AgentCraft — AI Agent for the Unreal Editor (BYOK, Multi-Provider)

AgentCraft integrates an AI agent directly into the Unreal Editor. Describe the intended change in natural language — for example, "create a worn cyberpunk metal material" or "a pickup coin that spins and disappears on overlap" — and AgentCraft executes the request through native editor tools, displays each tool invocation as it runs, and reads the resulting assets back from the asset registry so that every change can be verified.

Scope and evidence

• Clearly defined support boundaries. The composer panel organizes capability into domain tabs. Version 1 ships three fully supported domains — Materials, Gameplay (Blueprints), and Lighting — each backed by an automated test suite that passes five consecutive full runs before release. Roadmap domains (World/PCG, Cinematics, Characters) are visible in the interface but explicitly labelled as experimental; they are functional but have not yet passed the v1 release gate.

• Verified results. Tool calls do not simply report success. AgentCraft reads created assets back — components, parameters, asset paths — and presents this evidence in the conversation.

• Confirmation and dry-run. Destructive operations request confirmation on a per-call basis. This confirmation can be disabled once a workflow is trusted. Standard source-control practice is recommended for reverting changes.

Provider flexibility (bring your own key)

AgentCraft does not require a subscription. Configure a supported provider with your own API key; usage is billed directly by the provider.

• HTTP providers: DeepSeek, Qwen (DashScope), GLM (BigModel), and OpenRouter (which provides access to Claude, GPT, Gemini, Llama, and other models through a single key).

• A per-request cost estimate is displayed before each request is sent.

Built-in MCP server

AgentCraft includes an MCP server (HTTP, specification 2025-11-25). External MCP clients — Claude Desktop, VS Code, MCP Inspector, and others — can connect to the editor and access the complete tool surface through a single local endpoint. A companion npm bridge (agentcraft-mcp-bridge) is available for stdio-only clients.

Engineering standards

• Pure Slate user interface; no embedded web browser and no CEF dependency.

• More than 480 automated tests. The supported tool set additionally gates on end-to-end transport tests and five consecutive full-suite runs.

• Bilingual user interface (English / Simplified Chinese).

Required engine plugins (dependencies)

AgentCraft enables the following engine plugins on install; all ship with Unreal Engine and require no separate download: Editor Scripting Utilities, Enhanced Input, Niagara, IK Rig, Control Rig, Python Editor Script Plugin, StateTree, PCG, Pose Search, Gameplay Abilities, MetaSound, Environment Query Editor, Struct Utils, Audio Capture, Smart Objects, Geometry Processing, Geometry Script, and Modeling Tools Editor Mode.