Which models support the JSON Outputs Implementer?

This skill is specifically designed for Claude Sonnet 4.5 and Opus 4.1 models that support the structured-outputs-2025-11-13 beta header.

Are there limitations to the JSON schemas I can use?

Yes, it supports basic types, enums, and nested structures, but currently excludes recursive schemas, complex regex, and specific string length constraints.

Does this skill work with TypeScript?

Yes, it provides full SDK integration patterns for TypeScript using Zod, alongside Python support via Pydantic.

How does this differ from the strict-tool-implementer?

While both use structured data, this skill is for formatting the final message output, whereas strict-tool-implementer is for validating parameters passed to functions in agentic workflows.

JSON Outputs Implementer

Name: JSON Outputs Implementer
Author: cskiro

bycskiro

API開発

Implements Anthropic's structured JSON output mode with Pydantic and Zod integration for guaranteed response schema compliance.

概要

The JSON Outputs Implementer skill enables Claude to generate strictly formatted, type-safe responses using Anthropic's JSON output mode. It provides a comprehensive framework for designing schemas, integrating with SDKs like Pydantic and Zod, and handling validation errors in production environments. Ideal for developers needing reliable data extraction from text or images, this skill ensures that AI-generated content is immediately ready for database insertion or API consumption without the risk of parsing errors.

主な機能

Optimization strategies for nested objects and enums
Automated configuration of structured-outputs beta headers
Schema-first design patterns for Pydantic and Zod
0 GitHub stars
Complete code templates for Python and TypeScript SDKs
Production-ready error handling and validation logic

ユースケース

Extracting structured data from unstructured documents and images
Generating type-safe responses for backend API integration
Automating multi-class content classification with fixed categories

概要

主な機能

Optimization strategies for nested objects and enums
Automated configuration of structured-outputs beta headers
Schema-first design patterns for Pydantic and Zod
0 GitHub stars
Complete code templates for Python and TypeScript SDKs
Production-ready error handling and validation logic

ユースケース

Extracting structured data from unstructured documents and images
Generating type-safe responses for backend API integration
Automating multi-class content classification with fixed categories