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 neuromechanist/research-skills --skill transparent-iconsgit clone --depth 1 https://github.com/neuromechanist/research-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/neuromechanist/research-skills/transparent-icons)<a href="https://agentmods.dev/skills/neuromechanist/research-skills/transparent-icons"><img src="https://agentmods.dev/badge/skills/neuromechanist/research-skills/transparent-icons/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/neuromechanist/research-skills/transparent-icons"><img src="https://agentmods.dev/badge/skills/neuromechanist/research-skills/transparent-icons.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 Rogue Agent · line 3 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00147 | $0.01426 |
| Opus 5 | $0.00073 | $0.00713 |
| Sonnet 5 | $0.00029 | $0.00285 |
| Haiku 4.5 | $0.00015 | $0.00143 |
Grade A, and why
transparent-icons scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Transparent Icons
Generate flat scientific icons (Nature/Science journal style) with transparent backgrounds. Used as panel elements by the [[scientific-figure]] composer or as standalone graphics for posters, presentations, and grants.
Backends
Two generation backends, auto-selected:
- Codex CLI
image_gentool (preferred). Uses the local Codex authentication (~/.codex/auth.json). NoOPENAI_API_KEYrequired. Internally uses gpt-image-2 (April 2026). Default whencodexis on$PATHand authenticated. - OpenAI Images API (fallback). Calls
client.images.generate(model="gpt-image-2", ...)directly. RequiresOPENAI_API_KEYin environment or.env.
Why two backends: many researchers have a ChatGPT subscription and codex login but no separate API key. Auto-selection routes through Codex first to keep the no-API-key path working; explicit --backend codex or --backend api overrides.
Transparency
gpt-image-2 (April 2026) does not accept background="transparent" — both backends always generate opaque PNGs. Transparency is applied as a post-process. Two methods:
threshold(default) — drop near-white pixels via Pillow. Fast, no extra deps. Works well for flat 2-color icons on a clean white background. Can leave fringes on anti-aliased edges and may erase highlights where the foreground itself is near-white.birefnet(opt-in) —rembg+ BiRefNet ONNX model with alpha matting. Cleaner edges, handles complex foregrounds. One-time ~400 MB model download on first run; requires extra deps (rembg,onnxruntime).
Pick threshold for the canonical flat-icon use case. Pick birefnet when the icon contains light-colored content (white parts of a brain MRI, light reflections on glass) that the threshold method would erase, or when the icon will be composited at large sizes where fringes are visible.
Usage
Free-form prompt:
uv run --with openai --with python-dotenv --with pillow python scripts/generate_icon.py \
"a human brain with EEG electrodes" -o brain_eeg.png --transparent
What ships with it
7 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 · 102 lines · 147 tokens per session scan A be1b84d371b8
transparent-icons is a skill published in the GitHub repository neuromechanist/research-skills (45 stars, last pushed 10d ago), licensed BSD-3-Clause. It adds 147 tokens to every session and 1,426 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 2026-08-30.
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