Agent skill · software engineering · personamanagmentlayer
openapi-expert
Expert-level OpenAPI/Swagger specification for API design, documentation, and code generation. Use when the user mentions swagger, API specs, REST, API design, or documentation, or when the task involves OpenAPI Specification, Webhooks, or Polymorphism.
Why this skill is useful
Provides detailed OpenAPI specifications and examples that enhance API design and documentation capabilities beyond standard knowledge.
What it needs
About 2k tokens when loaded. Last updated 2026-03-30. 41 stars on the source repository.
What this skill does
OpenAPI Expert Expert guidance for OpenAPI Specification (formerly Swagger) - industry-standard for describing RESTful APIs with automatic documentation and code generation. Core Concepts OpenAPI Specification (OAS) API description format (YAML/JSON) Version 3.1 (latest) and 3.0 Machine-readable API contracts Automatic documentation generation Client/server code generation API validation and testing Key Components Paths (endpoints) Operations (HTTP methods) Parameters Request/Response bodies Schemas (data models) Security schemes Components (reusable objects) Advanced Features Webhooks (OpenAPI 3.1) Polymorphism (oneOf/anyOf/allOf) Code Generation Validation Documentation Generation Best Practices Use semantic versioning Include examples in schemas Provide clear descriptions Use components for reusability Define proper error responses Include security schemes Add operation IDs Tag operations logically Validate specifications Version your APIs Reference Documentation Detailed material lives alongside this skill and is read on demand: Basic OpenAPI Specification Resources OpenAPI Spec: https://spec.openapis.org/ Swagger Editor: https://editor.swagger.io/ OpenAPI Tools: https://openapi.tools/ Stoplight Studio: https://stoplight.io/studio
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills personamanagmentlayer/openapi-expert