Can this skill identify common MCP implementation errors?

Yes, it specifically flags incorrect imports like using McpServer instead of the standard Server class from the MCP SDK.

What is the recommended server setup for these apps?

The validator looks for a StreamableHTTPServerTransport setup with explicit session mapping to handle multiple users correctly.

What does the ChatGPT App Validator specifically check?

It validates file existence (package.json, setup.sh, etc.), server patterns in index.ts, widget URI formats, tool response structures, and proper MCP session management.

Why does it check for structuredContent in tool responses?

The structuredContent field is critical because it becomes the window.openai.toolOutput data used by widgets to render dynamic content.

Does it validate frontend HTML for widgets?

It checks that your widget HTML includes necessary components like window.PREVIEW_DATA support and openai:set_globals event listeners.

ChatGPT App Validator

Name: ChatGPT App Validator
Author: hollaugo

byhollaugo

•

Seguridad y Pruebas

Validates ChatGPT App architectures to ensure compliance with schema, widget, and UX requirements.

The ChatGPT App Validator is a specialized skill designed to streamline the quality assurance process for developers building ChatGPT Apps. It performs a comprehensive audit of your codebase, checking for mandatory file structures, correct Model Context Protocol (MCP) server implementations, and proper widget configurations. By verifying critical elements like MIME types, session management patterns, and tool response structures, this skill helps developers identify and resolve architectural errors before testing or deployment, ensuring a seamless user experience within the ChatGPT ecosystem.

Características Principales

01MCP SDK implementation and session management auditing

02Widget configuration and template URI format validation

0320 GitHub stars

04Annotation and UX compliance verification for AI-driven tools

05Automated file structure and mandatory file verification

06Tool response and structuredContent schema checking

Casos de Uso

01Pre-deployment checks for ChatGPT App submissions

02Ensuring compliance with skybridge MIME type and serialization standards

03Debugging session management and widget rendering issues

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hollaugo/tutorials validate

For use in Claude.ai and ChatGPT

Download Skill