{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T05:35:33Z", "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": "2026-10-05T13:21:32+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-06T19:51:59+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q36253", "registryId": "vr.tr.length", "name": "length", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q36253/", "model": { "registry_id": "vr.tr.length", "name": "length", "purpose": "Let an agent handle length with unit, method, uncertainty and what is measured, and separate it from distance between points.", "definition": "The measurement of the extent of something along its greatest dimension, or of a line or path, measured in metres; also used for specific lengths such as calibre or eye axial length.", "what_it_is_for": "Describing size and fit, in engineering, trade, medicine and daily life.", "affordances": [ "measure it, with rulers, callipers, lasers", "convert units", "specify tolerances", "compare sizes" ], "distinguishing_features": [ "Extent of an object or line", "Base SI quantity", "Distance is length between points", "Specialised lengths have domain definitions" ], "appearance": "A number with a length unit on drawings, labels and instruments.", "visual_identification": [ "Values in m, mm, in, ft", "Dimension lines on drawings", "Specialised lengths such as calibre" ], "physical_properties": [ { "quantity": "SI unit", "typical_range": "metre", "unit": "m", "note": "defined via the speed of light" } ], "families_and_kinds": [ "object length", "path length", "diameters and calibres", "anatomical lengths such as eye axial length" ], "related_models": [ { "relation": "is a kind of", "target": "physical quantity", "why": "base quantity" }, { "relation": "has kind", "target": "distance", "why": "between points" }, { "relation": "is measured in", "target": "metre", "why": "SI unit" }, { "relation": "relates to", "target": "curve", "why": "arc length" } ], "identifiers": [ { "scheme": "SI unit symbol", "value_or_pattern": "m", "note": "metre" } ], "standards_and_regulation": [ "SI Brochure", "ISO 286 tolerances", "Legal metrology rules for measuring instruments" ], "failure_modes_and_hazards": [ "Unit confusion", "Missing tolerances", "Measurement at the wrong temperature for precision parts" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Measure and report lengths with units and stated uncertainty.", "Convert lengths between units correctly." ], "must_not": [ "Report a length without its unit.", "Mix unit systems in calculations without converting.", "Falsify measurements in trade, construction or medicine." ], "requires_human": [ "Approving a part or structure based on measured lengths." ] }, "ethics": { "considerations": [ "Unit errors have destroyed spacecraft and injured patients.", "Measurements in trade must be honest." ], "affected_parties": [ "Users of measurements", "Patients", "Buyers" ] }, "owners": { "steward": "Nobody: a quantity; the international metrology bodies define the metre.", "master_systems": [] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q36253: length", "url": "https://www.wikidata.org/wiki/Q36253", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Length", "url": "https://en.wikipedia.org/wiki/Length", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "definition", "name": "Definition", "description": "What length is meant.", "rationale": "Which dimension is measured must be clear.", "layers": [ { "id": "dimension", "name": "Dimension", "description": "Which extent.", "findings": [ { "id": "dimension-finding", "name": "Dimension", "description": "Which dimension.", "questions": [ { "text": "Which dimension of the object is measured?", "kind": "definition" }, { "text": "Between which reference points?", "kind": "definition" } ] } ] }, { "id": "domain", "name": "Domain definition", "description": "Calibre, axial length.", "findings": [ { "id": "domain-finding", "name": "Domain", "description": "Domain-specific definition.", "questions": [ { "text": "Does a domain define this length specially?", "kind": "provenance" }, { "text": "Which standard?", "kind": "provenance" } ] } ] } ] }, { "id": "measurement", "name": "Measurement", "description": "How measured.", "rationale": "Method sets accuracy.", "layers": [ { "id": "instrument", "name": "Instrument", "description": "Tool.", "findings": [ { "id": "instrument-finding", "name": "Instrument", "description": "Instrument used.", "questions": [ { "text": "Which instrument measured it?", "kind": "provenance" }, { "text": "Is it calibrated?", "kind": "provenance" } ] } ] }, { "id": "uncertainty", "name": "Uncertainty", "description": "Error.", "findings": [ { "id": "uncertainty-finding", "name": "Uncertainty", "description": "Measurement uncertainty.", "questions": [ { "text": "What is the uncertainty?", "kind": "measurement" }, { "text": "At what temperature was it measured?", "kind": "measurement" } ] } ] } ] }, { "id": "units", "name": "Units", "description": "Units and conversion.", "rationale": "Unit errors cause failures.", "layers": [ { "id": "unit", "name": "Unit", "description": "Stated unit.", "findings": [ { "id": "unit-finding", "name": "Unit", "description": "Unit used.", "questions": [ { "text": "In which unit is it given?", "kind": "definition" }, { "text": "Could it be misread?", "kind": "boundary" } ] } ] }, { "id": "conversion", "name": "Conversion", "description": "Exact factors.", "findings": [ { "id": "conversion-finding", "name": "Conversion", "description": "Conversion factors.", "questions": [ { "text": "What is it in metres?", "kind": "measurement" }, { "text": "What rounding was used?", "kind": "measurement" } ] } ] } ] }, { "id": "specification", "name": "Specification", "description": "Tolerances.", "rationale": "Specifications need tolerances.", "layers": [ { "id": "tolerance", "name": "Tolerance", "description": "Allowed variation.", "findings": [ { "id": "tolerance-finding", "name": "Tolerance", "description": "Tolerance band.", "questions": [ { "text": "What tolerance applies?", "kind": "measurement" }, { "text": "Is the part within it?", "kind": "boundary" } ] } ] }, { "id": "fit", "name": "Fit", "description": "Matching parts.", "findings": [ { "id": "fit-finding", "name": "Fit", "description": "Fit between parts.", "questions": [ { "text": "Will the parts fit together?", "kind": "boundary" }, { "text": "Which fit class is specified?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should specialised lengths be separate entries?", "How should tolerances be recorded?", "The registry entry has merged aliases such as ammunition calibre; how should they be linked?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }