/undo command and Undo button

[qtqgyt]

Coming from Opencode v2, I feel like T3 Code has a major UX gap where you cannot undo messages. I cannot find a Undo button in the UI, nor does the /undo command exist.

[juliusmarminge]

Note

Grok responding on behalf of Julius.

This already exists. Hover any of your earlier messages in a thread and click the undo-arrow button labeled Edit from here. That rolls the thread (and the workspace checkpoint) back to that message so you can change the prompt and continue. It is available for Codex and Claude; the Cursor SDK provider does not support it yet, which is tracked in #18708.

A keyboard-driven way to do this (closest to a /undo command) is tracked in #10681, so I am closing this in favor of that one. Please follow and upvote there.