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.
npx skills add rawwerks/VibeCAD --skill gltf-transformgit clone --depth 1 https://github.com/rawwerks/VibeCADWrote 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.
[](https://agentmods.dev/skills/rawwerks/vibecad/gltf-transform)<a href="https://agentmods.dev/skills/rawwerks/vibecad/gltf-transform"><img src="https://agentmods.dev/badge/skills/rawwerks/vibecad/gltf-transform/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.
<a href="https://agentmods.dev/skills/rawwerks/vibecad/gltf-transform"><img src="https://agentmods.dev/badge/skills/rawwerks/vibecad/gltf-transform.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00083 | $0.00843 |
| Opus 5 | $0.00042 | $0.00421 |
| Sonnet 5 | $0.00017 | $0.00169 |
| Haiku 4.5 | $0.00008 | $0.00084 |
Grade B, and why
gltf-transform scanned grade B with 1 finding 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 9d 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.
Unrestricted tool accessmediumExcessive agency
A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.
No installation required. Run any command with: How it starts
The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
glTF Transform
Post-process GLB/glTF files: optimize, compress, inspect, and transform 3D models.
- CLI docs: https://gltf-transform.dev/cli
- GitHub: https://github.com/donmccurdy/glTF-Transform
- npm:
@gltf-transform/cli
Zero-Setup with bunx
No installation required. Run any command with:
bunx @gltf-transform/cli <command> [args]
First run downloads the tool, subsequent runs are instant.
Quick Start
# Inspect model stats first
bunx @gltf-transform/cli inspect model.glb
# One-command optimization (good defaults)
bunx @gltf-transform/cli optimize input.glb output.glb --compress draco --texture-compress webp
CAD Workflow Integration
Typical pipeline after generating models with build123d:
create geometry → export GLB → optimize → verify visually
- build123d exports high-quality CAD geometry
- gltf-transform compresses for web delivery
- render-glb verifies the result
Compression Methods
| Method | Best For | Trade-offs |
|---|---|---|
| Draco | Web delivery, Three.js | Smallest geometry, requires decoder |
| Meshopt | Universal, animations | Good compression + animation support |
| Quantize | Compatibility | No decoder needed, moderate compression |
# Draco - best geometry compression
bunx @gltf-transform/cli draco input.glb output.glb
# Meshopt - geometry + animation compression
bunx @gltf-transform/cli meshopt input.glb output.glb
# Quantize only - no external decoder needed
bunx @gltf-transform/cli quantize input.glb output.glb
Texture Compression
# WebP - good compression, wide browser support
bunx @gltf-transform/cli webp input.glb output.glb
# Resize large textures
bunx @gltf-transform/cli resize input.glb output.glb --width 1024 --height 1024
Common Operations
Inspect Model Stats
bunx @gltf-transform/cli inspect model.glb
Shows vertex count, file size breakdown, texture sizes - helps decide what to optimize.
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.
- 9d ago First seen · 118 lines · 0 tokens per session scan B 0e216c42d4ec
gltf-transform is a skill published in the GitHub repository rawwerks/VibeCAD (117 stars, last pushed 8mo ago), licensed MIT. It adds 83 tokens to every session and 843 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 1 finding (unrestricted tool access). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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