## Why Issue #23031 was hard to diagnose from existing `codex doctor` output because support could not see the OS language, resolved Git install, Git repo metadata, Windows console mode/code page, or terminal-title inputs that affect the TUI startup path. This adds those read-only signals to `codex doctor` so Windows, Linux, and macOS reports carry the context needed to investigate similar terminal rendering regressions. Refs #23031 ## What Changed - Add a `system.environment` check for OS type/version, OS language, and locale env vars. - Add a `git.environment` check for the selected Git executable, PATH Git candidates, version, exec path/build options, repository root, branch, `.git` entry, and `core.fsmonitor`. - Add Windows console code page and VT-processing mode details to terminal diagnostics. - Add a `terminal.title` check for configured/default title items and resolved project-title source/value. - Surface startup warning counts in config diagnostics and teach human output to render the new categories. ## How to Test 1. On Windows, check out this branch and run `cargo run -p codex-cli -- doctor --summary`. 2. Confirm the Environment section includes `system`, `git`, `terminal`, and `title` rows. 3. Run `cargo run -p codex-cli -- doctor --json`. 4. Confirm the JSON contains `system.environment`, `git.environment`, and `terminal.title`; on Windows, confirm `terminal.env` details include console code pages and `VT processing` for stdout/stderr. 5. From a non-git directory, run the same `doctor --json` command and confirm the Git check reports `repo detected: false` rather than warning. Targeted tests: - `cargo test -p codex-cli doctor` - `cargo test -p codex-cli`
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
Run the following on Mac or Linux to install Codex CLI:
curl -fsSL https://chatgpt.com/codex/install.sh | sh
Run the following on Windows to install Codex CLI:
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"
Codex CLI can also be installed via the following package managers:
# 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.
