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 roedyrustam/vibes-plug --skill apple-ecosystem-expertgit clone --depth 1 https://github.com/roedyrustam/vibes-plugWrote 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/roedyrustam/vibes-plug/apple-ecosystem-expert)<a href="https://agentmods.dev/skills/roedyrustam/vibes-plug/apple-ecosystem-expert"><img src="https://agentmods.dev/badge/skills/roedyrustam/vibes-plug/apple-ecosystem-expert/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/roedyrustam/vibes-plug/apple-ecosystem-expert"><img src="https://agentmods.dev/badge/skills/roedyrustam/vibes-plug/apple-ecosystem-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00066 | $0.01799 |
| Opus 5 | $0.00033 | $0.00899 |
| Sonnet 5 | $0.00013 | $0.00360 |
| Haiku 4.5 | $0.00007 | $0.00180 |
Grade A, and why
apple-ecosystem-expert 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 10d 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 — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Apple Ecosystem Expert — vibes-plug Skill
English
Description
Expert guide for Apple Ecosystem development. Covers Safari WebKit compatibility, Progressive Web Apps (PWAs) tailored for iOS, touch interactions, manifest.json configurations, and applying Human Interface Guidelines (HIG) principles to web and iOS applications.
Trigger Conditions
Activate this skill when the user is:
- Asking for Safari browser compatibility or fixing WebKit bugs.
- Developing PWAs or web apps targeting iOS/iPadOS devices.
- Asking about
apple-touch-icon,apple-mobile-web-app-capable, or related meta tags. - Building UI elements that need to look and feel native on Apple devices.
Core Concepts
1. iOS PWA & Meta Tags
To ensure a web application looks and acts like a native app on iOS when added to the home screen, include these specific meta tags and configurations:
<!-- iOS Safari PWA Meta Tags -->
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="default" />
<meta name="apple-mobile-web-app-title" content="App Title" />
<link rel="apple-touch-icon" href="/icon-192x192.png" />
<!-- Support for splash screens requires specific sizes, consider using PWA asset generators -->
2. Safari WebKit CSS Quirks
Safari (WebKit) has distinct behavior for viewport sizing and scrolling.
| CSS Feature | WebKit Problem | Solution / Workaround |
|---|---|---|
100vh |
Ignores the bottom navigation bar on mobile Safari, causing overflow. | Use 100dvh (Dynamic Viewport Height) or safe area insets. |
| Over-scrolling | "Rubber-banding" effect reveals background on scroll limits. | overscroll-behavior: none; on body. |
| Safe Area | Notches and Dynamic Islands block content. | Use env(safe-area-inset-bottom), env(safe-area-inset-top). |
/* Example: Handling safe area and dynamic viewport height */
.container {
height: 100dvh;
padding-top: env(safe-area-inset-top);
padding-bottom: env(safe-area-inset-bottom);
padding-left: env(safe-area-inset-left);
padding-right: env(safe-area-inset-right);
}
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.
- 10d ago First seen · 146 lines · 66 tokens per session scan A d31819deb6ea
apple-ecosystem-expert is a skill published in the GitHub repository roedyrustam/vibes-plug (50 stars, last pushed 2d ago), licensed MIT. It adds 66 tokens to every session and 1,799 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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