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recon-a-domain-passively

85 / 100 · Low risk

Fine to try.

By tonydzi/second-brain-starter-kit (GitHub) · coding · 15 stars · scanned at commit 552cc75

- End-to-end passive reconnaissance for a domain, website or IP — builds an asset inventory covering registration, DNS, subdomains, infrastructure, tech stack, history and ownership without sending a single packet to the target. Use when asked to research or profile a domain or website, map what an organisation runs, or investigate a suspicious site without alerting its operator

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

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

if [ -e ~/.agents/skills/'recon-a-domain-passively' ] || [ -L ~/.agents/skills/'recon-a-domain-passively' ]; then echo 'A skill folder named recon-a-domain-passively already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/tonydzi/second-brain-starter-kit' "$d" && git -C "$d" checkout --quiet '552cc7596c295452c208713bf5fa3c75d826f189' -- 'skills/recon-a-domain-passively' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/recon-a-domain-passively' ~/.agents/skills/'recon-a-domain-passively' && 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/'recon-a-domain-passively' ~/.claude/skills/'recon-a-domain-passively' (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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