bizlogic-hunter

bizlogic-hunter is an agent for Claude Code from 0xSteph/pentest-ai-agents. It costs 61 tokens per session (2,772 once invoked), scanned B, original, MIT.

A security-testing agent that looks for flaws in an application's business rules and workflows. It focuses on problems such as changing prices, bypassing permissions, or exploiting transaction timing.

In plain words
What is it for?
Use it for authorized penetration tests of web applications, cloud systems, and related environments, with declared testing scope and test accounts.
Why use it?
Standard security scanners may miss errors in how an application applies its own rules. This agent tests whether users can perform actions they should not be allowed to perform.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; positional $N argument; mentions Claude Code.

Part of the pentest-ai-agents plugin — 3 commands, 52 agents shipped together

Good fit Use it for authorized penetration tests of web applications, cloud systems, and related environments, with declared testing scope and test accounts.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/0xsteph/pentest-ai-agents/bizlogic-hunter
About the project

0xSteph/pentest-ai-agents is a collection of Claude Code specialist agents for authorized penetration testing and security research, covering areas such as reconnaissance, web systems, cloud, reverse engineering and detection. Security researchers and penetration testers use it to plan engagements, investigate findings, build detections and write reports. The catalogue entries are the project's own agents, commands and plugin components.

0xSteph/pentest-ai-agents · 2,213 stars · on GitHub · pentestai.xyz

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.

Clone the repo
git clone --depth 1 https://github.com/0xSteph/pentest-ai-agents

Made for: Claude Code.

Or install pentest-ai-agents, the plugin that ships this one along with the rest of its 3 commands, 52 agents.

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 bizlogic-hunter

README.md
[![agentmods](https://agentmods.dev/badge/agents/0xsteph/pentest-ai-agents/bizlogic-hunter/github.svg)](https://agentmods.dev/agents/0xsteph/pentest-ai-agents/bizlogic-hunter)
Your own site
<a href="https://agentmods.dev/agents/0xsteph/pentest-ai-agents/bizlogic-hunter"><img src="https://agentmods.dev/badge/agents/0xsteph/pentest-ai-agents/bizlogic-hunter/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.

agentmods 80×15 button for bizlogic-hunter

Your own site · 80×15
<a href="https://agentmods.dev/agents/0xsteph/pentest-ai-agents/bizlogic-hunter"><img src="https://agentmods.dev/badge/agents/0xsteph/pentest-ai-agents/bizlogic-hunter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,772 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 $0.00061 $0.02772
Opus 5 $0.00030 $0.01386
Sonnet 5 $0.00012 $0.00554
Haiku 4.5 $0.00006 $0.00277

Measured 11d ago against content hash df25ce56d85c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

bizlogic-hunter scanned grade B with 2 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 11d 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.

Unrestricted tool accessmediumExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

If the user has not declared scope, DO NOT execute any commands against targets.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Tool: curl parallel requests / custom threading script
agents/bizlogic-hunter.md · 318 lines

How it starts

The opening of the file, as written. The whole thing — 318 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a business logic vulnerability specialist for authorized penetration testing and red team engagements. You understand the intended workflow of an application and actively look for clever ways to break those business rules. Standard scanners catch SQL injection and XSS. You catch the shopping cart that lets users set their own price.

Scope Enforcement (MANDATORY)

Session Initialization

Before executing ANY command against a target:

  1. Ask the user to declare the authorized scope (IP ranges, domains, URLs, cloud accounts)
  2. Ask for the engagement type (external, internal, web app, cloud, wireless, etc.)
  3. Store the scope declaration for the session

If the user has not declared scope, DO NOT execute any commands against targets. You may still analyze output the user pastes (advisory mode) without a scope declaration.

Pre-Execution Validation

Before composing every Bash command, verify:

  • Every target IP, domain, or URL falls within the declared scope
  • The test does not modify production data (use test accounts only)
  • The test does not cause financial loss (canary transactions, not real ones)
  • The test does not affect other users' sessions or data
  • The command does not attempt to bypass Claude Code's permission prompt

If a target falls outside scope, REFUSE the command and explain why.

OPSEC Tags

Tag every test with its noise level:

  • QUIET: Observing normal application behavior, reading responses
  • MODERATE: Sending modified requests, testing boundary conditions
  • LOUD: Active exploitation of logic flaws, rapid automated requests

Evidence Handling

Save all test results to evidence/ with the naming convention:

evidence/bizlogic_{flaw_type}_{target}_{YYYYMMDD_HHMMSS}.{ext}

Core Capabilities

What You Test (That Scanners Miss)

Standard vulnerability scanners look for known technical flaws. You look for logical errors in how the application is designed to work. These categories represent the most common business logic vulnerabilities:

Read the full file on GitHub · 318 lines

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. 11d ago First seen · 318 lines · 61 tokens per session scan B df25ce56d85c

Subscribe to this mod's changes

bizlogic-hunter is an agent published in the GitHub repository 0xSteph/pentest-ai-agents (2,213 stars, last pushed 25d ago), licensed MIT. It adds 61 tokens to every session and 2,772 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 2 findings (unrestricted tool access, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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