{ "model": { "rank": 4242, "code": "thing-q83864", "model_id": "vr.tr.menstrual-cycle", "name": "menstrual cycle", "purpose": "Let an agent explain the menstrual cycle and its phases in general terms from health sources, relay normal variation, tracking and common problems, and route personal health questions to clinicians.", "family": "Thing Registry", "category": "Activities and processes", "status": "research-draft", "kind": "thing", "plane": "ACT", "domain": "ACT.PRC", "industry": "", "version": "", "url": "/models/thing/q83864/", "tier": 2, "score": 77, "payload": { "layer": "wikidata", "aliases": [ "anovulatory cycle" ], "aliasCount": 1, "merged": 1, "knownIn": 77, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q83864", "url": "https://www.wikidata.org/wiki/Q83864", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T01:57:21Z", "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-Q83864", "registryId": "vr.tr.menstrual-cycle", "name": "menstrual cycle", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "ACT.PRC" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q83864/", "model": { "registry_id": "vr.tr.menstrual-cycle", "name": "menstrual cycle", "purpose": "Let an agent explain the menstrual cycle and its phases in general terms from health sources, relay normal variation, tracking and common problems, and route personal health questions to clinicians.", "definition": "The recurring series of hormonal and physical changes in the female reproductive system that prepares the body for possible pregnancy, lasting about 28 days on average with a normal range of about 21 to 35, comprising the follicular phase, ovulation and the luteal phase, and ending in menstruation if no pregnancy occurs, with anovulatory cycles in which no egg is released; the cycle is regulated by hormones from the hypothalamus, pituitary and ovaries and is affected by health, age and contraception.", "what_it_is_for": "Not applicable; a physiological process.", "affordances": [ "explain phases and hormones", "relay normal variation", "describe tracking and common problems", "route personal questions" ], "distinguishing_features": [ "Hormonal regulation", "Ovulation", "Cyclic endometrial change", "Variation across life" ], "appearance": "Not a visible object; a cycle of physiological changes.", "visual_identification": [ "Recurring reproductive cycle", "Follicular phase, ovulation, luteal phase, menstruation, anovulatory cycles", "The estrous cycle is the equivalent in many other mammals; pregnancy interrupts the cycle" ], "physical_properties": [ { "quantity": "average length", "typical_range": "about 28", "unit": "days", "note": "normal range about 21-35" }, { "quantity": "menstruation length", "typical_range": "about 3-7", "unit": "days", "note": "" } ], "families_and_kinds": [ "ovulatory cycles", "anovulatory cycles", "cycles in adolescence and perimenopause", "cycles under hormonal contraception", "irregular cycles and their causes" ], "related_models": [ { "relation": "is a kind of", "target": "developmental process involved in reproduction", "why": "in registry terms" }, { "relation": "is regulated by", "target": "hypothalamic-pituitary-gonadal axis", "why": "hormones" }, { "relation": "includes", "target": "ovulation", "why": "as its central event" }, { "relation": "ends in", "target": "menstruation", "why": "if no pregnancy occurs" } ], "identifiers": [ { "scheme": "MeSH", "value_or_pattern": "D008597", "note": "menstrual cycle" } ], "standards_and_regulation": [ "Gynaecology guidelines on menstrual disorders", "Regulation of cycle tracking apps and fertility devices", "Menstrual health policies and product access rules" ], "failure_modes_and_hazards": [ "Agents giving personal medical or contraceptive advice", "Misuse of tracking for contraception without guidance", "Stigma and misinformation" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "The cycle.", "rationale": "Science.", "layers": [ { "id": "phases", "name": "Phases", "description": "Phases and hormones.", "findings": [ { "id": "phases-finding", "name": "Phases", "description": "Phases.", "questions": [ { "text": "What are the phases of the menstrual cycle, and how do hormones regulate them?", "kind": "definition" }, { "text": "Is the question about the cycle in general or a personal health concern?", "kind": "boundary" } ] } ] }, { "id": "variation", "name": "Variation", "description": "Normal variation.", "findings": [ { "id": "variation-finding", "name": "Variation", "description": "Variation.", "questions": [ { "text": "What is the normal range of cycle length and bleeding, and what are anovulatory cycles?", "kind": "provenance" }, { "text": "Which entry fits ovulation?", "kind": "action" } ] } ] } ] }, { "id": "health", "name": "Health", "description": "Health and problems.", "rationale": "Clinical.", "layers": [ { "id": "problems", "name": "Problems", "description": "Common problems.", "findings": [ { "id": "problems-finding", "name": "Problems", "description": "Problems.", "questions": [ { "text": "What common menstrual problems exist, such as heavy bleeding, pain and irregularity, in general terms?", "kind": "provenance" }, { "text": "Is the user describing personal symptoms, which need a clinician?", "kind": "boundary" } ] } ] }, { "id": "life", "name": "Life", "description": "Across the lifespan.", "findings": [ { "id": "life-finding", "name": "Life", "description": "Life.", "questions": [ { "text": "How does the cycle change from menarche through perimenopause to menopause?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] } ] }, { "id": "track", "name": "Track", "description": "Tracking and fertility.", "rationale": "Practice.", "layers": [ { "id": "tracking", "name": "Tracking", "description": "Tracking.", "findings": [ { "id": "tracking-finding", "name": "Tracking", "description": "Tracking.", "questions": [ { "text": "How is the cycle tracked, and how accurate are apps and fertility awareness methods, as studies find?", "kind": "provenance" }, { "text": "Is the user relying on tracking for contraception, which needs professional guidance?", "kind": "boundary" } ] } ] }, { "id": "contraception", "name": "Contraception", "description": "Contraception effects.", "findings": [ { "id": "contraception-finding", "name": "Contraception", "description": "Contraception.", "questions": [ { "text": "How do hormonal contraceptives affect the cycle, in general terms?", "kind": "provenance" }, { "text": "Which entry fits hormonal contraception?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Society and research.", "rationale": "Attribution.", "layers": [ { "id": "society", "name": "Society", "description": "Menstrual health and society.", "findings": [ { "id": "society-finding", "name": "Society", "description": "Society.", "questions": [ { "text": "What do reports say about menstrual health, stigma and product access, with attribution?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] }, { "id": "research", "name": "Research", "description": "Research.", "findings": [ { "id": "research-finding", "name": "Research", "description": "Research.", "questions": [ { "text": "What research exists on cycle effects on health, performance and medicine, with findings attributed?", "kind": "provenance" }, { "text": "Which entry fits menstrual health research?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should ovulation and menstruation be separate primary entries?", "How should health guidelines be linked?", "How should cycle tracking technology be linked?" ], "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 menstrual cycle, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain the menstrual cycle and its phases in general terms from health sources, relay normal variation, tracking and common problems, and route personal health questions to clinicians.", "characteristics": { "substance": "activity", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: anovulatory cycle.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 77 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 menstrual cycle, and on what evidence are they told apart?" ], "whatItIsMadeOf": "something that happens over time", "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": [ "anovulatory cycle" ] } ], "standing": "Described in 77 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 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 menstrual cycle from another, and a menstrual cycle 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 menstrual cycle, 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 menstrual cycle, 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 menstrual cycle 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 menstrual cycle, 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 menstrual cycle, 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 menstrual cycle 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 menstrual cycle 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 menstrual cycle, 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 menstrual cycle, 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 menstrual cycle 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 menstrual cycle from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a menstrual cycle, 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 menstrual cycle, 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 menstrual cycle 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 menstrual cycle 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 menstrual cycle between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a menstrual cycle, 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 menstrual cycle, 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 menstrual cycle 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 menstrual cycle, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a menstrual cycle 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 menstrual cycle, 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 menstrual cycle, 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 menstrual cycle is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "process-and-outcome", "name": "Process, inputs and outcome", "description": "How a menstrual cycle proceeds, what it needs and what it leaves behind.", "rationale": "An activity is known by its steps and its results, and both have to be recordable while it is still running.", "layers": [ { "id": "steps-and-sequence", "name": "Steps and sequence", "description": "The steps of a menstrual cycle, their order and what may run in parallel.", "findings": [ { "id": "steps-and-preconditions", "name": "Steps, preconditions and completion", "description": "What has to be true before each step of a menstrual cycle and what marks it done.", "questions": [ { "id": "steps-and-preconditions-q01", "text": "What identifies and describes a step of a menstrual cycle, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "steps-and-preconditions-q02", "text": "Who or what asserted this about a step of a menstrual cycle, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "steps-and-preconditions-q03", "text": "What may an agent decide or do once a step of a menstrual cycle is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "inputs-and-results", "name": "Inputs, resources and results", "description": "What a menstrual cycle consumes and what it produces.", "findings": [ { "id": "inputs-and-outputs", "name": "Inputs, outputs and side effects", "description": "The resources a menstrual cycle takes and the results it leaves, wanted or not.", "questions": [ { "id": "inputs-and-outputs-q01", "text": "What identifies and describes the inputs and results of a menstrual cycle, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "inputs-and-outputs-q02", "text": "Who or what asserted this about the inputs and results of a menstrual cycle, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "inputs-and-outputs-q03", "text": "What may an agent decide or do once the inputs and results of a menstrual cycle 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 menstrual cycle 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 menstrual cycle 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 menstrual cycle 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 menstrual cycle 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 menstrual cycle?", "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 menstrual cycle?", "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 menstrual cycle 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 menstrual cycle and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a menstrual cycle, 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 menstrual cycle, 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 menstrual cycle 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 menstrual cycle is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a menstrual cycle, 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 menstrual cycle, 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 menstrual cycle 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 } } } }