# Fact Check

> Fact-checking and quality review of texts. [WHAT] Verifies claims, checks sources, identifies style issues. Can be used standalone or piped after /chronicle. [WHEN] Use when: fact-check, verify, check, quality check. [EXPERTISE] Fact-checking, source verification, style review.

- Skill: `carlheath/fact-check` (Agent Skill)
- Install (CLI): `npx skillmds@latest add carlheath/fact-check`
- Raw SKILL.md: https://api.skillmd.com/api/skills/carlheath/fact-check/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: carlheath (https://skillmd.com/u/carlheath)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/carlheath/fact-check

---


Review: $ARGUMENTS

# Fact-Check — verification and quality review

## Purpose

Review text for:
1. **Factual errors** — verifies claims against sources
2. **Source quality** — assesses credibility
3. **Style issues** — identifies AI patterns or style breaks
4. **Reference format** — checks APA 7

## Workflow

### STEP 1: extract claims

List all verifiable factual claims in the text:
- Statistics and numbers
- Quotes and attributions
- Technical descriptions
- Historical claims
- Dates

### STEP 2: verify each claim

For every claim:
1. Search for confirmation from credible sources
2. Mark as: ✅ VERIFIED | ⚠️ PARTIAL | ❌ WRONG | ❓ NOT VERIFIABLE
3. If WRONG: propose correction with source

### STEP 3: assess source quality

Review the reference list:
- Are the sources credible? (academic, established media, primary sources)
- Are they current? (post-2022 for AI-related material)
- Is APA 7 format correct?
- Are full URLs included?

### STEP 4: style review

Check for common AI patterns:
- "Not just X but also Y"
- "It's important to note..."
- "In summary..."
- Overuse of short fragments as paragraphs
- Monotone sentence length

### STEP 5: summary

Produce the review report:

```
## Review Report

**Text:** [Title]
**Date:** [YYYY-MM-DD]

### Fact-check
| Claim | Status | Comment |
|-------|--------|---------|
| ... | ✅/⚠️/❌ | ... |

### Corrections needed
1. [Specific correction with source]

### Source quality
- [Assessment]

### Style observations
- [Any issues]

### Recommendation
[ ] APPROVED for publication
[ ] CORRECTIONS REQUIRED (see above)
```

## Use in pipe

When `/fact-check` runs after `/chronicle`:
1. Read the produced text
2. Run the full review process
3. If APPROVED: continue to next step
4. If CORRECTIONS: list them and await feedback

## Delegation

For extensive fact-checking, delegate to a research agent:
```
"Verify the following claims from a text:
[list of claims]

MAX: 5 web searches
RETURN: verification status for each claim with source"
```

---

🎯 COMPLETED: [SKILL:fact-check] [Fact-check completed]
🗣️ CUSTOM COMPLETED: [SKILL:fact-check] [Review done]