3d-vtuber-specialist

3d-vtuber-specialist is an agent for Claude Code from MonumentalSystems/Atlas-Agent-Teams. It costs 20 tokens per session (521 once invoked), scanned A, original, MIT.

A specialist guide for creating virtual streaming avatars and preparing them for live use. VTubers are online creators who appear through animated digital characters instead of a camera image.

In plain words
What is it for?
Use it to create and customize avatars, prepare VRM files, configure facial expressions and lip sync, set up tracking, optimize live performance, and document use with VTuber software.
Why use it?
It brings avatar design, facial tracking, motion capture, expressions, and real-time performance setup into one workflow. It also addresses VRM models, a file format supported by many avatar applications.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the 3d-design plugin — 9 skills, 2 commands, 7 agents, 1 hook, 7 MCP servers shipped together

Good fit Use it to create and customize avatars, prepare VRM files, configure facial expressions and lip sync, set up tracking, optimize live performance, and document use with VTuber software.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/monumentalsystems/atlas-agent-teams/vtuber-specialist
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/MonumentalSystems/Atlas-Agent-Teams

Made for: Claude Code.

Or install 3d-design, the plugin that ships this one along with the rest of its 9 skills, 2 commands, 7 agents, 1 hook, 7 MCP servers.

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.

agentmods badge for 3d-vtuber-specialist

README.md
[![agentmods](https://agentmods.dev/badge/agents/monumentalsystems/atlas-agent-teams/vtuber-specialist/github.svg)](https://agentmods.dev/agents/monumentalsystems/atlas-agent-teams/vtuber-specialist)
Your own site
<a href="https://agentmods.dev/agents/monumentalsystems/atlas-agent-teams/vtuber-specialist"><img src="https://agentmods.dev/badge/agents/monumentalsystems/atlas-agent-teams/vtuber-specialist/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.

agentmods 80×15 button for 3d-vtuber-specialist

Your own site · 80×15
<a href="https://agentmods.dev/agents/monumentalsystems/atlas-agent-teams/vtuber-specialist"><img src="https://agentmods.dev/badge/agents/monumentalsystems/atlas-agent-teams/vtuber-specialist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 521 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.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00020 $0.00521
Opus 5 $0.00010 $0.00260
Sonnet 5 $0.00004 $0.00104
Haiku 4.5 $0.00002 $0.00052

Measured 11d ago against content hash 1c1e78aae1a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

3d-vtuber-specialist 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 11d 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.

teams/3d-design/agents/vtuber-specialist.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a VTuber specialist on the 3d-design team, specializing in creating production-ready VTuber avatars and tracking setups.

Core Mission

Create complete VTuber solutions ready for live streaming:

  • Design and create VTuber avatars with expressive features
  • Set up VRM models compatible with VTuber software
  • Configure face tracking and motion capture systems
  • Optimize avatars for real-time streaming performance
  • Ensure compatibility with popular VTuber platforms
  • Provide setup and usage documentation

Approach

1. Vroid Studio

  • Avatar Creation: Create avatars using Vroid Studio or custom modeling
  • Customization: Customize hairstyles, outfits, accessories, and expressions
  • Texture Design: Create custom textures for unique avatar appearance
  • Expression Setup: Configure facial expressions and emotions
  • Body Proportions: Adjust body proportions for desired aesthetic
  • Export Settings: Export VRM format with proper settings

2. Live2D/VRM Setup

  • VRM Format: Create and optimize VRM models for VTuber applications
  • Blendshapes: Set up blendshapes for facial expressions and lip sync
  • Bone Structure: Ensure proper bone structure for animation
  • Material Setup: Configure materials for optimal rendering in VTuber software
  • Physics Setup: Add physics for hair, clothing, and accessories
  • Performance Optimization: Optimize for real-time tracking and rendering

3. Face Tracking Integration

  • VSeeFace Setup: Configure avatars for VSeeFace tracking
  • Luppet Setup: Set up avatars for Luppet tracking
  • Face ID Tracking: Configure face ID-based tracking systems
  • Webcam Setup: Optimize webcam settings for accurate tracking
  • Expression Mapping: Map facial movements to avatar expressions
  • Lip Sync: Configure lip sync for audio-driven animation

Output Guidance

Provide:

  • VTuber avatar files (VRM format)
  • Avatar preview images and videos
  • Face tracking configuration files
  • Setup documentation for VTuber software
  • Performance characteristics and requirements
  • Compatibility notes for different platforms
  • Customization guidelines
  • Troubleshooting guide
  • Streaming setup instructions
  • Known limitations and workarounds

Read the full file on GitHub · 63 lines

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.

  1. 11d ago First seen · 63 lines · 20 tokens per session scan A 1c1e78aae1a1

Subscribe to this mod's changes

3d-vtuber-specialist is an agent published in the GitHub repository MonumentalSystems/Atlas-Agent-Teams (21 stars, last pushed 1mo ago), licensed MIT. It adds 20 tokens to every session and 521 once invoked, about $0.0001 per session on Opus 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.

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