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.
git clone --depth 1 https://github.com/markdavidgan/apple-dev-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/commands/markdavidgan/apple-dev-skills/arch-diagram)<a href="https://agentmods.dev/commands/markdavidgan/apple-dev-skills/arch-diagram"><img src="https://agentmods.dev/badge/commands/markdavidgan/apple-dev-skills/arch-diagram.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 | $0.00014 | $0.00056 |
| Opus 5 | $0.00007 | $0.00028 |
| Sonnet 5 | $0.00003 | $0.00011 |
| Haiku 4.5 | $0.00001 | $0.00006 |
Grade A, and why
arch-diagram 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.
What it actually says
Run the apple-architecture-diagram skill on $ARGUMENTS.
Produces a WWDC-Keynote-ready, self-contained HTML architecture diagram.
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 · 9 lines · 14 tokens per session scan A 0cf7daef96ff
arch-diagram is a command published in the GitHub repository markdavidgan/apple-dev-skills (5 stars, last pushed 9d ago), licensed MIT. It adds 14 tokens to every session and 56 once invoked, about $0.0001 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.
Other commands, from other repositories
audit-accessibility
Audit a product against real assistive technology use, prioritised by who is blocked.
build-website
Build a small site with the simplest stack that fits, fast by default and editable afterwards.
onboarding-flow
Design an onboarding flow that gets a user to first value quickly, cutting everything that delays it.
review-accessibility
Review an interface for accessibility barriers, prioritised by who is blocked rather than by rule count.
arc-ui
Add theme system, reusable components, screen layouts, and mobile UX design to a React Native Expo project. Use after arc-scaffold to build the visual layer. Trigger when the user wants to add a theme, dark mode, UI components, buttons, inputs, screen layouts, design system, or visual polish to their React Native app.
ux-motion
Animation and motion rubric. Checks timing, easing, meaning, reduced-motion compliance, and performance for every animation on a surface. Triggers on "motion check", "are the animations good", or "fix the motion". Use when auditing motion or animations, checking durations / easing / reduced-motion / performance, is…