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 rc-subscription-statesgit 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/rc-subscription-states)<a href="https://agentmods.dev/skills/revenuecat/ai-toolkit/rc-subscription-states"><img src="https://agentmods.dev/badge/skills/revenuecat/ai-toolkit/rc-subscription-states/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/rc-subscription-states"><img src="https://agentmods.dev/badge/skills/revenuecat/ai-toolkit/rc-subscription-states.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- 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 | $0.00057 | $0.01425 |
| Opus 5 | $0.00028 | $0.00713 |
| Sonnet 5 | $0.00011 | $0.00285 |
| Haiku 4.5 | $0.00006 | $0.00143 |
Grade A, and why
rc-subscription-states 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 12d 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 — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Subscription States
Decide whether a user has access, and drive state aware UI, using CustomerInfo and EntitlementInfo on Android.
Phase 1: Discover
Confirm what you are actually checking before you write code.
- Which entitlement identifier gates the feature? (for example
pro_access) - Do you need a plain access boolean, or do you also need to explain why the user has or lacks access (billing issue, canceled but still paid, paused)?
- Do you need the cached value (fast, possibly stale) or a freshly fetched value (server authoritative)?
- Are you refreshing UI once on launch, or reacting to live changes (purchase, restore, background refresh)?
If you only need access on/off, you only need isActive. Everything else is optional context.
Phase 2: Plan
Google's seven states versus RevenueCat's boolean
Rolling your own tracker with the Google Play Developer API means mapping seven subscription states and deciding which grant access.
| Google state | Grants access? |
|---|---|
| ACTIVE | yes |
| IN_GRACE_PERIOD | yes |
CANCELED (before expirationDate) |
yes |
| ON_HOLD | no |
| PAUSED | no |
| EXPIRED | no |
| PENDING | no |
RevenueCat computes this on the backend from the Google SubscriptionPurchaseV2 resource and exposes the result as one field: EntitlementInfo.isActive. You read a boolean instead of implementing the state machine.
What to read, and when
| Need | Field |
|---|---|
| Does the user have access right now? | entitlement.isActive |
| Will the subscription renew at period end? | entitlement.willRenew |
| When does paid access end? | entitlement.expirationDate |
| Is this a trial, intro, prepaid, or normal period? | entitlement.periodType |
| Is there a payment problem? | entitlement.billingIssueDetectedAt |
| Has the user canceled but still has time left? | entitlement.unsubscribeDetectedAt |
| Which store issued the entitlement? | entitlement.store |
Decision rules
- Gate features on
isActive == true. Nothing else. - Use
billingIssueDetectedAt != nullto show a fix payment prompt. - Use
unsubscribeDetectedAt != nullwithexpirationDateto show a renewal reminder while access is still valid. - Use
!willRenew(when no billing issue and no explicit cancel timestamp) to show a non renewing notice.
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.
- 12d ago First seen · 168 lines · 57 tokens per session scan A 85ef9ba76629
rc-subscription-states is a skill published in the GitHub repository RevenueCat/ai-toolkit (65 stars, last pushed 10d ago), licensed MIT. It adds 57 tokens to every session and 1,425 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.
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