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 luisnavarrete12/threejs-ai-skill --skill threejs-ai-skillgit clone --depth 1 https://github.com/luisnavarrete12/threejs-ai-skillWrote 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/luisnavarrete12/threejs-ai-skill/threejs-ai-skill)<a href="https://agentmods.dev/skills/luisnavarrete12/threejs-ai-skill/threejs-ai-skill"><img src="https://agentmods.dev/badge/skills/luisnavarrete12/threejs-ai-skill/threejs-ai-skill/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/luisnavarrete12/threejs-ai-skill/threejs-ai-skill"><img src="https://agentmods.dev/badge/skills/luisnavarrete12/threejs-ai-skill/threejs-ai-skill.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 | $0.00213 | $0.01416 |
| Opus 5 | $0.00106 | $0.00708 |
| Sonnet 5 | $0.00043 | $0.00283 |
| Haiku 4.5 | $0.00021 | $0.00142 |
Grade A, and why
threejs-ai-skill 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 10d 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 — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Three.js AI Skill
AI-generated Three.js code almost always compiles — and then looks and feels broken. Models load at the wrong scale facing random directions; objects spawn at arbitrary coordinates, float, or clip through everything; the camera drifts unframed; there are never any collisions; controls are frame-rate-dependent and don't handle diagonals; and characters slide across the floor while their legs move out of sync.
The root cause is always the same: the model writes code without reasoning about the physical and spatial rules of a real 3D world. This skill encodes those rules as layers. Read the layer(s) relevant to the request; each builds on the one before.
The layer stack
- Scene sanity (this file, §1) — scale, orientation, lighting, camera, placement, renderer setup. Every scene needs this.
- World coherence →
references/world-coherence.md— no infinite spawns, relative scale, everything on the ground, framed camera, intentional layout. - Collisions →
references/collision-bounds.md— objects that don't pass through everything; test-before-move; when to use a physics engine. - Input & controls →
references/input-controls.md— deltaTime, normalized diagonals, multi-key, clamped mouse-look. - Locomotion →
references/locomotion.md— characters that walk without sliding or floating; turn toward movement; blend idle/walk/run. (Verify visually — hard to get right.) - Animation handling →
references/animation-handling.md— play clips, retarget animation from another file, and procedural motion for models with no animation. (Procedural is experimental — always test the visual result before trusting it.)
Read references/model-normalization.md for the drop-in model-loading helpers referenced throughout.
react-three-fiber: every rule below applies unchanged — r3f is a renderer binding, not a different engine. Prefer drei equivalents where they exist (<Bounds> for framing, <Environment> for IBL, <OrbitControls makeDefault>), and do movement/physics work in useFrame((_, delta) => ...), never in useEffect or render.
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.
- 10d ago First seen · 68 lines · 213 tokens per session scan A 2c7b4a8e7694
threejs-ai-skill is a skill published in the GitHub repository luisnavarrete12/threejs-ai-skill (2 stars, last pushed 2mo ago), licensed MIT. It adds 213 tokens to every session and 1,416 once invoked, about $0.0011 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 2026-08-31.
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