Open Source Intelligence (OSINT) gathering is the first active phase of a red team engagement, where operators collect publicly available information about the target organization to identify attack s
Install
npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-open-source-intelligence-gatheringnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-open-source-intelligence-gathering -a claude-code -gnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill performing-open-source-intelligence-gathering -a codex -ggemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/performing-open-source-intelligence-gatheringgh skill install mukul975/Anthropic-Cybersecurity-Skills performing-open-source-intelligence-gatheringgit 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/performing-open-source-intelligence-gathering ~/.claude/skills/performing-open-source-intelligence-gathering # Claude Code
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/performing-open-source-intelligence-gathering ~/.agents/skills/performing-open-source-intelligence-gathering # Codex, Cursor, Gemini CLI, Copilot, OpenCode