Content
# DESIGN:OS 3D Blender Agent (`design-os-3d-blender`)
**Parametric 3D mechanical parts generator, headless Blender Python (`bpy`) pipeline, and embedded Three.js CAD showcase engine.**
Generate dimensionally accurate gears, enclosures, drone frames, and exploded mechanical assemblies from plain-English specs or JSON parameters, complete with glTF/STL exports and interactive browser inspection.
<p align="center">
<img src="docs/images/cover.png" alt="DESIGN:OS 3D Blender Agent — 2:1 Axonometric Technical Architecture" width="840">
</p>
<p align="center">
<a href="LICENSE"><img src="https://img.shields.io/badge/license-PolyForm_Shield_1.0.0-202020?style=flat-square&labelColor=202020&color=444444" alt="PolyForm Shield 1.0.0 License"></a>
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<a href="commands/doctor.md"><img src="https://img.shields.io/badge/diagnostics-%2Fdoctor-202020?style=flat-square&labelColor=202020&color=444444" alt="Doctor command"></a>
<a href="https://jangtrinh.github.io/design-os-3d-blender/"><img src="https://img.shields.io/badge/live_docs-GitHub_Pages-202020?style=flat-square&labelColor=202020&color=444444" alt="Live GitHub Pages"></a>
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</p>
<p align="center">
<a href="#quickstart">Quickstart</a> · <a href="#what-it-makes">What it makes</a> · <a href="#installation">Install</a> · <a href="#how-it-works">How it works</a> · <a href="#commands--diagnostics">Commands</a> · <a href="#quality-bar--limitations">Limits</a>
</p>
---
## Why this exists
Text-to-3D diffusion models produce melted, non-manifold blobs that cannot be 3D-printed, machined, or cleanly animated in web viewers. **`design-os-3d-blender`** drives Blender's Python API (`bpy`) and Three.js deterministically to produce crisp mechanical geometry and interactive CAD showcases.
| Dimension | Generic AI / Manual Workflow | DESIGN:OS 3D Blender Agent (`DESIGN:OS`) |
| :--- | :--- | :--- |
| **Geometry Quality** | Melted AI diffusion meshes with non-manifold holes | Clean parametric `bpy` booleans, bevels, and precision vertex topology |
| **Dimensional Accuracy** | Arbitrary unscaled units that fail in slicers | Millimeter-locked parametric dimensions and bounding-box verification |
| **Web Inspection** | Static screenshots with no way to inspect hidden faces | Embedded Three.js CAD viewer with orbit controls, wireframe, and exploded scrub |
| **Reproducibility** | Unrepeatable random seeds | Git-tracked Python generator scripts and declarative JSON part specs |
| **Privacy & Telemetry** | Opaque cloud telemetry or unverified third-party APIs | **Zero telemetry** — 100% local execution ([`PRIVACY.md`](PRIVACY.md) audited) |
---
## Quickstart
### 1. Install the plugin or CLI
**In Claude Code:**
```text
/plugin marketplace add jangtrinh/design-os-3d-blender
/plugin install design-os-3d-blender@design-os-3d-blender
```
**Or from your terminal (Codex, Gemini CLI, Antigravity, OpenCode, or standalone CLI):**
```bash
git clone https://github.com/jangtrinh/design-os-3d-blender.git
cd design-os-3d-blender
python3 scripts/self_check.py
```
### 2. Ask in plain English
Open your project in your AI coding agent and describe what you need:
> "Generate a parametric 24-tooth helical gear and mounting bracket in headless Blender and export glTF + STL artifacts."
> "Build an interactive Three.js CAD viewer page with exploded-view scrubbing, wireframe toggle, and orthographic camera presets."
> "Audit the exported mesh topology for non-manifold edges, zero-area faces, and bounding-box dimensional tolerances."
### 3. Verify your setup
```bash
python3 scripts/self_check.py
```
---
## What it makes
Every deliverable produced by `design-os-3d-blender` is backed by a deterministic verification gate rather than freehand AI guesswork.
<p align="center">
<img src="docs/images/cover.png" alt="DESIGN:OS 3D Blender Agent Output Specimen" width="840"><br>
<sub>Prompt: <code>"Generate a parametric 24-tooth helical gear and mounting bracket in headless Blender and export glTF + STL artifacts."</code></sub>
</p>
| Deliverable / Mode | Best for | Output Format | Verification Gate |
| :--- | :--- | :--- | :--- |
| **Parametric `bpy` Part Scripts** | Reproducible headless Blender generation for brackets, gears, and housings | `Python (.py) + JSON spec` | `Zero non-manifold edges` |
| **Print & Web 3D Assets** | Exporting production meshes for 3D printing and real-time web rendering | `.glb / .gltf / .stl / .obj` | `Bounding-box & file integrity check` |
| **Three.js CAD Showcase** | Interactive browser viewer with material switches and exploded assembly scrub | `Self-contained HTML + Three.js` | `60fps WebGL render check` |
---
## Installation
Choose the setup that matches your AI coding agent. Every option installs the same canonical skill (`skills/design-os-3d-blender/SKILL.md`) and `/doctor` diagnostic suite.
### Claude Code
Run these two commands inside Claude Code:
```text
/plugin marketplace add jangtrinh/design-os-3d-blender
/plugin install design-os-3d-blender@design-os-3d-blender
```
### OpenAI Codex
Install to your personal Codex skills directory:
```bash
git clone https://github.com/jangtrinh/design-os-3d-blender.git /tmp/design-os-3d-blender
mkdir -p ~/.codex/skills/design-os-3d-blender ~/.codex/prompts
cp -R /tmp/design-os-3d-blender/skills/design-os-3d-blender/* ~/.codex/skills/design-os-3d-blender/
cp /tmp/design-os-3d-blender/prompts/doctor.md ~/.codex/prompts/design-os-3d-blender-doctor.md
rm -rf /tmp/design-os-3d-blender
```
### Gemini CLI & Google Antigravity
```bash
git clone https://github.com/jangtrinh/design-os-3d-blender.git /tmp/design-os-3d-blender
mkdir -p ~/.gemini/skills/design-os-3d-blender
cp -R /tmp/design-os-3d-blender/skills/design-os-3d-blender/* ~/.gemini/skills/design-os-3d-blender/
rm -rf /tmp/design-os-3d-blender
```
### OpenCode, Cursor, Windsurf & Other Agent Harnesses
```bash
git clone https://github.com/jangtrinh/design-os-3d-blender.git /tmp/design-os-3d-blender
mkdir -p ~/.agents/skills/design-os-3d-blender
cp -R /tmp/design-os-3d-blender/skills/design-os-3d-blender/* ~/.agents/skills/design-os-3d-blender/
rm -rf /tmp/design-os-3d-blender
```
<details>
<summary>Verify or uninstall</summary>
**Verify installation:**
```bash
python3 scripts/self_check.py
```
Or run `/doctor` inside Claude Code / Codex to inspect installed skill paths, plugin manifests, and gate health.
**Uninstall:**
```bash
rm -rf ~/.claude/skills/design-os-3d-blender ~/.codex/skills/design-os-3d-blender ~/.gemini/skills/design-os-3d-blender ~/.agents/skills/design-os-3d-blender
```
</details>
---
## Usage & Prompt Cookbook
Once installed, `skills/design-os-3d-blender/SKILL.md` activates automatically when your prompt matches its domain triggers. Browse [`docs/cookbook.md`](docs/cookbook.md) for copy-paste prompt recipes.
**Generate & Scaffold**
```text
"Generate a parametric 24-tooth helical gear and mounting bracket in headless Blender and export glTF + STL artifacts."
```
**Audit & Verify**
```text
"Build an interactive Three.js CAD viewer page with exploded-view scrubbing, wireframe toggle, and orthographic camera presets."
```
**Export & Automate**
```text
"Audit the exported mesh topology for non-manifold edges, zero-area faces, and bounding-box dimensional tolerances."
```
---
## Commands & Diagnostics
| Command | Environment | What it does |
| :--- | :--- | :--- |
| `/doctor` | Claude Code / Codex | Read-only diagnostic check of installed skill paths, plugin manifests, and runtime prerequisites |
| `python3 scripts/self_check.py` | Terminal / CI | Deterministic offline verification of manifests, skill contracts, and governance files |
| `python3 scripts/self_check.py` | Terminal / CI | Verify 3D Blender skill contracts, CAD showcase assets, and repository delivery manifests |
---
## How it works
1. **Intent Routing** — Your AI agent matches your request against `skills/design-os-3d-blender/SKILL.md` frontmatter triggers.
2. **Progressive Context Loading** — Only the entry-point `SKILL.md` router loads initially; detailed recipes and scripts load on demand.
3. **Deterministic Execution** — Domain scripts and contracts execute locally with reproducible inputs and outputs.
4. **Gate Verification** — `scripts/self_check.py` and domain verifiers (`python3 scripts/self_check.py`) validate the artifact before completion.
5. **Zero-Telemetry Delivery** — Verified files are written directly to your workspace with zero external network calls.
```text
User Prompt / CLI Invocation
│
▼
┌───────────────────────────────────────────────┐
│ skills/design-os-3d-blender/SKILL.md
│ Progressive disclosure router & hard rules │
└───────────┬───────────────────────────────────┘
│ loads on demand
▼
┌───────────────────────────────────────────────┐
│ python3 scripts/self_check.py
│ Deterministic build & contract enforcement │
└───────────┬───────────────────────────────────┘
│ verifies
▼
┌───────────────────────────────────────────────┐
│ python3 scripts/self_check.py + /doctor │
│ Zero-telemetry local verification gate │
└───────────────────────────────────────────────┘
```
### What loads when
`design-os-3d-blender` uses progressive context disclosure so your agent's context window stays fast and focused:
| File | Loaded when |
| :--- | :--- |
| `skills/design-os-3d-blender/SKILL.md` | Always (~100–150 lines) — routing rules, triggers, and execution workflow |
| `docs/cookbook.md` | When selecting multi-step prompt recipes or domain patterns |
| `commands/doctor.md` / `prompts/doctor.md` | Only when running `/doctor` diagnostics |
| `llms.txt` | When indexed by AI answer engines, RAG pipelines, or repo crawlers |
---
## File structure
```text
design-os-3d-blender/
├── .claude-plugin/
│ ├── plugin.json # Claude Code plugin manifest
│ └── marketplace.json # Claude Code marketplace catalog
├── .codex-plugin/
│ └── plugin.json # OpenAI Codex plugin & interface manifest
├── .agents/
│ └── plugins/marketplace.json # Cross-agent local plugin registry
├── .factory-plugin/
│ ├── plugin.json # Factory / Droid plugin manifest
│ └── marketplace.json # Factory marketplace metadata
├── skills/
│ └── design-os-3d-blender/
│ └── SKILL.md # Canonical agent skill entrypoint
├── commands/
│ └── doctor.md # /doctor diagnostic slash command
├── prompts/
│ └── doctor.md # Codex diagnostic prompt mirror
├── scripts/
│ └── self_check.py # Deterministic repository & skill self-check
├── docs/
│ ├── cookbook.md # Copy-paste prompt recipes by job
│ └── llms.txt # GEO / LLM discovery index
├── PRIVACY.md # Zero-telemetry & local-first privacy commitment
├── SECURITY.md # Vulnerability disclosure & security policy
├── CONTRIBUTING.md # Contribution workflow & verification rules
├── CODE_OF_CONDUCT.md # Contributor Covenant code of conduct
├── CHANGELOG.md # Release history
├── llms.txt # Root LLM indexing manifest
├── LICENSE # PolyForm Shield 1.0.0
└── README.md
```
---
## Quality bar & Limitations
### It's working if...
- `python3 scripts/self_check.py` prints `ok: design-os-3d-blender self-check passed (design-os-3d-blender)` and exits `0`.
- `python3 scripts/self_check.py` passes with zero contract or test regressions.
- Your AI coding agent loads `skills/design-os-3d-blender/SKILL.md` automatically when given any prompt from [`docs/cookbook.md`](docs/cookbook.md).
- Network traffic during execution remains zero (guaranteed by [`PRIVACY.md`](PRIVACY.md)).
### When not to use
- Sheet-metal or paperboard folding dielines where 2D crease patterns govern topology (use `design-os-origami`).
- Organic character sculpting or AAA rigged game characters requiring manual ZBrush artistry.
- 2D vector UI motion walkthroughs (use `design-os-svg-animation`).
---
## DESIGN:OS Ecosystem
`design-os-3d-blender` is one of the 13 source-available engines in the **`DESIGN:OS`** ecosystem:
| Engine | Live Docs | Repository | Layer |
| :--- | :--- | :--- | :--- |
| **DESIGN:OS CLI** | [jangtrinh.github.io/design-os](https://jangtrinh.github.io/design-os/) | [`jangtrinh/design-os`](https://github.com/jangtrinh/design-os) | `cli` |
| **Knowledge Builder** | [jangtrinh.github.io/design-os-knowledge-builder](https://jangtrinh.github.io/design-os-knowledge-builder/) | [`jangtrinh/design-os-knowledge-builder`](https://github.com/jangtrinh/design-os-knowledge-builder) | `compiler` |
| **Figma Plugin & CLI** | [jangtrinh.github.io/design-os-figma-plugin](https://jangtrinh.github.io/design-os-figma-plugin/) | [`jangtrinh/design-os-figma-plugin`](https://github.com/jangtrinh/design-os-figma-plugin) | `plugin` |
| **SVG Animation Engine** | [jangtrinh.github.io/design-os-svg-animation](https://jangtrinh.github.io/design-os-svg-animation/) | [`jangtrinh/design-os-svg-animation`](https://github.com/jangtrinh/design-os-svg-animation) | `engine` |
| **3D Blender Agent** | [jangtrinh.github.io/design-os-3d-blender](https://jangtrinh.github.io/design-os-3d-blender/) | [`jangtrinh/design-os-3d-blender`](https://github.com/jangtrinh/design-os-3d-blender) | `3d / cad` |
| **OPAH ONE Drone** | [jangtrinh.github.io/design-os-drone-showcase](https://jangtrinh.github.io/design-os-drone-showcase/) | [`jangtrinh/design-os-drone-showcase`](https://github.com/jangtrinh/design-os-drone-showcase) | `hardware` |
| **GitHub Pages Engine** | [jangtrinh.github.io/design-os-github-page](https://jangtrinh.github.io/design-os-github-page/) | [`jangtrinh/design-os-github-page`](https://github.com/jangtrinh/design-os-github-page) | `pages` |
| **Apple Design OS** | [jangtrinh.github.io/design-os-apple](https://jangtrinh.github.io/design-os-apple/) | [`jangtrinh/design-os-apple`](https://github.com/jangtrinh/design-os-apple) | `swiftui` |
| **Agent Teacher** | [jangtrinh.github.io/design-os-pedagogy](https://jangtrinh.github.io/design-os-pedagogy/) | [`jangtrinh/design-os-pedagogy`](https://github.com/jangtrinh/design-os-pedagogy) | `pedagogy` |
| **Origami CAD** | [jangtrinh.github.io/design-os-origami](https://jangtrinh.github.io/design-os-origami/) | [`jangtrinh/design-os-origami`](https://github.com/jangtrinh/design-os-origami) | `packaging` |
| **Voice UX Architecture** | [jangtrinh.github.io/design-os-voice-ux](https://jangtrinh.github.io/design-os-voice-ux/) | [`jangtrinh/design-os-voice-ux`](https://github.com/jangtrinh/design-os-voice-ux) | `voice-ai` |
| **Code2Flow** | [jangtrinh.github.io/design-os-code2flow](https://jangtrinh.github.io/design-os-code2flow/) | [`jangtrinh/design-os-code2flow`](https://github.com/jangtrinh/design-os-code2flow) | `ast / audit` |
| **Generative UI** | [jangtrinh.github.io/design-os-generative-ui](https://jangtrinh.github.io/design-os-generative-ui/) | [`jangtrinh/design-os-generative-ui`](https://github.com/jangtrinh/design-os-generative-ui) | `runtime` |
---
## Contributing, Governance & License
- **Contributing**: See [`CONTRIBUTING.md`](CONTRIBUTING.md) for pull request guidelines and verification gates (`python3 scripts/self_check.py`).
- **Code of Conduct**: Governed by [`CODE_OF_CONDUCT.md`](CODE_OF_CONDUCT.md).
- **Security & Privacy**: Zero telemetry — see [`SECURITY.md`](SECURITY.md) and [`PRIVACY.md`](PRIVACY.md).
- **Changelog & LLM Index**: Track releases in [`CHANGELOG.md`](CHANGELOG.md) and machine-readable index in [`llms.txt`](llms.txt).
- **License**: [PolyForm Shield 1.0.0](LICENSE) © [Jang Trinh](https://github.com/jangtrinh). Free to use and modify, including for paid client work; you may not resell it or build a competing product from it.
---
If `design-os-3d-blender` saves you time, a star on GitHub helps other engineers and AI agents find it.
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