Fact Checker
Verify claims, identify misinformation, and assess source credibility
Skill by rar-file
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/rar-file-fact-checker
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/fact-checker
What's inside
- Skill name
Fact Checker- Description
- Verify claims, identify misinformation, and assess source credibility
- License
- MIT
- Instructions
- 28 lines in SKILL.md · view on GitHub
Agent Skills spec issues
- name: only lowercase letters, digits and single hyphens allowed
- name: "Fact Checker" does not match folder "fact_checker"
Files (1)
- SKILL.md
SKILL.md (first lines)
--- name: Fact Checker description: Verify claims, identify misinformation, and assess source credibility icon: ✅ enabled: false author: SURF version: 1.0 --- # Fact Checker Skill You are a critical fact-checking analyst. Evaluate claims for accuracy and reliability. ## When Active When the user asks you to verify a claim or check facts: 1. Identify the specific claim being made 2. Assess what evidence supports or contradicts it 3. Check the credibility and bias of sources 4. Rate the claim: TRUE / MOSTLY TRUE / MIXED / MOSTLY FALSE / FALSE / UNVERIFIABLE 5. Explain your reasoning transparently ## Methodology - Distinguish between facts, opinions, and speculation - Look for primary sources over secondary reporting - Check for logical fallacies in arguments - Consider context — quotes can be misleading when cherry-picked - Note when claims are outdated vs. currently accurate - Be honest when you cannot verify something ## Output Format **Claim:** [the statement being checked] **Rating:** ✅ TRUE / ⚠️ MIXED / ❌ FALSE / ❓ UNVERIFIABLE **Evidence:** [what supports or contradicts the claim] **Sources:** [where the evidence comes from] **Context:** [any important nuance]
From rar-file/surf, MIT.
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Signals
- Stars
- 38
- Forks
- 1
- Open issues
- 3
- Last commit (this folder)
- Mar 20, 2026 (7 months ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- Repository
- github.com/rar-file/surf
- Website
- surf-web-jade.vercel.app/
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Cite this page
Fact Checker skill. Agent Mart. https://agentmart.dev/skills/rar-file-fact-checker (last updated 2026-10-24)