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 scottstts/Threejs-Awesome-Graphics-Agent-Skills --skill threejs-procedural-architecturegit clone --depth 1 https://github.com/scottstts/Threejs-Awesome-Graphics-Agent-SkillsWrote 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/scottstts/threejs-awesome-graphics-agent-skills/threejs-procedural-architecture)<a href="https://agentmods.dev/skills/scottstts/threejs-awesome-graphics-agent-skills/threejs-procedural-architecture"><img src="https://agentmods.dev/badge/skills/scottstts/threejs-awesome-graphics-agent-skills/threejs-procedural-architecture/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/scottstts/threejs-awesome-graphics-agent-skills/threejs-procedural-architecture"><img src="https://agentmods.dev/badge/skills/scottstts/threejs-awesome-graphics-agent-skills/threejs-procedural-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00057 | $0.00470 |
| Opus 5 | $0.00028 | $0.00235 |
| Sonnet 5 | $0.00011 | $0.00094 |
| Haiku 4.5 | $0.00006 | $0.00047 |
Grade A, and why
threejs-procedural-architecture 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Procedural Architecture
Separate design planning from mesh emission. A building generator should produce an inspectable plan before it produces triangles.
This skill contains exemplary examples and assets beyond descriptive guidance, they're worth studying, referencing, or even copying. Use them sufficiently when relevant and do NOT blindly skip them.
Required architecture
settings
→ mass grammar
→ exposed-surface graph
→ façade/roof placements
→ module registry
→ material-slot mesh writer
→ geometries
Read references/grammar-and-mesh-compiler.md before implementing the generator.
Read the procedural financial tower compiler for seeded tier planning, semantic façade placement, reserved zones, material-slot BufferGeometry output, projected detail, and mechanism-specific diagnostics.
Rules
- Massing, façade rhythm, and detail modules are separate layers.
- Resolve exposed edges before façade placement. Do not decorate hidden internal faces.
- Modules own semantic anchors and construction depth, not global building coordinates.
- Compile by material slot to reduce draw calls without destroying material separation.
- Preserve real dimensions for floor height, bay width, trim projection, and texture density.
- Randomness may select among valid designs; it must not repair invalid geometry.
- Provide topology, façade ownership, material/geometry, and shadow diagnostics appropriate to the renderer path.
Acceptance
The generated building must survive:
- silhouette-only view;
- flat untextured material;
- grazing light;
- close inspection of corners and roof transitions;
- seed variation without broken bays, overlapping ownership, or floating ornament;
- triangle and module-count reporting.
Routing boundary
Use $threejs-procedural-geometry for a reusable profile, sweep, ring, or mesh
writer without a building grammar. This skill owns massing, façade semantics,
architectural modules, and building-plan compilation.
What ships with it
9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- agents/openai.yaml 249 B
- assets/procedural-financial-tower/limestone-albedo.png 3177 KB
- assets/procedural-financial-tower/limestone-normal.png 3789 KB
- assets/procedural-financial-tower/ornaments-albedo.png 3021 KB
- assets/procedural-financial-tower/ornaments-normal.png 1923 KB
- assets/procedural-financial-tower/THIRD_PARTY_LICENSES.md 1.2 KB
- examples/procedural-financial-tower/building-system.js 136 KB runs code
- examples/procedural-financial-tower/shadow-clipmaps.js 11 KB runs code
- references/grammar-and-mesh-compiler.md 13 KB
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.
- 12d ago First seen · 61 lines · 57 tokens per session scan A 4a2327585614
threejs-procedural-architecture is a skill published in the GitHub repository scottstts/Threejs-Awesome-Graphics-Agent-Skills (804 stars, last pushed 2d ago), licensed MIT. It adds 57 tokens to every session and 470 once invoked, about $0.0003 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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