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Michael Bolin
d6748f741a
## Why `shell_zsh_fork` and unified exec need to remain independently controllable for enterprise rollouts, but we also need a third mode that composes them. That composed mode is intended to preserve unified exec command lifecycle support while letting the zsh fork provide more accurate `execv(2)` interception. Enabling `unified_exec_zsh_fork` by itself is intentionally not sufficient. It is a composition gate, not a dependency-enabling shortcut: - `unified_exec` selects the PTY-backed unified exec tool. - `shell_zsh_fork` opts into the zsh fork backend. - `unified_exec_zsh_fork` only allows those two already-enabled modes to be composed so local zsh unified exec commands can launch through the zsh fork. This separation is deliberate. Enterprises and staged rollouts must be able to enable or disable unified exec and zsh-fork independently. If `unified_exec_zsh_fork` implied either dependency, then enabling one under-development composition flag would silently activate a shell backend that the configured feature set left disabled. This PR introduces only the configuration and planning gate for that composition. Existing `shell_zsh_fork` behavior continues to use the standalone shell tool unless the new composition feature is explicitly enabled alongside both dependencies. ## What Changed - Added the under-development feature flag `unified_exec_zsh_fork`. - Added `UnifiedExecFeatureMode` so the three input feature flags collapse into `Disabled`, `Direct`, or `ZshFork` mode before tool planning. - Updated tool selection so zsh-fork composition requires `unified_exec`, `shell_zsh_fork`, and `unified_exec_zsh_fork`. - Kept the existing standalone zsh-fork shell tool behavior when only `shell_zsh_fork` is enabled. - Updated config schema output for the new feature flag. ## Verification - Added feature and tool-config coverage for the new gate. - Added planner coverage proving `shell_zsh_fork` remains standalone until composition is explicitly enabled. - Ran focused tests for `codex-features`, `codex-tools`, and the affected `codex-core` planner case. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/openai/codex/pull/24979). * #24982 * #24981 * #24980 * __->__ #24979
d6748f741a
·
2026-06-01 13:01:36 -07:00
7,023 Commits
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.