Borrowing it
Nothing to install: this file belongs to MohamedAbdallah-14/prompt-to-asset. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/MohamedAbdallah-14/prompt-to-asset/main/.claude/skills/favicon/SKILL.mdgit clone --depth 1 https://github.com/MohamedAbdallah-14/prompt-to-assetWrote 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/mohamedabdallah-14/prompt-to-asset/favicon)<a href="https://agentmods.dev/skills/mohamedabdallah-14/prompt-to-asset/favicon"><img src="https://agentmods.dev/badge/skills/mohamedabdallah-14/prompt-to-asset/favicon/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/mohamedabdallah-14/prompt-to-asset/favicon"><img src="https://agentmods.dev/badge/skills/mohamedabdallah-14/prompt-to-asset/favicon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
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 →
- medium Agent Snooping · line 34 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
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 | $0.00060 | $0.00900 |
| Opus 5 | $0.00030 | $0.00450 |
| Sonnet 5 | $0.00012 | $0.00180 |
| Haiku 4.5 | $0.00006 | $0.00090 |
Grade A, and why
favicon 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 — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Favicon generation
What modern browsers actually want (see research 11)
<link rel="icon" href="/favicon.ico" sizes="any">
<link rel="icon" type="image/svg+xml" href="/icon.svg">
<link rel="icon" type="image/svg+xml" href="/icon-dark.svg" media="(prefers-color-scheme: dark)">
<link rel="apple-touch-icon" href="/apple-touch-icon.png">
<link rel="manifest" href="/manifest.webmanifest">
| File | Size | Alpha | Notes |
|---|---|---|---|
favicon.ico |
16, 32, 48 packed | yes | legacy compatibility; <15KB |
icon.svg |
vector | yes | primary modern icon |
icon-dark.svg |
vector | yes | prefers-color-scheme: dark |
apple-touch-icon.png |
180×180 | no — opaque | iOS home-screen; transparent = black background on iOS |
pwa/192.png, pwa/512.png |
192, 512 | yes | manifest any purpose |
pwa/512-maskable.png |
512, 80% safe zone padding | opaque | manifest maskable purpose |
Generation strategy
SVG-first. Three paths, in order of preference:
- Reuse existing mark. If a brand
logo-mark.svgexists in the brand bundle, use it directly. Optimize with SVGO. Generate color variants by re-coloring SVG paths. - LLM-author SVG. For simple geometric marks (letter, glyph, shape), ask Claude/GPT to emit raw SVG with fixed viewBox, ≤40 paths, palette as hex list. Validate with
@resvg/resvg-jsrasterization. - Generate raster + vectorize. Prompt at 1024² (see
skills/logo/SKILL.md), BiRefNet matte, K-means 4-color (favicons benefit from low color count),potrace --colororvtracer --mode polygon, SVGO.
Prompt scaffold for raster fallback
A simple, memorable [letter | glyph | shape] representing [SUBJECT].
Bold silhouette. Two or three colors maximum: [#primary, #bg].
Subject fills 70% of frame, centered.
Solid pure white background.
No text, no details that vanish at 16x16.
1:1 square, 1024x1024.
Dark-mode variant
Option A (recommended): generate two separate SVGs — light on white, dark on black. Never algorithmically invert (loses WCAG contrast).
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 · 75 lines · 60 tokens per session scan A e47947063eaf
favicon is a skill published in the GitHub repository MohamedAbdallah-14/prompt-to-asset (19 stars, last pushed yesterday), licensed MIT. It adds 60 tokens to every session and 900 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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