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 appeeky/stripe-skills --skill mrr-arr-snapshotgit clone --depth 1 https://github.com/appeeky/stripe-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/appeeky/stripe-skills/mrr-arr-snapshot)<a href="https://agentmods.dev/skills/appeeky/stripe-skills/mrr-arr-snapshot"><img src="https://agentmods.dev/badge/skills/appeeky/stripe-skills/mrr-arr-snapshot/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/appeeky/stripe-skills/mrr-arr-snapshot"><img src="https://agentmods.dev/badge/skills/appeeky/stripe-skills/mrr-arr-snapshot.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 | $0.00081 | $0.00585 |
| Opus 5 | $0.00041 | $0.00293 |
| Sonnet 5 | $0.00016 | $0.00117 |
| Haiku 4.5 | $0.00008 | $0.00059 |
Grade A, and why
mrr-arr-snapshot 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.
What it actually says
MRR & ARR Snapshot
Calculate normalized monthly recurring revenue from Stripe subscription data.
Stripe MCP Setup
Requires Stripe MCP connected via OAuth or restricted key. Docs: https://docs.stripe.com/mcp
GetMcpToolswithserver: "user-Stripe"(orplugin-stripe-stripe) before any call- Prefer
stripe_api_search→stripe_api_details→stripe_api_readfor list/retrieve - Always paginate —
limit: 100, followhas_morewithstarting_after - Amounts are in cents unless noted
- Never expose secret keys in output
Workflow
- List all
activesubscriptions — paginate untilhas_more: falseGetSubscriptionswithexpand: ["data.items.data.price"],status: active,limit: 100
- Optionally include
past_duein "MRR at risk" (label separately) - For each subscription item, normalize to monthly MRR:
| Interval | Monthly MRR per unit |
|---|---|
| month | unit_amount × quantity / interval_count |
| year | unit_amount × quantity / (12 × interval_count) |
| week | unit_amount × quantity × 52 / (12 × interval_count) |
- Group by
price.idand product name - Sum → MRR; multiply by 12 → ARR
Output Template
MRR Snapshot (as of [date])
Active subscriptions: [N]
MRR (active only): $[X]
ARR: $[X × 12]
Past due MRR at risk: $[Y] ([n] subs) — optional
By plan:
| Subs | Plan | Unit price | MRR |
|------|------|------------|-----|
Notes:
- [annual plans normalized to monthly]
- [multi-item subs counted once per sub, sum line items]
Pitfalls
- Search API caps at 100 — use
GetSubscriptionswith pagination trialingsubs: exclude from paid MRR unless user asks for "pipeline MRR"- Multi-currency: report per currency or convert with stated FX rate
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 · 62 lines · 81 tokens per session scan A 8d202353f01a
mrr-arr-snapshot is a skill published in the GitHub repository appeeky/stripe-skills (5 stars, last pushed 1mo ago), licensed MIT. It adds 81 tokens to every session and 585 once invoked, about $0.0004 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.
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