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 ehmo/platform-design-skills --skill visionosgit clone --depth 1 https://github.com/ehmo/platform-design-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/ehmo/platform-design-skills/visionos)<a href="https://agentmods.dev/skills/ehmo/platform-design-skills/visionos"><img src="https://agentmods.dev/badge/skills/ehmo/platform-design-skills/visionos.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 | $0.00051 | $0.04719 |
| Opus 5 | $0.00026 | $0.02360 |
| Sonnet 5 | $0.00010 | $0.00944 |
| Haiku 4.5 | $0.00005 | $0.00472 |
Grade A, and why
visionos-design-guidelines 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 8d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- visionos-design-guidelines — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 376 lines — stays where its author put it; the contents beside it link to each section on GitHub.
visionOS Design Guidelines
Comprehensive design rules for Apple Vision Pro based on Apple Human Interface Guidelines. These rules ensure spatial computing apps are comfortable, intuitive, and consistent with platform conventions.
1. Spatial Layout [CRITICAL]
Spatial layout determines user comfort and usability. Poor placement causes neck strain, disorientation, or inaccessible content.
Rules
SL-01: Center content in the field of view. Place primary windows and content directly ahead of the user at eye level. The comfortable vertical viewing range is approximately 30 degrees above and below eye level. Content outside this range requires head movement and causes fatigue.
SL-02: Maintain comfortable distance. Position content at a natural distance from the user, typically 1-2 meters for windows. Content too close feels invasive; content too far is hard to read. The system default placement is approximately 1.5 meters. Respect this unless there is a strong reason to override.
SL-03: Never place content behind the user. Users cannot see content behind them without physically turning around. All UI elements must appear within the forward-facing hemisphere. If content must surround the user, provide clear navigation to rotate or reposition.
SL-04: Respect personal space. Do not place 3D objects or windows closer than arm's length (~0.5 meters) from the user's head. Objects inside personal space cause discomfort and a feeling of intrusion. Direct-touch interactions are the exception, where objects are intentionally within reach.
SL-05: Use Z-depth to establish hierarchy. Elements closer to the user appear more prominent and interactive. Push secondary or background content further back. Use subtle depth offsets (a few centimeters) between layered elements rather than dramatic separation that fragments the interface.
SL-06: Manage multiple windows thoughtfully. When displaying multiple windows, arrange them in a gentle arc around the user rather than stacking or overlapping. Each window should be individually repositionable. Avoid spawning too many simultaneous windows that overwhelm the space.
What ships with it
3 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.
- 8d ago First seen · 376 lines · 51 tokens per session scan A 13c206084fb5
visionos-design-guidelines is a skill published in the GitHub repository ehmo/platform-design-skills (523 stars, last pushed 5mo ago), licensed MIT. It adds 51 tokens to every session and 4,719 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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