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In a [recent PR](https://github.com/openai/codex/pull/9182), I made some improvements to config error messages so errors didn't leave app server clients in a dead state. This is a follow-on PR to make these error messages more readable and actionable for both TUI and GUI users. For example, see #9668 where the user was understandably confused about the source of the problem and how to fix it. The improved error message: 1. Clearly identifies the config file where the error was found (which is more important now that we support layered configs) 2. Provides a line and column number of the error 3. Displays the line where the error occurred and underlines it For example, if my `config.toml` includes the following: ```toml [features] collaboration_modes = "true" ``` Here's the current CLI error message: ``` Error loading config.toml: invalid type: string "true", expected a boolean in `features` ``` And here's the improved message: ``` Error loading config.toml: /Users/etraut/.codex/config.toml:43:23: invalid type: string "true", expected a boolean | 43 | collaboration_modes = "true" | ^^^^^^ ``` The bulk of the new logic is contained within a new module `config_loader/diagnostics.rs` that is responsible for calculating the text range for a given toml path (which is more involved than I would have expected). In addition, this PR adds the file name and text range to the `ConfigWarningNotification` app server struct. This allows GUI clients to present the user with a better error message and an optional link to open the errant config file. This was a suggestion from @.bolinfest when he reviewed my previous PR.
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 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, Team, 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.