Which models support the Structured Outputs feature?

This feature is currently supported by Claude 3.5 Sonnet (4.5) and Claude 3.7 Opus (4.1) using the required beta headers.

Can I use JSON outputs and strict tool use in the same request?

Yes, Claude supports hybrid workflows where both JSON output formatting and strict tool validation are used simultaneously for complex operations.

Does this skill provide actual implementation code?

This skill acts as an advisor to determine the best strategy and then delegates the actual schema design and code generation to specialized implementer skills.

What is the difference between JSON Outputs and Strict Tool Use?

JSON Outputs are used when you need Claude's final response to follow a specific JSON schema, while Strict Tool Use ensures that parameters passed to external functions are 100% type-valid.

Structured Outputs Advisor

Name: Structured Outputs Advisor
Author: cskiro

bycskiro

0•

API開発

Guides developers in implementing Anthropic's structured outputs feature by selecting the optimal mode between JSON responses and strict tool use.

The Structured Outputs Advisor serves as a strategic consultant for developers building high-reliability applications with Claude. It analyzes specific project requirements to determine whether to utilize JSON Output mode for data extraction and API formatting or Strict Tool Use for validated agentic workflows and function calls. By evaluating factors like schema complexity and downstream consumption, the skill ensures 100% schema compliance and provides a clear path to production-ready implementation using the latest Anthropic beta headers and model capabilities.

主な機能

01Compatibility guidance for Claude Sonnet 4.5 and Opus 4.1

02Requirements analysis for data extraction and agentic workflows

03Intelligent mode selection between JSON outputs and strict tool use

04Comprehensive decision matrix for schema compliance and type safety

05Direct delegation to specialized implementation skills

060 GitHub stars

ユースケース

01Formatting model responses for direct consumption by external APIs and databases

02Designing type-safe data extraction pipelines from unstructured text or images

03Building reliable multi-step agentic workflows with validated tool parameters

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add cskiro/claudex structured-outputs-advisor

For use in Claude.ai and ChatGPT

Download Skill