Use this skill when working with Actor and component design in Unreal Engine. Triggers on: Actor, component, BeginPlay, Tick, SpawnActor, lifecycle, CreateDefaultSubobject, composition, EndPlay, PostInitializeComponents, UActorComponent, USceneComponent, UINTERFACE, attachment, spawn, interface. See references/actor-lifecycle.md and references/component-types.md for detailed tables.
Use this skill when implementing AI, AIController, behavior tree, blackboard, AI perception, NavMesh, EQS, navigation, pathfinding, State Tree, or Smart Objects in Unreal Engine. See references/behavior-tree-patterns.md for BT patterns and references/eqs-reference.md for EQS configuration. For AI ability use, see ue-gameplay-abilities.
Use this skill when working with Unreal Engine animation: AnimInstance, montage playback, blend space, state machine, anim notify, IK, AnimGraph, skeletal mesh, or linked anim graphs. See references/anim-notify-reference.md for notify patterns and references/locomotion-setup.md for locomotion setup. For montage integration with GAS, see ue-gameplay-abilities.
Use this skill when working with Unreal Engine async operations, threading, parallel execution, or concurrency. Also use when the user mentions 'FRunnable', 'FAsyncTask', 'TaskGraph', 'UE::Tasks', 'ParallelFor', 'TFuture', 'TPromise', 'Async()', 'thread safety', 'FCriticalSection', 'FRWLock', 'background thread', 'game thread dispatch', or 'thread pool'. For networking async (RPCs, replication), see ue-networking-replication. For asset streaming, see ue-data-assets-tables.
Use this skill when working with audio, sound, music, UAudioComponent, PlaySoundAtLocation, SoundCue, MetaSound, attenuation, submix, concurrency, SFX, or spatial audio in Unreal Engine. See references/audio-setup-patterns.md for music system and ambient soundscape architectures. For VFX audio synchronization, see ue-niagara-effects.
Use this skill when working with character movement, CharacterMovementComponent, CMC, movement modes, walking, falling, swimming, flying, custom movement, network prediction, FSavedMove, root motion, floor detection, step-up, or character physics. Also use for 'PhysWalking', 'PhysCustom', 'LaunchCharacter', 'WalkableFloor', or 'movement replication'. See references/ for CMC extension patterns and movement pipeline details.
Use when writing Unreal Engine C++ code involving UPROPERTY, UFUNCTION, UCLASS, TArray, TMap, delegates, FString, garbage collection, or smart pointers. Also use when the user asks about "UE C++", USTRUCT, UENUM, FName, FText, TObjectPtr, TWeakObjectPtr, UObject lifetime, UE_LOG, or UE subsystems. For module build configuration, see ue-module-build-system. For Actor/Component architecture, see ue-actor-component-architecture.
Use when working with DataAsset, DataTable, soft reference, hard reference, TSoftObjectPtr, async loading, Asset Manager, StreamableManager, or game data structures in Unreal Engine. See references/asset-loading-patterns.md for async loading and StreamableManager patterns. See references/data-driven-design.md for data-driven gameplay architecture. For serialization, see ue-serialization-savegames. For C++ foundations, see ue-cpp-foundations.