What is method-specific-payment?

A payment flow for Fawaterak that uses one specific enabled method, such as Fawry, a card, a wallet, or Meeza. It creates the payment and checks the resulting invoice.

Use it to match a requested payment method, create a payment with cart details and return URLs, and retrieve the invoice or method-specific payment reference.

It prevents charging through an unintended method and shows the selected method's commission before payment starts.

method-specific-payment — Skill for Claude Code by theYahia

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 method-specific-payment

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/theyahia/wwmcp/method-specific-payment/github.svg)](https://agentmods.dev/skills/theyahia/wwmcp/method-specific-payment)

Your own site

<a href="https://agentmods.dev/skills/theyahia/wwmcp/method-specific-payment"><img src="https://agentmods.dev/badge/skills/theyahia/wwmcp/method-specific-payment/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/theyahia/wwmcp/method-specific-payment"><img src="https://agentmods.dev/badge/skills/theyahia/wwmcp/method-specific-payment.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 440 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.

Model	Per session	Once invoked
Fable 5.1	$0.00024	$0.00440
Opus 5	$0.00012	$0.00220
Sonnet 5	$0.00005	$0.00088
Haiku 4.5	$0.00002	$0.00044

Measured 5d ago against content hash 17d229869c7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

method-specific-payment 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 5d 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/fawaterak/.claude/skills/method-specific-payment/SKILL.md · 48 lines

What it actually says

/method-specific-payment — Force one payment method

Algorithm

Call get_payment_methods. It returns each enabled method with its id, name, key (fawry, visa, meeza, wallet…) and commission rate.
Match the method the user named to a row and take its numeric id. If the method they want is not in the list, stop — it is not enabled on this account. Do not substitute another.
Show the commission rate for the chosen method before charging, so the user sees the cost.
Call send_payment with payment_method_id, cartTotal (a string), cartItems, successUrl, failUrl, and optionally currency and pendingUrl.
Call get_invoice_data with the returned invoice_id to confirm the outcome and pull the method-specific artifact — for Fawry that is the reference code the customer pays with.

Response format

## Fawaterak payment — fawry

**Method**: Fawry (id 2, commission 1.0%)
**Invoice**: 88231
**Total**: 450 EGP
**Status**: unpaid
**Fawry reference**: 187 264 913

Customer pays this reference at any Fawry outlet within 48 hours.

Notes

Method ids are account-specific. Always read them from get_payment_methods; never hardcode.
Wallet and Meeza flows return a redirect; Fawry returns a code. Present whichever the response actually contains.
Commission differs per method — mention it when the user is choosing between rails.

Examples

/method-specific-payment fawry 450 "Mona Hassan" [email protected]
/method-specific-payment meeza 1200 "Ahmed Ali" [email protected]

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.

5d ago First seen · 48 lines · 24 tokens per session scan A 17d229869c7e

Subscribe to this mod's changes

method-specific-payment is a skill published in the GitHub repository theYahia/WWmcp (29 stars, last pushed 4d ago), licensed MIT. It adds 24 tokens to every session and 440 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.

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