software-payments SKILL.md skillA
software-payments from vasilyu1983/ai-agents-public is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vasilyu1983/ai-agents-public/software-payments@v1.3Pins v1.3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vasilyu1983/ai-agents-public
- Path
skills/universal/software-payments/SKILL.md- Versions recorded
- 1
- Latest version
- v1.3, committed Oct 5, 2026
- Size
- 17,282 bytes
- Repository stars
- 101
- License
- MIT
Designs production payment and billing systems. Use when implementing Stripe, Paddle, Adyen, subscriptions, tax, marketplaces, or mobile purchase flows.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Payments & Billing Engineering Use this skill to design, implement, and debug production payment integrations: checkout flows, subscription lifecycle handling, billing portals, entitlement gating, webhooks, regional pricing, and payment-testing strategy. ## Quick Reference | Need | Default | Deviation | Reference | |------|---------|-----------|-----------| | Standard SaaS subscription checkout | Stripe Checkout or Payment Links | Use Payment Element plus Express Checkout Element when branded custom UI is a hard requirement | [references/stripe-patterns.md](references/stripe-patterns.md) | | Merchant of record (managed tax/seller-of-record) | Paddle or LemonSqueezy | Evaluate Stripe Managed Payments after checking seller location, product tax codes, account eligibility and supported surfaces at its eligibility page | [references/platform-comparison.md](references/platform-comparison.md) | | High-volume or enterprise multi-method processing | Adyen | — | [references/platform-comparison.md](references/platform-comparison.md) | …
Read the whole file at its exact version.
How to install
mdr add vasilyu1983/ai-agents-public/software-payments@sha256:ae1dd00dbeaefe49The line at the top of this page pins the label v1.3, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_f5cjmmrday27k5gr)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 5, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17282 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
vasilyu1983/ai-agents-public · 101 stars · license MIT · pushed 2026-10-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_f5cjmmrday27k5gr GET https://markdownregistry.com/api/v1/resolve?ref=vasilyu1983/ai-agents-public/software-payments GET https://markdownregistry.com/api/v1/blob/ae1dd00dbeaefe4959719bf3e772d8c3866ae01a84d6bb5ec6596f4b87dded1f
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.