subfinder 是 ProjectDiscovery 出品的被动子域名发现工具。核心优势：纯被动（不产生目标流量）+ 多数据源聚合（40+ 源）+ 管道友好。
Subfinder Recon is a community-contributed Claude Code skill in the red-team sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/subfinder-recon/ and loads when your prompt matches the skill's trigger.
The Subfinder Recon Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/subfinder-recon curl -L https://claudskills.com/skills/subfinder-recon/SKILL.md \ -o ~/.claude/skills/subfinder-recon/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/subfinder-recon/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/subfinder-recon/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\subfinder-recon\SKILL.md on Windows. See the full install guide for step-by-step instructions.
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:
Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel
SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.