{ "model": { "rank": 1554, "code": "thing-q86", "model_id": "vr.tr.headache", "name": "headache", "purpose": "Let an agent explain headache types and classification in general terms, relay guidance on when to seek care from medical bodies, describe common management approaches as documented, and route personal questions to clinicians.", "family": "Thing Registry", "category": "Information and virtual systems", "status": "research-draft", "kind": "thing", "plane": "INF", "domain": "INF.KNW", "industry": "", "version": "", "url": "/models/thing/q86/", "tier": 2, "score": 139, "payload": { "layer": "wikidata", "aliases": [ "bifrontal headache", "severe headache", "frontal headache", "Nummular headache", "New daily persistent headache", "primary stabbing headache", "tension headache", "sexual headache", "post-dural-puncture headache", "chronic headache", "cold-stimulus headache", "Lupus headache", "cough headache", "post-traumatic headache", "vascular headache", "thunderclap headache", "External compression headache", "secondary headache disorder", "rare headache disorder", "exertional headache", "headache attributed to a substance or its withdrawal", "hypnic headache", "Ictal headache", "orthostatic headache", "chronic paroxysmal hemicrania" ], "aliasCount": 25, "merged": 25, "knownIn": 139, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q86", "url": "https://www.wikidata.org/wiki/Q86", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T23:51:37Z", "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": 2, "engine": "claude" }, "metaModel": { "id": "THING-Q86", "registryId": "vr.tr.headache", "name": "headache", "version": "0.2.0-wave.2", "entryKind": "thing", "family": "Thing Registry", "domain": [ "INF.KNW" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q86/", "model": { "registry_id": "vr.tr.headache", "name": "headache", "purpose": "Let an agent explain headache types and classification in general terms, relay guidance on when to seek care from medical bodies, describe common management approaches as documented, and route personal questions to clinicians.", "definition": "Pain in the head or upper neck, one of the most common symptoms, classified into primary headaches such as migraine, tension-type and cluster headache, and secondary headaches caused by other conditions, with many described patterns such as frontal, nummular, new daily persistent and primary stabbing headache; headaches are classified by the International Headache Society and this entry gives general information, not personal medical advice.", "what_it_is_for": "Pain in the head.", "affordances": [ "explain types and classification", "relay when to seek care", "describe documented management", "route personal questions" ], "distinguishing_features": [ "Common symptom", "Classified types", "Warning signs", "Manageable" ], "appearance": "Not visible; a symptom.", "visual_identification": [ "Pain in head or neck", "Primary or secondary", "Facial pain and neck pain are related but distinct" ], "physical_properties": [], "families_and_kinds": [ "migraine", "tension-type headache", "cluster and other trigeminal autonomic headaches", "other primary headaches such as stabbing and nummular", "secondary headaches" ], "related_models": [ { "relation": "is a kind of", "target": "pain", "why": "category" }, { "relation": "is a kind of", "target": "clinical sign", "why": "category" }, { "relation": "is related to", "target": "migraine", "why": "a primary headache" }, { "relation": "is related to", "target": "stress", "why": "a common trigger" } ], "identifiers": [], "standards_and_regulation": [ "International Classification of Headache Disorders", "Clinical guidelines from neurology bodies", "Medication regulation" ], "failure_modes_and_hazards": [ "Missing warning signs of serious causes", "Medication overuse headache", "Agents giving personal medical advice" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "Types of headache.", "rationale": "General information.", "layers": [ { "id": "types", "name": "Types", "description": "Classification.", "findings": [ { "id": "types-finding", "name": "Types", "description": "Types.", "questions": [ { "text": "How are headaches classified into primary and secondary types, and what characterises migraine, tension-type and cluster headache?", "kind": "provenance" }, { "text": "Which entry fits a specific type?", "kind": "action" } ] } ] }, { "id": "causes", "name": "Causes", "description": "Causes and triggers.", "findings": [ { "id": "causes-finding", "name": "Causes", "description": "Causes.", "questions": [ { "text": "What causes and triggers headaches, according to medical sources?", "kind": "provenance" }, { "text": "Is the user asking about their own headache, which needs a clinician?", "kind": "boundary" } ] } ] } ] }, { "id": "care", "name": "Care", "description": "Seeking care.", "rationale": "Safety.", "layers": [ { "id": "warning", "name": "Warning", "description": "Warning signs.", "findings": [ { "id": "warning-finding", "name": "Warning", "description": "Warning.", "questions": [ { "text": "Which headache features are warning signs requiring urgent care, according to medical guidance?", "kind": "provenance" }, { "text": "Is an emergency present now, requiring emergency services?", "kind": "boundary" } ] } ] }, { "id": "manage", "name": "Manage", "description": "Management.", "findings": [ { "id": "manage-finding", "name": "Manage", "description": "Management.", "questions": [ { "text": "What management approaches are documented for common headache types, including lifestyle and medication?", "kind": "provenance" }, { "text": "What is medication overuse headache?", "kind": "provenance" } ] } ] } ] }, { "id": "live", "name": "Live", "description": "Living with headaches.", "rationale": "Support.", "layers": [ { "id": "diary", "name": "Diary", "description": "Tracking headaches.", "findings": [ { "id": "diary-finding", "name": "Diary", "description": "Tracking.", "questions": [ { "text": "How can a headache diary help identify patterns and support clinical care?", "kind": "action" }, { "text": "Which tools exist?", "kind": "provenance" } ] } ] }, { "id": "work", "name": "Work", "description": "Work and daily life.", "findings": [ { "id": "work-finding", "name": "Work", "description": "Daily life.", "questions": [ { "text": "How do chronic headaches affect work and life, and what support and accommodations exist?", "kind": "provenance" }, { "text": "Which entry fits chronic pain?", "kind": "action" } ] } ] } ] }, { "id": "learn", "name": "Learn", "description": "Research and teaching.", "rationale": "Education.", "layers": [ { "id": "research", "name": "Research", "description": "Research.", "findings": [ { "id": "research-finding", "name": "Research", "description": "Research.", "questions": [ { "text": "What is known about headache mechanisms and new treatments, according to research?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "teach", "name": "Teach", "description": "Teaching.", "findings": [ { "id": "teach-finding", "name": "Teach", "description": "Teaching.", "questions": [ { "text": "How can headache classification be taught?", "kind": "action" }, { "text": "Which misconceptions arise?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should each headache type be a separate entry?", "How should guidelines be linked?", "How should warning signs be presented?" ], "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 headache, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain headache types and classification in general terms, relay guidance on when to seek care from medical bodies, describe common management approaches as documented, and route personal questions to clinicians.", "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: bifrontal headache, severe headache, frontal headache, Nummular headache, New daily persistent headache, primary stabbing headache, tension headache, sexual headache, post-dural-puncture headache, chronic headache, cold-stimulus headache, Lupus headache.", "25 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 139 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 headache, 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": [ "bifrontal headache", "severe headache", "frontal headache", "Nummular headache", "New daily persistent headache", "primary stabbing headache", "tension headache", "sexual headache", "post-dural-puncture headache", "chronic headache", "cold-stimulus headache", "Lupus headache" ] } ], "standing": "Described in 139 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 25 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 headache from another, and a headache 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 headache, 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 headache, 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 headache 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 headache, 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 headache, 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 headache 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 headache 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 headache, 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 headache, 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 headache 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 headache from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a headache, 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 headache, 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 headache 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 headache 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 headache between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a headache, 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 headache, 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 headache 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 headache, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a headache 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 headache, 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 headache, 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 headache 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 headache 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 headache contains and in what form it is held.", "questions": [ { "id": "content-and-format-q01", "text": "What identifies and describes the content of a headache, 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 headache, 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 headache 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 headache and the period it survives.", "questions": [ { "id": "access-rules-q01", "text": "What identifies and describes access to a headache, 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 headache, 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 headache 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 headache 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 headache 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 headache 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 headache 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 headache 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 headache, 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 headache 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 headache and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a headache, 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 headache, 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 headache 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 headache is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a headache, 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 headache, 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 headache 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 } } } }