Conduct external recon using OSINT techniques to map an organization's external attack surface without touching target systems, gathering DNS records, certificate transparency logs, search results, social media, code repositories, and breach databases into a target profile.
Install
npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill conducting-external-reconnaissance-with-osintnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill conducting-external-reconnaissance-with-osint -a claude-code -gnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill conducting-external-reconnaissance-with-osint -a codex -ggemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/conducting-external-reconnaissance-with-osintgh skill install mukul975/Anthropic-Cybersecurity-Skills conducting-external-reconnaissance-with-osintgit clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills /tmp/mukul975__Anthropic-Cybersecurity-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/conducting-external-reconnaissance-with-osint ~/.claude/skills/conducting-external-reconnaissance-with-osint # Claude Code
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/conducting-external-reconnaissance-with-osint ~/.agents/skills/conducting-external-reconnaissance-with-osint # Codex, Cursor, Gemini CLI, Copilot, OpenCode