An integration checker for KakaoPay payment code. It compares related parts of a payment system, including server responses, client hooks, database state changes, and environment variables.

Reviewing KakaoPay payment integrations by comparing API response formats with client expectations, payment states with database transitions, and environment keys with their actual use.

It helps find mismatches between components that can make payments fail or leave records in the wrong state. It checks each module as soon as it is completed.

How revfactory/kakaopay configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to revfactory/kakaopay. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/revfactory/kakaopay/main/.claude/agents/payment-qa.md

Clone the repo

git clone --depth 1 https://github.com/revfactory/kakaopay

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/agents/revfactory/kakaopay/payment-qa/github.svg)](https://agentmods.dev/agents/revfactory/kakaopay/payment-qa)

Your own site

<a href="https://agentmods.dev/agents/revfactory/kakaopay/payment-qa"><img src="https://agentmods.dev/badge/agents/revfactory/kakaopay/payment-qa/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/agents/revfactory/kakaopay/payment-qa"><img src="https://agentmods.dev/badge/agents/revfactory/kakaopay/payment-qa.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 94 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 1,310 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00094	$0.01310
Opus 5.5	$0.00038	$0.00524
Sonnet 5.5	$0.00019	$0.00262
Haiku 4.5	$0.00009	$0.00131

Measured 2mo ago against content hash 0384ee178f9a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

payment-qa 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 2mo 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.

.claude/agents/payment-qa.md · 76 lines

The source is not reproduced here

No licence file

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.

2mo ago First seen · 76 lines · 94 tokens per session scan A 0384ee178f9a

Subscribe to this mod's changes

payment-qa is an agent published in the GitHub repository revfactory/kakaopay (4 stars, last pushed 6mo ago), with no licence file. It adds 94 tokens to every session and 1,310 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-08-31.

E-commerce Testing

payment-qa next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
payment-qarevfactory/kakaopay	Agent	4	6mo ago	none	A	94	Claude Code
shopify-app-architectkhadinakbarlabs/shopify-app-builder	Agent	2	27d ago	MIT	A	25	Claude Code
meta-agentlroy-stack/ai-pod-store	Agent	1	11d ago	none	A	43	Claude Code
polar-payments-specialistmars-mx/vibesaas	Agent	5	8mo ago	MIT	A	404	Claude Code
bug-investigatorkaizen-yutani/playwright-autopilot	Agent	12	6mo ago	none	A	0	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	4d ago	MIT	A	33	Claude Code

kakaopay: Agent for Claude Code