42crunch-scan

42crunch-scan is a skill for Claude Code from 42Crunch-AI/claude-plugins. It costs 140 tokens per session (1,782 once invoked), scanned A, original, no licence file.

A method for running 42Crunch checks against a live API, including tests of whether requests are properly authorized.

In plain words
What is it for?
It is for running conformance and authorization scans, creating scan configuration, testing BOLA and BFLA issues, and fixing findings that block the security-quality check.
Why use it?
It reveals API compatibility and access-control problems, including cases where users may reach objects or functions they should not access.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the 42crunch-api-security-testing plugin — 5 skills shipped together

Good fit It is for running conformance and authorization scans, creating scan configuration, testing BOLA and BFLA issues, and fixing findings that block the security-quality check.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/42crunch-ai/claude-plugins/42crunch-scan
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 42Crunch-AI/claude-plugins --skill 42crunch-scan
Clone the repo
git clone --depth 1 https://github.com/42Crunch-AI/claude-plugins

Made for: Claude Code.

Or install 42crunch-api-security-testing, the plugin that ships this one along with the rest of its 5 skills.

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 42crunch-scan

README.md
[![agentmods](https://agentmods.dev/badge/skills/42crunch-ai/claude-plugins/42crunch-scan/github.svg)](https://agentmods.dev/skills/42crunch-ai/claude-plugins/42crunch-scan)
Your own site
<a href="https://agentmods.dev/skills/42crunch-ai/claude-plugins/42crunch-scan"><img src="https://agentmods.dev/badge/skills/42crunch-ai/claude-plugins/42crunch-scan/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 42crunch-scan

Your own site · 80×15
<a href="https://agentmods.dev/skills/42crunch-ai/claude-plugins/42crunch-scan"><img src="https://agentmods.dev/badge/skills/42crunch-ai/claude-plugins/42crunch-scan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 140 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,782 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.
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 $0.00140 $0.01782
Opus 5 $0.00070 $0.00891
Sonnet 5 $0.00028 $0.00356
Haiku 4.5 $0.00014 $0.00178

Measured 10d ago against content hash 7563bbc7faa4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

42crunch-scan 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 10d 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.

plugins/api-security-testing/skills/42crunch-scan/SKILL.md · 149 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

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. 10d ago First seen · 149 lines · 140 tokens per session scan A 7563bbc7faa4

Subscribe to this mod's changes

42crunch-scan is a skill published in the GitHub repository 42Crunch-AI/claude-plugins (1 stars, last pushed 1mo ago), with no licence file. It adds 140 tokens to every session and 1,782 once invoked, about $0.0007 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 2026-08-30.

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