# Codex

> Wiki for OpenAI Codex: the app, CLI, IDE extension, cloud tasks, config.toml, sandboxing, AGENTS.md, and troubleshooting.
> Covers: OpenAI Codex across the desktop app, CLI, IDE extension, web/cloud tasks, and GitHub/Slack/Linear integrations: setup, authentication and plan/pricing tradeoffs, config.toml, sandboxing/approvals, AGENTS.md, skills and plugins, automations, MCP, proven workflows, release history, and a solved-issues casebook.
> Not covered: General OpenAI API usage outside Codex, other coding agents, the legacy 2021 Codex completion models, and releases after the date below — use web search.
> Current as of: 2026-06-11 (0.139.0)

- [LLM Wiki](/raw/codex/README.md)
- [Codex KB — Master Index](/raw/codex/wiki/index.md)
- [AGENTS.md Custom Instructions](/raw/codex/wiki/concepts/agents-md.md)
- [Authentication](/raw/codex/wiki/concepts/authentication.md)
- [Automations](/raw/codex/wiki/concepts/automations.md)
- [Cloud Tasks & Environments](/raw/codex/wiki/concepts/cloud-tasks.md)
- [Configuration (config.toml)](/raw/codex/wiki/concepts/configuration.md)
- [Enterprise Admin & Governance](/raw/codex/wiki/concepts/enterprise-admin.md)
- [Installation & Setup](/raw/codex/wiki/concepts/installation-setup.md)
- [MCP Integration](/raw/codex/wiki/concepts/mcp-integration.md)
- [Memories & Context Handling](/raw/codex/wiki/concepts/memories-context.md)
- [Non-Interactive Mode (codex exec)](/raw/codex/wiki/concepts/non-interactive-exec.md)
- [Sandboxing & Approvals](/raw/codex/wiki/concepts/sandboxing-approvals.md)
- [Skills & Plugins](/raw/codex/wiki/concepts/skills-plugins.md)
- [Subagents](/raw/codex/wiki/concepts/subagents.md)
- [Browser and Desktop Integration (Chrome Extension, In-App Browser, Computer Use, Appshots)](/raw/codex/wiki/entities/browser-integration.md)
- [Chat Integrations (Slack and Linear)](/raw/codex/wiki/entities/chat-integrations.md)
- [Codex App (Desktop)](/raw/codex/wiki/entities/codex-app.md)
- [Codex CLI](/raw/codex/wiki/entities/codex-cli.md)
- [Codex IDE Extension](/raw/codex/wiki/entities/codex-ide-extension.md)
- [Codex Models](/raw/codex/wiki/entities/codex-models.md)
- [Codex SDK (TypeScript and Python) and Agents SDK Integration](/raw/codex/wiki/entities/codex-sdk.md)
- [Codex Web (Codex Cloud) and Sites](/raw/codex/wiki/entities/codex-web.md)
- [GitHub Integrations (Code Review, GitHub Action, Auto-Review, Open Source Program)](/raw/codex/wiki/entities/github-integrations.md)
- [Activity Log](/raw/codex/wiki/log.md)
- [Best Practices and Prompting for Codex](/raw/codex/wiki/summaries/best-practices-prompting.md)
- [Casebook: Auth, Sign-in, and Usage-Limit Problems](/raw/codex/wiki/summaries/casebook-auth-limits.md)
- [Casebook: Runtime Errors — Streams, Hangs, Approvals, Routing](/raw/codex/wiki/summaries/casebook-runtime.md)
- [Community Source Batch - 2026-06-11](/raw/codex/wiki/summaries/community-source-batch-2026-06-11.md)
- [Field Notes: Codex App on Windows (2026-06-11)](/raw/codex/wiki/summaries/field-notes-windows-app.md)
- [Codex Release Digest](/raw/codex/wiki/summaries/release-digest.md)
- [Auth & Plan Picker: Sign in with ChatGPT vs API Key](/raw/codex/wiki/syntheses/auth-plan-picker.md)
- [Sandbox Modes × Approval Policies: Recommended Combos by Risk Profile](/raw/codex/wiki/syntheses/sandbox-approval-guide.md)
- [Surface Picker: App vs CLI vs IDE Extension vs Web vs Cloud Tasks](/raw/codex/wiki/syntheses/surface-picker.md)
- [Troubleshooting Checklist: Ordered Diagnosis for Codex Failures](/raw/codex/wiki/syntheses/troubleshooting-checklist.md)
- [Workflow Recipes: Worktrees, AGENTS.md Layering, Automations, Cloud Handoffs](/raw/codex/wiki/syntheses/workflow-recipes.md)