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# Motivation Browser Use origin-access prompts are MCP elicitations, not direct tool-call approval prompts, so they were bypassing the Guardian approval path. We need a generic opt-in that lets eligible MCP elicitations use Guardian when the current turn already routes approvals there. # Description Add a generic elicitation reviewer hook in codex-mcp and wire codex-core to pass a Guardian reviewer callback when creating the MCP connection manager. The reviewer validates explicit mcp_tool_call opt-in metadata, builds a Guardian MCP tool-call review request from server/tool/connector metadata and tool params, and maps Guardian approval, denial, timeout, and cancellation decisions back to MCP elicitation responses. The new option to trigger this in the `_meta` object is: ``` "codex_request_type": "approval_request", ``` # Testing - RUST_MIN_STACK=8388608 NEXTEST_STATUS_LEVEL=leak cargo nextest run --no-fail-fast --cargo-profile ci-test --test-threads 2 - cargo clippy --tests -- -D warnings - cargo fmt -- --config imports_granularity=Item --check - cargo shear - pnpm run format - python3 .github/scripts/verify_cargo_workspace_manifests.py - python3 .github/scripts/verify_tui_core_boundary.py - python3 .github/scripts/verify_bazel_clippy_lints.py - git diff --check
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, 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.