fact-check
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.
npx skills add majiayu000/claude-skill-registry --skill fact-check-damionrashford-rivalsearch-plugin --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# 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
- Step 1: Claim Decomposition
- Step 2: Primary Source Search
- Step 3: Corroboration Search
- Step 4: Counter-Evidence Search
- Step 5: Academic Verification
- Step 6: Deep Source Analysis
- Step 7: Compile Verdict
What does the fact-check skill do?
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.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill fact-check-damionrashford-rivalsearch-plugin --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.