A Codex GUI that takes each change all the way to the merge
Yes, there is a GUI for Codex: Oxide drives the codex CLI you already use and shows which checks actually ran before you merge.
Oxide is a free, open-source desktop app for agentic coding that drives Claude Code, Codex and Antigravity CLI in one window and shows what each change touched and what was actually checked, so you can merge with confidence.
Codex's closing message says what it believes it did. The Verification Dossier keeps that message apart and shows which Verification commands actually ran, which are stale and what no check covers.
Nothing in it is a score, and no LLM computes it: how the Dossier is built.
Run Codex and Claude Code in the same Project, one Thread each, each with its own Model and Effort. Let one write and the other run a Blind review: the reviewer sees only the diff and the issue, never the writer's conversation.
How a Blind review works, and the full setup in Claude Code and Codex together.
Codex still does the work, with your login and your plan. Its Slash commands are in the composer, and the usage limits Codex reports are shown next to the Thread.
Oxide drives the CLI rather than replacing it: install Codex once, and it shows up as a Provider.
Review the change, leave Line comments, commit, push and open the pull request without switching to a browser.
How to review AI-generated code is the method behind it, with or without Oxide.
Questions
Yes. Oxide drives the codex CLI rather than replacing it. Install Codex, log in once in a terminal, then launch Oxide and Codex appears as a Provider. Requirements.
Yes. Every Thread has its own Model and Effort, picked when you start it and changeable between Turns.
Yes, when Codex reports them: the 5-hour and weekly limits appear in the app, so you see how much is left before you start a long Turn.
Yes. Oxide runs on macOS on Apple Silicon and Windows x64, and on Windows it drives the codex CLI installed there.
Yes. Start a Blind review and pick Claude Code as the reviewer: it sees only the diff and the issue, never the Codex conversation, and its findings become Line comments you keep or dismiss. The full workflow.
Take your next Turn all the way to the merge.
Oxide drives the Claude Code, Codex or Antigravity CLI you already use. Open a Project, start a Thread and review what comes back.