Build ChatGPT App

Use this skill for Apps SDK projects that combine an MCP server with a ChatGPT-facing tool or widget experience.

Before You Build

1. Use openai-docs first for current Apps SDK guidance.
2. If the requested app or verification flow calls the OpenAI API, use openai-platform-api-key before API-backed implementation, execution, or smoke tests.
3. Inspect the target repo before choosing architecture.

Workflow