{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T06:19:07Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 1,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T16:30:00Z",
      "ingestedAt": "2026-10-05T13:18:05+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:51:57+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q23397",
    "registryId": "vr.tr.lake",
    "name": "lake",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.PLC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q23397/",
  "model": {
    "registry_id": "vr.tr.lake",
    "name": "lake",
    "purpose": "Let an agent handle lakes by name, size, depth, water quality, uses, protection and safety.",
    "definition": "A body of relatively still water occupying a basin on land, larger than a pond, natural or artificial, including sacred lakes, reservoirs and bathing lakes.",
    "what_it_is_for": "Lakes supply water, support ecosystems, fisheries and recreation.",
    "affordances": [
      "swim, boat and fish, where allowed",
      "monitor water quality",
      "protect habitats",
      "manage water levels"
    ],
    "distinguishing_features": [
      "Still water in a basin",
      "Larger than a pond (definitions vary)",
      "Natural or artificial",
      "Can freeze, stratify and bloom with algae"
    ],
    "appearance": "An expanse of open still water surrounded by land.",
    "visual_identification": [
      "Enclosed standing water",
      "Names on maps and gazetteers",
      "Bathing water signs"
    ],
    "physical_properties": [
      {
        "quantity": "largest by area",
        "typical_range": "about 371000",
        "unit": "km2",
        "note": "Caspian Sea, often classed as a lake"
      },
      {
        "quantity": "deepest",
        "typical_range": "about 1642",
        "unit": "m",
        "note": "Lake Baikal"
      }
    ],
    "families_and_kinds": [
      "tectonic, glacial and volcanic lakes",
      "reservoirs",
      "saline lakes",
      "sacred lakes",
      "artificial balancing and bathing lakes"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "body of water",
        "why": "standing water"
      },
      {
        "relation": "is a kind of",
        "target": "landform",
        "why": "basin"
      },
      {
        "relation": "provides",
        "target": "water",
        "why": "supply"
      },
      {
        "relation": "is protected by",
        "target": "water law",
        "why": "rules"
      }
    ],
    "identifiers": [
      {
        "scheme": "water body id",
        "value_or_pattern": "national or WFD code",
        "note": "management"
      },
      {
        "scheme": "GeoNames id",
        "value_or_pattern": "numeric",
        "note": "gazetteer"
      }
    ],
    "standards_and_regulation": [
      "EU Water Framework Directive",
      "Bathing Water Directive",
      "Local boating and fishing rules"
    ],
    "failure_modes_and_hazards": [
      "Drowning and cold water shock",
      "Toxic algal blooms",
      "Thin ice"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Measure and report a lake's water level, temperature and quality.",
        "Describe a lake from maps, public records and visible features.",
        "Warn people about posted bathing bans, thin ice or algal blooms."
      ],
      "must_not": [
        "Discharge waste, fuel or contaminated water into a lake.",
        "Release fish, plants or other organisms that are not native to the lake.",
        "Operate the outlet or dam of a reservoir without authority from its operator.",
        "Disturb nesting birds or protected shoreline habitat.",
        "Treat a sacred lake as an ordinary leisure site against the wishes of the community that holds it."
      ],
      "requires_human": [
        "Declaring a lake safe or unsafe for bathing or drinking water supply.",
        "Changing the water level of a reservoir that people downstream depend on."
      ]
    },
    "ethics": {
      "considerations": [
        "Lakes are shared by people, wildlife and downstream users; pollution harms them all at once.",
        "Some lakes are sacred, and their use must respect the communities that hold them."
      ],
      "affected_parties": [
        "People who drink, bathe or fish in it",
        "Aquatic wildlife",
        "Communities living downstream"
      ]
    },
    "owners": {
      "steward": "The public or the landowner; water authorities regulate its use and reservoir operators control the dams.",
      "master_systems": [
        "Water body registers kept by environmental agencies"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q23397: lake",
      "url": "https://www.wikidata.org/wiki/Q23397",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Lake",
      "url": "https://en.wikipedia.org/wiki/Lake",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "identity",
        "name": "Identity",
        "description": "Which lake.",
        "rationale": "Names and ids.",
        "layers": [
          {
            "id": "name",
            "name": "Name",
            "description": "Official name.",
            "findings": [
              {
                "id": "name-finding",
                "name": "Name",
                "description": "Name and ids.",
                "questions": [
                  {
                    "text": "What is the lake name and id?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is it natural or artificial?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "size",
            "name": "Size",
            "description": "Area and depth.",
            "findings": [
              {
                "id": "size-finding",
                "name": "Size",
                "description": "Size and depth.",
                "questions": [
                  {
                    "text": "What are its area and depth?",
                    "kind": "measurement"
                  },
                  {
                    "text": "From which survey?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "water",
        "name": "Water",
        "description": "Quality and levels.",
        "rationale": "Quality decides safety.",
        "layers": [
          {
            "id": "quality",
            "name": "Quality",
            "description": "Bathing and ecology.",
            "findings": [
              {
                "id": "quality-finding",
                "name": "Quality",
                "description": "Water quality.",
                "questions": [
                  {
                    "text": "What is the current water quality?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Is there an algal bloom warning?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "levels",
            "name": "Levels",
            "description": "Management.",
            "findings": [
              {
                "id": "levels-finding",
                "name": "Levels",
                "description": "Water levels.",
                "questions": [
                  {
                    "text": "How are levels managed?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is there drought or flood risk?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "use",
        "name": "Use",
        "description": "Recreation and supply.",
        "rationale": "Uses need rules.",
        "layers": [
          {
            "id": "recreation",
            "name": "Recreation",
            "description": "Swimming, boating.",
            "findings": [
              {
                "id": "recreation-finding",
                "name": "Recreation",
                "description": "Recreation rules.",
                "questions": [
                  {
                    "text": "Is swimming or boating allowed?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Which permits are needed?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "supply",
            "name": "Supply",
            "description": "Drinking water.",
            "findings": [
              {
                "id": "supply-finding",
                "name": "Supply",
                "description": "Water supply use.",
                "questions": [
                  {
                    "text": "Is it a drinking water source?",
                    "kind": "definition"
                  },
                  {
                    "text": "What restrictions apply?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "safety-and-culture",
        "name": "Safety and culture",
        "description": "Risks and meaning.",
        "rationale": "Safety and respect.",
        "layers": [
          {
            "id": "safety",
            "name": "Safety",
            "description": "Cold water and ice.",
            "findings": [
              {
                "id": "safety-finding",
                "name": "Safety",
                "description": "Safety advice.",
                "questions": [
                  {
                    "text": "What safety advice applies?",
                    "kind": "action"
                  },
                  {
                    "text": "Is ice safe?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "sacred",
            "name": "Sacred status",
            "description": "Cultural meaning.",
            "findings": [
              {
                "id": "sacred-finding",
                "name": "Sacred",
                "description": "Cultural meaning.",
                "questions": [
                  {
                    "text": "Is the lake sacred to local people?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Are there restrictions?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should lakes be instances with water body ids?",
    "How should size thresholds be defined?",
    "How should sacred status be respected?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}