What is 19.-expert-tools-unreal-engine?

A set of specialist coding agents for Unreal Engine 5.8, Epic Games' tool for building 3D games and interactive worlds. It works through Python scripts, background jobs, and Epic's Unreal MCP server on macOS.

It helps with world building, materials, lighting, rendering, gameplay, animation, cinematics, visual effects, pipeline automation, and performance work.

It brings related Unreal tasks into one set of workflows instead of requiring separate guidance for each area. It has only been tested offline and has not yet been run inside the engine.

19.-expert-tools-unreal-engine — Plugin by scenario-labs/skills

About the project

Scenario Agent Skills is a collection of instructions that teaches AI coding agents to create images, video, audio, textures, skyboxes, and 3D assets through the Scenario MCP server, an interface to Scenario’s generation tools and custom-trained models. It serves game, entertainment, marketing, and other creative work, and also includes workflows for digital content creation software and game engines. The catalogue entries are these skills, along with plugins, commands, agents, instructions, settings, and hooks for using Scenario or driving supported creative applications.

scenario-labs/skills · 1,034 stars · on GitHub · skills.sh

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.

Clone the repo

git clone --depth 1 https://github.com/scenario-labs/skills

Made for: Claude Code.

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/plugins/scenario-labs/skills/19.-expert-tools-unreal-engine/github.svg)](https://agentmods.dev/plugins/scenario-labs/skills/19.-expert-tools-unreal-engine)

Your own site

<a href="https://agentmods.dev/plugins/scenario-labs/skills/19.-expert-tools-unreal-engine"><img src="https://agentmods.dev/badge/plugins/scenario-labs/skills/19.-expert-tools-unreal-engine/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/plugins/scenario-labs/skills/19.-expert-tools-unreal-engine"><img src="https://agentmods.dev/badge/plugins/scenario-labs/skills/19.-expert-tools-unreal-engine.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 10 skills cost 1,212 tokens a session between them.

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

Origin original No closer match found in the catalogue.

Security

Grade A, and why

19.-expert-tools-unreal-engine 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 18d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

20.-expert-tools-unreal-engine — 88% identical, 2 lines differ

.claude-plugin/marketplace.json#19.-expert-tools-unreal-engine · 18 lines

What it actually says

{
  "name": "19.-expert-tools-unreal-engine",
  "description": "Game engine. A lead and nine specialists that drive Unreal Engine 5.8 on macOS through Editor Python, headless jobs, and Epic's Unreal MCP server: world building, materials, lighting and rendering, gameplay, animation, cinematics, VFX, pipeline automation, performance.",
  "source": "./",
  "strict": false,
  "skills": [
    "./skills/game-engines/unreal/scenario-unreal-expert",
    "./skills/game-engines/unreal/scenario-unreal-animation",
    "./skills/game-engines/unreal/scenario-unreal-cinematics",
    "./skills/game-engines/unreal/scenario-unreal-gameplay",
    "./skills/game-engines/unreal/scenario-unreal-lighting-rendering",
    "./skills/game-engines/unreal/scenario-unreal-materials",
    "./skills/game-engines/unreal/scenario-unreal-performance",
    "./skills/game-engines/unreal/scenario-unreal-pipeline-automation",
    "./skills/game-engines/unreal/scenario-unreal-vfx",
    "./skills/game-engines/unreal/scenario-unreal-world-building"
  ]
}

Contents

What it installs

The manifest is a name and a version. 10 skills travel with it, and installing the plugin installs all of them — 1,212 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Files

What ships with it

1 file beside marketplace.json#19.-expert-tools-unreal-engine 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.

marketplace.json 14 KB

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.

18d ago Changed 9f976cc37173
20d ago First seen · 18 lines scan A 85f27b890e9e

Subscribe to this mod's changes

19.-expert-tools-unreal-engine is a plugin published in the GitHub repository scenario-labs/skills (1,034 stars, last pushed today), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-09-27.

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