ECPay-API-Skill GEMINI.md

A set of Gemini CLI instructions for connecting software to ECPay, a Taiwanese payment and commerce service. It explains supported communication methods and how to choose between them.

In plain words
What is it for?
Use it when building or reviewing ECPay payment integrations, selecting an API communication method, or working with ECPay’s payment services.
Why use it?
It gives Gemini CLI a structured way to handle ECPay integration work instead of relying on unclear or incomplete instructions.

Instructions file for Gemini CLI

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.

agentmods
npx agentmods add instructions/ecpay/ecpay-api-skill/gemini-md
Clone the repo
git clone --depth 1 https://github.com/ECPay/ECPay-API-Skill

Made for: Gemini CLI.

Per session 5,514 This file is loaded in full into every session.
When invoked 5,514 The same file — it is already loaded in full.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.05514 $0.05514
Opus 5 $0.02757 $0.02757
Sonnet 5 $0.01103 $0.01103
Haiku 4.5 $0.00551 $0.00551

Measured 2d ago against content hash 6c9e2c5c350a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ECPay-API-Skill GEMINI.md 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 2d 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.

18. **WAF 關鍵字攔截**:ItemName / TradeDesc 不可含系統指令關鍵字(如 echo、python、cmd、wget、curl、bash 等約 40 個),ECPay WAF 會攔截並回傳 10400011,參數值應只含商品名稱。
GEMINI.md · 189 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2d ago First seen · 189 lines · 5,514 tokens per session scan A 6c9e2c5c350a

Subscribe to this mod's changes

ECPay-API-Skill GEMINI.md is an instructions file published in the GitHub repository ECPay/ECPay-API-Skill (173 stars, last pushed 1mo ago), with no licence file. It adds 5,514 tokens to every session, about $0.0276 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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