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 andrewsrigom/agent-skills --skill stripe-checkout-and-pricing-model-defaultsgit clone --depth 1 https://github.com/andrewsrigom/agent-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/andrewsrigom/agent-skills/stripe-checkout-and-pricing-model-defaults)<a href="https://agentmods.dev/skills/andrewsrigom/agent-skills/stripe-checkout-and-pricing-model-defaults"><img src="https://agentmods.dev/badge/skills/andrewsrigom/agent-skills/stripe-checkout-and-pricing-model-defaults/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/andrewsrigom/agent-skills/stripe-checkout-and-pricing-model-defaults"><img src="https://agentmods.dev/badge/skills/andrewsrigom/agent-skills/stripe-checkout-and-pricing-model-defaults.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 | $0.00053 | $0.00896 |
| Opus 5 | $0.00026 | $0.00448 |
| Sonnet 5 | $0.00011 | $0.00179 |
| Haiku 4.5 | $0.00005 | $0.00090 |
Grade A, and why
stripe-checkout-and-pricing-model-defaults 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 — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Stripe Checkout And Pricing Model Defaults
Use this skill when the task is about pricing-model setup or Checkout implementation choices.
Scope
- products and prices as the billing catalog
- recurring pricing model selection
- Checkout Sessions as the default integration API
- hosted checkout as the default first implementation
- checkout success and cancel flow boundaries
Routing cues
- create products or prices, pick flat-rate vs per-seat vs usage-based pricing, set up Checkout, create checkout sessions, enable promo codes, collect tax, or decide between hosted checkout and more custom payment UI -> use this skill
- once the task becomes mostly about webhook processing, event verification, or post-checkout state sync -> use
stripe-webhook-first-billing-state - once the task becomes mostly about subscription lifecycle semantics, retries, proration, or entitlements -> use
stripe-subscriptions-lifecycle-and-entitlements - once the task is really about self-serve plan management after checkout -> use
stripe-customer-portal-defaults
Default path
- Model the catalog with Products and Prices first.
- Give durable prices stable lookup keys and keep price IDs server-controlled.
- Prefer hosted Checkout Sessions for the first production implementation.
- Create Checkout Sessions on the server using existing price IDs rather than trusting client-supplied amounts.
- Use success and cancel URLs for navigation only.
- Handle provisioning, subscription activation, and internal billing-state updates in webhook handlers.
When to deviate
- Use a more custom payment UI only when hosted checkout is a proven product mismatch.
- Create dynamic prices only when the business model truly requires per-quote or highly variable pricing.
- Reach for usage-based pricing only when usage measurement is part of the actual business model, not because it sounds flexible.
- Keep one-time and recurring purchases separate unless a combined cart is a real requirement.
What ships with it
1 file 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.
- 12d ago First seen · 92 lines · 53 tokens per session scan A b26887d9d5a7
stripe-checkout-and-pricing-model-defaults is a skill published in the GitHub repository andrewsrigom/agent-skills (2 stars, last pushed 5mo ago), licensed MIT. It adds 53 tokens to every session and 896 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 2026-08-31.
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