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 agentmods add skills/ssbun/csl-agent-kit/create-app-iconnpx skills add SSBun/csl-agent-kit --skill create-app-icongit clone --depth 1 https://github.com/SSBun/csl-agent-kitWrote 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/ssbun/csl-agent-kit/create-app-icon)<a href="https://agentmods.dev/skills/ssbun/csl-agent-kit/create-app-icon"><img src="https://agentmods.dev/badge/skills/ssbun/csl-agent-kit/create-app-icon.svg" alt="Measured on agentmods" 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 | $0.00074 | $0.00857 |
| Opus 5 | $0.00037 | $0.00428 |
| Sonnet 5 | $0.00015 | $0.00171 |
| Haiku 4.5 | $0.00007 | $0.00086 |
Grade A, and why
create-app-icon 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 4d 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create App Icon
Use /create-app-icon [project-path]. If no path is provided, inspect the current working directory.
Required Sequence
Follow these stages in order. Do not merge or skip the approval gate.
1. Determine the Style
Inspect only enough project context to identify its purpose, audience, platform, brand assets, subject, composition, safe zone, and intended platform background.
Read references/icon-styles.md. If no style is chosen, show its ten names plus Custom, display assets/icon-style-catalog.png when supported, and ask for one. Apply that preset without mixing styles unless requested. If the subject is unclear, offer at most three concepts in that style. Avoid text and green, yellow, or cyan subject colors that conflict with the key.
2. Generate the Green-Screen Source
Use the host's available image-generation capability. If none is available, provide the final prompt and stop; never claim that an image was generated.
Generate a square source with these fixed constraints:
Create a polished app-icon subject on a perfectly flat solid #00FF00 chroma-key background.
The background must be one uniform color with no gradient, texture, lighting variation, floor, shadow, or reflection.
Keep the subject centered, fully separated from the canvas edges, and inside the target platform safe zone.
Do not use green, yellow, or cyan in the subject. No text, watermark, border, mockup, rounded-square mask, or background decoration.
Output a square 1024×1024 image.
Add the chosen visual details without weakening these constraints. Save non-destructively and show the source.
3. Wait for Source Approval
Ask the user to approve the displayed green-screen source or describe one visual change. Stop at this gate.
- On revision, regenerate and show the new source again.
- Run no background removal until the user explicitly approves the displayed version.
- Approval applies only to that exact source image.
4. Create the Transparent Master
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.
- 4d ago First seen · 85 lines · 74 tokens per session scan A 0a274f573474
create-app-icon is a skill published in the GitHub repository SSBun/csl-agent-kit (10 stars, last pushed 3d ago), licensed MIT. It adds 74 tokens to every session and 857 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 2026-08-31.
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