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/svg-authoring/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/svg-authoring)<a href="https://agentmods.dev/skills/mohamedabdallah-14/prompt-to-asset/svg-authoring"><img src="https://agentmods.dev/badge/skills/mohamedabdallah-14/prompt-to-asset/svg-authoring/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/svg-authoring"><img src="https://agentmods.dev/badge/skills/mohamedabdallah-14/prompt-to-asset/svg-authoring.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 analysis-evasion · line 1 Suspicious Unicode normalization or mixed-script contentFix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
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 | $0.00086 | $0.02018 |
| Opus 5 | $0.00043 | $0.01009 |
| Sonnet 5 | $0.00017 | $0.00404 |
| Haiku 4.5 | $0.00009 | $0.00202 |
Grade A, and why
svg-authoring 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 — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SVG authoring (inline_svg mode)
Engaged when asset_generate_* returns an InlineSvgPlan. Read svg_brief (viewBox, palette, path_budget, require[], do_not[], skeleton) and emit one <svg>…</svg> code block that honors every constraint. Then call asset_save_inline_svg({ svg, asset_type }) so the file lands on disk.
Hard constraints (non-negotiable)
| Asset type | viewBox | Path budget | Colors | Safe-zone | Notes |
|---|---|---|---|---|---|
logo |
0 0 120 120 (or brief-specified) |
≤40 | 2–4 hex | subject fits inside 80% center box | Flat, geometric, closed shapes |
favicon (master SVG) |
0 0 64 64 |
≤30 | 2–3 hex | legible at 16×16 after downsampling | ≥2px stroke equivalent at 16² |
icon_pack (per icon) |
0 0 24 24 |
≤8 | monocolor (currentColor) OR 2 tones |
2px grid, 1.5–2px strokes | All icons share grid + stroke weight |
sticker |
0 0 240 240 |
≤60 | up to 6 hex | bleed allowed; no hard edge requirement | Chunkier line weights OK |
transparent_mark |
0 0 200 200 |
≤40 | 2–3 hex | 80% center | Never emit <rect fill="white"> as "background" |
app_icon master |
0 0 1024 1024 |
≤60 | 3–5 hex | iOS HIG 824² center | Opaque bg allowed; no alpha needed on this one |
Never emit: <image> tags, external refs, <script>, inline Base64, fonts with unverified family names, CSS animations in a favicon master, gradients in an icon-pack icon.
Design principles (from frontend-design, adapted for SVG)
- Aesthetic commitment — pick one direction from the brief and execute it precisely. Brutalist, minimal, geometric, organic — not a blend. Do not hedge.
- Silhouette clarity — the shape must read as a single-color fill. Squint test: does it hold together when all paths collapse to black?
- Optical balance over mathematical centering — curves/triangles need ~2–4% shift to feel centered. Use the viewBox midpoint as a starting reference, not a law.
- Proportional stroke weights — strokes authored as a ratio of viewBox, not absolute pixels. A 1px stroke at viewBox 120 becomes invisible at 16×16. Use 2–4px for icons, 4–8px for logos.
- Negative space as structure — gaps between paths carry meaning. Don't fill every cell.
- Every path earns its place — if a path can be removed without changing the silhouette, remove it. Path count is a quality signal.
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 · 111 lines · 86 tokens per session scan A a81182cbf921
svg-authoring is a skill published in the GitHub repository MohamedAbdallah-14/prompt-to-asset (19 stars, last pushed yesterday), licensed MIT. It adds 86 tokens to every session and 2,018 once invoked, about $0.0004 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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