This MCP server enables AI agents (Claude Code/Codex) to control a running DX12 Engine editor for game development through natural language or programmatic tool calls.

Scene & Entity Management Create, delete, duplicate, rename, parent, and select entities; open, save, create, and validate scenes; spawn prefabs; search entities by name, component type, tags, or spatial bounds.

Transform & Component Editing Set position/rotation/scale; add/remove/modify components (lights, cameras, rigid bodies, colliders, particles, audio, sprites, triggers, network, etc.); inspect component schemas before editing.

Material & Appearance Apply PBR materials (metallic, roughness, base color, UV scale), assign textures, create and assign custom HLSL shaders, configure post-processing (~25+ effects: bloom, vignette, color grading, outlines, glitch, etc.), adjust SSAO, PCSS shadows, and DXR ray-traced shadows/AO.

Lighting & Sky Manage directional/point/spot lights and sun settings; set skybox, IBL environment maps, and lighting presets.

Lua Scripting Create, attach, read, and modify Lua script components; set individual Lua properties at runtime; execute arbitrary Lua code in the live engine context; browse the Lua API reference.

Animation Play skeletal animation clips with crossfade, query animation states and available clips, set FSM parameters to trigger state machine transitions.

Physics & Interaction Perform raycasts and overlap queries (box/sphere); read entity physics state (velocity, grounded status); simulate key presses (down/up/single) and step through frames for gameplay testing.

Camera & Visualization Focus editor camera on any entity; take screenshots (scene view, game view, focused, post-processed); use render debug modes (normals, depth, AO, shadow cascades, etc.); project world coordinates to screen space; compare screenshots photometrically against references.

Terrain & Sculpting Create, generate, sculpt, and erode terrain; paint texture layers by brush, slope, or elevation; create and edit sculpt meshes.

Asset Operations Import, list, move, delete, and preview assets (models, textures, scripts, audio, scenes, prefabs, shaders); spawn models/prefabs from asset paths.

Multiplayer Testing Configure network roles (host/client/offline), launch a local test client, and monitor network status (RTT, bandwidth, connected players, synced entities).

Build & Validate Build the game project to an output folder; validate scene integrity (missing references, broken paths).

Diagnostics & Utilities Ping for connectivity; diagnose shaders, textures, lights, terrain, Lua, and DXR in one call; describe parameter schemas for any tool; undo/redo edits; batch multiple operations in a single request to reduce round-trips.

1. Click on "Install Server".

2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.

3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@DX12 Engine MCP Server create a new cube entity"

That's it! The server will respond to your query, and you can continue using it as needed.

Here is a step-by-step guide with screenshots.