# UE Agent Harness

> Use this tool when you need to integrate Large Language Models (LLMs) with the Unreal Engine 5.8 editor, enabling seamless context assembly and state caching for efficient workflow management. It acts as a middleware, serving as both an MCP Server for LLMs and an MCP Client for the UE MCP Server, streamlining tasks and ensuring safety guards. Ideal for applications requiring visual verification, long-task memory compression, and robust workflow management.

Canonical page: https://skillsregistry.net/skills/mdx-0003-ue-mcp-harness  
JSON: https://api.skillsregistry.net/v1/skills/mdx-0003-ue-mcp-harness

## Description

Acts as a middleware for the Unreal Engine 5.8 editor, serving as an MCP Server for LLMs (Claude/GPT) and an MCP Client for the UE MCP Server, enabling context assembly, state caching, visual verification, long-task memory compression, and safety guards.

## Trust

- **Trust score (0–1):** 0.04
- **Verification tier:** scanned
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/dgymbjt7ep)
- **Repository:** <https://github.com/MDX-0003/UE-MCP-Harness>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "mdx-0003-ue-mcp-harness"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/mdx-0003-ue-mcp-harness` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/mdx-0003-ue-mcp-harness/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt