billing-automation SKILL.md skillA
billing-automation from wshobson/agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wshobson/agents/billing-automation@git:20260522.be57c0bPins git:20260522.be57c0b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wshobson/agents
- Path
plugins/payment-processing/skills/billing-automation/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260522.be57c0b, committed May 22, 2026
- First version recorded
- Oct 17, 2025
- Size
- 1,899 bytes
- Repository stars
- 42,320
- License
- MIT
Build automated billing systems for recurring payments, invoicing, subscription lifecycle, and dunning management. Use when implementing subscription billing, automating invoicing, or managing recurring payment systems.
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
# Billing Automation
Master automated billing systems including recurring billing, invoice generation, dunning management, proration, and tax calculation.
## When to Use This Skill
- Implementing SaaS subscription billing
- Automating invoice generation and delivery
- Managing failed payment recovery (dunning)
- Calculating prorated charges for plan changes
- Handling sales tax, VAT, and GST
- Processing usage-based billing
- Managing billing cycles and renewals
## Core Concepts
### 1. Billing Cycles
**Common Intervals:**
- Monthly (most common for SaaS)
- Annual (discounted long-term)
- Quarterly
- Weekly
- Custom (usage-based, per-seat)
### 2. Subscription States
```
trial → active → past_due → canceled
→ paused → resumed
```
### 3. Dunning Management
Automated process to recover failed payments through:
- Retry schedules
- Customer notifications
- Grace periods
- Account restrictions
### 4. Proration
Adjusting charges when:
- Upgrading/downgrading mid-cycle
- Adding/removing seats
- Changing billing frequency
## Quick Start
```python
from billing import BillingEngine, Subscription
# Initialize billing engine
billing = BillingEngine()
…Read the whole file at its exact version.
How to install
mdr add wshobson/agents/billing-automation@sha256:95b32527f4e18571The line at the top of this page pins the label git:20260522.be57c0b, 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_df4bmzlnwdnzcgkw)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Oct 17, 2025 and May 22, 2026, about one every 72 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260522.be57c0b latest | 2026-05-22 | be57c0b | 1,899 B | A | view · diff |
| git:20260307.47a5dbc | 2026-03-07 | 47a5dbc | 17,106 B | A | view · diff |
| git:20260119.5684887 | 2026-01-19 | 5684887 | 18,341 B | A | view · diff |
| git:20251017.65e5cb0 | 2025-10-17 | 65e5cb0 | 18,334 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 (1899 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
wshobson/agents · 42,320 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_df4bmzlnwdnzcgkw GET https://markdownregistry.com/api/v1/resolve?ref=wshobson/agents/billing-automation GET https://markdownregistry.com/api/v1/blob/95b32527f4e185712a1f9b903e001b623fe01f9bc1ff2beefb13b517b30790c5
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.