UE Character Movement

Target engine: UE 5.8. APIs below are verified against the 5.8 headers; older forms are listed under "Deprecated — do not use".

This skill covers UCharacterMovementComponent (CMC) and ACharacter: the movement-mode pipeline, floor detection and step-up, custom movement modes, client-side prediction and correction, root motion, custom gravity, and the 5.8 movement-base rework. Everything here ships in the Engine module — no plugin and no extra Build.cs entry beyond "Engine". Public headers: GameFramework/CharacterMovementComponent.h (which already pulls in GameFramework/RootMotionSource.h, GameFramework/CharacterMovementReplication.h, CharacterMovementComponentAsync.h and Interfaces/MovementBaseInterface.h), GameFramework/Character.h.

Context

Read .agents/ue-project-context.md if it exists (module names, conventions, enabled plugins, GAS/networking setup). Do not stop if it is missing.

Identify the area from the request and the codebase. Ask only when two plausible readings would produce different code.