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## Why #29113 moved remote sandbox setup and enforcement to the exec server. That gives the executor ownership of the platform-specific work: a Linux executor chooses and runs a Linux sandbox even when the Codex orchestrator is running on macOS or Windows. It also means the orchestrator no longer knows which concrete sandbox the executor selected. When that sandbox blocks a remote command, the orchestrator currently sees only a failed process and can treat the denial as an ordinary command failure. The existing sandbox approval and retry path is then skipped. This PR lets the executor report one portable fact: > This command probably failed because the executor sandbox blocked it. The executor keeps its concrete sandbox type private. The protocol sends only the semantic result. ## Example Suppose a local macOS Codex session asks a Linux devbox to write outside the allowed workspace. Before this PR: ```text Linux sandbox blocks the write -> remote process exits with "Permission denied" -> local orchestrator sees an ordinary command failure -> the normal sandbox approval and retry path can be skipped ``` With this PR: ```text Linux sandbox blocks the write -> executor reports sandboxDenied: true -> unified exec returns UnifiedExecError::SandboxDenied -> the existing approval prompt is shown -> an approved retry runs through the existing unsandboxed retry path ``` ## What changes ### The executor remembers its selected sandbox The prepared remote process now retains the executor-selected `SandboxType`. This value never crosses the executor boundary. Commands started without a sandbox retain `SandboxType::None` and are never reported as sandbox denials. ### The executor uses the existing denial heuristic The existing local denial heuristic moves from `codex-core` into the shared `codex-sandboxing` crate. When a sandboxed remote process exits, the executor: 1. waits the same short output grace period used by local unified exec; 2. reads the output currently available in the existing retained output buffer; 3. runs the existing heuristic using the exit code and common denial messages; 4. stores the yes/no result before publishing the process exit. This deliberately matches the old local unified-exec behavior. It does not add a new streaming classifier, another output buffer, or stronger output-retention guarantees. ### The protocol reports a portable boolean `process/read` gains `sandboxDenied`: ```json { "exited": true, "exitCode": 1, "closed": false, "sandboxDenied": true } ``` The field defaults to `false` when an older executor omits it. The response does not expose the executor sandbox implementation or executor-native paths. ### Unified exec uses the existing error path The exec-server client carries `sandboxDenied` into the unified process state. If it is true, unified exec returns the existing `SandboxDenied` error instead of trying to classify remote output using an orchestrator-side sandbox type. Remote process exit remains visible as soon as the process exits. This PR does not wait for stdout or stderr to close and does not change the existing process lifecycle. ## Scope This PR is intentionally limited to matching the existing local unified-exec behavior for the initial command execution path. It does not add: - incremental denial tracking across the full output stream; - new denial handling for commands completed later through `write_stdin`; - new guarantees for preserving the semantic flag during the narrow reconnect-recovery race. Those can be considered separately if the same behavior is added for local execution. ## Test coverage One remote end-to-end integration test covers the complete intended flow: ```text remote read-only sandbox -> denied write -> executor reports the denial -> Codex requests approval -> user approves -> retry succeeds on the remote executor ``` Existing lifecycle coverage continues to verify that remote process exit is reported before late output streams close.
9f06cf1a09
·
2026-06-22 19:33:28 +02:00
7,678 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.