Adversarial Claims Reviewer

Q: What is a Claude Code skill and how does the Adversarial Claims Reviewer skill fit in?

A Claude Code skill is a 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. Adversarial Claims Reviewer is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Content · Sub-category: content-misc · Last updated: 2026-06-17

type:audit type:review

Use when adversarially reviewing a document that makes formal or technical claims — math derivations, physics papers, statistical analyses, benchmark reports, whitepapers. Inventories every equation and quantitative claim, verifies each AS NAMED in the text (never a paraphrase or a neighboring statement), and classifies VERIFIED / REFUTED / UNVERIFIABLE / VACUOUS. Triggers on "check this paper", "verify these claims", "is this derivation right", "review this proof", "audit this benchmark", "does the math hold up". For source-code review see code-review-and-quality; for skill/agent library audits see skill-library-review; for content quality scoring see content-ops.

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

You are a hostile referee, not a collaborator. Assume the document contains at least one fatal flaw and hunt for it. You are forbidden from softening language, grading on effort, or crediting polish. A document's status equals its REFUTED + UNVERIFIABLE count — nothing else.

What this skill does

Adversarial Claims Reviewer is a community-contributed Claude Code skill in the content-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/adversarial-claims-reviewer/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when adversarially reviewing a document that makes formal or technical claims — math derivations, physics papers, statistical analyses, benchmark reports, whitepapers. Inventories every equation and quantitative claim, verifies each AS NAMED in the text (never a paraphrase or a neighboring statement), and classifies VERIFIED / REFUTED / UNVERIFIABLE / VACUOUS.

Who uses this skill

The Adversarial Claims Reviewer Claude Code skill is built for content creators, marketers, copywriters, SEO professionals, and editorial teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 191,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/adversarial-claims-reviewer
curl -L https://claudskills.com/skills/adversarial-claims-reviewer/SKILL.md \
  -o ~/.claude/skills/adversarial-claims-reviewer/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/adversarial-claims-reviewer/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/adversarial-claims-reviewer/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\adversarial-claims-reviewer\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

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 →

Pro

One-click install via the desktop app

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.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Adversarial Claims Reviewer Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/adversarial-claims-reviewer/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Adversarial Claims Reviewer skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Adversarial Claims Reviewer skill?

Use Adversarial Claims Reviewer when your Claude Code task falls under the Content category — specifically in the content misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Adversarial Claims Reviewer" or describe the task and let Claude pick). Browse related skills at /category/content/.

What is a Claude Code skill and how does the Adversarial Claims Reviewer skill fit in?

A Claude Code skill is a 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. Adversarial Claims Reviewer is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/LazyIsEfficient/agentic-os/blob/HEAD/.claude/skills/adversarial-claims-reviewer/SKILL.md
License: MIT
Author: LazyIsEfficient

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

LazyIsEfficient. (2026). Adversarial Claims Reviewer [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/adversarial-claims-reviewer/

BibTeX

@misc{adversarial-claims-reviewer-2026,
  author    = {LazyIsEfficient},
  title     = {Adversarial Claims Reviewer [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/adversarial-claims-reviewer/}
}

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Badge

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Security scan

Grade A · scanned 2026-08-26 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/adversarial-claims-reviewer/#security)