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openai-docs

Retrieves official OpenAI documentation, Codex manual guidance, and model migration references.

1|Updated Aug 1, 2026
Search Tags:#documentation#codex#mcp#openai#prompting#model migration#api guidance
One-click install
npx skills add https://github.com/xlnn/modelmux-vscode --skill openai-docs-xlnn
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: openai-docs
Source: https://github.com/xlnn/modelmux-vscode/tree/main/.tmp-codex-home4/skills/.system/openai-docs
Command: npx skills add https://github.com/xlnn/modelmux-vscode --skill openai-docs-xlnn

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve? Developers building with OpenAI APIs often rely on outdated or unofficial information when choosing models, migrating between model versions, or configuring Codex. This Skill provides authoritative, current answers sourced directly from official OpenAI developer documentation with citations. ## Core Features & Use Cases - Official Docs Lookup: Searches and fetches pages from the OpenAI Developer Docs MCP server, with fallback to official-domain web search restricted to developers.openai.com and platform.openai.com. - Codex Self-Knowledge: Fetches and caches the Codex manual via a helper script, generating an outline for targeted section reads on setup, skills, plugins, MCP, hooks, and automations. - Model Selection & Migration: Resolves the latest model via a resolver script, fetches live migration and prompting guides, and applies bundled fallback references for GPT-5.6 family upgrades. - Use Case: When asked "which model should I migrate to and how do I update my prompts", the Skill runs the latest-model resolver, fetches the returned migration and prompting guide URLs, and produces a scoped, behavior-preserving upgrade plan. ## Quick Start Ask how to migrate your existing OpenAI API integration to the latest model and request official documentation citations.

Frequently Asked Questions about openai-docs

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I find the latest OpenAI model for my use case?▼

The Skill fetches the official latest-model guide from developers.openai.com or runs the bundled resolver script, which returns the current model ID plus migration and prompting guide URLs. Bundled fallback references are used only when remote docs are unavailable.

How do I migrate my API integration to a newer OpenAI model?▼

The Skill classifies each usage site by role, preserves effective reasoning effort, checks endpoint and tool compatibility, and applies the smallest safe model and prompt changes. It fetches live migration guides and validates behavior rather than doing blind model-string replacement.

What sources does this Skill use for Codex configuration questions?▼

For Codex self-knowledge, it first runs a helper script that fetches and caches the official Codex manual with an outline for targeted reads. If the helper is unavailable, it falls back to the OpenAI Docs MCP server, then official-domain web search.

Does the OpenAI docs lookup work without the MCP server installed?▼

If the MCP tools are missing, the Skill attempts to install the openaiDeveloperDocs MCP server via the codex mcp add command, escalating permissions if needed. As a last resort it uses web search restricted to official OpenAI domains.

Why does the Skill refuse to change historical model references during an upgrade?▼

Migration changes are scoped to active model defaults and directly related prompts, registries, and pickers. Historical docs, eval baselines, fixtures, and intentionally pinned fallbacks are left unchanged unless the user explicitly requests otherwise, preserving existing cost and quality roles.

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