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 catalog-managementgit 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/catalog-management)<a href="https://agentmods.dev/skills/revenuecat/play-billing-skills/catalog-management"><img src="https://agentmods.dev/badge/skills/revenuecat/play-billing-skills/catalog-management/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/catalog-management"><img src="https://agentmods.dev/badge/skills/revenuecat/play-billing-skills/catalog-management.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 | $0.00048 | $0.01637 |
| Opus 5 | $0.00024 | $0.00818 |
| Sonnet 5 | $0.00010 | $0.00327 |
| Haiku 4.5 | $0.00005 | $0.00164 |
Grade A, and why
catalog-management 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 — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Catalog Management
Manage Google Play product catalogs at scale through the Android Publisher API. This skill helps you choose between Play Console and API based workflows, wire up the right endpoints for one time products and subscriptions, and keep regional pricing in sync with your source of truth.
Phase 1: Discovery
Confirm the basics before writing catalog code.
- Service account scope. The service account attached to your Google Play project must hold the Financial permission (or the legacy equivalent) on the Google Play Console. Without it,
inappproducts,monetization.onetimeproducts, andmonetization.subscriptionscalls return 403. Verify in Play Console under Users and permissions, then grant app level access to every package you intend to manage. - API product surface. Identify which endpoint family each SKU currently lives under. Products created before the one time product model upgrade live under
inappproducts. Products created through the new service live undermonetization.onetimeproducts. Once migrated, the legacy surface stops serving that product. - Existing catalog shape. List the current catalog with
monetization.onetimeproducts.listandmonetization.subscriptions.list. Record product IDs, base plan IDs, offer IDs, and activation state so you know what you are mutating. - Quota posture. Review quota usage in the Google Cloud Console under APIs and Services > Quotas for the Google Play Android Developer API. The three tiers you depend on are the per minute query limit, the hourly modification limit, and the hourly latency sensitive modification limit.
Phase 2: Plan
Choose the management model that matches your scale.
| Catalog size | Recommended surface | Notes |
|---|---|---|
| Under 100 products, rare changes | Play Console UI | No automation overhead. Manual review before every change. |
| 100 to 10,000 products | batchUpdate with allowMissing=true, latency tolerant |
Chunks of 100 clear the full catalog in minutes. |
| Over 10,000 products | batchUpdate with pacing, latency tolerant |
Add inter batch delay, schedule off peak, run dry runs locally. |
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 · 155 lines · 48 tokens per session scan A 23308e5005f9
catalog-management is a skill published in the GitHub repository RevenueCat/play-billing-skills (53 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 48 tokens to every session and 1,637 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 2026-08-30.
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