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 subscription-offersgit 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/subscription-offers)<a href="https://agentmods.dev/skills/rshankras/claude-code-apple-skills/subscription-offers"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/subscription-offers/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/subscription-offers"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/subscription-offers.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 | $0.00055 | $0.02226 |
| Opus 5.5 | $0.00022 | $0.00890 |
| Sonnet 5.5 | $0.00011 | $0.00445 |
| Haiku 4.5 | $0.00006 | $0.00223 |
Grade A, and why
subscription-offers 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 1mo 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 — 235 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Subscription Offers Generator
Generate complete StoreKit 2 implementation for all four subscription offer types with eligibility verification, offer presentation, and transaction handling.
When This Skill Activates
Use this skill when the user:
- Asks to "add subscription offers" or "set up free trial"
- Mentions "introductory offer", "promotional offer", or "offer codes"
- Wants "StoreKit 2 offers" implementation
- Asks about "subscription pricing" or "discounted subscription"
- Mentions "preferredSubscriptionOffer" or "eligibility check"
Pre-Generation Checks
1. Project Context Detection
- Check for existing StoreKit implementations (
import StoreKit) - Check deployment target (iOS 16.4+ for
SubscriptionStoreViewoffers, iOS 15+ for manual) - Look for existing product/subscription group IDs
- Identify if
paywall-generatorwas already used
2. Conflict Detection
Glob: **/*Offer*.swift, **/*Eligibility*.swift
Grep: "introductoryOffer" or "promotionalOffers" or "winBackOffers"
If existing offer code found, ask:
- Extend with additional offer types?
- Replace existing implementation?
Offer Types Reference
1. Introductory Offers
- Who: New subscribers who haven't previously subscribed
- Types: Free trial, pay-as-you-go, pay-up-front
- Limit: One per subscription group per Apple ID
- StoreKit 2:
product.subscription?.introductoryOffer
2. Promotional Offers
- Who: Current or lapsed subscribers. Baseline eligibility is deliberately broad — any current or lapsed subscriber of any subscription in the app, even mid-intro — so layer YOUR business rules on top
- Types: Free, pay-as-you-go, pay-up-front (pay-up-front prices are deliberately NOT price-validated — this is what enables bundle-style pricing)
- Limit: Up to 10 active offers per subscription
- Requires: Server-side signature generation — sign server-side only; signatures are valid 24 hours, so generate just before display
- StoreKit 2:
product.subscription?.promotionalOffers - Attribution: identify redemptions by
offerType(1 = introductory, 2 = promotional, 3 = offer code) +offerIdentifier
What ships with it
1 file 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.
- 1mo ago First seen · 235 lines · 55 tokens per session scan A 48406c4171bb
subscription-offers is a skill published in the GitHub repository rshankras/claude-code-apple-skills (828 stars, last pushed 3mo ago), licensed MIT. It adds 55 tokens to every session and 2,226 once invoked, about $0.0002 per session on Opus 5.5. 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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Specialist subagent: App store submissions, mobile CI/CD, ASO, code signing, and beta distribution specialist. Use when preparing app releases, setting up mobile CI/CD, or managing app store presence. Trigger phrases: app store, Play Store, TestFlight, release, code signing, provisioning profile, Fastlane, ASO, beta…