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 Prisma-Labs-Dev/apple-skills --skill higgit clone --depth 1 https://github.com/Prisma-Labs-Dev/apple-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/prisma-labs-dev/apple-skills/hig)<a href="https://agentmods.dev/skills/prisma-labs-dev/apple-skills/hig"><img src="https://agentmods.dev/badge/skills/prisma-labs-dev/apple-skills/hig.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 5.1 | $0.00052 | $0.01646 |
| Opus 5 | $0.00026 | $0.00823 |
| Sonnet 5 | $0.00010 | $0.00329 |
| Haiku 4.5 | $0.00005 | $0.00165 |
Grade A, and why
hig 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 7d 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 — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Human Interface Guidelines Reference
Local greppable copy of Apple's Human Interface Guidelines — an on-demand fact lookup, not design direction.
Use it to answer factual questions: what a system component can do, what Apple calls something, accessibility and ergonomic minimums (44pt hit targets, Dynamic Type behavior, contrast), and conventions App Review actually checks.
Visual design in our repos is the designing model's own taste. Consult the HIG for facts, never for aesthetics — it describes what the system provides and requires, not what your screen should look like.
Downloaded Reference Files
All key HIG documentation is available locally (grep-friendly):
Getting Started
| File | Content | Size |
|---|---|---|
| hig-index.md | Full HIG table of contents | 11KB |
| designing-for-ios.md | iOS design principles | 5KB |
Foundations
| File | Content | Size |
|---|---|---|
| app-icons.md | App icon design guidelines | 14KB |
| color.md | Color usage and system colors | 17KB |
| typography.md | Fonts, text styles, Dynamic Type | 17KB |
| layout.md | Layout principles, safe areas | 21KB |
| materials.md | Materials, blur effects, vibrancy | 14KB |
| motion.md | Animation principles | 9KB |
| accessibility.md | Accessibility best practices | 19KB |
| sf-symbols.md | SF Symbols usage | 21KB |
Patterns
| File | Content | Size |
|---|---|---|
| onboarding.md | Onboarding flows | 6KB |
| modality.md | Modal presentations | 7KB |
| launching.md | App launch experience | 6KB |
| feedback.md | User feedback patterns | 5KB |
| playing-haptics.md | Haptic feedback | 10KB |
| searching.md | Search patterns | 7KB |
| settings.md | Settings patterns | 7KB |
What ships with it
50 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.
- accessibility.md 27 KB
- accessibility.videos.md 1.8 KB
- action-sheets.md 6.1 KB
- activity-views.md 8.8 KB
- alerts.md 12 KB
- alerts.videos.md 2.0 KB
- app-icons.md 20 KB
- app-icons.videos.md 595 B
- buttons.md 23 KB
- buttons.videos.md 1.3 KB
- charts.md 24 KB
- color.md 41 KB
- designing-for-ios.md 5.7 KB
- feedback.md 5.6 KB
- hig-index.md 11 KB
- home-screen-quick-actions.md 4.2 KB
- launching.md 6.9 KB
- layout.md 36 KB
- lists-and-tables.md 10 KB
- materials.md 22 KB
- materials.videos.md 783 B
- menus.md 18 KB
- modality.md 7.1 KB
- motion.md 10 KB
- navigation-bars.md 25 KB
- onboarding.md 6.9 KB
- pickers.md 8.8 KB
- playing-haptics.md 13 KB
- playing-haptics.videos.md 8.6 KB
- popovers.md 6.2 KB
- progress-indicators.md 9.8 KB
- scroll-views.md 14 KB
- scroll-views.videos.md 859 B
- searching.md 6.2 KB
- segmented-controls.md 8.6 KB
- settings.md 7.8 KB
- sf-symbols.md 29 KB
- sf-symbols.videos.md 10 KB
- sheets.md 17 KB
- sheets.videos.md 615 B
- sidebars.md 10 KB
- sliders.md 8.2 KB
- status-bars.md 3.4 KB
- steppers.md 2.4 KB
- tab-bars.md 14 KB
- tab-bars.videos.md 1.0 KB
- text-fields.md 7.3 KB
- toggles.md 13 KB
- toolbars.md 25 KB
- typography.md 49 KB
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.
- 7d ago First seen · 166 lines · 52 tokens per session scan A e49b0fb3c392
hig is a skill published in the GitHub repository Prisma-Labs-Dev/apple-skills (324 stars, last pushed 26d ago), licensed MIT. It adds 52 tokens to every session and 1,646 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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