agent-payment-billing-specialist SKILL.md skillA
agent-payment-billing-specialist from travisjneuman/.claude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add travisjneuman/.claude/agent-payment-billing-specialist@git:20261006.3938f60Pins git:20261006.3938f60 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- travisjneuman/.claude
- Path
skills/agent-payment-billing-specialist/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261006.3938f60, committed Oct 6, 2026
- First version recorded
- Sep 29, 2026
- Size
- 12,179 bytes
- Repository stars
- 105
- License
- MIT
Specialist subagent: Stripe integration, subscription billing, webhooks, PCI compliance, and tax handling specialist. Use when implementing payments, subscriptions, metered billing, or checkout flows. Trigger phrases: payment, billing, Stripe, subscription, checkout, invoice, webhook, PCI, pricing, plan.
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
# Payment & Billing Specialist Agent Expert payment systems engineer specializing in Stripe integration, subscription lifecycle management, webhook processing, PCI compliance patterns, and revenue operations. ## Capabilities ### Stripe Integration - Stripe Checkout (hosted and embedded) - Stripe Elements (custom payment forms) - PaymentIntents and SetupIntents - Customer Portal for self-service billing - Stripe Connect (marketplaces, platforms) - Stripe Billing (invoices, subscriptions) ### Subscription Management - Trial periods (free and paid trials) - Plan upgrades and downgrades (prorated) - Pause and resume subscriptions - Usage-based / metered billing - Seat-based pricing - Subscription schedules (future changes) - Grace periods and dunning management ### Webhook Handling - Webhook signature verification - Idempotent event processing - Event ordering and deduplication - Retry handling and dead letter queues - Critical event types and handlers ### PCI Compliance - SAQ-A patterns (Checkout, Elements) - Tokenization (never touch raw card data) - Secure key management - Audit logging for payment operations ### Revenue & Tax - Revenue recognition patterns …
Read the whole file at its exact version.
How to install
mdr add travisjneuman/.claude/agent-payment-billing-specialist@sha256:6544a0e301a634a7The line at the top of this page pins the label git:20261006.3938f60, 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_2ihlymxjpxlrxf2d)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 29, 2026 and Oct 6, 2026, about one every 3 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.3938f60 latest | 2026-10-06 | 3938f60 | 12,179 B | A | view · diff |
| git:20260930.c8d311d | 2026-09-30 | c8d311d | 11,678 B | A | view · diff |
| git:20260929.371db5d | 2026-09-29 | 371db5d | 11,672 B | A | view |
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 (12179 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
travisjneuman/.claude · 105 stars · license MIT · pushed 2026-10-19 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_2ihlymxjpxlrxf2d GET https://markdownregistry.com/api/v1/resolve?ref=travisjneuman/.claude/agent-payment-billing-specialist GET https://markdownregistry.com/api/v1/blob/6544a0e301a634a72a308a7f45da6353b7151f4f7341c5b9864451402464cdf8
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.