// MCP TOOL REFERENCE

UNREAL ENGINE TOOLS

23 tools from the Unreal Engine MCP Server, categorised by risk level.

View the Unreal Engine policy → Token cost: 37,747 tokens →

// ALL 23 UNREAL ENGINE TOOLS

READ 1 tools

Read inspect Inspect any UObject: read/write properties, list components, export snapshots, and query class info. Action...

WRITE 17 tools

Write manage_ai Build AI systems: AI controllers, Behavior Trees, Blackboards, EQS, perception, State Trees, Smart Objects,... Write manage_asset Create/import/manage assets, material graphs, material instances, procedural textures, render targets, and ... Write manage_audio Play/stop sounds, add audio components, configure mixes, attenuation, spatial audio, and author Sound Cues/... Write manage_blueprint Create Blueprints and UMG widgets, add SCS/UI components, set defaults, and manipulate Blueprint graphs, bi... Write manage_character Create Character Blueprints with movement, locomotion, and animation state machines. Required: action. Sele... Write manage_combat Create weapons with hitscan/projectile firing, configure damage types, hitboxes, reload, and melee combat (... Write manage_effect Niagara particle systems, VFX, debug shapes, and GPU simulations. Create systems, emitters, modules, and co... Write manage_gas Create Gameplay Abilities, Effects, Attribute Sets, and Gameplay Cues for ability systems. Required: action... Write manage_geometry Create procedural meshes using Geometry Script: booleans, deformers, UVs, collision, and LOD generation. Re... Write manage_interaction Create interactive objects: doors, switches, chests, levers. Set up destructible meshes and trigger volumes... Write manage_inventory Create item data assets, inventory components, world pickups, loot tables, and crafting recipes. Required: ... Write manage_level Load/save levels, configure streaming, and build lighting. Required: action. Select one enum value, then pr... Write manage_level_structure Structure worlds: levels, sublevels, World Partition, streaming, data layers, HLOD, level instances, trigge... Write manage_networking Configure multiplayer and player flow: replication, RPCs, authority/relevancy, network prediction, sessions... Write manage_pcg Create, edit, execute, and configure PCG graphs: graph assets, input/sampler/filter/spawner nodes, pin conn... Write manage_sequence Edit Level Sequences: add tracks, bind actors, set keyframes, control playback, and record camera. Required... Write manage_tools Dynamic MCP tool management. List canonical tools, view category counts, and enable/disable tools or catego...

EXECUTE 5 tools

Execute animation_physics Author animation and physics assets: Animation Blueprints, blend spaces, montages, Control Rig/IK, skeleton... Execute build_environment Build environments: landscapes, foliage, procedural terrain/biomes, lighting setups, spline roads/rivers/fe... Execute control_actor Spawn actors, set transforms, enable physics, add components, manage tags, and attach actors. Required: act... Execute control_editor Start/stop PIE, control viewport camera, run console commands, take screenshots, simulate input. Required: ... Execute system_control Control the project runtime: profiling, benchmarks, scalability/LOD/Nanite settings, CVars, console command...

// FAQ

How many tools does the Unreal Engine MCP server have? +

The Unreal Engine MCP server exposes 23 tools across 3 categories: Read, Write, Execute.

How do I enforce policies on Unreal Engine tools? +

Route the Unreal Engine server through the PolicyLayer gateway. Define allow, deny, or approval rules per tool in the dashboard — they are enforced on every call before it reaches the server.

What risk categories do Unreal Engine tools fall into? +

Unreal Engine tools are categorised as Read (1), Write (17), Execute (5). Each category has a recommended default policy.

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