text: -- +migrate Up
  
  CREATE TABLE agents (
   agent_id       SERIAL PRIMARY KEY
  ,agent_addr     VARCHAR(500)
  ,agent_platform VARCHAR(500)
  ,agent_capacity INTEGER
  ,agent_created  INTEGER
  ,agent_updated  INTEGER
  
  ,UNIQUE(agent_addr)
  );
  
  
  -- +migrate Down
  
  DROP TABLE agents;
  