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 rshankras/claude-code-apple-skills --skill paywall-generatorgit clone --depth 1 https://github.com/rshankras/claude-code-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/rshankras/claude-code-apple-skills/paywall-generator)<a href="https://agentmods.dev/skills/rshankras/claude-code-apple-skills/paywall-generator"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/paywall-generator/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/rshankras/claude-code-apple-skills/paywall-generator"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/paywall-generator.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 | $0.00035 | $0.01484 |
| Opus 5 | $0.00017 | $0.00742 |
| Sonnet 5 | $0.00007 | $0.00297 |
| Haiku 4.5 | $0.00003 | $0.00148 |
Grade A, and why
paywall-generator 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 6d 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 — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Paywall Generator
Generate a complete StoreKit 2 subscription paywall with modern SwiftUI views, subscription status tracking, and proper purchase handling.
When This Skill Activates
Use this skill when the user:
- Asks to "add subscriptions" or "add paywall"
- Mentions "in-app purchases" or "IAP"
- Wants "StoreKit 2" implementation
- Asks about "subscription management"
- Mentions "premium features" or "pro version"
Paywall Design Principles (Apple's Data)
- Keep sign-up to 3-4 taps. Per Apple's Tech Talk: 61% conversion at 3 taps, 48% at 4 — collapsing to 7% at 9 taps.
- Make the paywall glanceable — value proposition, price, and renewal/trial terms in one view, no scrolling to find the price.
- Show clear renewal and trial terms everywhere you pitch the subscription, not just on the paywall.
- Persistent entry point over pop-ups — a tasteful, always-available subscribe button (plus subscribe/manage in Settings). Pop-ups train users to dismiss.
- Trigger the offer at moments of interest — when the user taps locked content, not on a timer.
- Offer 3-4 duration tiers so users self-select their commitment level.
- Let users experience value first — free trial (works best for known brands), freemium, or content sampling (e.g., N free articles per month).
Pre-Generation Checks
1. Project Context Detection
- Check for existing StoreKit implementations
- Check deployment target (StoreKit 2 requires iOS 15+)
- Look for existing product IDs in codebase
- Identify source file locations
2. Conflict Detection
Search for existing StoreKit:
Glob: **/*Store*.swift, **/*Purchase*.swift, **/*Subscription*.swift
Grep: "import StoreKit" or "Product.products"
If found, ask user:
- Replace existing implementation?
- Extend with additional features?
Apple Docs Reference
StoreKit subscription APIs (iOS 18.4+):
SubscriptionOfferView- New SwiftUI view for merchandising subscriptionssubscriptionStatusTaskmodifier for tracking subscription stateTransaction.currentEntitlements(for:)- per-product entitlement check (iOS 18.4+)RenewalInfoenhancements for expiration reasons
What ships with it
6 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.
- 6d ago First seen · 211 lines · 35 tokens per session scan A a5bbc290df71
paywall-generator is a skill published in the GitHub repository rshankras/claude-code-apple-skills (713 stars, last pushed 1mo ago), licensed MIT. It adds 35 tokens to every session and 1,484 once invoked, about $0.0002 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 2026-09-03.
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