unity-history

Use the history_undo skill with an optional steps parameter to revert one or more operations on Unity's native undo stack. It returns the number of steps actually undone, and history_redo replays them if needed.

Call history_get_current, which takes no parameters and returns the current undo group name and group index. This is a read-only operation safe to run in any approval mode.

No, Unity's undo history cannot be cleared through the API, so no history_clear skill exists. The undo stack is managed automatically by the Unity Editor itself.

history_undo replays Unity's native Undo/Redo stack for simple scene edits, while workflow module skills handle persistent task-level or conversation-level undo with snapshot payloads. Use the workflow module for structured task rollback.

Those skills do not exist; they are common hallucinations. Use history_get_current for the current undo group, and rely on Unity to manage history persistence automatically.