Entry P1 category router for business logic testing. Use when workflow abuse, race conditions, pricing flaws, or multi-step state attacks matter more than parser-level input injection.
Install
npx skills add https://github.com/yaklang/hack-skills --skill business-logic-vulnSKILL.md
Business Logic Router
This is the routing entry point for business-logic and state-machine issues.
When to Use
- The target involves coupons, inventory, payment, approvals, quotas, invites, trials, or state transitions
- The issue is not parser-level; it is about when checks happen and which business conditions are checked
- You suspect race conditions, workflow bypass, price tampering, negative values, stacked discounts, or multi-step flaws
Skill Map
Recommended Flow
- First map key business states and one-time actions
- Then check for check-then-act windows, sequence dependencies, or missing cross-step authorization
- If the chain depends on APIs, uploads, or object permissions, return to the corresponding router skill to complete the path
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