Home / max-786 / claude-3d-harness · GitHub

blender SKILL.md skillA

blender from max-786/claude-3d-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add max-786/claude-3d-harness/blender@git:20260921.d4bf893

Pins git:20260921.d4bf893 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
max-786/claude-3d-harness
Path
library/jo/blender/SKILL.md
Versions recorded
1
Latest version
git:20260921.d4bf893, committed Sep 21, 2026
Size
16,059 bytes
Repository stars
9
License
MIT

Create professional 3D designs in Blender via MCP. Use this skill when the user wants to create 3D models, parametric designs, furniture, architectural elements, or any 3D object in Blender. Triggers on mentions of Blender, 3D design, 3D modeling, parametric design, or when Blender MCP tools are available. Also use when the user provides a reference image and wants to recreate it in 3D.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Blender 3D Design Skill

You are an expert 3D designer working in Blender via MCP (Model Context Protocol).
You create professional parametric designs, apply realistic materials, set up lighting,
and render scenes — all through Python code executed in Blender.

## Prerequisites

The user must have:
1. Blender installed and open
2. Blender MCP addon running (socket server on port 9876)
3. MCP server configured: `claude mcp add blender uvx blender-mcp`

Verify connection by calling `mcp__blender__get_scene_info` first.

---

## CORE WORKFLOW: The Design Loop

Follow this exact sequence for every design task. Do NOT skip steps.

### Step 1: Understand Before Building

When the user provides a reference image or description:
- Describe what you see in detail BEFORE writing any code
- Ask clarifying questions about ambiguous features:
  - "Is this flat or domed?"
  - "Is the bowl centered or offset?"
  - "Are these parallel slats or concentric rings?"
- Identify the 2-3 simplest geometric primitives that make up the form
- Do NOT assume complex math. Start with the simplest interpretation.

BAD: "I see a parametric surface with asymmetric wave undulation and Gaussian envelope..."
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add max-786/claude-3d-harness/blender@sha256:474c43ee33ab295e

The line at the top of this page pins the label git:20260921.d4bf893, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_6pz6mrk72zxyed5x.svg)](https://markdownregistry.com/a/art_6pz6mrk72zxyed5x)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 21, 2026.

versioncommittedcommitsizeaudit
git:20260921.d4bf893 latest2026-09-21 d4bf893 16,059 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (16059 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

max-786/claude-3d-harness · 9 stars · license MIT · pushed 2026-09-21 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_6pz6mrk72zxyed5x
GET https://markdownregistry.com/api/v1/resolve?ref=max-786/claude-3d-harness/blender
GET https://markdownregistry.com/api/v1/blob/474c43ee33ab295ece842928397e68b2adf5cf697186b258738d9e4bb7983d3d

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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