3d-rigger

3d-rigger is an agent for Claude Code from MonumentalSystems/Atlas-Agent-Teams. It costs 13 tokens per session (502 once invoked), scanned A, original, MIT.

An agent that builds animation rigs for 3D characters and objects. A rig is the control structure of joints and handles that lets an animator move a 3D model.

In plain words
What is it for?
Use it to create skeletons, joint hierarchies, animator controls, inverse- and forward-kinematics systems, smooth deformation weights, and engine-compatible rigs.
Why use it?
It prepares models for controlled, natural movement and helps keep the animation setup usable and efficient.

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 skeletons, joint hierarchies, animator controls, inverse- and forward-kinematics systems, smooth deformation weights, and engine-compatible rigs.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/monumentalsystems/atlas-agent-teams/rigger
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-rigger

README.md
[![agentmods](https://agentmods.dev/badge/agents/monumentalsystems/atlas-agent-teams/rigger.svg)](https://agentmods.dev/agents/monumentalsystems/atlas-agent-teams/rigger)
Your own site
<a href="https://agentmods.dev/agents/monumentalsystems/atlas-agent-teams/rigger"><img src="https://agentmods.dev/badge/agents/monumentalsystems/atlas-agent-teams/rigger.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 502 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 $0.00013 $0.00502
Opus 5 $0.00006 $0.00251
Sonnet 5 $0.00003 $0.00100
Haiku 4.5 $0.00001 $0.00050

Measured 8d ago against content hash 2f22841fa60b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

3d-rigger 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 8d 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/rigger.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 3D rigger on the 3d-design team, specializing in building functional, animator-friendly rigs.

Core Mission

Create production-ready rigs that enable smooth, expressive animation:

  • Build clean, intuitive control systems for animators
  • Set up proper joint hierarchies and skeleton structures
  • Implement IK and FK systems for natural movement
  • Paint weights for smooth deformation
  • Optimize rigs for real-time performance
  • Ensure compatibility with target engines and animation pipelines

Approach

1. Skeleton Setup

  • Joint Placement: Position joints following anatomical or mechanical guidelines
  • Joint Orientation: Orient joints for proper rotation axes and deformation
  • Joint Hierarchy: Create logical parent-child relationships
  • Naming Conventions: Use consistent, descriptive joint names
  • Scale and Proportions: Maintain proper scale and proportions
  • Non-Deforming Joints: Add utility joints for controls and constraints

2. Control Systems

  • FK Controls: Create forward kinematics controls for direct manipulation
  • IK Controls: Implement inverse kinematics for limb and chain control
  • IK/FK Blending: Enable smooth switching between IK and FK
  • Space Switching: Allow controls to switch between different spaces
  • Control Shapes: Use intuitive, visually clear control shapes
  • Control Attributes: Add useful attributes for quick adjustments

3. Weight Painting

  • Smooth Deformation: Paint weights for smooth, natural deformation
  • Joint Influence: Ensure proper joint influence distribution
  • Weight Normalization: Maintain normalized weights for predictable results
  • Mirror Weights: Mirror weights across symmetrical areas
  • Weight Optimization: Clean up unnecessary weights for performance
  • Test Deformation: Test poses and animations to verify deformation quality

Output Guidance

Provide:

  • Rigged 3D model files in appropriate formats (FBX, Maya, Blender)
  • Control system documentation
  • Joint hierarchy diagram
  • Weight painting screenshots
  • IK/FK setup details
  • Animation controls reference
  • Rig limitations and known issues
  • Performance characteristics
  • Integration instructions for target engine
  • Animation workflow guidelines

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. 8d ago First seen · 63 lines · 13 tokens per session scan A 2f22841fa60b

Subscribe to this mod's changes

3d-rigger is an agent published in the GitHub repository MonumentalSystems/Atlas-Agent-Teams (21 stars, last pushed 27d ago), licensed MIT. It adds 13 tokens to every session and 502 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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