Codex Knowledge Base
Managing Codex CLI Configuration Across Multiple AI Tools
Most teams don't just use Codex CLI. They use Codex alongside Claude Code, Cursor, Gemini CLI, or GitHub Copilot. This creates a configuration management.
gstack: Garry Tan's Production Claude Code Skills Toolkit
gstack is Garry Tans open-source software factory: 31 slash-command skills for Claude Code (and Codex CLI, Cursor.
GPT-5.4 mini in Codex CLI: Subagent Delegation, Model Routing and the Tiered Inference Architecture
OpenAI released GPT-5.4 mini and GPT-5.4 nano on 17 March 2026, and they represent something more significant than two incremental model updates.
gpt-5-codex: The New Codex Flagship and What It Means for Your Workflow
In late March 2026, OpenAI shipped two new models — gpt-5-codex and gpt-5-codex-mini — announced by @thsottiaux.
The Codex Python SDK: Embedding Agents in Python Applications
The Codex CLI ships with an official Python SDK — codex_app_server — that lets you drive the agent programmatically from Python scripts, pipelines.
Codex CLI and Vercel: AI Gateway, Skills and the Vercel Plugin Ecosystem
Vercel's investment in AI coding agents reached critical mass in March 2026 with two distinct — but complementary — integration surfaces for Codex CLI teams.
Codex CLI Code Review Workflows: /review, review_model, and the MCP Extension
The /review command is one of Codex CLI's most practical daily-use features, yet it receives surprisingly little attention compared to the agent.
Codex CLI Plugin System: Bundling Skills, MCP Servers, and App Connectors
Codex CLI v0.117.0 (released March 26, 2026) elevated plugins to a first-class workflow primitive.
Codex CLI and Neo4j: Use Cases and Best Practices
Graph databases and AI agents are a natural fit. An agent's core capability is traversal.
Codex CLI for Java and Spring Boot Teams: AGENTS.md, Maven Sandboxing, and Gradle Workflows
Java is one of the most-used languages in enterprise software, yet Codex CLI guidance skews heavily toward Python, TypeScript, and Go. This article fills.