## Summary - stop publicly re-exporting the internally used `SKILLS_INTRO_WITH_ALIASES` constant - keep the constant and all skills rendering behavior unchanged - preserve every integration helper, API, fixture, assertion, and module used by tests ## Scope guardrails This revision keeps all remote/network-facing functionality and every line introduced by `jif <jif@openai.com>`. Following the test-preservation audit, it also restores the in-process RMCP test transport, the original `codex-mcp` fixture, `PluginLoadOutcome::effective_skill_roots` and its assertions, the `EffectiveSkillRoots` API family, the test-only apps renderer, and the TUI dead-code annotation. Those files now match the PR base exactly. No test imports or directly references the remaining public skills export being narrowed. ## Validation - repository-wide test-reference audit: no test-used code remains deleted or narrowed - deleted-line `git blame` audit: zero Jif-authored deletions - `cargo test -p codex-core-plugins -p codex-mcp -p codex-rmcp-client --lib`: 467 passed - `cargo test -p codex-core --lib apps::render`: 2 passed - `cargo test -p codex-core-skills --lib render::tests`: 19 passed - `cargo check -p codex-core-skills --all-targets`: passed - `just fix -p codex-core-skills`: passed - `just fmt`: passed - `git diff --check`: passed The full local `codex-core-skills` suite passed 106/108 tests; two loader tests detected an ambient repository skills root outside the package and failed their isolation assertions. The scoped renderer suite and all-target compile pass, and CI runs in an isolated environment. Final code delta: 1 insertion, 2 deletions across 2 files.
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.
