Before calling any skill in this module: if you are about to call a skill with parameters guessed from its name or description, STOP — read this file (or fetch its schema via
GET /skills/recommend?includeSchema=true
) first. If you already have the parameter definitions from recommend/schema, you may proceed straight to dryRun.

Triggers

Opening or saving scenes
Loading additively
Switching active scene
Querying scene contents
打开或保存场景、叠加加载、切换活动场景、查询场景内容

Unity Scene Skills

Control Unity scenes - the containers that hold all your GameObjects.

Operating Mode

Approval：本模块 Mixed ——
```
scene_get_info
```
/
```
scene_get_hierarchy
```
/
```
scene_get_loaded
```
/
```
scene_find_objects
```
标
```
SkillMode.SemiAuto
```
，可直接执行；
```
scene_screenshot
```
/
```
scene_unload
```
/
```
scene_set_active
```
未设 Mode 字段（默认 FullAuto），Approval 模式下需 grant。
Auto / Bypass：FullAuto 直接执行。
含 NeverInSemi 高危 skill：
```
scene_create
```
/
```
scene_load
```
/
```
scene_save
```
（标
```
RiskLevel="high"
```
，因为切换/覆盖整个场景文件影响范围极大）。这些在 Approval/Auto 下返
```
MODE_FORBIDDEN
```
，仅 Bypass 或 Allowlist 命中可调。

DO NOT (common hallucinations):

```
scene_delete
```
/
```
scene_rename
```
do not exist → delete scene files via
```
asset_delete
```
, rename via
```
asset_move
```
```
scene_list
```
does not exist → use
```
scene_get_loaded
```
(loaded scenes) or
```
asset_find
```
with
```
t:Scene
```
(all scene assets)
```
scene_find_objects
```
is a simple name/tag/component filter; for regex/layer/path search use
```
gameobject_find
```
(SkillMode.SemiAuto, 只读，任何模式可直接调用)

Routing:

For detailed hierarchy tree → use
```
perception
```
module's
```
hierarchy_describe
```
For scene statistics → use
```
perception
```
module's
```
scene_summarize
```
For screenshot →
```
scene_screenshot
```
(this module) captures the Game View final composited image (all cameras + UI; in Play mode this is the live runtime frame);
```
camera_screenshot
```
(camera module, SkillMode.FullAuto) renders a single Game Camera off-screen

Skills Overview

Skill	Description
`scene_create`	Create a new scene
`scene_load`	Load a scene
`scene_save`	Save current scene
`scene_get_info`	Get scene information
`scene_get_hierarchy`	Get hierarchy tree
`scene_screenshot`	Capture screenshot
`scene_get_loaded`	Get all loaded scenes
`scene_unload`	Unload an additive scene
`scene_set_active`	Set active scene
`scene_find_objects`	Search objects by name/tag/component

Skills

scene_create

Create a new scene.

Parameter	Type	Required	Description
`scenePath`	string	Yes	Path for new scene (e.g., "Assets/Scenes/MyScene.unity")

scene_load

Load a scene.

Parameter	Type	Required	Default	Description
`scenePath`	string	Yes	-	Scene asset path
`additive`	bool	No	false	Load additively (keep current scene)

scene_save

Save the current scene.

Parameter	Type	Required	Description
`scenePath`	string	No	Save path (null = save current)

scene_get_info

Get current scene information.

No parameters.

Returns:

{sceneName, scenePath, isDirty, rootObjectCount, rootObjects: [{name, entityId, instanceId, childCount}]}

— root entries carry

childCount

, so you can tell which roots are worth descending into before paying for a hierarchy call.

scene_get_hierarchy

Get the scene hierarchy tree, depth-limited.

Parameter	Type	Required	Default	Description
`maxDepth`	int	No	3	Maximum hierarchy depth to expand

Returns:

{sceneName, hierarchy: [node, ...]}

where each node is

{name, entityId, instanceId, components: [type, ...], childCount, children}

childCount
vs
children
— how to tell a leaf from a truncation.
childCount
is always the node's real number of children, independent of
maxDepth
;
children
is
null
once the depth limit is reached. So:
childCount
children
Meaning
0
null
Genuine leaf — nothing below it.
> 0
null
Clipped by
maxDepth
— there are children you have not been shown.
> 0
array
Fully expanded at this level.
Never read
children: null
as "empty". When you see
childCount > 0
with
children: null
and you need what is below it, re-call with a larger
maxDepth
— the default is only
3
, so deep hierarchies are truncated by default — or query that subtree directly (
gameobject_find
,
hierarchy_describe
in the
perception
module).

`childCount`	`children`	Meaning
`0`	`null`	Genuine leaf — nothing below it.
`> 0`	`null`	Clipped by `maxDepth` — there are children you have not been shown.
`> 0`	array	Fully expanded at this level.

scene_screenshot

Capture a screenshot of the Game View — the final composited frame of all cameras + UI. In Play mode this is the live runtime image, not the Scene/editor view. For a single Game Camera's render use

camera_screenshot

instead.

Parameter	Type	Required	Default	Description
`filename`	string	No	"screenshot.png"	Bare filename only (no path separators); saved under `Assets/Screenshots/`
`width`	int	No	1920	Image width
`height`	int	No	1080	Image height
`returnImage`	bool	No	false	Also return a PNG as base64 in the response ( `imageBase64` ), for clients without filesystem access
`maxDimension`	int	No	1280	Only used when `returnImage=true` ; downscales the returned image (not the saved file) so its longer edge is ≤ this value. Clamped to 256–4096

Returns:

{success, path, width, height, isPlaying, note}

isPlaying

indicates whether the frame is a live runtime image (Play mode) or a static Edit-mode frame. Adds

{imageBase64, imageWidth, imageHeight, imageBytes}

when

returnImage=true

. If the base64 payload would exceed 8MB, the skill returns an error asking for a smaller

maxDimension

— the file at

path

is still saved.

Async:

ScreenCapture.CaptureScreenshot

writes the PNG ~1 frame later. If reading

path

immediately fails, wait ~200ms and retry.

returnImage

does not read that file back — since it isn't written yet — it instead does a separate synchronous capture of the Game View's current backbuffer (

ScreenCapture.CaptureScreenshotAsTexture

), so the returned image may be a moment older than the file eventually written to

path

returnImage usage tip: a local agent that can read files (e.g. Claude Code against a local Unity Editor) should generally omit

returnImage

and just read the PNG at

path

once it's written — it's cheaper on tokens. Use

returnImage=true

for remote/MCP clients that have no filesystem access to the Unity project.

scene_get_loaded

Get list of all currently loaded scenes.

No parameters.

Returns:

{success, scenes: [{name, path, isActive, isDirty}]}

scene_unload

Unload a loaded scene (additive).

Parameter	Type	Required	Description
`sceneName`	string	Yes	Scene name to unload

scene_set_active

Set the active scene (for multi-scene editing).

Parameter	Type	Required	Description
`sceneName`	string	Yes	Scene name to set active

scene_find_objects

Search GameObjects by name pattern, tag, or component type. For advanced search (regex, layer, path) use gameobject_find.

Parameter	Type	Required	Default	Description
`namePattern`	string	No	-	Name substring to match (case-insensitive)
`tag`	string	No	-	Filter by tag
`componentType`	string	No	-	Filter by component type name
`limit`	int	No	50	Max results to return

Returns:

{success, count, objects: [{name, path, instanceId, active, tag}]}

Example Usage

python

import unity_skills

# Create a new scene
unity_skills.call_skill("scene_create", scenePath="Assets/Scenes/Level1.unity")

# Load an existing scene
unity_skills.call_skill("scene_load", scenePath="Assets/Scenes/MainMenu.unity")

# Load scene additively (multi-scene)
unity_skills.call_skill("scene_load", scenePath="Assets/Scenes/UI.unity", additive=True)

# Get current scene info
info = unity_skills.call_skill("scene_get_info")
print(f"Scene: {info['name']}, Objects: {info['rootObjectCount']}")

# Get full hierarchy (useful for understanding scene structure)
hierarchy = unity_skills.call_skill("scene_get_hierarchy", maxDepth=5)

# Save scene
unity_skills.call_skill("scene_save")

# Take screenshot
unity_skills.call_skill("scene_screenshot", filename="preview.png", width=1920, height=1080)

Best Practices

Always save before loading a new scene
Use additive loading for UI overlays
Keep scene hierarchy organized with empty parent objects
Use
```
scene_get_info
```
to verify scene state
Screenshots are saved under
```
Assets/Screenshots/
```
(filename is a bare name; any path separators are stripped)

Exact Signatures

Exact names, parameters, defaults, and returns are defined by

GET /skills/schema

unity_skills.get_skill_schema()

, not by this file.

Common Errors

Full transport-level codes (COMPILING/RATE_LIMIT etc.) → ../../references/protocol-error-codes.md

Error	Trigger	Fix
`TARGET_NOT_FOUND`	The requested scene is not found or not currently loaded (e.g., `Scene not found` , `Scene is not loaded` ).	Verify the scene path with `asset_find` or list loaded scenes with `scene_get_loaded` , then retry.
`MISSING_PARAM`	A required parameter is missing, such as `scenePath` for `scene_create` , or the current scene has no save path.	Provide `scenePath` or save the scene once before the operation.
`SEMANTIC_INVALID`	An invalid tag or component type was passed to `scene_find_objects` .	Use a valid tag or component type name, and consider `gameobject_find` for more complex filters.
`SKILL_ERROR`	A state constraint blocked the operation, such as attempting to unload the only loaded scene.	Adjust the request to a valid editor state (e.g., keep at least one scene loaded).

unity-scene

NPX Install

Tags

SKILL.md Content

Triggers

Unity Scene Skills

Operating Mode

Skills Overview

Skills

scene_create

scene_load

scene_save

scene_get_info

scene_get_hierarchy

scene_screenshot

scene_get_loaded

scene_unload

scene_set_active

scene_find_objects

Example Usage

Best Practices

Exact Signatures

Common Errors