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.
npx skills add sanjaysaini1952/BugBounty-Arsenal --skill business-logicgit clone --depth 1 https://github.com/sanjaysaini1952/BugBounty-ArsenalWrote 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.
[](https://agentmods.dev/skills/sanjaysaini1952/bugbounty-arsenal/business-logic)<a href="https://agentmods.dev/skills/sanjaysaini1952/bugbounty-arsenal/business-logic"><img src="https://agentmods.dev/badge/skills/sanjaysaini1952/bugbounty-arsenal/business-logic/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.
<a href="https://agentmods.dev/skills/sanjaysaini1952/bugbounty-arsenal/business-logic"><img src="https://agentmods.dev/badge/skills/sanjaysaini1952/bugbounty-arsenal/business-logic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00000 | $0.00462 |
| Opus 5 | $0.00000 | $0.00231 |
| Sonnet 5 | $0.00000 | $0.00092 |
| Haiku 4.5 | $0.00000 | $0.00046 |
Grade A, and why
business-logic 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Business Logic Hunting Skill — 12 Test Cases
Load when: business logic, logic flaw, workflow bypass, price manipulation, negative quantity.
148. Price manipulation (easy)
Change price in request body, hidden fields, or API calls. Test: negative prices, zero prices, large discounts.
149. Quantity manipulation (easy)
Set quantity to negative, zero, or very large numbers. Check if negative quantities result in refunds or credit.
150. Coupon abuse (medium)
Apply multiple coupons, reuse expired coupons, use coupons on discounted items, stack percentage discounts.
151. Step skipping in checkout (easy)
Skip from cart directly to confirmation. Check if payment step is enforced server-side.
152. Step skipping in registration (easy)
Skip email verification, skip 2FA setup. Check if account is fully functional.
153. Subscription manipulation (medium)
Change subscription tier in requests, apply promotional pricing to paid plans, manipulate trial period.
154. Voting/rating manipulation (easy)
Vote/rate same item multiple times. Check if IP or user-based rate limiting exists.
155. Refund abuse (medium)
Request refund after using purchased item. Test refund to different payment method.
156. Gift card / wallet manipulation (medium)
Create gift card with zero balance, redeem gift cards multiple times, transfer between wallets.
157. User role manipulation (easy)
Change role, isAdmin, permissions in requests. Check if role changes are enforced server-side.
158. Multi-use single-use codes (easy)
Use single-use invitation codes, discount codes, or access tokens multiple times.
159. Negative quantity in shopping cart (medium)
Add item with quantity -1. Check if it adds credit or causes errors. Also test decimal quantities.
Common Business Logic Flaws
| Category | Test |
|---|---|
| Price | Change price in request, negative prices, zero prices |
| Quantity | Negative quantities, zero, overflow |
| Step order | Skip steps, go backwards, repeat steps |
| Time | Replay expired coupons, manipulate trial dates |
| Role | Privilege escalation via role change |
| State | Force state transitions, skip validation |
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.
- 12d ago First seen · 52 lines · 0 tokens per session scan A fbcff432bcd3
business-logic is a skill published in the GitHub repository sanjaysaini1952/BugBounty-Arsenal (2 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 462 tokens. 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.
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