{"rule_id":"AB-056","category":"identity","icon":"🪪","title":"WebFinger Identity Lookup","short_description":"Your site can answer 'who is this?' queries from AI agents.","user_value":"Agents need to verify your identity before trusting your API. Without this, you're an anonymous server that agents will avoid.","wrong_example":"No identity endpoint. Agents have no way to verify who you are.","right_example":"Agents can look up your identity and confirm you're a legitimate service.","effort_hint":"moderate","estimated_cost":"$10-50","severity":"low","pillar":"executability","version":"1.0.0","counted_in_score":false,"check":{"type":"http_fetch","sources":["identity"],"target":"/.well-known/webfinger"},"fix":{"eligible":false,"type":"assisted","note":"Implement WebFinger endpoint per RFC 7033"},"checklist_anchor":"#AB-056","checklist_url":"/agent-readiness-checklist#AB-056","html_url":"/rules/AB-056","json_url":"/rules/AB-056.json","related_rules":[{"rule_id":"AB-057","title":"DID Document","category":"identity"},{"rule_id":"AB-112","title":"OAuth Authorization Server metadata (RFC 9728)","category":"identity"}]}