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fact-checker

100 / 100 · Low risk

Fine to try.

By NickCrew/Claude-Cortex (GitHub) · coding · 68 stars · scanned at commit bb47af7

Use this skill when verifying factual claims, checking accuracy of statements, or assessing the credibility of information. Trigger phrases: 'fact-check this', 'is this true', 'verify this claim', 'check if this is accurate'. Do NOT use for subjective opinions, legal or medical advice, or claims requiring real-time data or breaking news.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'fact-checker' ] || [ -L ~/.agents/skills/'fact-checker' ]; then echo 'A skill folder named fact-checker already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/NickCrew/Claude-Cortex' "$d" && git -C "$d" checkout --quiet 'bb47af79ad3befe01ae01940fcf5f16e30a1b6df' -- 'skills/fact-checker' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/fact-checker' ~/.agents/skills/'fact-checker' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'fact-checker' ~/.claude/skills/'fact-checker' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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