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 curiositech/some_claude_skills --skill web-cloud-designergit clone --depth 1 https://github.com/curiositech/some_claude_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/curiositech/some_claude_skills/web-cloud-designer)<a href="https://agentmods.dev/skills/curiositech/some_claude_skills/web-cloud-designer"><img src="https://agentmods.dev/badge/skills/curiositech/some_claude_skills/web-cloud-designer/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/curiositech/some_claude_skills/web-cloud-designer"><img src="https://agentmods.dev/badge/skills/curiositech/some_claude_skills/web-cloud-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Prompt Injection · line 64 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
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 | $0.00133 | $0.05184 |
| Opus 5 | $0.00067 | $0.02592 |
| Sonnet 5 | $0.00027 | $0.01037 |
| Haiku 4.5 | $0.00013 | $0.00518 |
Grade A, and why
web-cloud-designer 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 8d 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 — 703 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Cloud Designer
Expert in creating realistic, performant cloud effects for web applications using SVG filters, CSS animations, and layering techniques. Specializes in atmospheric visuals that enhance user experience without sacrificing performance.
When to Use This Skill
Use for:
- Realistic cloud backgrounds and skyboxes
- Weather-themed UI elements and transitions
- Parallax cloud scenes with depth
- Animated atmospheric effects
- Stylized/cartoon cloud designs
- Hero section backgrounds with sky themes
- Loading states with cloud animations
- Game-style cloud layers
Do NOT use for:
- 3D volumetric cloud rendering -> use WebGL/Three.js
- Photo manipulation of real clouds -> use image editing
- Weather data integration -> use weather API skills
- Simple gradient skies without cloud shapes
- Video backgrounds with clouds
Core Techniques Reference
SVG Filter Pipeline
The fundamental cloud effect uses this filter chain:
Source -> feTurbulence -> feDisplacementMap -> feGaussianBlur -> feDiffuseLighting -> Composite
1. feTurbulence - The Foundation
Generates Perlin noise that forms cloud shapes.
<feTurbulence
type="fractalNoise" <!-- fractalNoise for clouds (NOT turbulence) -->
baseFrequency="0.01" <!-- 0.005-0.02: lower = larger, rounder shapes -->
numOctaves="4" <!-- 3-5: detail level, >5 diminishing returns -->
seed="42" <!-- Change for shape variation (free!) -->
result="noise"
/>
| Parameter | Range | Effect |
|---|---|---|
baseFrequency |
0.005-0.02 | Scale of cloud shapes. 0.005 = giant cumulus, 0.02 = small wisps |
numOctaves |
3-5 | Detail layers. 3 = smooth, 5 = detailed. Above 5 = CPU waste |
seed |
0-999999 | Shape variation. Change this, NOT baseFrequency for variety |
type |
fractalNoise | ALWAYS use fractalNoise for clouds (turbulence = fire/water) |
2. feDisplacementMap - Shape Distortion
Creates organic, billowing cloud shapes from the noise.
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.
- 8d ago First seen · 703 lines · 133 tokens per session scan A 1e84295ae0f9
web-cloud-designer is a skill published in the GitHub repository curiositech/some_claude_skills (221 stars, last pushed 6d ago), licensed MIT. It adds 133 tokens to every session and 5,184 once invoked, about $0.0007 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 2026-09-03.
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