{
  "schema_version": "1.0",
  "id": "farm_ecosystem",
  "name": "Adaptive Farm Ecosystem",
  "description": "A compact farm world where generic agents coordinate around crops, water, soil health, pollination, and market demand.",
  "simulation": {
    "steps": 60,
    "seed": 7,
    "scheduler": "sequential",
    "activation": "sequential",
    "collect_history": true,
    "metadata": {
      "example": true,
      "domain": "farm"
    }
  },
  "space": {
    "dimensions": 2,
    "bounds": [
      [
        0,
        10
      ],
      [
        0,
        10
      ]
    ],
    "toroidal": false,
    "enforce_bounds": true,
    "metadata": {
      "layout": "small_demo_field"
    }
  },
  "agents": [
    {
      "id": "farmer_1",
      "type": "farmer",
      "position": [
        1.5,
        2.0
      ],
      "state": {
        "energy": 10,
        "credits": 8,
        "knowledge": 2,
        "soil_moisture_signal": 0.45,
        "inventory": {
          "wood": 3,
          "tools": 2,
          "seeds": 4
        }
      },
      "memory": {
        "goals": [
          {
            "id": "sustain_harvest",
            "description": "Keep crop output high without exhausting the field.",
            "importance": 3,
            "score": 3,
            "duration": 2
          },
          {
            "id": "coordinate_workers",
            "description": "Coordinate pollination, water, and soil stewardship.",
            "importance": 2,
            "score": 2,
            "duration": 1
          }
        ],
        "known_options": {
          "composting": {
            "score": 1.2,
            "soil_health": 0.8
          },
          "irrigation": {
            "score": 1.0,
            "water_efficiency": 0.7
          },
          "market_delivery": {
            "score": 0.8,
            "credits": 0.6
          }
        },
        "relationships": {}
      },
      "goals": [
        {
          "id": "sustain_harvest",
          "importance": 3,
          "score": 3
        },
        {
          "id": "coordinate_workers",
          "importance": 2,
          "score": 2
        }
      ],
      "behaviors": [
        {
          "name": "remember",
          "params": {
            "category": "farm_context",
            "content": {
              "note": "The farmer tracks crops, water, soil, and market needs."
            },
            "tags": [
              "farm",
              "initial"
            ]
          }
        },
        {
          "name": "prioritize",
          "params": {
            "source_path": "memory.goals",
            "item_attribute_weights": {
              "importance": 1.0,
              "score": 1.0
            }
          }
        },
        {
          "name": "choose_goal",
          "params": {
            "source_path": "memory.latest_priorities.items",
            "current_goal_path": "state.current_goal"
          }
        },
        {
          "name": "evaluate",
          "params": {
            "category": "farm_strategy",
            "candidate_options": [
              "composting",
              "irrigation",
              "market_delivery"
            ],
            "known_options_path": "memory.known_options",
            "adoption_threshold": 0.8,
            "write_decision_path": "memory.latest_strategy_decision"
          }
        },
        {
          "name": "adopt",
          "params": {
            "option_id": "composting",
            "category": "soil_strategy",
            "adoption_strength": 0.4,
            "state_updates_on_adopt": {
              "soil_practice": "composting"
            }
          }
        },
        {
          "name": "communicate",
          "params": {
            "message": "field_status_update",
            "target_agent_id": "water_manager_1",
            "max_recipients": 1
          }
        },
        {
          "name": "cooperate",
          "params": {
            "target_agent_id": "soil_steward_1",
            "goal": "sustain_harvest",
            "effort": 1.0
          }
        },
        {
          "name": "harvest",
          "params": {}
        },
        {
          "name": "build",
          "params": {
            "structure_id": "storage_shed",
            "structure_type": "storage",
            "material_cost": {
              "wood": 1.0
            },
            "work_required": 4.0,
            "work_amount": 1.0,
            "initial_capacity": 5.0,
            "initial_durability": 8.0
          }
        }
      ],
      "policy": {
        "type": "rule_policy",
        "params": {
          "selection_strategy": "highest_score",
          "rules": [
            {
              "id": "farmer_choose_goal",
              "behavior_name": "choose_goal",
              "score_delta": 5.0,
              "priority_delta": 2.0
            },
            {
              "id": "farmer_prioritize",
              "behavior_name": "prioritize",
              "score_delta": 4.0,
              "priority_delta": 1.0
            },
            {
              "id": "farmer_harvest",
              "behavior_name": "harvest",
              "conditions": {
                "state.energy": {
                  "min": 2
                }
              },
              "score_delta": 3.0
            },
            {
              "id": "farmer_communicate",
              "behavior_name": "communicate",
              "score_delta": 2.0
            },
            {
              "id": "farmer_cooperate",
              "behavior_name": "cooperate",
              "score_delta": 1.5
            },
            {
              "id": "farmer_evaluate",
              "behavior_name": "evaluate",
              "score_delta": 1.0
            },
            {
              "id": "farmer_build",
              "behavior_name": "build",
              "conditions": {
                "state.inventory.wood": {
                  "min": 1
                }
              },
              "score_delta": 0.8
            },
            {
              "id": "farmer_remember",
              "behavior_name": "remember",
              "score_delta": 0.2
            },
            {
              "id": "farmer_adopt",
              "behavior_name": "adopt",
              "score_delta": 0.1
            }
          ]
        }
      },
      "alive": true,
      "metadata": {
        "role": "coordination",
        "example_note": "Primary coordinating farm agent."
      }
    },
    {
      "id": "pollinator_1",
      "type": "pollinator",
      "position": [
        3.0,
        7.5
      ],
      "state": {
        "energy": 8,
        "credits": 1,
        "pollination_signal": 0.75,
        "inventory": {
          "nectar": 2
        }
      },
      "memory": {
        "goals": [
          {
            "id": "increase_pollination",
            "description": "Support crop growth by moving information and effort through the field.",
            "importance": 3,
            "score": 2.5,
            "duration": 1
          }
        ],
        "known_options": {
          "flower_route": {
            "score": 1.0
          },
          "cooperate": {
            "score": 0.9
          }
        },
        "relationships": {}
      },
      "goals": [
        {
          "id": "increase_pollination",
          "importance": 3,
          "score": 2.5
        }
      ],
      "behaviors": [
        {
          "name": "remember",
          "params": {
            "category": "pollination_context",
            "content": {
              "note": "The pollinator observes flowering resources and nearby agent signals."
            },
            "tags": [
              "pollination"
            ]
          }
        },
        {
          "name": "prioritize",
          "params": {
            "source_path": "memory.goals"
          }
        },
        {
          "name": "choose_goal",
          "params": {
            "source_path": "memory.latest_priorities.items",
            "current_goal_path": "state.current_goal"
          }
        },
        {
          "name": "communicate",
          "params": {
            "message": "pollination_status",
            "target_agent_id": "farmer_1",
            "max_recipients": 1
          }
        },
        {
          "name": "cooperate",
          "params": {
            "target_agent_id": "farmer_1",
            "goal": "sustain_harvest",
            "effort": 0.8
          }
        },
        {
          "name": "collect",
          "params": {}
        },
        {
          "name": "update_belief",
          "params": {
            "belief_id": "field_is_flowering",
            "proposition": "The field currently supports pollination.",
            "evidence_path": "state.pollination_signal",
            "learning_rate": 0.25,
            "write_belief_path": "memory.latest_pollination_belief"
          }
        }
      ],
      "policy": {
        "type": "rule_policy",
        "params": {
          "selection_strategy": "highest_score",
          "rules": [
            {
              "behavior_name": "choose_goal",
              "score_delta": 4.0
            },
            {
              "behavior_name": "communicate",
              "score_delta": 3.0
            },
            {
              "behavior_name": "cooperate",
              "score_delta": 2.0
            },
            {
              "behavior_name": "collect",
              "score_delta": 1.0
            },
            {
              "behavior_name": "update_belief",
              "score_delta": 0.8
            },
            {
              "behavior_name": "remember",
              "score_delta": 0.3
            },
            {
              "behavior_name": "prioritize",
              "score_delta": 0.2
            }
          ]
        }
      },
      "alive": true,
      "metadata": {
        "role": "ecosystem_support"
      }
    },
    {
      "id": "soil_steward_1",
      "type": "soil_steward",
      "position": [
        5.0,
        4.0
      ],
      "state": {
        "energy": 9,
        "credits": 2,
        "soil_health_signal": 0.65,
        "inventory": {
          "compost": 5,
          "tools": 1
        }
      },
      "memory": {
        "goals": [
          {
            "id": "restore_soil",
            "description": "Preserve soil nutrients and stabilize farm output.",
            "importance": 3,
            "score": 3,
            "duration": 2
          }
        ],
        "known_options": {
          "composting": {
            "score": 1.3,
            "soil_health": 0.9
          },
          "cover_crops": {
            "score": 1.0,
            "soil_health": 0.8
          }
        },
        "relationships": {}
      },
      "goals": [
        {
          "id": "restore_soil",
          "importance": 3,
          "score": 3
        }
      ],
      "behaviors": [
        {
          "name": "remember",
          "params": {
            "category": "soil_context",
            "content": {
              "note": "The soil steward monitors nutrient depletion and restoration."
            },
            "tags": [
              "soil",
              "nutrients"
            ]
          }
        },
        {
          "name": "prioritize",
          "params": {
            "source_path": "memory.goals"
          }
        },
        {
          "name": "choose_goal",
          "params": {}
        },
        {
          "name": "evaluate",
          "params": {
            "category": "soil_strategy",
            "candidate_options": [
              "composting",
              "cover_crops"
            ],
            "known_options_path": "memory.known_options",
            "adoption_threshold": 0.7
          }
        },
        {
          "name": "adopt",
          "params": {
            "option_id": "cover_crops",
            "category": "soil_strategy",
            "adoption_strength": 0.3,
            "state_updates_on_adopt": {
              "soil_practice": "cover_crops"
            }
          }
        },
        {
          "name": "communicate",
          "params": {
            "message": "soil_health_update",
            "target_agent_id": "farmer_1",
            "max_recipients": 1
          }
        },
        {
          "name": "cooperate",
          "params": {
            "target_agent_id": "farmer_1",
            "goal": "restore_soil",
            "effort": 1.0
          }
        },
        {
          "name": "update_belief",
          "params": {
            "belief_id": "soil_is_resilient",
            "proposition": "Soil quality can sustain future harvests.",
            "evidence_path": "state.soil_health_signal",
            "learning_rate": 0.2,
            "write_belief_path": "memory.latest_soil_belief"
          }
        }
      ],
      "policy": {
        "type": "rule_policy",
        "params": {
          "selection_strategy": "highest_score",
          "rules": [
            {
              "behavior_name": "choose_goal",
              "score_delta": 4.0
            },
            {
              "behavior_name": "evaluate",
              "score_delta": 3.0
            },
            {
              "behavior_name": "communicate",
              "score_delta": 2.0
            },
            {
              "behavior_name": "cooperate",
              "score_delta": 1.5
            },
            {
              "behavior_name": "update_belief",
              "score_delta": 1.0
            },
            {
              "behavior_name": "adopt",
              "score_delta": 0.5
            },
            {
              "behavior_name": "remember",
              "score_delta": 0.2
            },
            {
              "behavior_name": "prioritize",
              "score_delta": 0.2
            }
          ]
        }
      },
      "alive": true,
      "metadata": {
        "role": "resource_health"
      }
    },
    {
      "id": "water_manager_1",
      "type": "water_manager",
      "position": [
        7.5,
        2.0
      ],
      "state": {
        "energy": 9,
        "credits": 3,
        "water_pressure_signal": 0.55,
        "inventory": {
          "pipes": 3,
          "tools": 2
        }
      },
      "memory": {
        "goals": [
          {
            "id": "balance_water",
            "description": "Keep water available without overusing reserves.",
            "importance": 3,
            "score": 2.8,
            "duration": 2
          }
        ],
        "known_options": {
          "drip_irrigation": {
            "score": 1.2,
            "water_efficiency": 0.9
          },
          "rationing": {
            "score": 0.7,
            "water_efficiency": 0.6
          }
        },
        "relationships": {}
      },
      "goals": [
        {
          "id": "balance_water",
          "importance": 3,
          "score": 2.8
        }
      ],
      "behaviors": [
        {
          "name": "remember",
          "params": {
            "category": "water_context",
            "content": {
              "note": "The water manager observes irrigation pressure and resource levels."
            },
            "tags": [
              "water"
            ]
          }
        },
        {
          "name": "prioritize",
          "params": {
            "source_path": "memory.goals"
          }
        },
        {
          "name": "choose_goal",
          "params": {}
        },
        {
          "name": "evaluate",
          "params": {
            "category": "water_strategy",
            "candidate_options": [
              "drip_irrigation",
              "rationing"
            ],
            "known_options_path": "memory.known_options",
            "adoption_threshold": 0.75
          }
        },
        {
          "name": "adopt",
          "params": {
            "option_id": "drip_irrigation",
            "category": "water_strategy",
            "adoption_strength": 0.4,
            "state_updates_on_adopt": {
              "water_practice": "drip_irrigation"
            }
          }
        },
        {
          "name": "communicate",
          "params": {
            "message": "water_status_update",
            "target_agent_id": "farmer_1",
            "max_recipients": 1
          }
        },
        {
          "name": "cooperate",
          "params": {
            "target_agent_id": "farmer_1",
            "goal": "balance_water",
            "effort": 1.0
          }
        },
        {
          "name": "build",
          "params": {
            "structure_id": "drip_irrigation_line",
            "structure_type": "irrigation",
            "material_cost": {
              "pipes": 1.0
            },
            "work_required": 5.0,
            "work_amount": 1.0,
            "initial_capacity": 4.0,
            "initial_durability": 6.0
          }
        },
        {
          "name": "update_belief",
          "params": {
            "belief_id": "water_supply_is_stable",
            "proposition": "The farm has enough water pressure for current crops.",
            "evidence_path": "state.water_pressure_signal",
            "learning_rate": 0.25,
            "write_belief_path": "memory.latest_water_belief"
          }
        }
      ],
      "policy": {
        "type": "rule_policy",
        "params": {
          "selection_strategy": "highest_score",
          "rules": [
            {
              "behavior_name": "choose_goal",
              "score_delta": 4.0
            },
            {
              "behavior_name": "evaluate",
              "score_delta": 3.0
            },
            {
              "behavior_name": "communicate",
              "score_delta": 2.0
            },
            {
              "behavior_name": "cooperate",
              "score_delta": 1.5
            },
            {
              "behavior_name": "build",
              "conditions": {
                "state.inventory.pipes": {
                  "min": 1
                }
              },
              "score_delta": 1.0
            },
            {
              "behavior_name": "update_belief",
              "score_delta": 0.8
            },
            {
              "behavior_name": "adopt",
              "score_delta": 0.4
            },
            {
              "behavior_name": "remember",
              "score_delta": 0.2
            },
            {
              "behavior_name": "prioritize",
              "score_delta": 0.2
            }
          ]
        }
      },
      "alive": true,
      "metadata": {
        "role": "infrastructure"
      }
    },
    {
      "id": "market_vendor_1",
      "type": "market_vendor",
      "position": [
        8.0,
        8.0
      ],
      "state": {
        "energy": 8,
        "credits": 12,
        "demand_signal": 0.7,
        "inventory": {
          "crates": 4,
          "produce": 1
        }
      },
      "memory": {
        "goals": [
          {
            "id": "match_market_demand",
            "description": "Track demand and share price signals with the farm.",
            "importance": 2,
            "score": 2.4,
            "duration": 1
          }
        ],
        "known_options": {
          "direct_sales": {
            "score": 1.0,
            "credits": 0.9
          },
          "community_supported_agriculture": {
            "score": 0.9,
            "trust": 0.8
          }
        },
        "relationships": {}
      },
      "goals": [
        {
          "id": "match_market_demand",
          "importance": 2,
          "score": 2.4
        }
      ],
      "behaviors": [
        {
          "name": "remember",
          "params": {
            "category": "market_context",
            "content": {
              "note": "The vendor tracks demand and coordinates distribution."
            },
            "tags": [
              "market"
            ]
          }
        },
        {
          "name": "prioritize",
          "params": {
            "source_path": "memory.goals"
          }
        },
        {
          "name": "choose_goal",
          "params": {}
        },
        {
          "name": "evaluate",
          "params": {
            "category": "market_strategy",
            "candidate_options": [
              "direct_sales",
              "community_supported_agriculture"
            ],
            "known_options_path": "memory.known_options",
            "adoption_threshold": 0.75
          }
        },
        {
          "name": "communicate",
          "params": {
            "message": "market_demand_update",
            "target_agent_id": "farmer_1",
            "max_recipients": 1
          }
        },
        {
          "name": "cooperate",
          "params": {
            "target_agent_id": "farmer_1",
            "goal": "match_market_demand",
            "effort": 0.7
          }
        },
        {
          "name": "collect",
          "params": {}
        },
        {
          "name": "update_belief",
          "params": {
            "belief_id": "market_demand_is_high",
            "proposition": "Market demand is strong enough to reward harvest activity.",
            "evidence_path": "state.demand_signal",
            "learning_rate": 0.25,
            "write_belief_path": "memory.latest_market_belief"
          }
        }
      ],
      "policy": {
        "type": "rule_policy",
        "params": {
          "selection_strategy": "highest_score",
          "rules": [
            {
              "behavior_name": "choose_goal",
              "score_delta": 4.0
            },
            {
              "behavior_name": "communicate",
              "score_delta": 3.0
            },
            {
              "behavior_name": "evaluate",
              "score_delta": 2.0
            },
            {
              "behavior_name": "cooperate",
              "score_delta": 1.5
            },
            {
              "behavior_name": "collect",
              "score_delta": 1.0
            },
            {
              "behavior_name": "update_belief",
              "score_delta": 0.8
            },
            {
              "behavior_name": "remember",
              "score_delta": 0.2
            },
            {
              "behavior_name": "prioritize",
              "score_delta": 0.2
            }
          ]
        }
      },
      "alive": true,
      "metadata": {
        "role": "market_signal"
      }
    }
  ],
  "resources": [
    {
      "id": "crop_patch_1",
      "type": "crops",
      "amount": 18,
      "position": [
        4.0,
        5.0
      ],
      "regeneration_rate": 0.4,
      "max_amount": 30,
      "metadata": {
        "renewable": true,
        "farm_layer": "field"
      }
    },
    {
      "id": "water_reserve_1",
      "type": "water",
      "amount": 24,
      "position": [
        7.0,
        1.5
      ],
      "regeneration_rate": 0.2,
      "max_amount": 40,
      "metadata": {
        "renewable": true,
        "farm_layer": "irrigation"
      }
    },
    {
      "id": "soil_nutrients_1",
      "type": "soil_nutrients",
      "amount": 16,
      "position": [
        5.0,
        4.5
      ],
      "regeneration_rate": 0.1,
      "max_amount": 25,
      "metadata": {
        "renewable": true,
        "farm_layer": "soil"
      }
    },
    {
      "id": "seed_bank_1",
      "type": "seeds",
      "amount": 10,
      "position": [
        2.0,
        3.0
      ],
      "regeneration_rate": 0,
      "max_amount": 20,
      "metadata": {
        "renewable": false,
        "farm_layer": "storage"
      }
    },
    {
      "id": "market_demand_1",
      "type": "market_demand",
      "amount": 14,
      "position": [
        8.5,
        8.5
      ],
      "regeneration_rate": 0.1,
      "max_amount": 25,
      "metadata": {
        "renewable": true,
        "farm_layer": "market"
      }
    }
  ],
  "events": [
    {
      "id": "dry_spell",
      "name": "dry_spell",
      "trigger_step": 20,
      "payload": {
        "description": "A dry spell increases the importance of water coordination.",
        "signals": {
          "water_pressure": -0.2,
          "soil_moisture": -0.2
        }
      },
      "enabled": true,
      "repeat_interval": null,
      "target_agent_ids": [
        "farmer_1",
        "water_manager_1",
        "soil_steward_1"
      ],
      "target_resource_ids": [
        "water_reserve_1",
        "soil_nutrients_1"
      ],
      "metadata": {
        "narrative_hint": "Environmental pressure tests coordination."
      }
    },
    {
      "id": "market_surge",
      "name": "market_surge",
      "trigger_step": 40,
      "payload": {
        "description": "Market demand rises, increasing the value of harvest and distribution coordination.",
        "signals": {
          "demand": 0.25
        }
      },
      "enabled": true,
      "repeat_interval": null,
      "target_agent_ids": [
        "farmer_1",
        "market_vendor_1"
      ],
      "target_resource_ids": [
        "market_demand_1"
      ],
      "metadata": {
        "narrative_hint": "Economic pressure rewards coordination."
      }
    }
  ],
  "metrics": [
    {
      "name": "diversity",
      "params": {
        "collection": "agents",
        "group_by_path": "type"
      },
      "enabled": true,
      "metadata": {
        "display": "Agent type diversity"
      }
    },
    {
      "name": "entropy",
      "params": {
        "collection": "agents",
        "value_path": "type"
      },
      "enabled": true,
      "metadata": {
        "display": "Agent type entropy"
      }
    },
    {
      "name": "stability",
      "params": {
        "collection": "agents",
        "group_by_path": "type"
      },
      "enabled": true,
      "metadata": {
        "display": "Population stability"
      }
    },
    {
      "name": "interestingness",
      "params": {
        "collection": "agents",
        "group_by_path": "type"
      },
      "enabled": true,
      "metadata": {
        "display": "Composite interestingness"
      }
    }
  ],
  "metadata": {
    "example": true,
    "domain": "farm",
    "created_for": "WorldSmithAI Gradio demo",
    "design_note": "No farm-specific runtime classes are required. The example uses generic agents, resources, behaviors, policies, metrics, and events."
  }
}