fact-checker

Evaluate factual claims and assign verdicts with confidence levels.

4|1|Updated Mar 18, 2026
One-click install
npx skills add https://github.com/xcrrr/claude-skills --skill fact-checker-xcrrr
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fact-checker
Source: https://github.com/xcrrr/claude-skills/tree/main/skills/research/fact-checker
Command: npx skills add https://github.com/xcrrr/claude-skills --skill fact-checker-xcrrr

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

The skill helps users verify factual claims, check accuracy, and assess credibility to prevent misinformation across articles, reports, and public discourse.

Core Features & Use Cases

  • Isolate and restate the claim in neutral terms to ensure precise evaluation.
  • Identify and assess credible sources, prioritizing primary or official documents.
  • Provide a transparent verdict with evidence, caveats, and confidence levels to support decision making.

Quick Start

Isolate the claim, gather primary sources, and return a verdict with supporting evidence.

Frequently Asked Questions about fact-checker

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I fact-check a claim to determine its accuracy and credibility?

To fact-check a claim, you isolate and restate it in neutral terms, gather primary or official sources, and evaluate the evidence to return a clear verdict with confidence levels.

What is the best way to verify statistics and quotes from social media articles?

Verifying statistics and quotes requires isolating the attributed claim, assessing credible sources, and applying transparent reasoning to label the verdict with confidence levels.

Can I use this approach to evaluate historical statements and attributed claims?

Yes, you can evaluate historical statements and attributed claims by isolating the factual assertion and cross-referencing it against credible primary documents to assess accuracy.

How does the verification process handle caveats and uncertainty in evidence?

The verification process handles uncertainty by providing a transparent verdict that explicitly states evidence, caveats, and confidence levels to support accurate decision making.

What sources are needed to prevent misinformation in public discourse?

Preventing misinformation requires identifying and assessing credible sources, prioritizing primary or official documents to ensure claims are backed by transparent reasoning and evidence.