Feature request for the Codex VS Code extension:
Please add GitHub Copilot-style proposed edit review in VS Code.
In GitHub Copilot Chat, suggested code changes can appear in the editor with per-block Keep and Undo buttons before the edits are committed to the real files. This lets me safely review and accept/reject each suggested change.
I would like Codex in VS Code to support the same workflow, ideally using VS Code chat editing sessions/proposed edits.
Desired workflow:
1. Ask Codex for a modification.
2. Codex shows proposed changes in editor diff view.
3. I accept/reject each block using Keep/Undo.
4. Only accepted blocks are written to the real files.
I have configured Codex conservatively with sandbox_mode = "read-only" and approval_policy = "on-request", but I would also like this editor-level proposed-edit UI so I can use Codex agent mode while retaining full control over file modifications.
With some effort, the solution to my problem has been found:
1. Codex applies the edit directly to the original working-tree file.
2. Codex makes small, focused edits so the Git diff is easy to review.
3. I open the VS Code SOURCE CONTROL window, right-click the changed file, and choose **Open Changes**.
4. I review the Git diff and accept or Revert separate Blocks independently.
5. If I keep a Block, I use **Stage Block**; if I reject a Block, I use **Revert Block** from the Git diff view.
6. If the session is read-only, Codex asks for approval to edit the original file before making the change.
7. After editing, Codex summarizes the changed files and reminds me to review them in VS Code Source Control.
Conclusion: the feature request is cancelled.