From majestic-marketing
Verifies factual claims in marketing content like statistics, quotes, metrics, and dates against sources via WebSearch, computes accuracy score, and outputs report with citations and fixes.
npx claudepluginhub majesticlabs-dev/majestic-marketplace --plugin majestic-marketingThis skill is limited to using the following tools:
Verify factual claims in marketing content and return an accuracy score with source citations.
Extracts verifiable claims like statistics, awards, certifications, and performance metrics from marketing content, then classifies them as verified or unverified against evidence JSON files.
Verifies factual claims by isolating assertions, sourcing primary evidence, assessing context, and issuing verdicts like True/Mostly True/False with confidence levels. For stats, quotes, history, science reports.
Audits affiliate content for FTC compliance, platform rules, disclosure placement, prohibited claims, and endorsement guidelines. Outputs scorecard with issues, severity levels, and fix suggestions.
Share bugs, ideas, or general feedback.
Verify factual claims in marketing content and return an accuracy score with source citations.
| Claim Type | Example | Verification Method |
|---|---|---|
| Statistics | "85% of marketers use AI" | WebSearch for source |
| Metrics | "Saves 10 hours/week" | Look for case studies |
| Quotes | "As Forbes reported..." | Verify quote exists |
| Comparisons | "Fastest in the industry" | Check competitor data |
| Awards/Recognition | "Award-winning platform" | Verify award exists |
| Dates/Events | "Founded in 2015" | Cross-reference sources |
Extract Claims
Categorize
Verify via WebSearch
Score Each Claim
Calculate Overall Score
## Fact Check Report: [Content Title/Description]
**Overall Accuracy Score:** X/10
**Claims Analyzed:** X total (X verifiable, X opinions)
### Claim Analysis
| # | Claim | Type | Status | Source | Action |
|---|-------|------|--------|--------|--------|
| 1 | "85% of marketers..." | Stat | Verified | [HubSpot 2024] | Add citation |
| 2 | "Best solution..." | Opinion | N/A | - | OK as-is |
| 3 | "Saves 10 hours" | Metric | Unverified | - | Add case study |
| 4 | "Founded 2015" | Fact | Contradicted | Was 2016 | Correct date |
### High-Risk Claims
Claims that need immediate attention:
1. **[Claim]** - [Why it's risky] - [Recommended fix]
### Recommendations
**To improve accuracy score:**
1. Add citations for unverified statistics
2. Soften absolute claims ("best" -> "leading")
3. Update outdated data points
4. Remove or rephrase contradicted claims
**Legal/Compliance Notes:**
- [Any claims that could trigger FTC/advertising concerns]
| Score | Meaning |
|---|---|
| 9-10 | Excellent - All major claims verified with sources |
| 7-8 | Good - Most claims verified, minor gaps |
| 5-6 | Fair - Mix of verified and unverified claims |
| 3-4 | Poor - Many unverified or contradicted claims |
| 1-2 | Critical - Major factual issues found |
Prefer sources in this order:
Avoid: blogs, forums, Wikipedia (use as starting point only)
FTC/Advertising Compliance:
Common Marketing Claim Patterns: