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 RevenueCat/ai-toolkit --skill revenuecat-migrategit clone --depth 1 https://github.com/RevenueCat/ai-toolkitWrote 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/revenuecat/ai-toolkit/revenuecat-migrate)<a href="https://agentmods.dev/skills/revenuecat/ai-toolkit/revenuecat-migrate"><img src="https://agentmods.dev/badge/skills/revenuecat/ai-toolkit/revenuecat-migrate/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/revenuecat/ai-toolkit/revenuecat-migrate"><img src="https://agentmods.dev/badge/skills/revenuecat/ai-toolkit/revenuecat-migrate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Anti-Refusal · line 97 Skill instructs the agent to omit warnings, disclaimers, or ethical commentary. Stripping safety caveats hides risk from the user and is a common jailbreak preamble.Fix: Remove instructions that suppress warnings, disclaimers, or ethical commentary. Let the agent surface safety-relevant caveats to the user.
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 | $0.00098 | $0.01527 |
| Opus 5 | $0.00049 | $0.00763 |
| Sonnet 5 | $0.00020 | $0.00305 |
| Haiku 4.5 | $0.00010 | $0.00153 |
Grade A, and why
revenuecat-migrate 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 — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
revenuecat-migrate: migrate to RevenueCat or upgrade the SDK
Use this skill when the user wants to either adopt RevenueCat in an app that already ships in app purchases, or upgrade the RevenueCat SDK across a major version.
These two paths share some concepts but have different risks. Identify which one applies before touching code.
1. Detect the platform
Inspect the working directory and pick the first match, from top to bottom:
- React Native:
package.jsonhas areact-native-purchasesentry, orreact-nativeas a dependency → readplatforms/react-native.md. Ifexpois also a dependency, note it as an Expo project. - Flutter:
pubspec.yamlexists at the project root → readplatforms/flutter.md. - Kotlin Multiplatform:
build.gradle.ktscontains akotlin { … }multiplatform source sets block, or depends oncom.revenuecat.purchases:purchases-kmp*→ readplatforms/kmp.md. - Android (native):
build.gradle(.kts)appliescom.android.application(and is not KMP) → readplatforms/android.md. - iOS (native):
Package.swift,*.xcodeproj,*.xcworkspace, orPodfileat the project root → readplatforms/ios.md.
If several match (e.g. an ios/ folder inside a Flutter project), pick the outermost project, the one that owns the build. If still ambiguous, ask the user which platform they want to configure.
2. Identify the migration path
Ask the user (or infer from the codebase):
- Path A: adoption. The app already has working in app purchases implemented directly against StoreKit or Google Play Billing. RevenueCat is being added on top.
- Path B: version upgrade. The app already uses RevenueCat, and the user wants to bump from one major version to the next (e.g. v4 to v5, v7 to v8).
Both paths can happen at once (e.g. adopt RC today on the latest major version). Run Path A first, then Path B if needed.
3. Shared concepts
Observer mode (Path A)
Observer mode is the key lever for adopting RevenueCat without rewriting purchase code. The SDK observes transactions that your existing StoreKit / Billing code processes, sends them to the RevenueCat backend for validation, and updates subscriber state, but does not initiate or finish the transactions. Your existing purchase UI, receipt validation, and transaction finishing stay in place.
What ships with it
5 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.
- 11d ago First seen · 101 lines · 98 tokens per session scan A 990de30e915d
revenuecat-migrate is a skill published in the GitHub repository RevenueCat/ai-toolkit (65 stars, last pushed 9d ago), licensed MIT. It adds 98 tokens to every session and 1,527 once invoked, about $0.0005 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.
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.