---
name: besty0728/unity-history
source: https://app.decimal.ai/s/besty0728-unity-history@2/SKILL.md
source_sha256: ca811139287e
---

## Triggers
- Reviewing or navigating undo history
- Stepping undo/redo
- Auditing what changed
- 查看或浏览撤销历史、逐步撤销/重做、审查改动

# History Skills

Manage Unity Editor undo/redo history.

## Operating Mode

本模块 `history_get_current`（纯读）标 `SkillMode.SemiAuto`，三档下均可直接执行；`history_undo` / `history_redo` 会改变场景状态，为默认 `SkillMode.FullAuto`（Operation=Execute），Approval 模式下需 grant。**不含 NeverInSemi 高危 skill**。

**DO NOT** (common hallucinations):
- `history_list` / `history_get` do not exist → use `history_get_current` for current undo group
- `history_clear` does not exist → Unity undo history cannot be cleared via API
- `history_save` does not exist → undo history is managed by Unity automatically

**Routing**:
- For simple undo/redo → `history_undo` / `history_redo` (this module) or `editor_undo` / `editor_redo`
- For persistent task-level undo → use `workflow` module
- For conversation-level undo → use `workflow` module's `workflow_session_undo`

## Skills

### `history_undo`
Undo the last operation.
**Parameters:**
- `steps` (int, optional, default 1): Number of operations to undo.

### `history_redo`
Redo the last undone operation.
**Parameters:**
- `steps` (int, optional, default 1): Number of operations to redo.

### `history_get_current`
Get current undo history state.
**Parameters:** None.

## Exact Signatures

Exact names, parameters, defaults, and returns are defined by `GET /skills/schema` or `unity_skills.get_skill_schema()`, not by this file.