fact-checker

Identify, verify, and rate factual claims with evidence-based analysis.

46|14|Updated Jan 11, 2026
One-click install
npx skills add https://github.com/alexdcd/Mafia-Claude-Skills --skill fact-checker-alexdcd
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fact-checker
Source: https://github.com/alexdcd/Mafia-Claude-Skills/tree/main/skills/fact-checker
Command: npx skills add https://github.com/alexdcd/Mafia-Claude-Skills --skill fact-checker-alexdcd

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill helps users verify factual claims and assess information credibility using a structured, evidence-based approach. It reduces the spread of misinformation by providing a transparent evaluation workflow.

Core Features & Use Cases

  • Structured verification: identify the claim, gather credible sources, and rate confidence.
  • Evidence-based analysis: assess data quality, source credibility, and context.
  • Use Case: You encounter a viral claim; this skill guides you to collect sources, weigh evidence, and present a verdict with rationale.

Quick Start

Provide a complete, evidence-based fact-check of a given claim using credible sources.

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 viral claim found on social media?

To fact-check a viral claim, you need to identify the specific statement, gather credible sources, weigh the evidence, and generate a structured verification verdict with a clear confidence rating.

What is evidence-based source evaluation for misinformation?

Evidence-based source evaluation is a systematic process that assesses information credibility by analyzing data quality, source provenance, and context to reduce the spread of misinformation.

How do I verify factual claims from a research article?

You verify factual claims from research by applying a structured verification workflow that gathers reliable sources, emphasizes transparent reasoning, and provides a final credibility assessment.

What is the best way to assess the credibility of everyday statements?

The best way to assess the credibility of everyday statements is through systematic fact-checking that identifies the claim, evaluates evidence quality, and assigns a transparent confidence rating.

Can I use this fact-checker for claims from media and social platforms?

Yes, you can use this fact-checker for claims from media, research, social platforms, and everyday statements, applying its structured verification workflow to rate confidence.

What are the limitations of a structured fact-checking workflow?

The main limitation of a structured fact-checking workflow is its reliance on access to reliable sources, as transparent reasoning and accurate confidence ratings depend entirely on available evidence.