ClaudSkills / Science & Research / math-stats

Fact Checker

Quality score: 70/100 · Category: Science & Research · Sub-category: math-stats

Verifies factual claims in documents using web search and official sources, then proposes corrections with user confirmation. Use when the user asks to fact-check, verify information, validate claims, check accuracy, or update outdated information in documents. Supports AI model specs, technical documentation, statistics, and general factual statements.

What this skill does

Fact Checker is a production-ready Claude Code skill (quality score 70/100) in the math-stats sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/fact-checker/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user asks to fact-check, verify information, validate claims, check accuracy, or update outdated information in documents. Supports AI model specs, technical documentation, statistics, and general factual statements.

Who uses this skill

The Fact Checker skill is built for researchers, data scientists, academics, and analysts working with complex data and scientific literature. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/fact-checker
curl -L https://claudskills.com/skills/fact-checker/SKILL.md \
  -o ~/.claude/skills/fact-checker/SKILL.md

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

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

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.

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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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