## Why `--profile-v2 <name>` gives launchers and runtime entry points a named profile config without making each profile duplicate the base user config. The base `$CODEX_HOME/config.toml` still loads first, then `$CODEX_HOME/<name>.config.toml` layers above it and becomes the active writable user config for that session. That keeps shared defaults, plugin/MCP setup, and managed/user constraints in one place while letting a named profile override only the pieces that need to differ. ## What Changed - Added the shared `--profile-v2 <name>` runtime option with validated plain names, now represented by `ProfileV2Name`. - Extended config layer state so the base user config and selected profile config are both `User` layers; APIs expose the active user layer and merged effective user config. - Threaded profile selection through runtime entry points: `codex`, `codex exec`, `codex review`, `codex resume`, `codex fork`, and `codex debug prompt-input`. - Made user-facing config writes go to the selected profile file when active, including TUI/settings persistence, app-server config writes, and MCP/app tool approval persistence. - Made plugin, marketplace, MCP, hooks, and config reload paths read from the merged user config so base and profile layers both participate. - Updated app-server config layer schemas to mark profile-backed user layers. ## Limits `--profile-v2` is still rejected for config-management subcommands such as feature, MCP, and marketplace edits. Those paths remain tied to the base `config.toml` until they have explicit profile-selection semantics. Some adjacent background writes may still update base or global state rather than the selected profile: - marketplace auto-upgrade metadata - automatic MCP dependency installs from skills - remote plugin sync or uninstall config edits - personality migration marker/default writes ## Verification Added targeted coverage for profile name validation, layer ordering/merging, selected-profile writes, app-server config writes, session hot reload, plugin config merging, hooks/config fixture updates, and MCP/app approval persistence. --------- Co-authored-by: Codex <noreply@openai.com>
npm i -g @openai/codex
or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.
