Verify claims, statements, or assertions by cross-referencing web, news, academic, and social sources. Produces a confidence-scored verdict with full evidence chain. Use when verifying claims, checking facts, or validating statements.
Scanned 9/2/2026
Install to Claude Code
npx -y skills add majiayu000/claude-skill-registry --skill fact-check-damionrashford-rivalsearch-plugin --agent claude-codeInstalls into .claude/skills of the current project.
Are you the author of Fact Check Damionrashford Rivalsearch Plugin?
Add the live security badge to your README — it updates automatically with every re-scan.
[](https://www.skillsdirectory.com/skills/majiayu000-fact-check-damionrashford-rivalsearch-plugin)More formats (shields.io, HTML) on the badges page.
---
name: fact-check
description: Verify claims, statements, or assertions by cross-referencing web, news, academic, and social sources. Produces a confidence-scored verdict with full evidence chain. Use when verifying claims, checking facts, or validating statements.
argument-hint: "[claim or statement to verify]"
allowed-tools: mcp__RivalSearchMCP__web_search, mcp__RivalSearchMCP__social_search, mcp__RivalSearchMCP__news_aggregation, mcp__RivalSearchMCP__scientific_research, mcp__RivalSearchMCP__github_search, mcp__RivalSearchMCP__content_operations, mcp__RivalSearchMCP__document_analysis, mcp__RivalSearchMCP__research_topic, Read, Grep, Glob, WebFetch, WebSearch
---
# Fact Check
Verify the following claim: **$ARGUMENTS**
Follow these steps precisely using RivalSearchMCP tools. Report progress after each step.
## Step 1: Claim Decomposition
Parse the claim into individually verifiable components. List each sub-claim and what evidence would confirm or refute it.
## Step 2: Primary Source Search
Use `web_search` to find the origin of the claim:
- query: "$ARGUMENTS"
- num_results: 15
- extract_content: true
Identify where this claim first appeared. Use `content_operations` to retrieve the original source:
- operation: "retrieve", url: <source_url>, extraction_method: "markdown"
## Step 3: Corroboration Search
Search for independent confirmation:
- `web_search` with query: "$ARGUMENTS", num_results: 10
- `web_search` with alternative phrasing of the claim, num_results: 10
- `news_aggregation` with query: "$ARGUMENTS", max_results: 10, time_range: "month"
Count how many independent sources confirm the claim.
## Step 4: Counter-Evidence Search
Actively search for contradicting evidence:
- `web_search` with query: "$ARGUMENTS false OR debunked OR incorrect OR misleading", num_results: 10
- `social_search` with query: "$ARGUMENTS", platforms: ["reddit", "hackernews"], max_results_per_platform: 10
Look for rebuttals, corrections, retractions, or alternative explanations.
## Step 5: Academic Verification
If the claim involves data, statistics, or technical facts:
- `scientific_research` with operation: "academic_search", query: "$ARGUMENTS", max_results: 5, sources: ["semantic_scholar", "arxiv"]
Check if peer-reviewed research supports or contradicts the claim.
## Step 6: Deep Source Analysis
For the 2-3 most authoritative sources (for and against), use `content_operations`:
- operation: "retrieve", url: <source_url>, extraction_method: "markdown"
- operation: "analyze", content: <retrieved>, analysis_type: "general", extract_key_points: true
Read and assess the quality of each source.
## Step 7: Compile Verdict
1. **Claim Under Review** — Quote the exact claim
2. **Verdict** — One of: Verified / Likely True / Unverified / Disputed / Likely False / False
3. **Confidence Score** — High / Medium-High / Medium / Medium-Low / Low
4. **Evidence For** — Sources supporting the claim with inline citations
5. **Evidence Against** — Sources contradicting the claim with inline citations
6. **Primary Source Analysis** — What the original source actually says
7. **Context & Nuance** — Important context that affects interpretation
8. **Component Verdicts** — If multiple sub-claims, verdict on each
9. **Sources** — Complete list of all URLs consulted
Use clean markdown. Every factual statement must cite its source with [Source Name](URL) format.
Is this your skill, or is something wrong with this listing? Request removal or report an issue. Author removals are honored within 72 hours.
No comments yet. Be the first to comment!