italink/unrealclientprotocol/unreal-asset-operation

Name: unreal-asset-operation
Author: italink

Claude Code and agent skill by italink/unrealclientprotocol

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Query and manage UE assets via UCP. Use when the user asks about asset search, dependencies, referencers, asset CRUD, asset management, getting selected/current assets, opening/closing asset editors, or any editor asset operation in Unreal Engine.

Install

npx vskill@latest install italink/unrealclientprotocol/unreal-asset-operation

SKILL.md

Unreal Asset Operations

Operate on Unreal Engine assets through UCP's call command. The core approach is to obtain the IAssetRegistry instance and call its rich API directly, combined with engine asset libraries for CRUD operations.

Prerequisite: The unreal-client-protocol skill must be available and the UE editor must be running with the UCP plugin enabled.

Custom Function Library

UAssetEditorOperationLibrary (Editor)

CDO Path: /Script/UnrealClientProtocolEditor.Default__AssetEditorOperationLibrary

Function	Params	Returns	Description
`GetAssetRegistry`	(none)	`IAssetRegistry` object	Returns the AssetRegistry instance. Call its functions directly via UCP `call`.
`ForceDeleteAssets`	`AssetPaths` (array of string)	`int32` — number deleted	Force-deletes assets ignoring references. Wraps `ObjectTools::ForceDeleteObjects`.
`FixupReferencers`	`AssetPaths` (array of string)	`bool`	Cleans up redirectors left after rename/consolidate. Wraps `IAssetTools::FixupReferencers`.

Getting the AssetRegistry

json

{"object":"/Script/UnrealClientProtocolEditor.Default__AssetEditorOperationLibrary","function":"GetAssetRegistry"}

The returned object path can then be used as the object parameter for subsequent calls to IAssetRegistry functions.

Alternatively, you can use the engine helper directly:

json

{"object":"/Script/AssetRegistry.Default__AssetRegistryHelpers","function":"GetAssetRegistry"}

Force-deleting assets

json

{"object":"/Script/UnrealClientProtocolEditor.Default__AssetEditorOperationLibrary","function":"ForceDeleteAssets","params":{"AssetPaths":["/Game/OldAssets/M_Unused","/Game/OldAssets/T_Unused"]}}

Fixing up redirectors

After renaming or consolidating assets, redirectors may be left behind. Use FixupReferencers to resolve them:

json

{"object":"/Script/UnrealClientProtocolEditor.Default__AssetEditorOperationLibrary","function":"FixupReferencers","params":{"AssetPaths":["/Game/Materials/M_OldName"]}}

Engine Built-in Asset Libraries

IAssetRegistry (via GetAssetRegistry)

Once you have the AssetRegistry instance, you can call these BlueprintCallable functions on it:

Asset Queries

Function	Key Params	Description
`GetAssetsByPackageName`	`PackageName`, `OutAssetData`, `bIncludeOnlyOnDiskAssets`	Get assets in a specific package
`GetAssetsByPath`	`PackagePath`, `OutAssetData`, `bRecursive`	Get assets under a content path
`GetAssetsByPaths`	`PackagePaths`, `OutAssetData`, `bRecursive`	Get assets under multiple paths
`GetAssetsByClass`	`ClassPathName`, `OutAssetData`, `bSearchSubClasses`	Get all assets of a specific class
`GetAssets`	`Filter`, `OutAssetData`	Query with an `FARFilter` (powerful filtered search)
`GetAllAssets`	`OutAssetData`, `bIncludeOnlyOnDiskAssets`	Get ALL registered assets
`GetAssetByObjectPath`	`ObjectPath`	Get single asset data by path
`HasAssets`	`PackagePath`, `bRecursive`	Check if any assets exist under a path
`GetInMemoryAssets`	`Filter`, `OutAssetData`	Query only currently loaded assets

Dependency & Reference Queries

Function	Key Params	Description
`GetDependencies`	`PackageName`, `DependencyOptions`, `OutDependencies`	Get packages this asset depends on
`GetReferencers`	`PackageName`, `ReferenceOptions`, `OutReferencers`	Get packages that reference this asset

Class Hierarchy

Function	Key Params	Description
`GetAncestorClassNames`	`ClassPathName`, `OutAncestorClassNames`	Get parent classes
`GetDerivedClassNames`	`ClassNames`, `DerivedClassNames`	Get child classes

Path & Scanning

Function	Key Params	Description
`GetAllCachedPaths`	`OutPathList`	Get all known content paths
`GetSubPaths`	`InBasePath`, `OutPathList`, `bInRecurse`	Get sub-paths under a base path
`ScanPathsSynchronous`	`InPaths`, `bForceRescan`	Force scan specific paths
`ScanFilesSynchronous`	`InFilePaths`, `bForceRescan`	Force scan specific files
`SearchAllAssets`	`bSynchronousSearch`	Trigger full asset scan
`ScanModifiedAssetFiles`	`InFilePaths`	Scan modified files
`IsLoadingAssets`	(none)	Check if scan is in progress
`WaitForCompletion`	(none)	Block until scan finishes

Filter & Sort

Function	Key Params	Description
`RunAssetsThroughFilter`	`AssetDataList`, `Filter`	Filter asset list in-place (keep matching)
`UseFilterToExcludeAssets`	`AssetDataList`, `Filter`	Filter asset list in-place (remove matching)

UAssetRegistryHelpers (Static Utilities)

CDO Path: /Script/AssetRegistry.Default__AssetRegistryHelpers

Function	Description
`GetAssetRegistry`	Get the IAssetRegistry instance
`GetDerivedClassAssetData`	Get asset data for derived classes
`SortByAssetName`	Sort FAssetData array by name
`SortByPredicate`	Sort FAssetData array by custom predicate

IAssetTools (via UAssetToolsHelpers::GetAssetTools())

Get the instance via static helper:

json

{"object":"/Script/AssetTools.Default__AssetToolsHelpers","function":"GetAssetTools"}

Then call functions on the returned instance:

Create

Function	Key Params	Description
`CreateAsset`	`AssetName`, `PackagePath`, `AssetClass`, `Factory`	Create a new asset (Factory can be null for simple types)
`CreateUniqueAssetName`	`InBasePackageName`, `InSuffix`	Generate a unique name to avoid conflicts
`DuplicateAsset`	`AssetName`, `PackagePath`, `OriginalObject`	Duplicate an existing asset

Example: Create a new material

json

{"object":"<asset_tools_instance>","function":"CreateAsset","params":{"AssetName":"M_NewMaterial","PackagePath":"/Game/Materials","AssetClass":"/Script/Engine.Material","Factory":null}}

Import & Export

Function	Key Params	Description
`ImportAssetTasks`	`ImportTasks` (array of UAssetImportTask)	Import external files as assets
`ImportAssetsAutomated`	`ImportData` (UAutomatedAssetImportData)	Automated batch import
`ExportAssets`	`AssetsToExport`, `ExportPath`	Export assets to files

Rename & Move

Function	Key Params	Description
`RenameAssets`	`AssetsAndNames` (array of FAssetRenameData)	Batch rename/move assets
`FindSoftReferencesToObject`	`TargetObject`	Find soft references to an object
`RenameReferencingSoftObjectPaths`	`PackagesToCheck`, `AssetRedirectorMap`	Update soft references after rename
`MigratePackages`	`PackageNamesToMigrate`, `DestinationPath`	Migrate packages to another project

Example: Batch rename assets

RenameAssets takes an array of FAssetRenameData structs. Each struct has Asset (the object to rename), NewPackagePath (destination directory), and NewName (new asset name):

json

{"object":"<asset_tools_instance>","function":"RenameAssets","params":{"AssetsAndNames":[{"Asset":"/Game/Materials/M_OldName.M_OldName","NewPackagePath":"/Game/Materials","NewName":"M_NewName"}]}}

Example: Find soft references

json

{"object":"<asset_tools_instance>","function":"FindSoftReferencesToObject","params":{"TargetObject":"/Game/Materials/M_Example.M_Example"}}

UEditorAssetLibrary

CDO Path: /Script/EditorScriptingUtilities.Default__EditorAssetLibrary

Query & Check

Function	Description
`DoesAssetExist(AssetPath)`	Check if an asset exists
`DoAssetsExist(AssetPaths)`	Batch existence check
`ListAssets(DirectoryPath, bRecursive, bIncludeFolder)`	List assets in directory
`ListAssetByTagValue(AssetTagName, TagValue)`	List assets matching a specific tag value
`LoadAsset(AssetPath)`	Load an asset into memory
`LoadBlueprintClass(AssetPath)`	Load a Blueprint and return its generated class
`GetTagValues(AssetPath, AssetTagName)`	Get tag values for a specific asset
`FindPackageReferencersForAsset(AssetPath, bLoadAssetsToConfirm)`	Find all packages that reference this asset

Example: Find references to an asset

json

{"object":"/Script/EditorScriptingUtilities.Default__EditorAssetLibrary","function":"FindPackageReferencersForAsset","params":{"AssetPath":"/Game/Materials/M_Example","bLoadAssetsToConfirm":false}}

Example: List assets by tag

json

{"object":"/Script/EditorScriptingUtilities.Default__EditorAssetLibrary","function":"ListAssetByTagValue","params":{"AssetTagName":"MyCustomTag","TagValue":"SomeValue"}}

Example: Load a Blueprint class

json

{"object":"/Script/EditorScriptingUtilities.Default__EditorAssetLibrary","function":"LoadBlueprintClass","params":{"AssetPath":"/Game/Blueprints/BP_MyActor"}}

Create & Modify

Function	Description
`DuplicateAsset(SourceAssetPath, DestinationAssetPath)`	Duplicate an asset by path
`DuplicateDirectory(SourceDirectoryPath, DestinationDirectoryPath)`	Duplicate an entire directory of assets
`RenameAsset(SourceAssetPath, DestinationAssetPath)`	Rename/move an asset by path
`RenameDirectory(SourceDirectoryPath, DestinationDirectoryPath)`	Rename/move an entire directory
`SaveAsset(AssetToSave, bOnlyIfIsDirty)`	Save an asset to disk
`SaveDirectory(DirectoryPath, bOnlyIfIsDirty, bRecursive)`	Save all assets in directory

Example: Duplicate a directory

json

{"object":"/Script/EditorScriptingUtilities.Default__EditorAssetLibrary","function":"DuplicateDirectory","params":{"SourceDirectoryPath":"/Game/Materials","DestinationDirectoryPath":"/Game/Materials_Backup"}}

Example: Rename a directory

json

{"object":"/Script/EditorScriptingUtilities.Default__EditorAssetLibrary","function":"RenameDirectory","params":{"SourceDirectoryPath":"/Game/OldFolder","DestinationDirectoryPath":"/Game/NewFolder"}}

Delete & Reference Replace

Function	Description
`DeleteAsset(AssetPathToDelete)`	Delete an asset by path
`ConsolidateAssets(AssetToConsolidateTo, AssetsToConsolidate)`	Replace all references to `AssetsToConsolidate` with `AssetToConsolidateTo`, then delete the consolidated assets

Example: Consolidate assets

Replace all references to M_OldMaterial with M_NewMaterial, effectively merging them:

json

{"object":"/Script/EditorScriptingUtilities.Default__EditorAssetLibrary","function":"ConsolidateAssets","params":{"AssetToConsolidateTo":"/Game/Materials/M_NewMaterial.M_NewMaterial","AssetsToConsolidate":["/Game/Materials/M_OldMaterial.M_OldMaterial"]}}

After consolidation, run FixupReferencers to clean up any leftover redirectors:

json

{"object":"/Script/UnrealClientProtocolEditor.Default__AssetEditorOperationLibrary","function":"FixupReferencers","params":{"AssetPaths":["/Game/Materials/M_OldMaterial"]}}

Directory Management

Function	Description
`MakeDirectory(DirectoryPath)`	Create a content directory
`DeleteDirectory(DirectoryPath)`	Delete a content directory
`DoesDirectoryExist(DirectoryPath)`	Check if directory exists
`DoesDirectoryHaveAssets(DirectoryPath, bRecursive)`	Check if directory contains assets

Metadata Tags

This is the start of the file. Read the full SKILL.md on GitHub.

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Source

SKILL.md in the repositoryCheckingSkills/unreal-asset-operation/SKILL.md

Popularity

Repository stars: 114
Repository forks: 14
7-day trend score: 24

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