What problem does it solve? Developers building with OpenAI APIs often rely on outdated or unofficial information when choosing models, migrating to newer versions, or updating prompts. This Skill grounds every answer in current official OpenAI documentation with citations, and provides a disciplined workflow for model and prompt upgrades. ## Core Features & Use Cases - Authoritative docs lookup: Searches and fetches pages from the developers.openai.com MCP server, falling back to official-domain web search only when MCP returns nothing useful. - Model selection guidance: Resolves the latest recommended model for a use case using the live latest-model guide, with bundled references as fallback. - Model and prompt upgrades: Runs a resolver script to detect the current model target, then applies a narrow upgrade workflow that classifies changes as model-string-only, light prompt rewrite, or blocked. - Use Case: A user asks to migrate their app from gpt-4o to the latest model. The Skill fetches current migration guidance, inventories model usage, and recommends a minimal, behavior-preserving upgrade plan with reasoning-effort settings. ## Quick Start Ask the agent to look up the latest OpenAI model for your use case or to plan an upgrade of your existing integration to the newest GPT model with cited official guidance.