Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/rahulkeerthi/expo-toolkitnpx agentmods add skills/rahulkeerthi/expo-toolkit/integrating-revenuecatWrote 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/rahulkeerthi/expo-toolkit/integrating-revenuecat)<a href="https://agentmods.dev/skills/rahulkeerthi/expo-toolkit/integrating-revenuecat"><img src="https://agentmods.dev/badge/skills/rahulkeerthi/expo-toolkit/integrating-revenuecat/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/rahulkeerthi/expo-toolkit/integrating-revenuecat"><img src="https://agentmods.dev/badge/skills/rahulkeerthi/expo-toolkit/integrating-revenuecat.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00037 | $0.03864 |
| Opus 5 | $0.00018 | $0.01932 |
| Sonnet 5 | $0.00007 | $0.00773 |
| Haiku 4.5 | $0.00004 | $0.00386 |
Grade A, and why
integrating-revenuecat 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 11d 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 — 679 lines — stays where its author put it; the contents beside it link to each section on GitHub.
RevenueCat Integration Reference
Plugin Tools
Extract product IDs and entitlements from your codebase:
# Scan codebase for RevenueCat identifiers
cd /path/to/expo-toolkit && npm run extract-product-ids
# Or specify directory
node tools/extract-product-ids.js /path/to/your/app
node tools/extract-product-ids.js /path/to/your/app --json
This extracts:
- Product IDs (e.g.,
com.yourapp.premium.monthly) - Entitlement names (e.g.,
premium) - Offering identifiers
- Package types (
$rc_monthly,$rc_annual, etc.)
Use the output to cross-reference with RevenueCat Dashboard.
RevenueCat Concepts
Hierarchy
RevenueCat Account
└── Project (your app)
└── Apps (iOS, Android, etc.)
└── Products (from App Store Connect / Play Console)
└── Offerings (groups of products)
└── Packages (individual purchasable items)
└── Entitlements (what the user gets)
Key Terms
| Term | Description |
|---|---|
| Product | An item in App Store Connect or Play Console |
| Entitlement | A feature/access level users can unlock |
| Offering | A group of packages to present to users |
| Package | A specific purchasable item with a product |
| Customer | A user identified by app user ID |
SDK Installation
For Expo (Managed Workflow)
npx expo install react-native-purchases
For Expo (Prebuild/Bare)
npm install react-native-purchases
npx expo prebuild
Plugin Configuration
Add to app.config.js or app.json:
{
"expo": {
"plugins": [
[
"react-native-purchases",
{
"REVENUECAT_API_KEY": "appl_xxxxxxxx", // iOS key
// Or for Android:
// "REVENUECAT_API_KEY": "goog_xxxxxxxx"
}
]
]
}
}
Multi-platform setup:
plugins: [
[
"react-native-purchases",
{
"REVENUECAT_API_KEY_IOS": "appl_xxxxxxxx",
"REVENUECAT_API_KEY_ANDROID": "goog_xxxxxxxx"
}
]
]
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.
- 11d ago First seen · 679 lines · 37 tokens per session scan A ea1fdb592004
integrating-revenuecat is a skill published in the GitHub repository rahulkeerthi/expo-toolkit (5 stars, last pushed 4mo ago), licensed MIT. It adds 37 tokens to every session and 3,864 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 2026-08-31.
Other skills, from other repositories
play-billing-library-version-upgrade
Use this skill when upgrading or migrating an Android project from any legacy Google Play Billing Library (PBL) version to the latest stable version of PBL.
asc-revenuecat-catalog-sync
Reconcile App Store Connect subscriptions and in-app purchases with RevenueCat products, entitlements, offerings, and packages using asc and RevenueCat MCP. Use when setting up or syncing subscription catalogs across ASC and RevenueCat.
axiom-implement-iap
Use when the user wants to add in-app purchases, implement StoreKit 2, or set up subscriptions.
google-play
Google Play Developer API (Android Publisher) integration with managed OAuth. Manage apps, subscriptions, in-app purchases, and reviews. Use this skill when users want to interact with Google Play Console programmatically. For other third party apps, use the api-gateway skill (https://clawhub.ai/byungkyu/api-gateway).
subscription-lifecycle
Generates StoreKit 2 subscription lifecycle management — grace periods, billing retry, offer codes, win-back offers, upgrade/downgrade paths, and subscription status monitoring. Use when user needs post-purchase subscription state handling beyond the initial paywall.
subscription-offers
Generates StoreKit 2 code for all subscription offer types — introductory, promotional, offer codes, and win-back. Includes eligibility checks, offer presentation, and the preferredSubscriptionOffer modifier. Use when adding subscription offers, free trials, or promotional pricing.