Fact Check

Q: What is a Claude Code skill and how does the Fact Check 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. Fact Check is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: research-misc · Last updated: 2026-05-21

type:audit

Verify factual accuracy of a document against the codebase and git history. Use when asked to verify, fact-check, or audit claims in a report or document. Accepts a file path or auto-detects the most recent HTML report.

About this skill (catalog notes)

Fact Check includes at least one code block. At roughly 1,595 words the SKILL.md is on the longer end of the catalog distribution.

License: MIT
Original author: LeeJuOh
Indexed lastmod: 2026-05-21
Catalog position: General · research-misc
Indexed related skills: 10

How Fact Check fits the catalog

Fact Check sits in the General category under the research-misc 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.

From the source SKILL.md

Verify the factual accuracy of a document against the actual codebase and git history. Extracts verifiable claims, checks each against source, corrects inaccuracies in place, and adds a verification summary.

What this skill does

Fact Check is a community-contributed Claude Code skill in the research-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/fact-check/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to verify, fact-check, or audit claims in a report or document. Accepts a file path or auto-detects the most recent HTML report.

Who uses this skill

The Fact Check Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ 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/fact-check
curl -L https://claudskills.com/skills/fact-check/SKILL.md \
  -o ~/.claude/skills/fact-check/SKILL.md

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

Skills live at ~/.claude/skills/fact-check/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\fact-check\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 Fact Check Claude Code skill?

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

What does the Fact Check 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 Fact Check skill?

Use Fact Check when your Claude Code task falls under the General category — specifically in the research 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 Fact Check" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Fact Check 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. Fact Check is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/LeeJuOh/claude-code-zero/blob/HEAD/plugins/vision-powers/skills/fact-check/SKILL.md
License: MIT
Author: LeeJuOh

Cite this skill

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

APA

LeeJuOh. (2026). Fact Check [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/fact-check/

BibTeX

@misc{fact-check-2026,
  author    = {LeeJuOh},
  title     = {Fact Check [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/fact-check/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/fact-check.svg)](https://claudskills.com/skills/fact-check/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

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Browse all General skills → Top 100 skills

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