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/play-billing-skills --skill cancellations-pauses-winbackgit clone --depth 1 https://github.com/RevenueCat/play-billing-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/revenuecat/play-billing-skills/cancellations-pauses-winback)<a href="https://agentmods.dev/skills/revenuecat/play-billing-skills/cancellations-pauses-winback"><img src="https://agentmods.dev/badge/skills/revenuecat/play-billing-skills/cancellations-pauses-winback/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/play-billing-skills/cancellations-pauses-winback"><img src="https://agentmods.dev/badge/skills/revenuecat/play-billing-skills/cancellations-pauses-winback.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 | $0.00054 | $0.02173 |
| Opus 5 | $0.00027 | $0.01086 |
| Sonnet 5 | $0.00011 | $0.00435 |
| Haiku 4.5 | $0.00005 | $0.00217 |
Grade A, and why
cancellations-pauses-winback 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 13d 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 — 224 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cancellations, Pauses, and Winback
A subscription can end in several ways, and each one has a different effect on user access, entitlement records, and recovery options. Use this skill when you are wiring up any end of life or pause flow for a Google Play subscription: user cancellation, developer cancellation, system cancellation after payment failure, pause, resume, restore, resubscribe, deferral, or revocation.
Phase 1: Identify the Scenario
Before writing any code, identify which of the following you are handling. The later phases branch on this choice.
- The user is canceling through Play (silent to your app, signaled by RTDN).
- You are canceling from your backend on the user's behalf or for your own reasons.
- Google canceled after exhausting grace period and account hold.
- The user is pausing, resuming, or a pause is scheduled.
- The user is restoring a cancellation before expiry, or resubscribing after expiry.
- You are deferring billing as goodwill or compensation.
- You are revoking immediately due to fraud or a terms violation.
Phase 2: Plan by Cancellation Type
Each cancellation type behaves differently with respect to access, refunds, RTDN signals, and recovery. Plan the entitlement logic using the matrix below before you touch the API.
Cancellation type matrix
| Type | API or Trigger | Access After | Refund | Primary RTDN | canceledStateContext.cancellationReason |
|---|---|---|---|---|---|
| User initiated | Play Subscriptions Center | Until expiryTime |
None (prorated not issued) | SUBSCRIPTION_CANCELED |
USER_CANCELED |
| Developer, user requested | purchases.subscriptionsv2.cancel with USER_REQUESTED_STOP_RENEWAL |
Until expiryTime |
None | SUBSCRIPTION_CANCELED |
DEVELOPER_CANCELED |
| Developer, your reason | purchases.subscriptionsv2.cancel with DEVELOPER_REQUESTED_STOP_PAYMENTS |
Until expiryTime |
None | SUBSCRIPTION_CANCELED |
DEVELOPER_CANCELED |
| System, payment failure | Automatic after grace + account hold | None from the moment account hold expires | None | SUBSCRIPTION_CANCELED |
SYSTEM_CANCELED |
| Replacement (plan change) | Plan change flow | Handled by new token | N/A | SUBSCRIPTION_CANCELED on old token |
REPLACED |
| Revoke | purchases.subscriptionsv2.revoke |
Immediately terminated | Prorated refund issued by Google | SUBSCRIPTION_REVOKED |
n/a (terminated) |
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.
- 13d ago First seen · 224 lines · 54 tokens per session scan A e47d338da34f
cancellations-pauses-winback is a skill published in the GitHub repository RevenueCat/play-billing-skills (53 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 54 tokens to every session and 2,173 once invoked, about $0.0003 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.