{"contract_id":"check_registration_state_v1","title":"Check registration confirmation state","kind":"business_check","purpose":"Verify whether user email confirmation step is completed","applicable_channels":["chat","email"],"required_inputs":["email"],"allowed_tools":["tool.read_registration_state"],"allowed_actions":["read_confirmation_status"],"prohibited_actions":["modify_account","send_confirmation_email"],"success_outputs":["email_confirmed","registration_pending"]}