spec_version: 1
name: Container_Yard
type: space
runtime: fastapi
app: Container_Yard.server.app:app
port: 8000
description: |
  Container Yard Port Operations Simulation
  Simulates a real-world port container yard where agents must place arriving containers
  into stacks to minimize rehandles during retrieval operations.
metadata:
  difficulty_levels:
    - easy
    - medium
    - hard
  tasks: 3
  observation_space: Stack states with container priorities
  action_space: Discrete(10) - stack selection
  reward: Incremental feedback based on placement efficiency
  max_container_height: 3-5 (task dependent)