fact-check

Verify factual claims with source-cited answers within strict time budgets.

5|Updated Jun 5, 2026
One-click install
npx skills add https://github.com/VincentJiang06/skills --skill fact-check-vincentjiang06
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fact-check
Source: https://github.com/VincentJiang06/skills/tree/main/skills/fact-check
Command: npx skills add https://github.com/VincentJiang06/skills --skill fact-check-vincentjiang06

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill eliminates the risk of getting slow, uncited, or confidently incorrect answers to factual questions. It delivers verified, source-backed answers within strict time budgets, so you never have to waste time rabbit-holing or trust unsubstantiated claims.

Core Features & Use Cases

  • Speed-first hard budgets: Simple questions are answered in ≤2 minutes, complex ones in ≤5 minutes, with no unnecessary extra work.
  • Parallel search & early exit: Searches multiple independent sources in parallel and stops as soon as the answer is corroborated, minimizing wait time.
  • Deterministic citation validation: Every answer is structurally checked to ensure all load-bearing claims are cited and the output meets the required format, so sourcing is always traceable.
  • Honest uncertainty handling: If facts cannot be confirmed within the time budget, it returns a Low-confidence uncertain answer with explicit disclaimers instead of guessing. Use case example: Use it to quickly verify if a recent software release date is correct, check the validity of a public claim, or look up the definition of a technical term without waiting for a full research report.

Quick Start

Ask the fact-check skill to verify the claim "Python 3.13 was released in October 2024" and return a cited bottom-line answer within 2 minutes.

Frequently Asked Questions about fact-check

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

FAQPage Schema
How do I get a fast fact check for an unverified claim?

To get a fast fact check, this Skill queries multiple independent sources in parallel and stops early once corroboration is found, delivering a cited bottom-line answer within strict time budgets.

Can I verify if a specific claim is true without getting a long research report?

Yes, you can verify if a specific claim is true without a long report because this Skill focuses on quick lookups of definitions, current values, and uncontested facts, returning only a cited bottom-line answer.

What happens when fact-checking a claim cannot be confirmed within the time limit?

When fact-checking cannot confirm a claim within the time limit, the Skill returns a Low-confidence uncertain answer with explicit disclaimers instead of guessing, ensuring honest uncertainty handling.

How does source citation validation work for fact-checked answers?

Source citation validation works by applying deterministic structural checks to ensure every load-bearing claim in the fact-checked answer is properly cited and the output format meets traceability requirements.

What is the best way to look up current values or definitions with source verification?

The best way to look up current values or definitions with source verification is using a speed-first approach that applies parallel search fan-out and early exit on corroboration to deliver fast, cited answers.