spec?▼

You prepare an API documentation portal and SDK by applying template-driven generation to your OpenAPI spec, producing formatted documentation and SDK code outputs.

Why does my OpenAPI specification keep going out of sync with my API design?▼

OpenAPI specifications go out of sync when documentation is maintained separately from the code, a problem solved by using code-first generation or enforcing validation patterns.

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