{"rule_id":"AB-066","category":"discovery","icon":"🏷️","title":"Content Signals","short_description":"Your robots.txt declares preferences about how AI can use your content.","user_value":"Content signals let you control whether AI can train on, search, or use your content as input — protecting your rights.","wrong_example":"No content signals. AI systems assume default permissions, which may not match your wishes.","right_example":"Clear signals tell AI systems exactly what they can and can't do with your content.","effort_hint":"quick","estimated_cost":"$0","severity":"low","pillar":"discovery","version":"1.0.0","counted_in_score":true,"check":{"type":"content_parse","sources":["content_signals"],"target":"/robots.txt"},"fix":{"eligible":true,"type":"deterministic","note":"Add Content-Signal directive to robots.txt (e.g. Content-Signal: ai-train=no, search=yes, ai-input=no)"},"checklist_anchor":"#AB-066","checklist_url":"/agent-readiness-checklist#AB-066","html_url":"/rules/AB-066","json_url":"/rules/AB-066.json","related_rules":[{"rule_id":"AB-001","title":"Robots.txt File","category":"discovery"},{"rule_id":"AB-002","title":"Sitemap File","category":"discovery"},{"rule_id":"AB-003","title":"Agent Guide","category":"discovery"},{"rule_id":"AB-014","title":"LLMs.txt File","category":"discovery"},{"rule_id":"AB-061","title":"Link Relationships","category":"discovery"},{"rule_id":"AB-062","title":"API Catalog","category":"discovery"},{"rule_id":"AB-068","title":"DNS Agent Discovery","category":"discovery"},{"rule_id":"AB-110","title":"Blog articles in AI sitemap","category":"discovery"},{"rule_id":"AB-111","title":"Crawl-delay directive in robots.txt","category":"discovery"},{"rule_id":"AB-113","title":"LLM policy file","category":"discovery"}]}