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 linegel/threejs-complete-set-of-skill --skill threejs-spectral-oceangit clone --depth 1 https://github.com/linegel/threejs-complete-set-of-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/linegel/threejs-complete-set-of-skill/threejs-spectral-ocean)<a href="https://agentmods.dev/skills/linegel/threejs-complete-set-of-skill/threejs-spectral-ocean"><img src="https://agentmods.dev/badge/skills/linegel/threejs-complete-set-of-skill/threejs-spectral-ocean/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/linegel/threejs-complete-set-of-skill/threejs-spectral-ocean"><img src="https://agentmods.dev/badge/skills/linegel/threejs-complete-set-of-skill/threejs-spectral-ocean.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 | $0.00054 | $0.02437 |
| Opus 5 | $0.00027 | $0.01218 |
| Sonnet 5 | $0.00011 | $0.00487 |
| Haiku 4.5 | $0.00005 | $0.00244 |
Grade A, and why
threejs-spectral-ocean 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 — 233 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spectral Ocean
Build a dimensioned random sea from directional variance density to one displaced, shaded surface. The spectral domain is a horizontally homogeneous periodic patch with one mean depth and one dispersion relation per cascade.
1. Gate the representation
Choose from the required observable, not the desired look:
| Observable | Owner |
|---|---|
| A few authored modes or exact cheap CPU queries | Parametric waves in $threejs-water-optics |
| Bounded disturbances or explicit walls | Bounded heightfield in $threejs-water-optics |
| Broad stochastic directional sea | This spectral FFT skill |
| Depth-varying refraction, diffraction, breaking, run-up, or wet/dry fronts | Coastal branch in $threejs-water-optics; this skill may supply offshore forcing |
| Overturning, entrained air, jets, or three-dimensional vortices | External free-surface solver |
Select FFT cascades only when the visible wavelength band contains enough independent modes that direct summation is more expensive or visibly repetitive. Record the visible wavelength interval, footprint, tolerated phase/slope error, periodic repeat distance, interaction needs, and measured storage budget.
Complete when: one row owns every required water observable, and every rejected row has a stated validity or cost reason.
2. Freeze the spectral convention
Use metres, seconds, radians per metre, and radians per second. Declare:
- stable horizontal physics frame and water datum;
- patch length, resolution,
Delta k, represented radial band, and guard band for every cascade; - inverse-transform sign, normalization, and centered-index correction;
- gravity, mean depth, surface tension, density, and uniform current;
- spectrum family, direction convention, seed, and cascade power windows;
- one coefficient/state clock and one render-surface owner.
The required inverse convention is
f[j] = sum_n F[n] exp(+i 2 pi n dot j / N).
If the implementation uses a normalized inverse, rescale coefficient initialization rather than tuning the sea afterward. Current is a separate water velocity and Doppler term; atmospheric wind never becomes water current.
What ships with it
4 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.
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 · 233 lines · 54 tokens per session scan A 1a45935ecf15
threejs-spectral-ocean is a skill published in the GitHub repository linegel/threejs-complete-set-of-skill (6 stars, last pushed 1mo ago), licensed ISC. It adds 54 tokens to every session and 2,437 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 2026-08-31.
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