claude-fact-check-skill

🥈Silver

Automates fact-checking of social media posts by identifying claims, gathering evidence, analyzing source independence, and detecting rhetorical fallacies. Benefits operations teams by providing clear verification reports. Connects to Claude AI and other AI assistants.

500Updated 1mo ago

Intermediate30min to implementautomation

Saves ~240 min per use

Quick InstallView Source

git clone https://github.com/cellear/claude-fact-check-skill.git

Works with:

Claude

Overview

About This Skill

This skill provides a comprehensive methodology for verifying claims in social media posts (50-500 words) using AI assistance. It identifies primary assertions, gathers supporting and disputing evidence from multiple sources, analyzes source independence to detect circular citations, and flags rhetorical fallacies and manipulation tactics. The skill evaluates ideological alignment of sources and delivers findings in clear, actionable markdown reports with confidence levels. It works as a Claude Skill for Pro subscribers, a copy-paste prompt for free users, or as a manual checklist, making it accessible across platforms including ChatGPT and Perplexity.

How to Use

Upload the SKILL.md file to Claude.ai (Pro subscription required) via Settings → Skills, or copy the PROMPT.txt file and paste it into any AI assistant with web search capability. Then share the social media post or claim you want fact-checked.

Use Cases

Content moderation teams evaluating user-generated content for misinformation

Journalists fact-checking claims in real-time reporting

Teams verifying viral social media claims before sharing

Educators teaching critical thinking and media literacy skills

Setup & Installation

Quick Install

No install command available. Check the GitHub repository for manual installation instructions.

Alternative Install (Git Clone)

git clone https://github.com/cellear/claude-fact-check-skill

Requirements

Claude Code or compatible AI agent
Works with: Claude

Quick Start Guide

Install the Skill

Copy the install command above and run it in your terminal.

Open Your AI Agent

Launch Claude Code, Cursor, or your preferred AI coding agent.

Try It Out

Use the prompt template or examples below to test the skill.

Customize

Adapt the skill to your specific use case and workflow.

Usage Examples

Prompt Template

Fact-check the following social media post: '[POST]'. Identify any factual claims, then gather evidence to verify each claim. For each claim, evaluate the independence of sources and check for rhetorical fallacies. Present your findings in a clear, structured report format.

Example Output

After analyzing the social media post about the new 'EcoClean' laundry detergent, here's the fact-checking report:

1. Claim: 'EcoClean removes 99.9% of stains in a single wash.'
   - Verification: Independent lab tests show 92-95% stain removal efficiency, not 99.9%. The 99.9% claim appears to be an exaggeration.
   - Sources: Manufacturer's website, Consumer Reports, Good Housekeeping Institute
   - Fallacies: None detected

2. Claim: 'EcoClean is the only detergent that's 100% biodegradable.'
   - Verification: False. Several other brands (e.g., Seventh Generation, Ecover) also offer 100% biodegradable detergents.
   - Sources: EPA certification database, brand websites
   - Fallacies: Black-and-white fallacy (false dichotomy)

3. Claim: 'EcoClean uses patented GreenEnzyme technology.'
   - Verification: True. Patent US10125376B2 confirms this technology is unique to EcoClean.
   - Sources: USPTO database
   - Fallacies: None detected

Conclusion: The post contains one exaggerated claim and one false claim. The patent claim is verified.