CLI: Add /rewind checkpoint restore that reverts both chat context and Codex-applied code edits

### What variant of Codex are you using? CLI ### What feature would you like to see? Add a native `/rewind` checkpoint flow that restores both: - conversation state - Codex-applied workspace edits from the same selected checkpoint. **Current behavior**: Esc rewind only rewinds conversation/history (fork point), but does not revert code changes made after that point. **Requested behavior**: - `/rewind` shows recent checkpoints with: - timestamp - prompt snippet - files changed - Selecting a checkpoint rewinds chat and reverts Codex-made edits after that checkpoint. - Provide a pre-apply preview of file changes to be reverted. - Allow editing the restored prompt before resubmitting. Safety requirements: - Only revert Codex-created edits after the selected checkpoint. - Do not touch unrelated local changes that existed before checkpoint creation. - If any file cannot be cleanly restored, show conflicts and require explicit confirmation before partial apply. ### Additional information Repro for current gap: 1. Ask Codex CLI to modify files. 2. Press Esc twice to rewind a prior user message and fork. 3. Conversation rewinds, but prior file edits remain in the working tree. Workarounds today (`/diff`, `!git diff`, manual `git restore/reset`) are useful but fragmented. A unified checkpoint rewind would make iterative prompting much safer and faster. Related context: #9203, #4487, #8819.

Posted by Alek2077 on Feb 12, 2026, 7:05 PM

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