{
  "agent": "Concierge porsche-bogota-demo",
  "how_to_talk": "POST a esta misma URL con JSON { \"message\": \"…\", \"session_id\": \"<uuid opcional>\" }",
  "returns": "{ session_id, reply, tool_calls, tool_results } — cifras de inventario solo desde tool_results verificados",
  "agent_card": "/.well-known/agent.json"
}