{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T09:44:22Z",
    "providers": [
      "Codex"
    ],
    "breadth": "recalled by Codex without web access - no source was read",
    "missingProviders": [],
    "pass": 2,
    "cost": {
      "grok": {
        "seconds": 21.3,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a094ff-e617-73c2-b192-0b030f8d2a3d\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: fixture\nSense to describe: an object firmly fixed in place (especially in a household)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this bat",
        "usd": 0.0,
        "recall": true
      },
      "codex": {
        "seconds": 69.2,
        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a094ff-e611-7581-b642-ccc81d2b1e62\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: fixture\nRegistry id: vr.tr.fixture\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: an object firmly fixed in place (especially in a household)\nNam"
      }
    },
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T08:42:53+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "failure_modes_and_hazards",
        "owners",
        "visual_identification"
      ]
    },
    "revisions": [
      {
        "at": "2026-10-08T18:43:46+00:00",
        "engine": "codex",
        "fields": [
          "agent_conduct",
          "ethics",
          "owners"
        ],
        "answering_review": "bfb5492c5c29e43c22a3ca4d968477bcd8269d3f7afa6b6e9c106e0b44bd9758"
      }
    ],
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-08T18:54:35+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: WordNet gloss",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-FIXTURE",
    "registryId": "vr.tr.fixture",
    "name": "fixture",
    "version": "0.1.0-research.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/fixture/",
  "model": {
    "registry_id": "vr.tr.fixture",
    "name": "fixture",
    "purpose": "Enable an agent to recognise a fixture, assess its attachment and service condition, and determine what inspection, use, maintenance or removal is appropriate.",
    "definition": "A fixture is a physical object securely attached to a building, another structure, or the ground and intended to remain in its installed position during ordinary use.",
    "scope_statement": "This model owns fixture as the physical kind registered by vr.tr.fixture in PHY / PHY.OBJ: an object firmly fixed in place, especially in a household, with emphasis on its attachment to a supporting structure and the consequences of that attachment.",
    "in_scope": [
      "Physical evidence that an object is firmly fixed in its installed position",
      "Attachment methods, mounting interfaces and supporting substrates",
      "Installed position, access and clearance constraints",
      "Intended service and any connections affected by installation",
      "Attachment condition and requirements for maintenance, detachment or replacement"
    ],
    "out_of_scope": [
      "Movable furnishings and equipment merely resting in position",
      "The building or supporting structure as a whole",
      "Detailed operating models of specialised objects such as luminaires, taps or appliances",
      "Legal classification as real property, ownership and tenancy rights",
      "Sports fixtures, scheduled events and software test fixtures",
      "Manufacturing jigs and workholding fixtures as a separate functional concept"
    ],
    "distinguishing_features": [
      "Look for a physical attachment that holds the object in its installed position; weight or habitual placement alone does not establish fixture status.",
      "Determine whether relocation requires releasing, cutting or otherwise undoing an attachment rather than simply lifting or rolling the object away.",
      "Identify a supporting surface or structure and a distinguishable object attached to it, rather than treating every integral building component as a fixture.",
      "Distinguish fixed installation from a service cable or hose that connects an otherwise movable object.",
      "Use the registered physical sense of fixture without assuming that it establishes the object's legal property status."
    ],
    "characteristics": [
      {
        "name": "Fixture subtype and intended service",
        "kind": "category",
        "unit_or_values": "Lighting, sanitary, storage, support, decorative or another specified service",
        "why_it_matters": "Determines which specialised model and service-specific checks supplement the attachment model."
      },
      {
        "name": "Supporting substrate",
        "kind": "relation",
        "unit_or_values": "Identified wall, floor, ceiling, frame or other support, with substrate material where known",
        "why_it_matters": "Attachment suitability depends on what receives the fixing."
      },
      {
        "name": "Attachment method",
        "kind": "category",
        "unit_or_values": "Screwed, bolted, anchored, bonded, welded, embedded, clamped, mixed or unknown",
        "why_it_matters": "Directs inspection and determines how attachment can be released."
      },
      {
        "name": "Installed position and orientation",
        "kind": "relation",
        "unit_or_values": "Location relative to a named support and reference frame",
        "why_it_matters": "A fixture's usable position depends on its installation."
      },
      {
        "name": "Fixture mass",
        "kind": "measurement",
        "unit_or_values": "kg; measured or documented, with uncertainty",
        "why_it_matters": "Informs support assessment and handling during removal."
      },
      {
        "name": "Documented permitted loading",
        "kind": "measurement",
        "unit_or_values": "N and N·m, with direction, application point and applicable installation conditions; unknown if unsupported",
        "why_it_matters": "Connects permitted use to evidence about the installed attachment."
      },
      {
        "name": "Attachment condition",
        "kind": "state",
        "unit_or_values": "No defect observed, loose, displaced, corroded, cracked, partly detached, inaccessible or unassessed",
        "why_it_matters": "Separates visible installation condition from assumptions about secure fixing."
      },
      {
        "name": "Service connections",
        "kind": "relation",
        "unit_or_values": "Identified electrical, water, drainage, gas, ventilation or other connections; none or unknown",
        "why_it_matters": "Connections can constrain use, isolation and removal independently of the fixings."
      },
      {
        "name": "Detachment reversibility",
        "kind": "category",
        "unit_or_values": "Releasable without expected damage, finish repair expected, destructive separation expected or unknown",
        "why_it_matters": "Makes the physical consequences of relocation explicit."
      }
    ],
    "affordances": [
      "Classify an installed object as a fixture using observed attachment evidence.",
      "Locate its mounting points, support and connected services.",
      "Assess whether a proposed use fits documented installation and loading constraints.",
      "Inspect for movement, fixing deterioration and damage around mounting points.",
      "Plan maintenance access, service isolation and temporary support where applicable.",
      "Plan detachment or replacement, including repair of the vacated mounting interface."
    ],
    "agent_conduct": {
      "may": [
        "Inventory and report the condition of fixtures in a building for its owner or manager.",
        "Explain the general distinction between fixtures and movable items in property transfers."
      ],
      "must_not": [
        "Remove or alter fixtures in a property without the owner's authority.",
        "Work on fixtures connected to gas, water or electricity without authorization and compliance with applicable safety and professional qualification requirements.",
        "Misstate which fixtures are included when describing a property for sale or rent.",
        "Give binding legal advice on whether an item is a fixture in a specific dispute."
      ],
      "requires_human": [
        "Removing fixtures when a property is sold or a tenancy ends.",
        "Deciding a dispute about whether an item counts as a fixture."
      ]
    },
    "ethics": {
      "considerations": [
        "Physical attachment alone does not determine ownership when property changes hands; ownership depends on applicable law and agreements.",
        "Poorly secured fixtures can fall and injure people."
      ],
      "affected_parties": [
        "Owners and buyers have interests in fixtures.",
        "Tenants have interests in fixtures.",
        "Occupants and visitors can be affected by fixture safety."
      ]
    },
    "owners": {
      "steward": "The person or body responsible for the fixture under applicable law and agreements; physical attachment alone does not establish ownership.",
      "master_systems": [
        "A land registry or cadastre may hold relevant property records."
      ]
    },
    "visual_identification": [
      "An item bolted, built in or plumbed into a building, such as a fitted sink, radiator or built-in cupboard."
    ],
    "failure_modes_and_hazards": [
      "Badly fixed items can fall and injure people.",
      "Removing connected fixtures can cause leaks, gas escapes or electric shock."
    ],
    "what_it_is_for": [
      "Fixtures occur in buildings, outdoor installations and infrastructure where an object must remain attached during ordinary use.",
      "They support functions such as lighting, sanitation, storage, access control and equipment mounting.",
      "Inspection and maintenance consider both the installed object and its attachment to the supporting structure."
    ],
    "facets_not_applicable": {
      "interfaces": "No single standard or regulation applies to fixtures as a whole without specifying the fixture type, function and installation jurisdiction."
    }
  },
  "sources": [
    {
      "id": "oewn",
      "title": "Open English WordNet 2024, synset oewn-03359459-n",
      "url": "https://en-word.net/id/oewn-03359459-n",
      "what_it_supports": "sense and gloss of the concept",
      "url_status": "live",
      "checked_by": "http 200"
    },
    {
      "id": "wiktionary-en",
      "title": "Wiktionary: fixture",
      "url": "https://en.wiktionary.org/wiki/fixture",
      "what_it_supports": "word senses and usage",
      "url_status": "live",
      "checked_by": "http 200"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "fixture-identity",
        "name": "Fixture identity",
        "description": "Establishes whether the object falls within the registered physical sense of fixture.",
        "rationale": "Fixed installation must be distinguished from mere placement, integral construction and unrelated meanings of the word.",
        "layers": [
          {
            "id": "fixed-placement",
            "name": "Fixed placement",
            "description": "Examines the evidence that attachment holds the object in place.",
            "findings": [
              {
                "id": "attachment-evidence",
                "name": "Attachment evidence",
                "description": "Records the observed or documented basis for treating the object as firmly fixed.",
                "questions": [
                  {
                    "text": "What physical attachment holds this object in its installed position?",
                    "kind": "definition",
                    "id": "attachment-evidence-q01"
                  },
                  {
                    "text": "What must be released or broken to relocate it, beyond disconnecting a service lead or hose?",
                    "kind": "boundary",
                    "id": "attachment-evidence-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "object-support-boundary",
            "name": "Object and support boundary",
            "description": "Separates the fixture from its supporting construction and specialised service identity.",
            "findings": [
              {
                "id": "fixture-extent",
                "name": "Fixture extent",
                "description": "Identifies which parts constitute the attached object and which belong to adjacent models.",
                "questions": [
                  {
                    "text": "Where does the fixture end and the supporting wall, floor, ceiling or frame begin?",
                    "kind": "boundary",
                    "id": "fixture-extent-q01"
                  },
                  {
                    "text": "Which specialised object model describes its service beyond being fixed in place?",
                    "kind": "boundary",
                    "id": "fixture-extent-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "mounting-and-support",
        "name": "Mounting and support",
        "description": "Describes the fixing arrangement and how it transfers forces into a support.",
        "rationale": "A fixture's attachment cannot be judged from its visible body alone.",
        "layers": [
          {
            "id": "mounting-interface",
            "name": "Mounting interface",
            "description": "Identifies fixings, contact surfaces and the receiving substrate.",
            "findings": [
              {
                "id": "fixing-arrangement",
                "name": "Fixing arrangement",
                "description": "Records the installed attachment method and evidence for concealed mounting details.",
                "questions": [
                  {
                    "text": "What fixing types, quantities and positions connect the fixture to its support?",
                    "kind": "measurement",
                    "id": "fixing-arrangement-q01"
                  },
                  {
                    "text": "What inspection or installation record identifies the substrate and any concealed anchors or backing?",
                    "kind": "provenance",
                    "id": "fixing-arrangement-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "attachment-loading",
            "name": "Attachment loading",
            "description": "Relates fixture weight and use forces to the installed support arrangement.",
            "findings": [
              {
                "id": "load-transfer",
                "name": "Load transfer",
                "description": "Captures loading relevant to the mounting interface without assuming a generic fixture capacity.",
                "questions": [
                  {
                    "text": "What weight, contents, user forces or operating forces must this attachment carry, and in which directions?",
                    "kind": "measurement",
                    "id": "load-transfer-q01"
                  },
                  {
                    "text": "What evidence establishes permitted loading for this fixing arrangement in this substrate?",
                    "kind": "provenance",
                    "id": "load-transfer-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "installed-fit-and-service",
        "name": "Installed fit and service",
        "description": "Connects fixed position with intended use, access and service connections.",
        "rationale": "A firmly attached object may still be unusable or inaccessible because of where and how it is installed.",
        "layers": [
          {
            "id": "position-and-clearance",
            "name": "Position and clearance",
            "description": "Examines the spatial consequences of a fixed installation.",
            "findings": [
              {
                "id": "usable-installed-position",
                "name": "Usable installed position",
                "description": "Records placement and clearances needed for operation, cleaning and access to fixings.",
                "questions": [
                  {
                    "text": "What are the fixture's mounting height, orientation and clearances relative to relevant surfaces or moving parts?",
                    "kind": "measurement",
                    "id": "usable-installed-position-q01"
                  },
                  {
                    "text": "Can its intended users operate it and reach necessary cleaning or maintenance points in this position?",
                    "kind": "action",
                    "id": "usable-installed-position-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "service-interfaces",
            "name": "Service interfaces",
            "description": "Distinguishes mechanical attachment from connections serving the fixture's function.",
            "findings": [
              {
                "id": "connected-services",
                "name": "Connected services",
                "description": "Identifies connected services and how their interfaces constrain intervention.",
                "questions": [
                  {
                    "text": "Which service connections cross the fixture boundary, and which are independent of its mechanical support?",
                    "kind": "boundary",
                    "id": "connected-services-q01"
                  },
                  {
                    "text": "Where and how can each applicable service be isolated before the fixture is opened or detached?",
                    "kind": "action",
                    "id": "connected-services-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "attachment-condition",
        "name": "Attachment condition",
        "description": "Assesses deterioration of the installed fixing system and its surroundings.",
        "rationale": "The fixture may retain its intended function while its attachment becomes unreliable.",
        "layers": [
          {
            "id": "fixing-integrity",
            "name": "Fixing integrity",
            "description": "Examines movement and deterioration at attachment points.",
            "findings": [
              {
                "id": "attachment-defects",
                "name": "Attachment defects",
                "description": "Records observed looseness, separation or material damage without equating absence of visible damage with verified capacity.",
                "questions": [
                  {
                    "text": "What movement, gaps, missing fixings, corrosion or bond separation are visible at the mounting interface?",
                    "kind": "measurement",
                    "id": "attachment-defects-q01"
                  },
                  {
                    "text": "Which attachment points remain concealed or unassessed, and what evidence is available for their condition?",
                    "kind": "provenance",
                    "id": "attachment-defects-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "support-interface-damage",
            "name": "Support interface damage",
            "description": "Examines local support damage and changes that affect the installed fixing.",
            "findings": [
              {
                "id": "substrate-and-use-changes",
                "name": "Substrate and use changes",
                "description": "Relates damage around the attachment and changed use to the need for reassessment.",
                "questions": [
                  {
                    "text": "What cracking, crushing, moisture damage or deformation is present around the attachment points?",
                    "kind": "measurement",
                    "id": "substrate-and-use-changes-q01"
                  },
                  {
                    "text": "Have impact, changed loading or alterations to the support created a need to restrict use or reassess the installation?",
                    "kind": "action",
                    "id": "substrate-and-use-changes-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "intervention-and-removal",
        "name": "Intervention and removal",
        "description": "Plans work that changes or releases the fixture's installed attachment.",
        "rationale": "Detaching a fixture changes its support and may expose connected services or damage the receiving surface.",
        "layers": [
          {
            "id": "controlled-detachment",
            "name": "Controlled detachment",
            "description": "Establishes how the fixture can be supported and released.",
            "findings": [
              {
                "id": "release-sequence",
                "name": "Release sequence",
                "description": "Records the intervention sequence, access needs and expected consequences of releasing fixings.",
                "questions": [
                  {
                    "text": "In what sequence must covers, connections and fixings be released, and when is temporary support needed?",
                    "kind": "action",
                    "id": "release-sequence-q01"
                  },
                  {
                    "text": "Which bonds, embedded parts or finishes are expected to be damaged during separation?",
                    "kind": "boundary",
                    "id": "release-sequence-q02"
                  }
                ]
              }
            ]
          },
          {
            "id": "replacement-and-reinstatement",
            "name": "Replacement and reinstatement",
            "description": "Addresses reuse of mounting interfaces and the condition left after removal.",
            "findings": [
              {
                "id": "mounting-interface-disposition",
                "name": "Mounting interface disposition",
                "description": "Determines whether the existing interface can receive a replacement or needs repair.",
                "questions": [
                  {
                    "text": "What evidence supports reusing the existing holes, anchors or backing for the replacement fixture's geometry and loads?",
                    "kind": "provenance",
                    "id": "mounting-interface-disposition-q01"
                  },
                  {
                    "text": "What repair, sealing or service termination is needed at the former mounting location?",
                    "kind": "action",
                    "id": "mounting-interface-disposition-q02"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "evidence-and-external-alignment",
        "name": "Evidence and external alignment",
        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
        "layers": [
          {
            "id": "reported-evidence",
            "name": "Reported evidence",
            "description": "Findings from the breadth pass, kept separate from the structural claims.",
            "findings": [
              {
                "id": "evidence-confidence-notes",
                "name": "Check these first",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "This describes the physical household sense; legal classification as a fixture requires separate, jurisdiction-specific assessment.",
                  "No universal dimensions, capacities, identifier scheme, or technical standard applies to all fixtures; these depend on the particular kind.",
                  "The boundary includes overlap with built-in furniture and installed appliances rather than a mutually exclusive product category."
                ],
                "questions": [
                  {
                    "id": "evidence-confidence-notes-q01",
                    "text": "Which of these check these first hold for the sense of fixture this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-kinds",
                "name": "Kinds and varieties",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Fixed lighting fixtures",
                  "Plumbing fixtures",
                  "Built-in cabinets",
                  "Fixed shelving",
                  "Permanently mounted rails and accessory holders"
                ],
                "questions": [
                  {
                    "id": "evidence-kinds-q01",
                    "text": "Which of these kinds and varieties hold for the sense of fixture this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-real-world-use",
                "name": "Real-world use",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Providing fixed lighting in rooms and circulation spaces",
                  "Supplying and receiving water through installed sinks, basins, baths, and toilets",
                  "Providing storage through attached cabinets and shelving",
                  "Providing support or holding accessories through mounted rails, hooks, and brackets"
                ],
                "questions": [
                  {
                    "id": "evidence-real-world-use-q01",
                    "text": "Which of these real-world use hold for the sense of fixture this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-failure-modes-and-hazards",
                "name": "Failure modes and hazards",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "Anchors or fasteners can loosen or pull out, allowing the fixture to detach.",
                  "Overloading can damage the fixture, its connections, or its supporting substrate.",
                  "Corrosion, moisture damage, and material deterioration can weaken attachment points.",
                  "Electrical fixtures can present shock or fire hazards when wiring or insulation fails.",
                  "Plumbing fixtures can leak and cause water damage."
                ],
                "questions": [
                  {
                    "id": "evidence-failure-modes-and-hazards-q01",
                    "text": "Which of these failure modes and hazards hold for the sense of fixture this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-regional-variation",
                "name": "Regional variation",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  "The distinction between 'fixtures' and 'fittings' varies across regional usage and professional contexts.",
                  "Lighting equipment may be called a 'light fixture' or 'light fitting'; 'luminaire' is a technical term for a complete lighting unit."
                ],
                "questions": [
                  {
                    "id": "evidence-regional-variation-q01",
                    "text": "Which of these regional variation hold for the sense of fixture this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              },
              {
                "id": "evidence-neighbours",
                "name": "Neighbouring kinds and how to tell them apart",
                "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                "evidence": [
                  {
                    "name": "Furniture",
                    "difference": "Furniture is generally movable without undoing attachment to the building; built-in furniture can also be a fixture."
                  },
                  {
                    "name": "Fitting",
                    "difference": "A fitting is an installed accessory or connecting component and need not be firmly fixed in place; the terms overlap in ordinary usage."
                  },
                  {
                    "name": "Appliance",
                    "difference": "An appliance is classified by the task it performs; it is also a fixture only when its installation makes it a fixed object."
                  },
                  {
                    "name": "Fastener",
                    "difference": "A fastener makes an attachment, whereas a fixture is the installed object held by that attachment."
                  },
                  {
                    "name": "Manufacturing fixture",
                    "difference": "A manufacturing fixture locates and holds a workpiece during an operation, which is a separate sense of the word."
                  }
                ],
                "questions": [
                  {
                    "id": "evidence-neighbours-q01",
                    "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of fixture this model covers, and on what evidence?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Where should this registry draw the boundary between a fixture and an integral building component, especially for embedded or built-in objects?",
    "Do anti-tip restraints and readily releasable mounting brackets establish fixture status, or require a more specific attachment criterion?",
    "Which existing Vercy models already cover fixture subtypes, mounting hardware and supporting structures, and how should this model reference them?",
    "Which subtype-specific installation instructions, inspection methods and governing standards should supply evidence for attachment and service requirements?",
    "How should secure attachment be assessed when fixings or substrates are concealed and inspection could disturb the installation?"
  ],
  "statistics": {
    "bundles": 6,
    "layers": 11,
    "findings": 16,
    "questions": 26
  }
}
