business-logic-attack

business-logic-attack is a skill for Claude Code, Codex from wgpsec/AboutSecurity. It costs 168 tokens per session (1,733 once invoked), scanned A, original, no licence file.

A guide to finding flaws in how web applications handle business processes such as payments, orders, accounts, and verification.

In plain words
What is it for?
Use it to test registration, login, password reset, payments, coupons, balances, transfers, shopping carts, and similar functions.
Why use it?
It looks for workflow mistakes rather than coding bugs, such as reused verification codes, altered order states, invalid prices, or race conditions.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to test registration, login, password reset, payments, coupons, balances, transfers, shopping carts, and similar functions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wgpsec/aboutsecurity/business-logic-attack
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 wgpsec/AboutSecurity --skill business-logic-attack
Clone the repo
git clone --depth 1 https://github.com/wgpsec/AboutSecurity

Made for: Claude Code, Codex.

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 business-logic-attack

README.md
[![agentmods](https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/business-logic-attack.svg)](https://agentmods.dev/skills/wgpsec/aboutsecurity/business-logic-attack)
Your own site
<a href="https://agentmods.dev/skills/wgpsec/aboutsecurity/business-logic-attack"><img src="https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/business-logic-attack.svg" alt="Measured on agentmods" height="20"></a>
Per session 168 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,733 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 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 5.1 $0.00168 $0.01733
Opus 5 $0.00084 $0.00866
Sonnet 5 $0.00034 $0.00347
Haiku 4.5 $0.00017 $0.00173

Measured 4d ago against content hash fe840b203ee3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

business-logic-attack 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.

skills/exploit/web-method/business-logic-attack/SKILL.md · 160 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

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 160 lines · 168 tokens per session scan A fe840b203ee3

Subscribe to this mod's changes

business-logic-attack is a skill published in the GitHub repository wgpsec/AboutSecurity (1,721 stars, last pushed 8d ago), with no licence file. It adds 168 tokens to every session and 1,733 once invoked, about $0.0008 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 2026-09-03.

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