fact-checker

Verify claims by cross-checking multiple sources and flagging misinformation.

Updated Apr 8, 2026
One-click install
npx skills add https://github.com/zm2231/personal-os-cowork --skill fact-checker-zm2231
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fact-checker
Source: https://github.com/zm2231/personal-os-cowork/tree/main/.claude/skills/fact-checker
Command: npx skills add https://github.com/zm2231/personal-os-cowork --skill fact-checker-zm2231

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill verifies claims, cross-checks sources, and identifies potential misinformation to help you maintain accuracy in research, writing, and decision-making.

Core Features & Use Cases

  • Claim Verification: identify core claims, search multiple sources, report consensus, and assign confidence.
  • Source Cross-Checking: compare sources, distinguish primary vs. secondary, and flag conflicting evidence.
  • Credibility Assessment: evaluate peer-review status, author credentials, recency, and bias risk.
  • Use Case: ensure a research article's claims are supported by multiple high-quality sources before publication.

Quick Start

Tell me a claim to verify, and I will provide sources, a credibility score, and a verdict.

Frequently Asked Questions about fact-checker

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

FAQPage Schema
How do I verify claims and cross-check sources for potential misinformation?

To verify claims and cross-check sources for misinformation, you provide the specific claim to the tool. It searches multiple sources, distinguishes primary versus secondary evidence, reports consensus, and assigns a confidence score to flag dubious claims.

What is the best way to assess source credibility and bias risk in research?

Assessing source credibility and bias risk involves evaluating peer-review status, author credentials, and recency. The tool automates this credibility assessment by applying structured evidence and source quality indicators to identify conflicting evidence.

How does multi-source cross-checking work for identifying fake news?

Multi-source cross-checking for fake news works by comparing information across multiple origins. The tool distinguishes primary from secondary sources, flags conflicting evidence, and uses structured timestamps to evaluate source quality and report consensus.

Can I use automated fact-checking for content creation and journalism?

You can use automated fact-checking for content creation and journalism to ensure accuracy before publication. It applies multi-source cross-checking and credibility assessment to research articles, verifying that claims are supported by high-quality sources.

What are the limitations of automated claim analysis and fact-checking?

Limitations of automated claim analysis include its reliance on available digital sources and structured evidence. While it flags dubious claims and assesses bias risk, complex context or heavily disputed topics may yield conflicting evidence that requires human review.