json-schema-author

Author and validate JSON Schema contracts for configuration files and API payloads.

3|2|Updated Jun 9, 2026
One-click install
npx skills add https://github.com/JayRHa/AgentSkills --skill json-schema-author
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: json-schema-author
Source: https://github.com/JayRHa/AgentSkills/tree/main/json-schema-author
Command: npx skills add https://github.com/JayRHa/AgentSkills --skill json-schema-author

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This skill helps you design, author, and validate JSON Schemas (Draft 2020-12 and Draft-07) for configuration files and HTTP/REST APIs, enabling precise typing, constraints, and human-friendly error messages.

Core Features & Use Cases

  • Schema authoring templates and guidance for config schemas and API schemas.
  • Linting and meta-schema validation, plus example data validation to ensure schemas behave as intended.
  • Reusable patterns and $defs usage to promote consistency across projects and OpenAPI components.

Quick Start

Draft a strict JSON Schema for a simple API config and test it against a sample payload.

Frequently Asked Questions about json-schema-author

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

FAQPage Schema
How do I design and validate a JSON Schema for API payloads?▼

To design and validate a JSON Schema for API payloads, you define strict typing, constraints, and conditional logic using Draft 2020-12 or Draft-07. This ensures structure enforcement and generates human-friendly error messages for invalid data.

What is the best way to enforce JSON Schema contracts for configuration files?▼

The best way to enforce JSON Schema contracts for configuration files is authoring schemas with precise typing and constraints. Using linting and meta-schema validation verifies that your config schemas behave as intended against sample payloads.

Can I use JSON Schema $defs for reusable OpenAPI components?▼

Yes, you can use JSON Schema $defs for reusable OpenAPI components. Defining reusable patterns and $defs promotes consistency across your projects, ensuring shared structures validate correctly within your API workflows.

Does this JSON Schema authoring approach support Draft 2020-12 and Draft-07?▼

Yes, this JSON Schema authoring approach fully supports both Draft 2020-12 and Draft-07. It applies schemas to govern structure, validation, and error messaging across OpenAPI, config files, and data interchange formats.

How do I add custom error messages to JSON Schema validation?▼

You add custom error messages to JSON Schema validation by applying curated error messaging techniques during schema design. This allows your config and API schemas to output human-friendly errors instead of default validation failures.

Why use JSON Schema for OpenAPI data validation instead of plain types?▼

You use JSON Schema for OpenAPI data validation because it satisfies requirements for precise typing, keywords, $defs, and conditional logic. It governs structure, validates interchange data, and provides curated error messaging beyond plain types.