# Business Logic Review

> Review an authorized application for business-logic vulnerabilities, workflow abuse, approval bypasses, replay conditions, quota circumvention, plan enforcement bugs, and state-transition errors. Use for billing, invites, approvals, refunds, admin actions, and multi-step workflows.

- **Type:** Skill
- **Install:** `agentstack add skill-muhammedzohaib-patchman-business-logic-review`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [MuhammedZohaib](https://agentstack.voostack.com/s/muhammedzohaib)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [MuhammedZohaib](https://github.com/MuhammedZohaib)
- **Source:** https://github.com/MuhammedZohaib/patchman/tree/main/skills/business-logic-review

## Install

```sh
agentstack add skill-muhammedzohaib-patchman-business-logic-review
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Business Logic Review

## Focus

- state machine gaps
- approval or refund bypasses
- replay and duplicate processing
- quota and entitlement circumvention
- race conditions around credits, inventory, or invitations
- UI-only controls missing server-side enforcement

## Method

1. Identify the invariant the product is trying to preserve.
2. Trace where the invariant is enforced.
3. Look for alternate paths, retries, replays, and admin shortcuts.
4. Confirm whether enforcement survives background jobs and webhooks.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [MuhammedZohaib](https://github.com/MuhammedZohaib)
- **Source:** [MuhammedZohaib/patchman](https://github.com/MuhammedZohaib/patchman)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-muhammedzohaib-patchman-business-logic-review
- Seller: https://agentstack.voostack.com/s/muhammedzohaib
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.