prepayment-check

prepayment-check is a skill for Claude Code from theYahia/WWmcp. It costs 29 tokens per session (641 once invoked), scanned A, original, MIT.

A prepayment check for a company or other business partner using its tax identification number. It examines bankruptcy, court cases, licences, registration status, and the person signing the contract.

In plain words
What is it for?
Use it before an advance payment to decide whether to pay upfront, pay after delivery, or not pay, with reasons based on company records.
Why use it?
It helps identify reasons not to send money before goods or services are delivered. The result separates serious warning signs, such as active bankruptcy, from ordinary business activity.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Good fit Use it before an advance payment to decide whether to pay upfront, pay after delivery, or not pay, with reasons based on company records.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/theyahia/wwmcp/prepayment-check
Install

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.

Any agent
npx skills add theYahia/WWmcp --skill prepayment-check
Clone the repo
git clone --depth 1 https://github.com/theYahia/WWmcp

Made for: Claude Code.

Wrote 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.

agentmods badge for prepayment-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/theyahia/wwmcp/prepayment-check/github.svg)](https://agentmods.dev/skills/theyahia/wwmcp/prepayment-check)
Your own site
<a href="https://agentmods.dev/skills/theyahia/wwmcp/prepayment-check"><img src="https://agentmods.dev/badge/skills/theyahia/wwmcp/prepayment-check/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.

agentmods 80×15 button for prepayment-check

Your own site · 80×15
<a href="https://agentmods.dev/skills/theyahia/wwmcp/prepayment-check"><img src="https://agentmods.dev/badge/skills/theyahia/wwmcp/prepayment-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 641 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00029 $0.00641
Opus 5 $0.00015 $0.00320
Sonnet 5 $0.00006 $0.00128
Haiku 4.5 $0.00003 $0.00064

Measured 4d ago against content hash 9929eeffb2e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

prepayment-check 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 4d 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.

servers/kontur-focus/.claude/skills/prepayment-check/SKILL.md · 54 lines

What it actually says

/prepayment-check — Проверка перед переводом денег

Алгоритм

  1. Вызови get_bankruptcy_info с inn. Это первый и главный стоп-фактор: активное банкротное производство означает «не платить», остальное можно не читать.
  2. Вызови get_arbitration_cases с inn. Смотри не только количество, но и роль: компания-ответчик по денежным искам — риск; истец — обычная хозяйственная активность.
  3. Вызови get_company_brief с inn — краткий отчёт со сводкой рисков от Контур.Фокуса.
  4. Если сделка требует допуска (строительство, медицина, перевозки, образование, алкоголь), вызови get_licenses с inn и проверь, что нужная лицензия действует на дату сделки, а не «была когда-то».
  5. Вызови get_company_details с inn — убедись, что компания действующая, а не в ликвидации, и что подписант в ЕГРЮЛ совпадает с тем, кто подписывает договор.
  6. Вынеси вердикт: ПЛАТИТЬ / ПЛАТИТЬ ПО ФАКТУ / НЕ ПЛАТИТЬ — с конкретными причинами.

Формат ответа

## Проверка перед предоплатой: ООО «Ромашка», ИНН 7707083893

| Проверка | Результат |
|----------|-----------|
| Банкротство | производств нет |
| Арбитраж | 4 дела, ответчик по 3 на 12,4 млн ₽ |
| Статус в ЕГРЮЛ | действующая |
| Лицензии | СРО строительство — действует до 2027 |

**Вердикт**: ПЛАТИТЬ ПО ФАКТУ
**Причина**: 3 денежных иска к компании за 12 месяцев — предоплату не давать,
оплата по закрытым этапам.

Важно

  • Не подменяй вердикт вежливостью. Если есть банкротство — говори «не платить» прямо.
  • Утверждай только то, что вернули инструменты. Нет данных по лицензиям — так и пиши «данных нет», а не «лицензий нет».
  • ИНН юрлица 10 цифр, ИП — 12. Если пользователь дал ОГРН или название, сначала вызови search_company и получи ИНН.

Примеры

/prepayment-check 7707083893
/prepayment-check ИНН 500100732259 — аванс 2 млн
Changes

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.

  1. 4d ago First seen · 54 lines · 29 tokens per session scan A 9929eeffb2e8

Subscribe to this mod's changes

prepayment-check is a skill published in the GitHub repository theYahia/WWmcp (29 stars, last pushed 3d ago), licensed MIT. It adds 29 tokens to every session and 641 once invoked, about $0.0001 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 2026-09-06.

Related

Other skills, from other repositories

okx-cex-portfolio

This skill should be used when the user asks about 'account balance', 'how much USDT do I have', 'my funding account', 'show my positions', 'open positions', 'position P&L', 'unrealized PnL', 'closed positions', 'position history', 'realized PnL', 'account bills', 'transaction history', 'trading fees', 'fee tier'…

okx/agent-trade-kit · 236 tokens

agb-bei-kreditvertraegen-verbraucherdarlehen

Für AGB bei Kreditverträgen Verbraucherdarlehen: ordnet Norm, Beweislast und Gegenargument; Ergebnis: Prüfprodukt mit Risiko und nächstem Schritt.

Klotzkette/claude-fuer-deutsches-recht · 49 tokens

agb-in-kapitalanlagen-effektenhandel

Für AGB in Kapitalanlagen Effektenhandel: ordnet Norm, Beweislast und Gegenargument; Ergebnis: Prüfprodukt mit Risiko und nächstem Schritt.

Klotzkette/claude-fuer-deutsches-recht · 41 tokens

mahngebuehren-und-zinsanpassung-agb

Für Mahngebühren und Zinsanpassung AGB: ordnet Norm, Beweislast und Gegenargument; Ergebnis: Berechnungstabelle mit Annahmen und Kontrollfragen.

Klotzkette/claude-fuer-deutsches-recht · 53 tokens

app-planner

Guides you through comprehensive iOS/Swift app planning and analysis. Use for new apps (concept to architecture) or existing apps (audit current state, plan improvements, evaluate tech stack). Covers product planning, technical decisions, UI/UX design, and distribution strategy.

rshankras/claude-code-apple-skills · 58 tokens

tax-strategy-optimizer

Pre-tax vs Roth analysis, charitable giving optimization, capital gains timing, deduction maximization. Not a substitute for CPA.

OneWave-AI/claude-skills · 30 tokens