* Create a result object with common fields. * Pattern: Result->SetStringField(TEXT("name"), Name); */

* Safely get a string field from a JSON object with a default value. * @param Obj JSON object to read from (may be null/invalid). * @param Field Nam

* Safe asset saving helper - marks package dirty, registers the asset, and * persists the owning package through the editor's save flow. * * CRITIC

* @brief Log a failure and send a standardized automation error response. * * Resolves an empty ErrorCode to "AUTOMATION_ERROR", logs a sanitized wa

* Safely get a number field from a JSON object with a default value. * @param Obj JSON object to read from (may be null/invalid). * @param Field Nam

* Normalize and validate a project-relative asset path. * * Ensures the returned path is normalized, begins with a leading '/', rejects * any path

* Sends a standardized error response with structured error details. * * Format: * { * "success": false, * "data": {}, // Empty object for

* Create a standard success response

Helper to add a Blueprint variable with a specific type

* Extract an optional string field with default value. */

* Safe compilation helper to avoid D3D12RHI viewport crashes in UE 5.7 * * Compiling blueprints can trigger Slate UI updates (progress bars, compile

* Build a standardized error response object. * @param ErrorCode Short error code (e.g., "INVALID_PARAM", "NOT_FOUND") * @param Message Huma

Load widget blueprint - robust lookup for both in-memory and on-disk assets

* Safely get a boolean field from a JSON object with a default value. * @param Obj JSON object to read from (may be null/invalid). * @param Field Na

Helper to normalize asset path

* AddBlueprintVariableChar - Add a Blueprint variable with proper category * * In anonymous namespace with "Char" suffix to avoid Unity build collis

Helper to normalize asset path with security validation

Get raw value (unknown type)

Attempt to locate and load a Blueprint by several heuristics. Returns nullptr * Locate and load a Blueprint asset from a variety of request formats an

Get string field with default value. */

* Extract an optional float/double field with default value. */

Helper to save asset through the repo's loaded-asset safe save path. These assets must persist to disk; leaving them registry-only creates large in-me

* Extract an optional boolean field with default value. */

* Helper to validate and sanitize a path, returning error response if invalid

Get FVector from JSON object field

* Throttled wrapper around McpSafeAssetSave to avoid rapid repeated save calls. * * @param Asset The asset to save * @param ThrottleSecondsOverride

Resolve a UClass by a variety of heuristics: try full path lookup, attempt to load an asset by path (UBlueprint or UClass), then fall back to scanning

Helper to get string field from JSON

Helper to add a Blueprint variable with proper category

Get current editor world

Get string field with default

* CRITICAL: Register a widget in the WidgetVariableNameToGuidMap. * * This MUST be called after creating widgets via WidgetTree->ConstructWi

* Helper: Load skeletal mesh asset from path */

* GetJsonNumberFieldNav - Extract number field from JSON with default value */

* Validates that a widget was successfully added to a blueprint. * Checks both that the widget exists in the tree AND that no engine * error

Helper to set Blueprint variable default value

* GetJsonStringFieldNav - Extract string field from JSON with default value */

* CRITICAL: Unregister a widget from the WidgetVariableNameToGuidMap. * * This MUST be called when removing widgets from the WidgetTree to p

* Load Blueprint from asset path. * Handles paths with and without .uasset suffix. * @param BlueprintPath Asset path (e.g., "/Game/BP_MyActo

* Safely add a widget to the widget tree with proper root/parent handling. * * This handles the critical case where parentSlot is not specif

* Validate and sanitize an asset name. * Removes/replaces characters that are invalid for Unreal asset names, * including SQL injection patterns. *

* Validates a console command for safety before execution. * @param command - The console command string to validate * @throws Error if the

Validate extent vector - reject negative, NaN, or Infinity values Returns true if valid, false if invalid (sets OutError on failure)

* Normalize a texture path by converting /Content to /Game and fixing slashes. */

Resolve a nested property path (e.g., "Transform.Location.X" or "MyComponent.Intensity"). Returns the final property and target object, or nullptr on

Validate volume name - reject empty, path traversal, and invalid characters Returns true if valid, false if invalid (sets OutError on failure)

Helper to save asset - UE 5.7+ Fix: Do not save immediately to avoid modal dialogs. modal progress dialogs that block automation. Instead, just mark d

Get slot name from payload - checks both "slotName" (preferred) and "widgetName" (legacy fallback) This ensures compatibility with both TS handler con

* Sends a standardized success response with a "data" envelope. * * Format: * { * "success": true, * "data": { ... }, * "warnings": [], *

Helper to get number field from JSON

Helper to create or get a dynamic mesh for operations

Get FRotator from JSON object field

Validate location vector - reject NaN or Infinity values (zero is valid) Returns true if valid, false if invalid (sets OutError on failure)