## Why The zsh integration tests were still brittle in two ways: - they relied on `CODEX_TEST_ZSH_PATH` / environment-specific setup, so they often did not exercise the patched zsh fork that `shell-tool-mcp` ships - once the tests consistently used the vendored zsh fork, they exposed real Linux-specific zsh-fork issues in CI In particular, the Linux failures were not just test noise: - the zsh-fork launch path was dropping `ExecRequest.arg0`, so Linux `codex-linux-sandbox` arg0 dispatch did not run and zsh wrapper-mode could receive malformed arguments - the `turn_start_shell_zsh_fork_subcommand_decline_marks_parent_declined_v2` test uses the zsh exec bridge (which talks to the parent over a Unix socket), but Linux restricted sandbox seccomp denies `connect(2)`, causing timeouts on `ubuntu-24.04` x86/arm This PR makes the zsh tests consistently run against the intended vendored zsh fork and fixes/hardens the zsh-fork path so the Linux CI signal is meaningful. ## What Changed - Added a single shared test-only DotSlash file for the patched zsh fork at `codex-rs/exec-server/tests/suite/zsh` (analogous to the existing `bash` test resource). - Updated both app-server and exec-server zsh tests to use that shared DotSlash zsh (no duplicate zsh DotSlash file, no `CODEX_TEST_ZSH_PATH` dependency). - Updated the app-server zsh-fork test helper to resolve the shared DotSlash zsh and avoid silently falling back to host zsh. - Kept the app-server zsh-fork tests configured via `config.toml`, using a test wrapper path where needed to force `zsh -df` (and rewrite `-lc` to `-c`) for the subcommand-decline test. - Hardened the app-server subcommand-decline zsh-fork test for CI variability: - tolerate an extra `/responses` POST with a no-op mock response - tolerate non-target approval ordering while remaining strict on the two `/usr/bin/true` approvals and decline behavior - use `DangerFullAccess` on Linux for this one test because it validates zsh approval flow, not Linux sandbox socket restrictions - Fixed zsh-fork process launching on Linux by preserving `req.arg0` in `ZshExecBridge::execute_shell_request(...)` so `codex-linux-sandbox` arg0 dispatch continues to work. - Moved `maybe_run_zsh_exec_wrapper_mode()` under `arg0_dispatch_or_else(...)` in `app-server` and `cli` so wrapper-mode handling coexists correctly with arg0-dispatched helper modes. - Consolidated duplicated `dotslash -- fetch` resolution logic into shared test support (`core/tests/common/lib.rs`). - Updated `codex-rs/exec-server/tests/suite/accept_elicitation.rs` to use DotSlash zsh and hardened the zsh elicitation test for Bazel/zsh differences by: - resolving an absolute `git` path - running `git init --quiet .` - asserting success / `.git` creation instead of relying on banner text ## Verification - `cargo test -p codex-app-server turn_start_zsh_fork -- --nocapture` - `cargo test -p codex-exec-server accept_elicitation -- --nocapture` - `bazel test //codex-rs/exec-server:exec-server-all-test --test_output=streamed --test_arg=--nocapture --test_arg=accept_elicitation_for_prompt_rule_with_zsh` - CI (`rust-ci`) on the final cleaned commit: `Tests — ubuntu-24.04 - x86_64-unknown-linux-gnu` and `Tests — ubuntu-24.04-arm - aarch64-unknown-linux-gnu` passed in [run 22291424358](https://github.com/openai/codex/actions/runs/22291424358)
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.
