# build-rigged-game-assets

A skill that walks a rigged character or monster from source model to gameplay: skeleton, animation library, sockets, equipment, catalog card.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 1200 installs · ★ 7001
- Author: MengTo
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/MengTo/Skills/tree/HEAD/agent-skills/game-development/build-rigged-game-assets/SKILL.md
- Updated: 2026-10-25
- HTML: https://affpapa.org/en/nevibecode/skills/build-rigged-game-assets

## What it does

The skill defines one truthful actor package: main model, skeleton, clip library, attachment sockets, collision contracts, and separately addressable equipment. For a character the body is the persistent base layer, and swords, shields, helmets and armor stay as their own assets. A monster is a single combat actor with no wardrobe — only weapons, breakable parts, projectiles and props get split out.

Work starts with the contract. Inspect the repository first: source artifact, runtime loader, skeleton conventions, action API, collision system, catalog schema, budgets and tests. Then copy the matching manifest template from `assets/` — `character-asset-manifest.template.json` or `monster-asset-manifest.template.json` — and fill it in next to the implementation. Validation runs through `scripts/validate_asset_manifest.py <manifest>`; add `--root <repo>` for shipped-file checks and `--require-verified` only after every acceptance check has actually passed.

Some rules are easy to trip on. Ground the model from feet or authored contact sockets, never from a weapon tip, cloth tail or shadow. Keep at most four normalized skin influences per vertex unless the engine contract says otherwise. Prefer animation-only GLBs for separate clips so they don't smuggle duplicate meshes or textures. And the catalog inspector has to load the same runtime model and action API that gameplay claims — a screenshot or a separate look-dev mesh is not runtime proof.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add MengTo/Skills --skill build-rigged-game-assets -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/build-rigged-game-assets/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/build-rigged-game-assets/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add MengTo/Skills --skill build-rigged-game-assets -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/build-rigged-game-assets/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add MengTo/Skills --skill build-rigged-game-assets -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/build-rigged-game-assets/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install MengTo/Skills build-rigged-game-assets
```

2. **Manually: put the files in place**
- File: `.github/skills/build-rigged-game-assets/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add MengTo/Skills --skill build-rigged-game-assets -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/MengTo/Skills --path agent-skills/game-development/build-rigged-game-assets
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/build-rigged-game-assets/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add MengTo/Skills --skill build-rigged-game-assets -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/MengTo/Skills/tree/HEAD/agent-skills/game-development/build-rigged-game-assets/SKILL.md

## When to use it
- build a character rig without breaking engine skeleton conventions
- split equipment into slots instead of fusing it into the body
- add idle, walk, run, attack, hit, dodge and death clips
- bind weapons and VFX to named sockets
- validate an asset manifest before the runtime build

## Example prompts
- build the rigged character package from the character-asset-manifest template and validate it
- separate the sword and helmet into their own assets and bind them to the main hand and headgear sockets
- give the monster idle, locomotion, primary-attack, hit and death roles with telegraph windows

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 7384130868efbba0.

BEGIN THIRD-PARTY FILE 7384130868efbba0
```text
---
name: build-rigged-game-assets
description: Create, integrate, or audit production-ready rigged 3D characters and monsters with a main model, skeleton, animation library, sockets, collision contracts, separate character equipment, optimized runtime files, catalog media, and an interactive moveset inspector. Use when generating or importing FBX/GLB game actors; defining character-versus-monster asset requirements; separating swords, shields, helmets, armor, or stowed gear; adding idle, walk, run, attack, hit, dodge, block, cast, or death clips; wiring an asset into gameplay; or adding action and equipment controls plus deterministic tests to a game asset catalog.
---

# Build Rigged Game Assets

Build one truthful actor package from source reference through gameplay and catalog proof.

## Establish the contract first

Inspect repository truth before generating or editing files:

- Locate the source image/model, runtime loader, skeleton conventions, action API, equipment system, collision system, catalog schema, review routes, budgets, and tests.
- Classify the actor as `character` or `monster`.
- Classify delivery as `catalog-only`, `review-only`, or `runtime`. Do not call an asset implemented until gameplay loads it.
- Preserve immutable source artifacts separately from optimized runtime files.
- Decide target formats before using a credit-bearing generator.

Copy the matching template from `assets/`, fill it in, and keep it beside the implementation or in the project’s asset metadata location:

- `character-asset-manifest.template.json`
- `monster-asset-manifest.template.json`

Run `scripts/validate_asset_manifest.py <manifest>` before building. Re-run with `--root <repo>` for shipped-file checks and `--require-verified` only after every acceptance check has actually passed.
```
END THIRD-PARTY FILE 7384130868efbba0

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