codex

mirror of https://github.com/openai/codex.git synced 2026-10-27 18:48:37 +00:00

T

Adam Perry @ OpenAI 44954d1b4b Serialize concurrent MCP stdin writes (#33180 )

## What changed

- Guard executor-backed MCP stdio sends with a single-permit semaphore so a
  second JSON-RPC message cannot start writing while the first write is pending.
- Add a regression test that drives two concurrent sends and verifies the
  process receives each newline-delimited message in order without overlap.

GitOrigin-RevId: 30c2e51827ecf57b5eb23d9ad1e876734d6e784e

2026-07-14 22:16:52 +00:00

.codex

fix: restore Codex environment setup table (#31337 )

2026-07-07 02:08:50 +00:00

.devcontainer

build: run buildifier from just fmt (#28125 )

2026-06-13 21:43:39 -07:00

.github

Expand agent core ownership (#31675 )

2026-07-08 18:04:44 -07:00

.vscode

Recommend Bazel VSCode extension. (#25161 )

2026-05-29 15:24:41 -07:00

bazel

bench: add codex help e2e macrobenchmark (#31295 )

2026-07-09 17:23:44 -07:00

codex-cli

Detect Codex installs managed by pnpm (#31503 )

2026-07-08 12:17:58 -04:00

codex-rs

Serialize concurrent MCP stdin writes (#33180 )

2026-07-14 22:16:52 +00:00

docs

[codex] Remove child AGENTS.md prompt experiment (#28993 )

2026-06-18 16:13:07 -07:00

patches

ci: restore custom Windows runner with hermetic LLVM 0.7.9 (#29143 )

2026-06-22 17:26:30 +00:00

scripts

code-mode: fix installation on darwin (#31876 )

2026-07-09 13:11:28 -07:00

sdk

[codex] bundle code mode host in release packages (#30202 )

2026-07-06 16:58:05 -07:00

third_party

bazel: add PowerShell to Wine test harness (#28120 )

2026-06-14 04:52:32 +00:00

tools

test: run app-server integration tests under Wine (#29788 )

2026-06-24 05:23:29 +00:00

.bazelignore

[bazel] Improve runfiles handling (#10098 )

2026-01-29 00:15:44 +00:00

.bazelrc

ci: increase Windows Bazel local test jobs (#31352 )

2026-07-07 09:55:27 -07:00

.bazelversion

[bazel] Upgrade to bazel9 (#9576 )

2026-01-21 13:25:36 +00:00

.codespellignore

[codex] Update imagegen system skill (#18852 )

2026-04-22 15:08:10 +00:00

.codespellrc

Remove js_repl feature (#19410 )

2026-04-24 17:49:29 -07:00

.gitattributes

Mark hooks schema fixtures as generated (#19194 )

2026-04-23 14:11:16 -07:00

.gitignore

ci: fail jobs that dirty the worktree (#29720 )

2026-06-24 11:06:35 -07:00

.markdownlint-cli2.yaml

fix(tui): document paste-burst state machine (#9020 )

2026-01-13 11:48:31 -08:00

.npmrc

chore: migrate to pnpm for improved monorepo management (#287 )

2025-04-18 16:25:15 -07:00

.prettierignore

[apply-patch] Clean up apply-patch tool definitions (#2539 )

2025-08-21 20:07:41 -07:00

.prettierrc.toml

Initial commit

2025-04-16 12:56:08 -04:00

.worktreeinclude

chore: use .worktreeinclude for user Bazel config (#31271 )

2026-07-06 16:12:07 -07:00

AGENTS.md

test: remove TestAppServer constructors (#31452 )

2026-07-08 17:50:18 +00:00

announcement_tip.toml

Add CLI update announcement (#17942 )

2026-04-15 11:39:06 -07:00

BUILD.bazel

ci: cross-compile Windows Bazel tests (#20585 )

2026-05-01 15:55:28 -07:00

CHANGELOG.md

Documentation improvement: add missing period (#3754 )

2025-10-30 13:01:33 -07:00

defs.bzl

code-mode: move to hosted mode by default (#31500 )

2026-07-08 11:06:58 -07:00

flake.lock

fix(nix): update flake for newer Rust toolchain requirements (#10302 )

2026-01-31 11:34:53 -08:00

flake.nix

fix(nix): use correct version from Cargo.toml in flake build (#11770 )

2026-02-13 12:19:25 -08:00

justfile

bench: add e2e benchmark entrypoints (#31428 )

2026-07-09 17:31:44 -07:00

LICENSE

Initial commit

2025-04-16 12:56:08 -04:00

MODULE.bazel

Upgrade bundled OpenSSL to 3.6.3 (#29487 )

2026-06-23 00:19:54 +02:00

MODULE.bazel.lock

Remove the legacy exec policy engine (#32093 )

2026-07-10 09:09:22 +00:00

NOTICE

Remove js_repl feature (#19410 )

2026-04-24 17:49:29 -07:00

package.json

Update vulnerable Hono and fast-uri dependencies (#29650 )

2026-06-23 16:19:19 +01:00

pnpm-lock.yaml

Update vulnerable Hono and fast-uri dependencies (#29650 )

2026-06-23 16:19:19 +01:00

pnpm-workspace.yaml

Harden package-manager install policy (#19163 )

2026-04-24 14:36:19 -04:00

rbe.bzl

build: run buildifier from just fmt (#28125 )

2026-06-13 21:43:39 -07:00

README.md

docs: add tag to fenced code block (#30851 )

2026-07-01 10:59:02 -07:00

SECURITY.md

[docs] Restore SECURITY.md update from PR 17848 (#18004 )

2026-04-15 15:09:39 -07:00

workspace_root_test_launcher.bat.tpl

code-mode: move to hosted mode by default (#31500 )

2026-07-08 11:06:58 -07:00

workspace_root_test_launcher.sh.tpl

ci: cross-compile Windows Bazel tests (#20585 )

2026-05-01 15:55:28 -07:00

README.md

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
Linux
- x86_64: codex-x86_64-unknown-linux-musl.tar.gz
- arm64: codex-aarch64-unknown-linux-musl.tar.gz

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.