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fact-check

95 / 100 · Low risk

Fine to try.

By garrytan/gbrain (GitHub) · data · 32,412 stars · scanned at commit 001c8c3

Systematic claim-by-claim verification for any content before it ships. Modeled on professional fact-checking desks (The New Yorker, ProPublica, IFCN standards): extract every verifiable claim, check each against live citable sources (never training data), assign a 6-level confidence status, apply corrections, and produce a scored pass/fail report. Includes a data-derived-claims gate for outputs produced FROM the brain or a database: PRODUCER ≠ VERIFIER (re-derive each claim via a different que…

Works with any agent that supports SKILL.md skills.

What this skill can do

Other copies in this repository

garrytan/gbrain has 1 more folder with a skill named fact-check. This page shows the lowest-scoring copy.

• plugin/skills/fact-check 95/100 · Low risk

Install

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

if [ -e ~/.agents/skills/'fact-check' ] || [ -L ~/.agents/skills/'fact-check' ]; then echo 'A skill folder named fact-check already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/garrytan/gbrain' "$d" && git -C "$d" checkout --quiet '001c8c39e84d726e9bb6ecbae053458c970d5af3' -- 'skills/fact-check' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/fact-check' ~/.agents/skills/'fact-check' && 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-check' ~/.claude/skills/'fact-check' (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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