write-schema

Generate JSON Schema and Pydantic models for Python configuration validation.

Updated Apr 1, 2026
One-click install
npx skills add https://github.com/hpsgd/claude-marketplace --skill write-schema
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: write-schema
Source: https://github.com/hpsgd/claude-marketplace/tree/main/plugins/engineering/python-developer/skills/write-schema
Command: npx skills add https://github.com/hpsgd/claude-marketplace --skill write-schema

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Configuration-heavy applications often struggle with correct, versioned validation. This Skill provides a structured approach to generate and evolve schemas for configurations, API contracts, and tool interfaces, improving reliability and safety.

Core Features & Use Cases

  • Generate JSON Schema for config files and API payloads to enforce structure and constraints.
  • Generate Pydantic models to provide strong-typed validation within Python applications.
  • Enable schema evolution with clear migration paths and testability, ensuring backward compatibility.

Quick Start

Write a schema for $ARGUMENTS.

Frequently Asked Questions about write-schema

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

FAQPage Schema
How do I create JSON Schema for configuration validation in Python?

To create JSON Schema for configuration validation, generate schema definitions enforcing mandatory basics like $schema, $id, additionalProperties, descriptions, and examples. This structured approach provides rigorous validation for configuration files, API payloads, and tool interfaces.

What's the best way to generate Pydantic models for API payloads?

Generating Pydantic models for API payloads is best achieved by defining strong-typed validation rules directly within your Python application. This enforces strict type checking and structure constraints for incoming API requests and tool interfaces.

How does schema evolution handle backward compatibility for configuration files?

Schema evolution handles backward compatibility by providing clear migration paths and testability for configuration files. This structured approach ensures that evolving schemas for API contracts and tool interfaces maintain application reliability and safety across versions.

Do I need JSON Schema or Pydantic for tool interface validation?

You need JSON Schema for enforcing external structure and constraints across configuration files and API payloads, while Pydantic provides strong-typed validation within Python applications. Combining both ensures rigorous validation across diverse tool interfaces.

When do I need strict type validation for configuration files?

You need strict type validation for configuration files when configuration-heavy applications struggle with correct, versioned validation. Implementing JSON Schema and Pydantic models improves reliability and safety by enforcing mandatory schema basics and reusable definitions.