A connection between a coding agent and a live Unreal Engine editor, the tool used to build 3D games and interactive scenes. It lets the agent inspect and change project and editor state through available tools.

Use it to create, move, duplicate, or inspect objects in a level, and to work with blueprints, materials, effects, animations, gameplay systems, tests, and live code updates.

It removes the need to describe editor actions manually when working on an Unreal project and helps the agent work with the current scene and project state.

unreal-mcp — Skill for Claude Code by EpicGames

About the project

Unreal Engine Skills for Claude Code is a plugin that lets Claude Code control the Unreal Editor through the Model Context Protocol, a standard way for AI clients to use external tools. It is for developers working on Unreal Engine projects who want an agent to operate editor features such as actors, blueprints, materials, testing, and animation systems. The catalogue entries are the plugin's skills and startup hook for providing Unreal-specific workflows and context.

EpicGames/unreal-engine-skills-for-claude-code-plugin · 1,904 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add EpicGames/unreal-engine-skills-for-claude-code-plugin --skill unreal-mcp

Clone the repo

git clone --depth 1 https://github.com/EpicGames/unreal-engine-skills-for-claude-code-plugin

Made for: Claude Code.

Or install unreal-engine-skills-for-claude-code, the plugin that ships this one along with the rest of its 3 skills, 1 hook.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/epicgames/unreal-engine-skills-for-claude-code-plugin/unreal-mcp/github.svg)](https://agentmods.dev/skills/epicgames/unreal-engine-skills-for-claude-code-plugin/unreal-mcp)

Your own site

<a href="https://agentmods.dev/skills/epicgames/unreal-engine-skills-for-claude-code-plugin/unreal-mcp"><img src="https://agentmods.dev/badge/skills/epicgames/unreal-engine-skills-for-claude-code-plugin/unreal-mcp/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/epicgames/unreal-engine-skills-for-claude-code-plugin/unreal-mcp"><img src="https://agentmods.dev/badge/skills/epicgames/unreal-engine-skills-for-claude-code-plugin/unreal-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 266 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,531 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00266	$0.01531
Opus 5.5	$0.00106	$0.00612
Sonnet 5.5	$0.00053	$0.00306
Haiku 4.5	$0.00027	$0.00153

Measured 1mo ago against content hash 7ef8b991a82f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

unreal-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/unreal-mcp/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Unreal MCP

You are wired into a live Unreal Editor through the unreal-mcp MCP server. The server exposes hundreds of tools across 30+ toolsets (actors, blueprints, materials, Niagara, Sequencer, Control Rigs, GAS, automation tests, Live Coding, and more) registered through Unreal's ToolsetRegistry. Use it to inspect and mutate live editor state instead of telling the user to do it manually.

You don't need to memorize tool names. The flow below has you discover them on demand.

The connection can appear as unreal-mcp-proxy when the engine's optional proxy is installed. Use that connection for Unreal tools. The proxy keeps Unreal's native tool definitions; it does not introduce replacement discovery or dispatch tools. See references/setup.md for installation.

First step every time: discover the tool you need, then dispatch it via `call_tool`

Tool search is on by default, so the MCP server advertises only three meta-tools for the whole session: list_toolsets, describe_toolset, and call_tool. Tool names like BlueprintTools.create or SequencerTools.create_level_sequence are not in tools/list. They are dispatched server-side through call_tool and never registered as native MCP tools. This is deliberate. It keeps your context window small and the prompt cache warm.

When you start work:

Call list_toolsets to see what's registered, then describe_toolset on the candidate(s) to read their tool schemas. If you already know which toolset you need (the user said "make a Blueprint" → the Blueprint toolset), skip the listing and go straight to describe_toolset to confirm the available tools and their signatures.
Invoke the tool with call_tool: pass toolset_name, tool_name, and an arguments object matching the schema you just read. The result comes back on the same turn. No extra round-trip needed.
Top-level dispatch (omitting toolset_name) is reserved for tools registered directly on the MCP server and is rejected for call_tool itself.

Read the full file on GitHub · 57 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago Changed 7ef8b991a82f
1mo ago Changed · +2 lines cd545f71afd2
2mo ago First seen · 55 lines · 266 tokens per session scan A 65ab93bc2501

Subscribe to this mod's changes

unreal-mcp is a skill published in the GitHub repository EpicGames/unreal-engine-skills-for-claude-code-plugin (1,904 stars, last pushed 10d ago), licensed MIT. It adds 266 tokens to every session and 1,531 once invoked, about $0.0011 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Game development

unreal-mcp next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
unreal-mcpEpicGames/unreal-engine-skills-for-claude-code-plugin	Skill	1.9k	10d ago	MIT	A	266	Claude Code
playtest-reportDonchitos/Claude-Code-Game-Studios	Skill	36k	18d ago	MIT	A	20	Claude Code
godot-signals-groupsgamedev-skills/awesome-gamedev-agent-skills	Skill	6.9k	9d ago	Apache-2.0	A	95	Claude Code
scenario-unreal-gameplayscenario-labs/skills	Skill	3.2k	yesterday	MIT	A	121	Claude Code
motionOpenDCAI/GameFactory-3A	Skill	1.0k	8d ago	Apache-2.0	A	0	Claude Code, Codex
unity-addressablesBesty0728/Unity-Skills	Skill	1.9k	yesterday	MIT	A	25	Claude Code, Codex
unity-manual-componentBesty0728/Unity-Skills	Skill	1.9k	yesterday	MIT	A	36	Claude Code, Codex