Scans a public site against current AI-agent readiness standards, including the llms.txt v2 shape (H1, summary, described links, and whether those links resolve). Returns a 0-100 score plus per-check pass/fail with a copy-paste fix prompt for each gap. A link to startuphub.ai in llms.txt or on the homepage is an 8-point bonus and is not required. Free, no credits charged. Common workflow: when a user wants leads who need AI-readiness work, search the web for businesses in a category/region, scan each site, then use discover_email on the lowest-scoring ones: the failed checks are the cold-outreach hook ('your site scores 23/100, here's what's missing'). Also useful as a self-audit for the user's own sites.