{ "model": { "rank": 5930, "code": "thing-q187440", "model_id": "vr.tr.urticaria", "name": "urticaria", "purpose": "Let an agent explain urticaria and its forms in general terms from clinical guidelines, describe causes, diagnosis and treatment approaches, distinguish urticaria from other rashes and from anaphylaxis, and route personal questions to clinicians and emergencies to urgent care.", "family": "Thing Registry", "category": "Information and virtual systems", "status": "research-draft", "kind": "thing", "plane": "INF", "domain": "INF.KNW", "industry": "", "version": "", "url": "/models/thing/q187440/", "tier": 2, "score": 64, "payload": { "layer": "wikidata", "aliases": [ "angioedema", "aquagenic urticaria", "idiopathic urticaria", "cold urticaria", "chronic urticaria", "contact urticaria", "adrenergic urticaria", "drug-induced urticaria", "galvanic urticaria", "autoimmune urticaria", "white dermographism", "physical urticaria", "solar urticaria", "Drug-induced angioedema", "non-histaminic angioedema", "acquired angioedema", "hereditary angioedema", "Gleich's syndrome", "chronic inducible urticaria", "vibratory urticaria", "Heat urticaria", "pressure urticaria", "C1 inhibitor deficiency", "hereditary angioedema type III", "hereditary angioedema Types I and II", "Localized heat contact urticaria" ], "aliasCount": 26, "merged": 26, "knownIn": 64, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q187440", "url": "https://www.wikidata.org/wiki/Q187440", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T02:04:24Z", "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-Q187440", "registryId": "vr.tr.urticaria", "name": "urticaria", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "INF.KNW" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q187440/", "model": { "registry_id": "vr.tr.urticaria", "name": "urticaria", "purpose": "Let an agent explain urticaria and its forms in general terms from clinical guidelines, describe causes, diagnosis and treatment approaches, distinguish urticaria from other rashes and from anaphylaxis, and route personal questions to clinicians and emergencies to urgent care.", "definition": "A skin reaction of itchy raised wheals, commonly called hives, caused by release of histamine from mast cells, occurring as acute urticaria lasting under six weeks, often from infection, food or drugs, or chronic urticaria lasting longer, including spontaneous or idiopathic forms and inducible forms such as cold, contact and aquagenic urticaria, and often accompanied by angioedema, deeper swelling of the skin or mucosa; urticaria is treated with antihistamines and, in severe cases, biologics, and can signal anaphylaxis.", "what_it_is_for": "Not applicable; a skin condition.", "affordances": [ "explain forms and causes", "relay diagnosis and treatment approaches", "distinguish from other rashes", "route personal questions" ], "distinguishing_features": [ "Transient wheals", "Histamine mediated", "Acute and chronic forms", "Angioedema association" ], "appearance": "Raised red or skin-coloured itchy wheals that come and go within hours.", "visual_identification": [ "Hives with transient wheals", "Acute, chronic spontaneous, inducible forms, angioedema", "Eczema and contact dermatitis persist longer; anaphylaxis involves breathing and circulation" ], "physical_properties": [ { "quantity": "lifetime prevalence", "typical_range": "about 20", "unit": "percent", "note": "estimates" }, { "quantity": "chronic urticaria prevalence", "typical_range": "about 1", "unit": "percent", "note": "" } ], "families_and_kinds": [ "acute urticaria", "chronic spontaneous or idiopathic urticaria", "inducible urticaria: cold, heat, pressure, solar, aquagenic, cholinergic", "contact urticaria", "angioedema with or without wheals", "urticarial vasculitis as a distinct condition" ], "related_models": [ { "relation": "is a kind of", "target": "skin disease", "why": "in registry terms" }, { "relation": "is a kind of", "target": "skin and integumentary tissue symptom", "why": "in registry terms" }, { "relation": "is mediated by", "target": "histamine", "why": "from mast cells" }, { "relation": "is treated with", "target": "antihistamine", "why": "as first line" } ], "identifiers": [ { "scheme": "ICD-11", "value_or_pattern": "EB00", "note": "urticaria" }, { "scheme": "MeSH", "value_or_pattern": "D014581", "note": "" } ], "standards_and_regulation": [ "International urticaria guidelines from EAACI, GA2LEN and WAO", "Drug regulation for antihistamines and biologics" ], "failure_modes_and_hazards": [ "Anaphylaxis missed", "Agents giving personal medical advice", "Unnecessary allergy testing", "Confusing with other rashes" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "help", "name": "Help", "description": "Getting help first.", "rationale": "Safety.", "layers": [ { "id": "emergency", "name": "Emergency", "description": "Emergency signs.", "findings": [ { "id": "emergency-finding", "name": "Emergency", "description": "Emergency.", "questions": [ { "text": "What signs such as swelling of the throat or breathing difficulty indicate anaphylaxis and need emergency care?", "kind": "action" }, { "text": "Is the user describing such signs, which need emergency services now?", "kind": "boundary" } ] } ] }, { "id": "care", "name": "Care", "description": "When to see a clinician.", "findings": [ { "id": "care-finding", "name": "Care", "description": "Care.", "questions": [ { "text": "When should hives be assessed by a clinician, per guidelines?", "kind": "provenance" }, { "text": "Is the user asking about their own rash, which needs a clinician?", "kind": "boundary" } ] } ] } ] }, { "id": "understand", "name": "Understand", "description": "The condition.", "rationale": "Clinical.", "layers": [ { "id": "forms", "name": "Forms", "description": "Forms and causes.", "findings": [ { "id": "forms-finding", "name": "Forms", "description": "Forms.", "questions": [ { "text": "What forms of urticaria exist, and what causes them?", "kind": "definition" }, { "text": "Is the rash urticaria, eczema, contact dermatitis or another condition?", "kind": "boundary" } ] } ] }, { "id": "mechanism", "name": "Mechanism", "description": "Mechanism.", "findings": [ { "id": "mechanism-finding", "name": "Mechanism", "description": "Mechanism.", "questions": [ { "text": "How do mast cells and histamine produce wheals and angioedema?", "kind": "provenance" }, { "text": "Which entry fits the specific form?", "kind": "action" } ] } ] } ] }, { "id": "treat", "name": "Treat", "description": "Diagnosis and treatment.", "rationale": "Clinical.", "layers": [ { "id": "diagnosis", "name": "Diagnosis", "description": "Diagnosis.", "findings": [ { "id": "diagnosis-finding", "name": "Diagnosis", "description": "Diagnosis.", "questions": [ { "text": "How is urticaria diagnosed, and what tests are and are not useful, per guidelines?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "treatment", "name": "Treatment", "description": "Treatment.", "findings": [ { "id": "treatment-finding", "name": "Treatment", "description": "Treatment.", "questions": [ { "text": "What treatments do guidelines recommend, from antihistamines to biologics, in general terms?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Living and research.", "rationale": "Context.", "layers": [ { "id": "living", "name": "Living", "description": "Living with chronic urticaria.", "findings": [ { "id": "living-finding", "name": "Living", "description": "Living.", "questions": [ { "text": "How do people manage chronic urticaria and its impact on quality of life?", "kind": "provenance" }, { "text": "Which entry fits chronic urticaria support?", "kind": "action" } ] } ] }, { "id": "research", "name": "Research", "description": "Research.", "findings": [ { "id": "research-finding", "name": "Research", "description": "Research.", "questions": [ { "text": "What research exists on autoimmune mechanisms and new treatments, with findings attributed?", "kind": "provenance" }, { "text": "Which entry fits allergy research?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should chronic spontaneous urticaria and angioedema be separate entries?", "How should guidelines be linked?", "The registry entry has merged aliases naming forms; 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": "discipline or field of knowledge", "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 urticaria, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain urticaria and its forms in general terms from clinical guidelines, describe causes, diagnosis and treatment approaches, distinguish urticaria from other rashes and from anaphylaxis, and route personal questions to clinicians and emergencies to urgent care.", "characteristics": { "substance": "information", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "read and interpreted" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: angioedema, aquagenic urticaria, idiopathic urticaria, cold urticaria, chronic urticaria, contact urticaria, adrenergic urticaria, drug-induced urticaria, galvanic urticaria, autoimmune urticaria, white dermographism, physical urticaria.", "26 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 64 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 urticaria, and on what evidence are they told apart?" ], "whatItIsMadeOf": "content that has to be carried by something else", "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": [ "read it and act on what it says" ], "howItIsRecognised": [], "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": [ "angioedema", "aquagenic urticaria", "idiopathic urticaria", "cold urticaria", "chronic urticaria", "contact urticaria", "adrenergic urticaria", "drug-induced urticaria", "galvanic urticaria", "autoimmune urticaria", "white dermographism", "physical urticaria" ] } ], "standing": "Described in 64 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 26 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 urticaria from another, and a urticaria 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 urticaria, 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 urticaria, 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 urticaria 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 urticaria, 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 urticaria, 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 urticaria 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 urticaria 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 urticaria, 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 urticaria, 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 urticaria 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 urticaria from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a urticaria, 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 urticaria, 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 urticaria 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 urticaria 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 urticaria between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a urticaria, 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 urticaria, 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 urticaria 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 urticaria, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a urticaria 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 urticaria, 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 urticaria, 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 urticaria is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "content-and-access", "name": "Content, encoding and access", "description": "What a urticaria says, how it is encoded and who may read it.", "rationale": "An informational thing carries content that can be copied, versioned and withheld, none of which its physical carrier explains.", "layers": [ { "id": "content-and-encoding", "name": "Content and encoding", "description": "The content itself, its format and its language.", "findings": [ { "id": "content-and-format", "name": "Content, format and language", "description": "What a urticaria contains and in what form it is held.", "questions": [ { "id": "content-and-format-q01", "text": "What identifies and describes the content of a urticaria, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "content-and-format-q02", "text": "Who or what asserted this about the content of a urticaria, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "content-and-format-q03", "text": "What may an agent decide or do once the content of a urticaria is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "access-and-rights", "name": "Access, rights and retention", "description": "Who may read, copy or change it, and for how long it is kept.", "findings": [ { "id": "access-rules", "name": "Access rules and retention", "description": "The permissions attached to a urticaria and the period it survives.", "questions": [ { "id": "access-rules-q01", "text": "What identifies and describes access to a urticaria, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "access-rules-q02", "text": "Who or what asserted this about access to a urticaria, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "access-rules-q03", "text": "What may an agent decide or do once access to a urticaria is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "subject-and-method", "name": "Subject matter and method", "description": "What urticaria studies and how it establishes anything.", "rationale": "A field is identified by its questions and its methods, and those are what distinguish it from the fields next to it.", "layers": [ { "id": "subject", "name": "Subject matter", "description": "The questions it takes as its own.", "findings": [ { "id": "subject-record", "name": "Questions and objects of study", "description": "What it is about, stated so a neighbouring field can be told apart.", "questions": [ { "id": "subject-record-q01", "text": "What questions and objects does urticaria take as its own?", "kind": "definition" }, { "id": "subject-record-q02", "text": "Which questions does it share with a neighbouring field, and who claims them?", "kind": "boundary" } ] } ] }, { "id": "method", "name": "Method and evidence", "description": "How claims are established and what counts as evidence.", "findings": [ { "id": "method-record", "name": "Methods and standards of evidence", "description": "The methods used and what they are taken to establish.", "questions": [ { "id": "method-record-q01", "text": "By what methods does urticaria establish claims, and what counts as sufficient evidence?", "kind": "provenance" }, { "id": "method-record-q02", "text": "What kind of claim can this field not settle, and where should an agent look instead?", "kind": "action" } ] } ] } ] }, { "id": "institutions-and-classification", "name": "Institutions and classification", "description": "Where urticaria is practised and how catalogues place it.", "rationale": "The institutional footprint is the evidence that a field exists as a field rather than as a topic.", "layers": [ { "id": "institutions", "name": "Institutional markers", "description": "Societies, journals, degrees and departments.", "findings": [ { "id": "institution-record", "name": "Bodies and venues", "description": "Where the field organises itself.", "questions": [ { "id": "institution-record-q01", "text": "Which societies, journals or degrees mark urticaria as an established field?", "kind": "provenance" }, { "id": "institution-record-q02", "text": "What would show that it is emerging or dissolving rather than established?", "kind": "boundary" } ] } ] }, { "id": "classification", "name": "Classification schemes", "description": "Where library and research classifications put it.", "findings": [ { "id": "classification-record", "name": "Codes and their disagreements", "description": "The classification codes that place it, and where they differ.", "questions": [ { "id": "classification-record-q01", "text": "Which classification schemes place urticaria, under what codes?", "kind": "definition" }, { "id": "classification-record-q02", "text": "Where do those schemes disagree about its scope?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a urticaria 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 urticaria and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a urticaria, 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 urticaria, 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 urticaria 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 urticaria is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a urticaria, 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 urticaria, 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 urticaria is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 12, "findings": 14, "questions": 38 } } } }