{"id":"375a28c2-674b-4d44-a2ae-2084309a6b71","shortId":"hfQWNP","kind":"skill","title":"Subfinder Fast Passive Subdomain Enumeration Tool","tagline":"Subfinder is a passive subdomain discovery tool by ProjectDiscovery that finds valid subdomains for websites using curated online sources. Optimized for speed and stealth, it integrates cleanly into security reconnaissance pipelines via stdin/stdout support.","description":"# Subfinder Fast Passive Subdomain Enumeration Tool\n\nSubfinder is a passive subdomain discovery tool by ProjectDiscovery that finds valid subdomains for websites using curated online sources. Optimized for speed and stealth, it integrates cleanly into security reconnaissance pipelines via stdin/stdout support.\n\n## Prerequisites\n\nGo 1.21+\n\n## Installation\n\nNo source-backed install or usage instructions could be extracted automatically. Review the upstream project before running this skill in a sensitive workflow.\n\n- Source: https://github.com/projectdiscovery/subfinder\n\n## Documentation\n\n- https://docs.projectdiscovery.io/tools/subfinder/overview\n\n## Source\n\n- [Agent Skill 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from registry signals: · indexed on github topic:agent-skills · 8 github stars · SKILL.md body (770 chars)","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"deterministic:skill-github:v1","enrichmentVersion":1,"enrichedAt":"2026-05-18T19:12:41.093Z","embedding":null,"createdAt":"2026-05-18T13:19:43.027Z","updatedAt":"2026-05-18T19:12:41.093Z","lastSeenAt":"2026-05-18T19:12:41.093Z","tsv":"'/projectdiscovery/subfinder':112 '/skills/subfinder-passive-subdomain-enumeration/)':123 '/tools/subfinder/overview':116 '1.21':83 'agent':118 'agentskillexchange.com':122 'agentskillexchange.com/skills/subfinder-passive-subdomain-enumeration/)':121 'automat':96 'back':88 'clean':33,73 'could':93 'curat':23,63 'discoveri':12,52 'docs.projectdiscovery.io':115 'docs.projectdiscovery.io/tools/subfinder/overview':114 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