40ab71a985
## Summary - validate `js_repl` Node compatibility during session startup when the experiment is enabled - if Node is missing or too old, disable `js_repl` and `js_repl_tools_only` for the session before tools and instructions are built - surface that startup disablement to users through the existing startup warning flow instead of only logging it - reuse the same compatibility check in js_repl kernel startup so startup gating and runtime behavior stay aligned - add a regression test that verifies the warning is emitted and that the first advertised tool list omits `js_repl` and `js_repl_reset` when Node is incompatible ## Why Today `js_repl` can be advertised based only on the feature flag, then fail later when the kernel starts. That makes the available tool list inaccurate at the start of a conversation, and users do not get a clear explanation for why the tool is unavailable. This change makes tool availability reflect real startup checks, keeps the advertised tool set stable for the lifetime of the session, and gives users a visible warning when `js_repl` is disabled. ## Testing - `just fmt` - `cargo test -p codex-core --test all js_repl_is_not_advertised_when_startup_node_is_incompatible`
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, 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.