audit-payment-system SKILL.md skillA
audit-payment-system from kensaurus/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add kensaurus/skills/audit-payment-system@git:20261006.39320f8Pins git:20261006.39320f8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- kensaurus/skills
- Path
skills/audit-payment-system/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261006.39320f8, committed Oct 6, 2026
- First version recorded
- Aug 18, 2026
- Size
- 12,569 bytes
- Repository stars
- 9
- License
- MIT
Read-only audit of payment and money-movement code, scoped from Stripe Checkout to in-house ledgers. Use when "audit payment system", "double charge / idempotency", "ledger / reconciliation", or "webhook / 3DS / PCI". IAP → audit-monetization-iap.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# audit-payment-system — Money-Movement Correctness & Compliance Audit **Degree of freedom: MIXED** — Scope, matrix, and severity `[HIGH freedom]`; Phase 0 detection searches `[LOW freedom — run exactly]`. **Do not write exploit or payment-fraud PoCs** — quote the missing control, never a replay or spoof recipe. Read-only. Assess and prioritize; do not change code. Payment code is a STOP-and-confirm surface — findings feed a human-reviewed remediation run at high effort with a fresh-context reviewer. Delegations: per-call resilience → **`audit-resilience`**; PCI/secrets/authz → **`audit-security`**; ledger schema → **`audit-db-schema`**; outbox/saga *structure* → **`audit-backend-architecture`**; append-only integrity → **`plan-data-integrity`**; Stripe integration → the Stripe plugin skills. This skill owns *payment-domain correctness*. Payment failures are silent: a retried charge is a double-charge, a lost ledger write is vanished money, a logged PAN is PCI liability, an unverified webhook is an untrusted "paid". Three pillars: **idempotency**, a **double-entry ledger** (when in scope), **reconciliation** — plus **PCI DSS v4.0.1** and …
Read the whole file at its exact version.
How to install
mdr add kensaurus/skills/audit-payment-system@sha256:082c22ad58973789The line at the top of this page pins the label git:20261006.39320f8, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_qpyrjaeefes6nmaz)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Aug 18, 2026 and Oct 6, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.39320f8 latest | 2026-10-06 | 39320f8 | 12,569 B | A | view · diff |
| git:20260923.68c095e | 2026-09-23 | 68c095e | 19,948 B | A | view · diff |
| git:20260923.cf348bd | 2026-09-23 | cf348bd | 19,997 B | A | view · diff |
| git:20260819.170df67 | 2026-08-19 | 170df67 | 19,944 B | A | view · diff |
| git:20260818.fdb3115 | 2026-08-18 | fdb3115 | 18,670 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12569 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
kensaurus/skills · 9 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qpyrjaeefes6nmaz GET https://markdownregistry.com/api/v1/resolve?ref=kensaurus/skills/audit-payment-system GET https://markdownregistry.com/api/v1/blob/082c22ad58973789ad056a2e532dad114619acfd7c44eb794739a4f1ee1ef896
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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