fact-checker

Verify factual claims against authoritative sources and assign structured verdicts.

Updated Jul 23, 2026
One-click install
npx skills add https://github.com/rahulgupta2018/agent-skills --skill fact-checker-rahulgupta2018
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fact-checker
Source: https://github.com/rahulgupta2018/agent-skills/tree/main/skills/fact-checker
Command: npx skills add https://github.com/rahulgupta2018/agent-skills --skill fact-checker-rahulgupta2018

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill eliminates uncertainty and misinformation by providing a structured, evidence-based verification process for factual claims, statistics, and viral statements.

Core Features & Use Cases

  • Evidence-Based Verdicts: Assigns a clear rating (True, Mostly True, Mixed, Mostly False, False, Unverifiable) to any claim.
  • Source-Quality Weighting: Uses a configurable authority hierarchy to prioritize reliable evidence over social media or unverified sources.
  • Use Case: Use this when you need to verify a statistic cited in a report or debunk a viral claim, ensuring your final output is backed by cited reasoning rather than just training data.

Quick Start

Activate the fact-checker skill to verify the accuracy of the claim that global temperatures have risen by 1.1 degrees Celsius since the pre-industrial era.

Frequently Asked Questions about fact-checker

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

FAQPage Schema
How do I verify the factual accuracy of a specific claim or statistic?

To verify a specific claim, this fact-checker cross-references the statement against authoritative sources and assigns a structured verdict. It evaluates the claim's credibility by prioritizing reliable evidence over unverified sources.

What evidence-based verdict ratings can I use for claim verification?

Evidence-based verdict ratings for claim verification include True, Mostly True, Mixed, Mostly False, False, and Unverifiable. These fixed ratings provide objective, structured assessments for factual statements.

How does source credibility weighting work during fact-checking?

Source credibility weighting during fact-checking uses a configurable authority hierarchy to prioritize reliable evidence. This ensures objective reporting by weighing authoritative sources above social media or unverified inputs.

Can I use fact-checking within an existing research and analytical workflow?

Yes, you can use fact-checking within research and analytical workflows to assess the credibility of statistics, news, and statements. It integrates with project-specific source hierarchies to ensure evidence-backed reporting.

What is the best way to debunk viral claims using evidence-based analysis?

The best way to debunk viral claims using evidence-based analysis is cross-referencing them against authoritative sources. This process provides cited reasoning and a structured verdict rather than relying solely on training data.

Are there limitations to fact-checking claims that cannot be verified?

Yes, a limitation exists when claims lack sufficient authoritative evidence, resulting in an Unverifiable verdict. Fact-checking requires adherence to a fixed verdict scale and integration with source hierarchies to prevent unverified conclusions.