ultrathink - Take a deep breath. We're not here to write code. We're here to make a dent in the universe.
The Vision
Documentation lookups should feel inevitable and authoritative.
Your Work, Step by Step
- •Identify target: Pick the right library and query.
- •Resolve ID: Use Context7 to get exact docs.
- •Query precisely: Ask for focused, answerable snippets.
- •Apply results: Convert docs into actionable guidance.
Ultrathink Principles in Practice
- •Think Different: Seek the most direct source of truth.
- •Obsess Over Details: Use exact IDs and query wording.
- •Plan Like Da Vinci: Decide the lookup path before querying.
- •Craft, Don't Code: Keep results concise and relevant.
- •Iterate Relentlessly: Re-query when ambiguity remains.
- •Simplify Ruthlessly: Avoid unnecessary sources.
OpenAI Documentation Access Skill
Access OpenAI's complete developer documentation through Context7 MCP integration.
Quick Start
yaml
# Query Codex CLI documentation mcp__context7__query-docs: libraryId: "/websites/developers_openai_codex" query: "your question about Codex CLI" # Query OpenAI API documentation mcp__context7__query-docs: libraryId: "/websites/platform_openai" query: "your question about OpenAI API"
Available Documentation Libraries
| Library ID | Content | Snippets | Score |
|---|---|---|---|
/websites/developers_openai_codex | Codex CLI docs | 614 | 75.8 |
/websites/platform_openai | OpenAI API docs | 9,418 | 69.1 |
/openai/openai-python | Python SDK | 429 | 90.7 |
/openai/openai-node | Node.js SDK | 437 | 87.9 |
/openai/codex | Codex core | 491 | 62.1 |
/openai/codex-action | GitHub Action | 36 | 78.8 |
Common Queries
Codex CLI Configuration
yaml
# MCP server configuration query-docs: libraryId: "/websites/developers_openai_codex" query: "MCP server configuration config.toml remote URL authentication" # Sandbox modes and permissions query-docs: libraryId: "/websites/developers_openai_codex" query: "sandbox modes read-only workspace-write danger-full-access" # Session resume and parallel execution query-docs: libraryId: "/websites/developers_openai_codex" query: "exec resume session parallel execution workflow"
OpenAI API Integration
yaml
# Chat completions query-docs: libraryId: "/websites/platform_openai" query: "chat completions API streaming function calling" # Embeddings and vector search query-docs: libraryId: "/websites/platform_openai" query: "embeddings API text-embedding-3 vector dimensions" # Assistants API query-docs: libraryId: "/websites/platform_openai" query: "assistants API threads messages runs tools"
SDK Usage
yaml
# Python SDK async patterns query-docs: libraryId: "/openai/openai-python" query: "async client streaming completions error handling" # Node.js SDK TypeScript query-docs: libraryId: "/openai/openai-node" query: "TypeScript types streaming response handling"
MCP Configuration Reference
Context7 (Already Configured)
toml
# ~/.codex/config.toml [mcp_servers.context7] command = "npx" args = ["-y", "@upstash/context7-mcp@latest"]
Remote MCP Servers
toml
# Streamable HTTP server format
[mcp_servers.example]
url = "https://example.com/mcp"
bearer_token_env_var = "EXAMPLE_TOKEN"
http_headers = { "X-Custom-Header" = "value" }
STDIO Servers
toml
# Local command-based server [mcp_servers.local] command = "npx" args = ["-y", "@package/mcp-server"] [mcp_servers.local.env] API_KEY = "your-key"
Integration with Codex CLI Skill
This skill complements /codex-cli by providing documentation lookup:
- •Before execution: Query docs for correct flags/options
- •On error: Look up error codes and solutions
- •Configuration: Find correct config.toml syntax
Workflow Example
bash
# 1. Query documentation for correct syntax # Use mcp__context7__query-docs with libraryId="/websites/developers_openai_codex" # 2. Execute Codex with correct options codex exec -m gpt-5.2-codex --full-auto "task" # 3. On error, query docs for solution # Query: "error code XYZ troubleshooting"
Claude-Codex Documentation Bridge
When Claude needs OpenAI documentation:
- •Use Context7 MCP (already available in both Claude and Codex)
- •Query appropriate library based on topic
- •Apply findings to implementation
This eliminates the need for a separate "openaiDevelopers" MCP - Context7 provides all OpenAI documentation with 614+ Codex CLI snippets and 9,400+ API snippets.
See Also
- •
/codex-cli- Codex CLI orchestration skill - •
/library-docs- General library documentation via Context7 - •
~/.codex/config.toml- MCP server configuration