editor.state

Editor state queries and actions (selection, world info, viewport, undo/redo)

`editor.state.getSelection`

Returns the currently selected actors in the level editor.

No parameters.

Returns

Array of objects:

Field	Type	Description
`name`	string	Actor display label
`class`	string	Actor class name
`path`	string	Full object path

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.getSelection" }

Example Response

{
  "jsonrpc": "2.0", "id": 1,
  "result": [
    { "name": "Cube", "class": "StaticMeshActor", "path": "/Game/Maps/MyLevel.MyLevel:PersistentLevel.Cube" }
  ]
}

`editor.state.getOpenEditors`

Returns all currently open asset editors.

No parameters.

Returns

Array of objects:

Field	Type	Description
`name`	string	Asset name
`type`	string	Asset class name
`asset_path`	string	Full asset path

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.getOpenEditors" }

`editor.state.getWorldInfo`

Returns information about the current editor world.

No parameters.

Returns

Field	Type	Description
`level_name`	string	Current map name
`sub_levels`	array	Streaming sub-levels (each with name, is_loaded)
`play_state`	string	"stopped", "playing", or "simulating"

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.getWorldInfo" }

Example Response

{
  "jsonrpc": "2.0", "id": 1,
  "result": { "level_name": "Lvl_FirstPerson", "sub_levels": [], "play_state": "stopped" }
}

`editor.state.getViewportState`

Returns the active viewport's camera state.

No parameters.

Returns

Field	Type	Description
`position`	object	{x, y, z} camera location
`rotation`	object	{pitch, yaw, roll} camera rotation
`view_mode_index`	number	Numeric view mode index
`view_mode`	string	Human-readable view mode name
`is_realtime`	bool	Whether viewport is in realtime mode
`is_perspective`	bool	Whether camera is perspective (vs orthographic)

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.getViewportState" }

`editor.state.getUndoStack`

Returns the most recent undo history entries (up to 20).

No parameters.

Returns

Array of objects:

Field	Type	Description
`title`	string	Transaction description
`index`	number	Position in undo queue
`is_undone`	bool	Whether this entry has been undone

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.getUndoStack" }

`editor.state.getPlayState`

Returns detailed PIE (Play-in-Editor) state information.

No parameters.

Returns

Field	Type	Description
`play_state`	string	"stopped", "playing", or "simulating"
`is_playing`	bool	Whether a PIE session is active
`is_simulating`	bool	Whether simulating in editor

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.getPlayState" }

`editor.state.getProjectInfo`

Returns project and engine metadata.

No parameters.

Returns

Field	Type	Description
`project_name`	string	Current project name
`engine_version`	string	Full engine version string
`project_dir`	string	Project root directory
`project_content_dir`	string	Project Content/ directory
`current_level`	string	Currently loaded level name

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.getProjectInfo" }

Example Response

{
  "jsonrpc": "2.0", "id": 1,
  "result": {
    "project_name": "MyProject",
    "engine_version": "5.7.2-0+++UE5+Release-5.7",
    "project_dir": "../../../MyProject/",
    "project_content_dir": "../../../MyProject/Content/",
    "current_level": "Lvl_FirstPerson"
  }
}

`editor.state.undo`

Undoes the most recent undoable action.

No parameters.

Returns

Field	Type	Description
`success`	bool	Whether the undo was performed
`undone_action`	string	Description of the undone transaction (present when success is true)
`reason`	string	Why undo was not possible (present when success is false)

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.undo" }

Example Response

{
  "jsonrpc": "2.0", "id": 1,
  "result": { "success": true, "undone_action": "AgentUX: Spawn Actor" }
}

`editor.state.redo`

Redoes the most recently undone action.

No parameters.

Returns

Field	Type	Description
`success`	bool	Whether the redo was performed
`redone_action`	string	Description of the redone transaction (present when success is true)
`reason`	string	Why redo was not possible (present when success is false)

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.redo" }

Example Response

{
  "jsonrpc": "2.0", "id": 1,
  "result": { "success": true, "redone_action": "AgentUX: Spawn Actor" }
}

`editor.state.openAssetEditor`

Opens an asset editor for the specified asset. If the asset is already open, brings its editor to the foreground.

Name	Type	Required	Description
`asset_path`	string	Yes	Full UE asset path (e.g. `/Game/Materials/M_Ground`)

Returns

Field	Type	Description
`success`	bool	Whether the editor was opened successfully
`asset_path`	string	The asset path that was opened
`asset_name`	string	The asset's short name
`asset_class`	string	The asset's class name

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.openAssetEditor",
  "params": { "asset_path": "/Game/Materials/M_Ground" } }

Example Response

{
  "jsonrpc": "2.0", "id": 1,
  "result": {
    "success": true,
    "asset_path": "/Game/Materials/M_Ground",
    "asset_name": "M_Ground",
    "asset_class": "Material"
  }
}

`editor.state.closeAssetEditor`

Closes all editors currently open for the specified asset.

Name	Type	Required	Description
`asset_path`	string	Yes	Full UE asset path (e.g. `/Game/Materials/M_Ground`)

Returns

Field	Type	Description
`success`	bool	Whether any editors were closed (false if none were open)
`editors_closed`	number	Number of editor instances that were closed
`asset_path`	string	The asset path that was closed

Example Request

{ "jsonrpc": "2.0", "id": 1, "method": "editor.state.closeAssetEditor",
  "params": { "asset_path": "/Game/Materials/M_Ground" } }

Example Response

{
  "jsonrpc": "2.0", "id": 1,
  "result": {
    "success": true,
    "editors_closed": 1,
    "asset_path": "/Game/Materials/M_Ground"
  }
}