Verify whether an image or video is authentic, original and correctly captioned — provenance checks, error level analysis, noise and JPEG compression analysis, clone and copy-move detection, lighting and shadow consistency, C2PA Content Credentials, deepfake and AI-generation tells, and the honest limits of AI-detector tools.
Install
npx skills add UseOSINT/Skills --skill is-this-photo-realnpx skills add UseOSINT/Skills --skill is-this-photo-real -a claude-code -gnpx skills add UseOSINT/Skills --skill is-this-photo-real -a codex -ggemini skills install https://github.com/UseOSINT/Skills.git --path skills/is-this-photo-realgh skill install UseOSINT/Skills is-this-photo-realgit clone --depth 1 https://github.com/UseOSINT/Skills /tmp/UseOSINT__Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/UseOSINT__Skills/skills/is-this-photo-real ~/.claude/skills/is-this-photo-real # Claude Code
cp -R /tmp/UseOSINT__Skills/skills/is-this-photo-real ~/.agents/skills/is-this-photo-real # Codex, Cursor, Gemini CLI, Copilot, OpenCode