Agent IDE — Codex fork for AI-native development environment
42e22f3bde
## Summary This PR adds an **experimental, feature-gated `js_repl` core runtime** so models can execute JavaScript in a persistent REPL context across tool calls. The implementation integrates with existing feature gating, tool registration, prompt composition, config/schema docs, and tests. ## What changed - Added new experimental feature flag: `features.js_repl`. - Added freeform `js_repl` tool and companion `js_repl_reset` tool. - Gated tool availability behind `Feature::JsRepl`. - Added conditional prompt-section injection for JS REPL instructions via marker-based prompt processing. - Implemented JS REPL handlers, including freeform parsing and pragma support (timeout/reset controls). - Added runtime resolution order for Node: 1. `CODEX_JS_REPL_NODE_PATH` 2. `js_repl_node_path` in config 3. `PATH` - Added JS runtime assets/version files and updated docs/schema. ## Why This enables richer agent workflows that require incremental JavaScript execution with preserved state, while keeping rollout safe behind an explicit feature flag. ## Testing Coverage includes: - Feature-flag gating behavior for tool exposure. - Freeform parser/pragma handling edge cases. - Runtime behavior (state persistence across calls and top-level `await` support). ## Usage ```toml [features] js_repl = true ``` Optional runtime override: - `CODEX_JS_REPL_NODE_PATH`, or - `js_repl_node_path` in config. #### [git stack](https://github.com/magus/git-stack-cli) - 👉 `1` https://github.com/openai/codex/pull/10674 - ⏳ `2` https://github.com/openai/codex/pull/10672 - ⏳ `3` https://github.com/openai/codex/pull/10671 - ⏳ `4` https://github.com/openai/codex/pull/10673 - ⏳ `5` https://github.com/openai/codex/pull/10670 |
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| .github | ||
| .vscode | ||
| codex-cli | ||
| codex-rs | ||
| docs | ||
| patches | ||
| scripts | ||
| sdk/typescript | ||
| shell-tool-mcp | ||
| third_party | ||
| .bazelignore | ||
| .bazelrc | ||
| .bazelversion | ||
| .codespellignore | ||
| .codespellrc | ||
| .gitignore | ||
| .markdownlint-cli2.yaml | ||
| .npmrc | ||
| .prettierignore | ||
| .prettierrc.toml | ||
| AGENTS.md | ||
| announcement_tip.toml | ||
| BUILD.bazel | ||
| CHANGELOG.md | ||
| cliff.toml | ||
| defs.bzl | ||
| flake.lock | ||
| flake.nix | ||
| justfile | ||
| LICENSE | ||
| MODULE.bazel | ||
| MODULE.bazel.lock | ||
| NOTICE | ||
| package.json | ||
| pnpm-lock.yaml | ||
| pnpm-workspace.yaml | ||
| rbe.bzl | ||
| README.md | ||
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 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.