{ "model": { "rank": 9947, "code": "thing-q371520", "model_id": "vr.tr.polydactyly", "name": "polydactyly", "purpose": "Let an agent explain polydactyly and its kinds in general terms, relay genetics, assessment and treatment principles from clinical sources, describe it in animals, and route personal questions to clinicians and genetic counsellors.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.STA", "industry": "", "version": "", "url": "/models/thing/q371520/", "tier": 2, "score": 46, "payload": { "layer": "wikidata", "aliases": [ "Thai symphalangism syndrome", "thumb duplication", "polydactyly of a biphalangeal thumb", "polysyndactyly", "synpolydactyly", "ectrodactyly-polydactyly syndrome", "crossed polysyndactyly", "polysyndactyly, unilateral", "polysyndactyly, bilateral", "postaxial polydactyly", "hexadactyly", "Wassel classification", "central polydactyly of fingers", "preaxial polydactyly of toes", "central polydactyly of toes", "Apert-like polydactyly syndrome", "preaxial polydactyly of fingers" ], "aliasCount": 17, "merged": 17, "knownIn": 46, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q371520", "url": "https://www.wikidata.org/wiki/Q371520", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T23:20:26Z", "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": 3, "engine": "claude" }, "metaModel": { "id": "THING-Q371520", "registryId": "vr.tr.polydactyly", "name": "polydactyly", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.STA" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q371520/", "model": { "registry_id": "vr.tr.polydactyly", "name": "polydactyly", "purpose": "Let an agent explain polydactyly and its kinds in general terms, relay genetics, assessment and treatment principles from clinical sources, describe it in animals, and route personal questions to clinicians and genetic counsellors.", "definition": "A congenital condition in which a person or animal has extra fingers or toes, ranging from a small skin tag to a fully formed digit, occurring on the thumb or big toe side, the little finger side or centrally, alone or as part of syndromes with fused digits or other anomalies; polydactyly is among the most common limb differences, has genetic causes in many cases, and is often treated surgically in early childhood.", "what_it_is_for": "Not applicable; a congenital condition.", "affordances": [ "explain kinds and causes", "relay assessment and treatment principles", "describe polydactyly in animals", "route personal questions to clinicians" ], "distinguishing_features": [ "Extra digits", "Isolated or syndromic", "Genetic basis in many cases", "Surgical management" ], "appearance": "An extra digit or partial digit on a hand or foot, visible at birth.", "visual_identification": [ "Extra fingers or toes", "Preaxial, postaxial and central forms", "Syndactyly is fusion; hyperphalangy is extra bones within a digit" ], "physical_properties": [ { "quantity": "incidence", "typical_range": "about 1 in 500-1000", "unit": "births", "note": "varies by population and type" } ], "families_and_kinds": [ "postaxial polydactyly on the little finger side", "preaxial polydactyly including thumb duplication", "central polydactyly", "polysyndactyly and synpolydactyly with fusion", "syndromic forms such as ectrodactyly-polydactyly syndromes and symphalangism syndromes", "polydactyly in animals such as cats and dogs" ], "related_models": [ { "relation": "is a kind of", "target": "congenital anomaly of digit", "why": "in registry terms" }, { "relation": "is a kind of", "target": "limb difference", "why": "in general terms" }, { "relation": "is contrasted with", "target": "syndactyly", "why": "fusion of digits" }, { "relation": "is treated by", "target": "hand surgery", "why": "the specialty" } ], "identifiers": [ { "scheme": "ICD-10", "value_or_pattern": "Q69", "note": "polydactyly" }, { "scheme": "OMIM", "value_or_pattern": "various", "note": "by genetic type" } ], "standards_and_regulation": [ "Clinical guidelines on congenital hand differences", "Genetic counselling standards", "Disability rights frameworks" ], "failure_modes_and_hazards": [ "Missed syndromic diagnosis", "Stigmatising language", "Agents giving personal medical advice" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What polydactyly is.", "rationale": "General information.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition and kinds.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "What is polydactyly, and what kinds exist?", "kind": "definition" }, { "text": "Is the user asking about their own or a child condition, which needs a clinician?", "kind": "boundary" } ] } ] }, { "id": "causes", "name": "Causes", "description": "Causes and genetics.", "findings": [ { "id": "causes-finding", "name": "Causes", "description": "Causes.", "questions": [ { "text": "What genetic and developmental causes underlie polydactyly, in general terms?", "kind": "definition" }, { "text": "Which entry fits the specific syndrome?", "kind": "action" } ] } ] } ] }, { "id": "clinical", "name": "Clinical", "description": "Assessment and treatment.", "rationale": "Clinical.", "layers": [ { "id": "assessment", "name": "Assessment", "description": "Assessment.", "findings": [ { "id": "assessment-finding", "name": "Assessment", "description": "Assessment.", "questions": [ { "text": "How is polydactyly assessed, including checks for associated anomalies?", "kind": "provenance" }, { "text": "Is the presentation free of personal medical advice?", "kind": "boundary" } ] } ] }, { "id": "treatment", "name": "Treatment", "description": "Treatment principles.", "findings": [ { "id": "treatment-finding", "name": "Treatment", "description": "Treatment.", "questions": [ { "text": "What treatment principles apply, from observation to surgery, in general terms?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] } ] }, { "id": "living", "name": "Living", "description": "Support and language.", "rationale": "Support.", "layers": [ { "id": "support", "name": "Support", "description": "Support.", "findings": [ { "id": "support-finding", "name": "Support", "description": "Support.", "questions": [ { "text": "What support and organisations exist for families?", "kind": "provenance" }, { "text": "Which entry fits limb difference support?", "kind": "action" } ] } ] }, { "id": "language", "name": "Language", "description": "Respectful language.", "findings": [ { "id": "language-finding", "name": "Language", "description": "Language.", "questions": [ { "text": "What language do organisations and clinicians recommend?", "kind": "provenance" }, { "text": "Is the language used respectful?", "kind": "boundary" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Animals and history.", "rationale": "Context.", "layers": [ { "id": "animals", "name": "Animals", "description": "Polydactyly in animals.", "findings": [ { "id": "animals-finding", "name": "Animals", "description": "Animals.", "questions": [ { "text": "How does polydactyly occur in cats, dogs and other animals, and how is it inherited?", "kind": "provenance" }, { "text": "Which entry fits polydactyl cat?", "kind": "action" } ] } ] }, { "id": "history", "name": "History", "description": "History and culture.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How has polydactyly been recorded and regarded historically and culturally?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should each type be a separate entry?", "How should genetic databases be linked?", "The registry entry has merged aliases naming syndromes and subtypes; should they be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a polydactyly, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain polydactyly and its kinds in general terms, relay genetics, assessment and treatment principles from clinical sources, describe it in animals, and route personal questions to clinicians and genetic counsellors.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: Thai symphalangism syndrome, thumb duplication, polydactyly of a biphalangeal thumb, polysyndactyly, synpolydactyly, ectrodactyly-polydactyly syndrome, crossed polysyndactyly, polysyndactyly, unilateral, polysyndactyly, bilateral, postaxial polydactyly, hexadactyly, Wassel classification.", "17 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 46 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a polydactyly, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "Thai symphalangism syndrome", "thumb duplication", "polydactyly of a biphalangeal thumb", "polysyndactyly", "synpolydactyly", "ectrodactyly-polydactyly syndrome", "crossed polysyndactyly", "polysyndactyly, unilateral", "polysyndactyly, bilateral", "postaxial polydactyly", "hexadactyly", "Wassel classification" ] } ], "standing": "Described in 46 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 17 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one polydactyly from another, and a polydactyly from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a polydactyly, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a polydactyly, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a polydactyly is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a polydactyly, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a polydactyly, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a polydactyly is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a polydactyly sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a polydactyly, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a polydactyly, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a polydactyly is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a polydactyly from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a polydactyly, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a polydactyly, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a polydactyly is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a polydactyly passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a polydactyly between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a polydactyly, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a polydactyly, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a polydactyly is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a polydactyly, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a polydactyly is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a polydactyly, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a polydactyly, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a polydactyly is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What polydactyly is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of polydactyly are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is polydactyly operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of polydactyly and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of polydactyly?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as polydactyly?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a polydactyly came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a polydactyly and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a polydactyly, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a polydactyly, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a polydactyly is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a polydactyly is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a polydactyly, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a polydactyly, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a polydactyly is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }