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Agent skill

Unreal Export

by arjun988 in arjun988/blender-skills

Unreal Engine-specific Blender export for FBX scale, LODs, UCX collision, sockets, materials, and skeletal mesh workflows via MCP.

MITAuto-check passedGame Development

Install Unreal Export

skills CLI
$ npx skills add arjun988/blender-skills --skill unreal-export -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install arjun988/blender-skills unreal-export --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/arjun988/blender-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/unreal-export .claude/skills/unreal-export && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
unreal-export
GitHub stars
275
Token cost
~612 tokens
SKILL.md length
218 words
Files
3 (incl. references)
Skills in repo
37
Repo updated
First seen
Licence
MIT

At a glance

Unreal Engine-specific Blender export for FBX scale, LODs, UCX collision, sockets, materials, and skeletal mesh workflows via MCP.

  • Works in 4 steps: asset-optimization PASS → lod-pipeline for LOD0–N → collision-proxy for UCX meshes → …
  • Tasks that involve Game development
  • SKILL.md covers When to Use, Pre-Flight, Scale Note and FBX Defaults (Static), plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Unreal Export is an agent skill from arjun988/blender-skills. Unreal Engine-specific Blender export for FBX scale, LODs, UCX collision, sockets, materials, and skeletal mesh workflows via MCP.

Its SKILL.md is about 610 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/ucx-naming.md` and `references/unreal-checklist.md`).

It sits in Game Development, covering Game development. It works with Blender, Model Context Protocol and Unreal Engine. The repository describes itself as: 94 specialist Blender skills for Cursor, Claude Code, Kiro & Codex - MCP-powered production pipeline from blockout to engine export. The licence is MIT.

When your agent uses it

  • Tasks that involve Game development

Example prompts

  • “/unreal-export”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. asset-optimization PASS
  2. lod-pipeline for LOD0–N
  3. collision-proxy for UCX meshes
  4. Apply scale; pivots at intended UE origin

What it can do on your machine

Read from SKILL.md and the folder at commit 8f778d2. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Unreal Export loads about 612 tokens when it runs, and up to ~703 if it reads all its reference files. Until then it costs about 36 tokens; SKILL.md has 218 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~36
When it runs · the whole SKILL.md, loaded when a task matches
~612
With references · SKILL.md plus every file in references/, read only if the agent opens them
~703

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from arjun988/blender-skills at commit 8f778d2, republished under its MIT licence (© arjun988). 218 words, ~612 tokens.

Download SKILL.mdSave it as .claude/skills/unreal-export/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
unreal-export
description
Unreal Engine-specific Blender export for FBX scale, LODs, UCX collision, sockets, materials, and skeletal mesh workflows via MCP.
license
MIT
metadata.author
https://github.com/arjun988
metadata.version
1.0.0
metadata.domain
blender
metadata.role
specialist
metadata.triggers
Unreal, UE5, UE4, Unreal export, UCX, Unreal LOD, skeletal mesh, Unreal FBX, socket
metadata.related-skills
export-pipeline, lod-pipeline, collision-proxy, asset-optimization, materials

Unreal Export

UE-ready FBX. Correct centimeter scale awareness. UCX collision. LOD and socket naming.

When to Use

  • Static mesh or skeletal mesh to Unreal
  • UCX/UCLX collision export
  • LOD chain import
  • Socket / pivot setup for gameplay

Pre-Flight

  1. asset-optimization PASS
  2. lod-pipeline for LOD0–N
  3. collision-proxy for UCX meshes
  4. Apply scale; pivots at intended UE origin

Scale Note

Unreal is centimeter-based. Common approaches:

  • Model in meters in Blender, export FBX with unit conversion / 0.01 awareness per project pipeline
  • Or work to project-documented scale and verify with a 100cm reference

Always measure a known edge after import.

FBX Defaults (Static)

Selected Objects
Apply Scalings: FBX All
Forward: -Z Forward
Up: Y Up
Mesh: ON
Smoothing: Face

Naming for UE

TypePattern
Static meshSM_Name
SkeletalSK_Name
SkeletonSKEL_Name
LODSM_Name_LOD0 …
CollisionUCX_SM_Name_01
Socket emptySOCKET_Name

Collision

  • Prefer convex UCX pieces over complex mesh colliders
  • Multiple UCX meshes supported
  • See collision-proxy

Skeletal

  • UE mannequin-oriented proportions when required
  • Root bone; no leftover Blender deform leftovers
  • Export morph targets if needed (shape keys)

Verify in Unreal

  • Scale (door ~200cm, character ~180cm)
  • Collision wireframe
  • LODs auto-detected
  • Materials / texture sampling
  • Sockets transform

Constraints

MUST DO
  • Confirm scale with known-dimension test
  • Prefix collision with UCX_
  • Validate LODs and materials after import
MUST NOT DO
  • Export without collision plan for physics actors
  • Mix unit systems undocumented

Reference Guide

TopicReferenceLoad When
Unreal Checklistreferences/unreal-checklist.mdWhen needed
Ucx Namingreferences/ucx-naming.mdWhen needed

© arjun988, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in .claude/skills/unreal-export of arjun988/blender-skills.

  • SKILL.md
  • references/ucx-naming.md
  • references/unreal-checklist.md

Open the folder on GitHubat commit 8f778d2

Compare with similar skills

Unreal Export next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Unreal Export compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Unreal Export this skillarjun988/blender-skills275—~612Automated safety check: PassMIT
Unreal Blueprint Authoringflopperam/unreal-engine-mcp1.1k—~1.6kAutomated safety check: PassNone
UMG Material MCPwinyunq/UnrealMotionGraphicsMCP208—~913Automated safety check: PassMIT
Unreal Engine MCPEpicGames/unreal-engine-skills-for-claude-code-plugin327—~1.8kAutomated safety check: PassMIT
Unreal Scene Buildingflopperam/unreal-engine-mcp1.1k—~1.4kAutomated safety check: PassNone
Unreal Engine MCP Overviewflopperam/unreal-engine-mcp1.1k—~1.7kAutomated safety check: PassNone

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Works with

Categories

Questions about Unreal Export

What does Unreal Export do?

Unreal Engine-specific Blender export for FBX scale, LODs, UCX collision, sockets, materials, and skeletal mesh workflows via MCP. Unreal Export is an agent skill from arjun988/blender-skills. Unreal Engine-specific Blender export for FBX scale, LODs, UCX collision, sockets, materials, and skeletal mesh workflows via MCP.

When should I use Unreal Export?

Unreal Export fits situations like: tasks that involve Game development.

How do I install Unreal Export in Claude Code?

Run `npx skills add arjun988/blender-skills --skill unreal-export -a claude-code`. Or copy the skill folder (.claude/skills/unreal-export in arjun988/blender-skills) into .claude/skills/unreal-export in your project. Claude Code loads it when a task matches its description.

How do I install Unreal Export in Codex?

Run `npx skills add arjun988/blender-skills --skill unreal-export -a codex`. Or copy the skill folder (.claude/skills/unreal-export in arjun988/blender-skills) into .agents/skills/unreal-export in your project. Codex loads it when a task matches its description.

Can I use Unreal Export in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add arjun988/blender-skills --skill unreal-export -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/unreal-export, .gemini/skills/unreal-export, .github/skills/unreal-export and .opencode/skills/unreal-export in your project.

What does Unreal Export need to run?

SKILL.md names no scripts, command-line tools or credentials: Unreal Export is instructions for the agent only.

Does Unreal Export access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Unreal Export safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Unreal Export use?

Unreal Export is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Unreal Export use?

About 612 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 91 tokens, read only when the agent opens those files.

What are the alternatives to Unreal Export?

Skills that share tags, products or a category with Unreal Export: Unreal Blueprint Authoring (flopperam/unreal-engine-mcp, 1.1k stars), UMG Material MCP (winyunq/UnrealMotionGraphicsMCP, 208 stars), Unreal Engine MCP (EpicGames/unreal-engine-skills-for-claude-code-plugin, 327 stars) and Unreal Scene Building (flopperam/unreal-engine-mcp, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Unreal Export?

arjun988 (a GitHub user) maintains it in arjun988/blender-skills, which has 275 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on July 10, 2026.

Source: arjun988/blender-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.