Individual skill

validating-api-schemas

Validate API schemas against OpenAPI, JSON Schema, and GraphQL specifications. Use when validating API schemas and contracts. Trigger with phrases like "validate API schema", "check OpenAPI spec", or "verify schema".

plugins/api-development/api-schema-validator/skills/validating-api-schemas/SKILL.md

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# Validating API Schemas

## Overview

Validate API specifications against OpenAPI 3.0/3.1, JSON Schema Draft 2020-12, and GraphQL SDL standards using linting rules, structural analysis, and best-practice enforcement. Detect incomplete schemas, undocumented endpoints, inconsistent naming conventions, and breaking changes before they reach consumers.

## Prerequisites

- OpenAPI specification files (YAML or JSON) or GraphQL SDL schema files
- Schema linting tool: Spectral (OpenAPI), `graphql-schema-linter` (GraphQL), or `ajv-cli` (JSON Schema)
- Version control for schema files to enable diff-based breaking change detection
- CI pipeline for automated schema validation on every pull request
- `oasdiff` or `openapi-diff` for breaking change detection between versions

## Instructions
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