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 WYRE-AI/msp-claude-plugins --skill invoicinggit clone --depth 1 https://github.com/WYRE-AI/msp-claude-pluginsWrote 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/wyre-ai/msp-claude-plugins/invoicing)<a href="https://agentmods.dev/skills/wyre-ai/msp-claude-plugins/invoicing"><img src="https://agentmods.dev/badge/skills/wyre-ai/msp-claude-plugins/invoicing/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/wyre-ai/msp-claude-plugins/invoicing"><img src="https://agentmods.dev/badge/skills/wyre-ai/msp-claude-plugins/invoicing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Tool Misuse · line 56 Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
- high Tool Misuse · line 169 Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
- medium Data Exfiltration · line 108 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00058 | $0.02571 |
| Opus 5 | $0.00029 | $0.01286 |
| Sonnet 5 | $0.00012 | $0.00514 |
| Haiku 4.5 | $0.00006 | $0.00257 |
Grade A, and why
Alternative Payments Invoicing scanned grade A with 1 finding 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 10d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "https://public-api.alternativepayments.io/invoices?limit=100" \ How it starts
The opening of the file, as written. The whole thing — 285 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Alternative Payments Invoicing
Overview
Invoices are the billing records in Alternative Payments. Each invoice belongs to a customer, carries one or more line items, and has a due date. Once an invoice exists you can fetch a hosted payment link (a URL the customer visits to pay) and a PDF link (a signed download of the invoice document).
Separately, payment requests are standalone hosted payment links that are not tied to a stored invoice — useful for ad-hoc charges and follow-ups.
The key posture: hosted payment links and payment requests let the customer
choose to pay. Generating a link does not charge a card or move money — it
simply produces a URL. This integration never executes a direct charge. See
Alternative Payments API Patterns for why
POST /payments (direct charge) is excluded by design.
Anti-triggers
- The invoice as an accounting document — these invoices are collection
artefacts with no GL coding, tax treatment, or aging; use
xero-invoicesorqbo-invoices. - Whether the invoice was paid and where the money settled — use
alternative-payments-payments. - Charging a card or bank account directly — no such tool exists here by
design; a hosted link is the only collection mechanism, and the reasoning is
in
alternative-payments-api-patterns.
Core Concepts
Invoice Status
| Status | Description | Payable |
|---|---|---|
open |
Issued and awaiting payment | Yes |
paid |
Fully paid | No |
overdue |
Past due_date and still unpaid |
Yes |
archived |
Removed from default lists (destructive) | No |
Archiving uses DELETE /invoices/{id} and is destructive — confirm before running.
Hosted Links vs. Direct Charges
| Mechanism | What it does | Money movement |
|---|---|---|
Payment link (GET /invoices/{id}/payment-link) |
URL for an existing invoice | Customer pays — not the integration |
Payment request (POST /payments/request) |
Standalone hosted link | Customer pays — not the integration |
Direct charge (POST /payments) |
Charges a card/bank | Not exposed |
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.
- 10d ago First seen · 285 lines · 58 tokens per session scan A 4a2eaf1af9c2
Alternative Payments Invoicing is a skill published in the GitHub repository WYRE-AI/msp-claude-plugins (45 stars, last pushed 8d ago), licensed Apache-2.0. It adds 58 tokens to every session and 2,571 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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