Benchjack includes pricing or quota commentary; 7 code blocks for direct copy-paste. At roughly 3,351 words the SKILL.md is on the longer end of the catalog distribution.
Benchjack sits in the Security category under the red-team sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.
These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.
If $ARGUMENTS is empty or contains more than one argument (i.e., multiple space-separated paths/URLs), do NOT proceed with the audit. Instead, output ONLY the following message as plain text (no bold, no italic, no blockquotes, no markdown formatting) and stop:
Benchjack is a community-contributed Claude Code skill in the red-team sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/benchjack/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when analyzing whether a benchmark can be gamed or exploited.
The Benchjack Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 115,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/benchjack curl -L https://claudskills.com/skills/benchjack/SKILL.md \ -o ~/.claude/skills/benchjack/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/benchjack/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/benchjack/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\benchjack\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
SKILL.md from the source repository to ~/.claude/skills/benchjack/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Benchjack is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.If you reference this skill in a blog post, paper, or documentation, you can cite it as:
@misc{benchjack-2026,
author = {benchjack},
title = {Benchjack [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/benchjack/}
}Grade A · scanned 2026-06-13 — free static scan against the OWASP Agentic Skills Top 10.
The scan flagged 1 of 10 categories (execution), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.
Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:
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SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.