Fact Check Example

A portable Agent Skill for discrete, checkable claims. It searches the claim, pulls primary source text with you-contents where useful, compares supporting and contradicting evidence, and returns a calibrated confidence read with citations through the standard You.com MCP server.

What You’ll Build

A SKILL.md package that turns a discrete claim into an evidence table. The skill searches the claim with you-search, pulls primary sources with you-contents where useful, separates supporting and contradicting evidence, and returns calibrated confidence instead of an unsupported verdict.

When It Fires

There is a discrete, checkable claim on the table.

Prerequisites

Install the Skill

1. Connect your agent harness to the You.com MCP server—see the MCP server guide.
2. Save the skill below as SKILL.md in your harness’s skills directory (or download it).
3. The agent invokes you-search and you-contents whenever the trigger fires.

The Skill

---
name: fact-check
description: Use when the user wants a specific claim verified - "is it true that X", "fact-check this", "does Y hold up". Returns evidence and a confidence read, not a verdict asserted from memory.
---
# Fact-check (You.com)
## When This Fires
There is a discrete, checkable claim on the table.
## How to Retrieve
1. Search the claim with `you-search`; pull primary sources with `you-contents`.
2. Line up supporting and contradicting evidence side by side.
3. Return the claim, what the evidence shows, a calibrated confidence, and the
   sources. Never assert a verdict the sources don't support.

Example Output

# Fact check
## Claim
The company opened its API to all developers this quarter.
## Evidence
Supports:
- The public changelog announced general API availability on May 12.
Complicates:
- Two enterprise-only endpoints remain behind account approval.
## Confidence
High for general API availability. Medium for the stronger claim that every API
surface is open to all developers.
Sources:
[1] Public changelog
[2] Developer docs

Next Steps