schema-meta

Validate JSON Schema documents for syntax and specification compliance.

3|Updated Jan 17, 2026

Search Tags:#validation #schema #json-schema #error-detection #meta-validation #draft-version

Ready to run

npx skills add https://github.com/Mearman/marketplace --skill schema-meta

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: schema-meta
Source: https://github.com/Mearman/marketplace/tree/main/plugins/json-schema/skills/schema-meta
Command: npx skills add https://github.com/Mearman/marketplace --skill schema-meta

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

Validates JSON Schema documents to ensure they are well-formed and conform to the JSON Schema specification, enabling reliable schema usage across validation tasks and API definitions.

Core Features & Use Cases

Meta-validation of schema structure and $schema compliance across multiple drafts
Detects syntax errors, missing definitions, and invalid keyword usage in JSON Schemas
Use Case: verify that a new API request/response payload schema is valid before deployment

Quick Start

Run the meta-validation on a JSON Schema file to verify its correctness.

Frequently Asked Questions about schema-meta

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

FAQPage Schema

How do I validate a JSON Schema file for syntax and draft version errors?▼

To validate JSON Schema files, run a meta-validation check that scans for syntax errors, invalid keyword usage, and $schema draft version compliance to ensure well-formed documents. This catches structural issues before deployment.

What is meta-validation for JSON Schemas and when do I need it?▼

Meta-validation for JSON Schemas is the process of verifying that a schema document itself conforms to the JSON Schema specification. You need it when defining API payloads or data validation pipelines to catch structural issues early.

Can I use this to verify API request and response payload schemas before deployment?▼

Yes, you can validate API request and response payload schemas before deployment. It checks for missing definitions and structural keyword errors, ensuring your API definitions are well-formed and conform to the correct JSON Schema draft.

Does JSON Schema meta-validation check for missing definitions and invalid keyword usage?▼

Yes, JSON Schema meta-validation detects missing definitions and invalid keyword usage. It applies to schema files used in configuration validation to ensure they are well-formed and conform to the JSON Schema specification.

What is the best way to ensure my configuration validation schemas conform to the JSON Schema specification?▼

The best way to ensure configuration schemas conform to the JSON Schema specification is to run meta-validation. This process checks syntax and draft version support, then reports clear errors for remediation.

Why does my JSON Schema fail validation and how do I get clear errors for remediation?▼

Your JSON Schema may fail validation due to syntax errors, missing definitions, or invalid keyword usage. Meta-validation checks $schema compliance across multiple drafts and reports clear errors for remediation.