{
    "model": {
        "rank": 4631,
        "code": "thing-q180762",
        "model_id": "vr.tr.angina-pectoris",
        "name": "angina pectoris",
        "purpose": "Enable an AI agent to recognise and describe angina pectoris, track its symptom pattern and diagnostic uncertainty, and identify when clinician assessment or an established escalation pathway is needed.",
        "family": "Thing Registry",
        "category": "Information and virtual systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "INF",
        "domain": "INF.KNW",
        "industry": "",
        "version": "",
        "url": "/models/thing/q180762/",
        "tier": 2,
        "score": 73,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "Prinzmetal's angina",
                "unstable angina",
                "microvascular angina",
                "stable angina"
            ],
            "aliasCount": 4,
            "merged": 4,
            "knownIn": 73,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q180762",
                "url": "https://www.wikidata.org/wiki/Q180762",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T20:39:51Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 20.6,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087e5-1687-7f02-b148-e4fbb2fe9a93\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: angina pectoris\nSense to describe: (none recorded)\nDomain code: XCT.STA\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 58.7,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087e5-1688-7b60-9a0a-4dffa821aeec\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: angina pectoris\nRegistry id: vr.tr.angina-pectoris\nPlane / domain: XCT / XCT.STA\nRegistry definition: (none recorded)\nNames folded into this entry: ("
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q180762",
                "registryId": "vr.tr.angina-pectoris",
                "name": "angina pectoris",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "XCT.STA"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q180762/",
            "model": {
                "registry_id": "vr.tr.angina-pectoris",
                "name": "angina pectoris",
                "purpose": "Enable an AI agent to recognise and describe angina pectoris, track its symptom pattern and diagnostic uncertainty, and identify when clinician assessment or an established escalation pathway is needed.",
                "definition": "Angina pectoris is a clinical syndrome of transient chest discomfort or equivalent symptoms caused by myocardial ischemia, typically reflecting an imbalance between myocardial oxygen supply and demand.",
                "scope_statement": "This model owns angina pectoris as a symptomatic clinical syndrome attributed to myocardial ischaemia, including suspected presentations, episode patterns, functional burden and relationships to underlying mechanisms; it does not equate angina with coronary artery disease or myocardial infarction.",
                "in_scope": [
                    "Chest discomfort and associated symptoms considered potentially anginal, with explicit attribution and uncertainty",
                    "Individual episodes and changes in their frequency, duration, triggers and relief",
                    "Clinical classification of angina patterns and suspected mechanisms",
                    "Evidence supporting or challenging an ischaemic explanation",
                    "Functional limitations, documented care plans and escalation status"
                ],
                "out_of_scope": [
                    "Coronary atherosclerosis and coronary anatomy as independently modelled diseases or structures",
                    "Myocardial infarction and other acute coronary syndromes as complete diagnostic and treatment models",
                    "Non-ischaemic causes of chest discomfort as independently modelled conditions",
                    "Silent myocardial ischaemia without an anginal symptom syndrome",
                    "Drug prescribing, revascularisation procedures and rehabilitation programme design"
                ],
                "distinguishing_features": [
                    "Angina requires a symptom syndrome attributed to myocardial ischaemia; a coronary lesion without symptoms does not by itself establish angina.",
                    "Location, quality, radiation, triggers, duration and relief contribute to recognition, but no single symptom feature independently establishes or excludes angina.",
                    "Angina and myocardial infarction are not synonyms: an anginal presentation does not itself establish whether acute myocardial injury has occurred.",
                    "Absence of obstructive disease in major coronary arteries does not by itself exclude an anginal syndrome; the model must permit investigation of other coronary mechanisms.",
                    "A previously reproducible exertional pattern and new, worsening or rest symptoms must remain distinguishable rather than being collapsed into one stable label."
                ],
                "characteristics": [
                    {
                        "name": "Anginal attribution",
                        "kind": "state",
                        "unit_or_values": "Suspected, clinician-established, disputed, alternative explanation favoured, unresolved; record assessor and date",
                        "why_it_matters": "Separates observed symptoms from the clinical interpretation assigned to them."
                    },
                    {
                        "name": "Discomfort phenotype",
                        "kind": "category",
                        "unit_or_values": "Reported location, quality, radiation and associated symptoms, preserving the person's wording",
                        "why_it_matters": "Supports comparison between episodes without reducing angina to the word pain."
                    },
                    {
                        "name": "Episode duration",
                        "kind": "measurement",
                        "unit_or_values": "Seconds or minutes per episode; approximate range and unknown permitted",
                        "why_it_matters": "Helps characterise the presentation and detect changes from the person's established pattern."
                    },
                    {
                        "name": "Episode frequency",
                        "kind": "measurement",
                        "unit_or_values": "Episodes per stated observation period, with activity exposure and recording completeness",
                        "why_it_matters": "A lower episode count may reflect reduced activity rather than improvement."
                    },
                    {
                        "name": "Provocation threshold",
                        "kind": "category",
                        "unit_or_values": "Specific activity and workload, emotional stress, cold exposure, other reported trigger, rest or unknown",
                        "why_it_matters": "Records reproducibility and whether symptoms occur at progressively lower workloads."
                    },
                    {
                        "name": "Relief pattern",
                        "kind": "category",
                        "unit_or_values": "Rest, documented prescribed intervention, spontaneous resolution, no relief or unknown; include elapsed time",
                        "why_it_matters": "Describes episode behaviour without treating relief as diagnostic proof."
                    },
                    {
                        "name": "Clinical pattern",
                        "kind": "state",
                        "unit_or_values": "Documented stable pattern, new onset, worsening pattern, rest symptoms, mixed or unclassified",
                        "why_it_matters": "Makes changes relevant to reassessment visible without automatically assigning an acute diagnosis."
                    },
                    {
                        "name": "Attributed mechanism",
                        "kind": "relation",
                        "unit_or_values": "Links to assessed obstructive coronary disease, vasospastic mechanism, microvascular dysfunction, mixed mechanism or unresolved mechanism",
                        "why_it_matters": "Keeps symptoms distinct from their causes while allowing more than one contributing mechanism."
                    },
                    {
                        "name": "Functional burden",
                        "kind": "measurement",
                        "unit_or_values": "Named assessment instrument and score, or explicitly described activity limitations",
                        "why_it_matters": "Captures consequences that episode counts alone miss."
                    },
                    {
                        "name": "Assessment disposition",
                        "kind": "state",
                        "unit_or_values": "Not assessed, assessment pending, urgent escalation initiated, under evaluation or follow-up plan documented",
                        "why_it_matters": "Prevents incomplete evaluation from being represented as established reassurance."
                    }
                ],
                "affordances": [
                    "Build an episode history that preserves patient descriptions, timing and information gaps.",
                    "Compare current symptoms with an explicitly dated baseline and flag material changes.",
                    "Assemble evidence for clinician review while separating symptoms, test observations and diagnostic interpretations.",
                    "Link the syndrome to independently maintained coronary disease or mechanism models.",
                    "Track symptom burden alongside activity exposure and documented treatment changes.",
                    "Identify when a documented escalation rule applies and record the resulting handoff."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "anginal-symptom-identity",
                        "name": "Anginal symptom identity",
                        "description": "Represent what was experienced and why it is being considered angina.",
                        "rationale": "The model must distinguish a symptom report from an established ischaemic attribution.",
                        "layers": [
                            {
                                "id": "episode-phenotype",
                                "name": "Episode phenotype",
                                "description": "Describe discomfort and accompanying symptoms at the episode level.",
                                "findings": [
                                    {
                                        "id": "reported-discomfort",
                                        "name": "Reported discomfort",
                                        "description": "Record location, quality, radiation and associated symptoms without imposing a stereotyped presentation.",
                                        "questions": [
                                            {
                                                "text": "How does the person describe the discomfort, where is it felt, and does it radiate?",
                                                "kind": "measurement",
                                                "id": "reported-discomfort-q01"
                                            },
                                            {
                                                "text": "Which associated symptoms occurred during the same episode, and which were present independently?",
                                                "kind": "boundary",
                                                "id": "reported-discomfort-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "syndrome-attribution",
                                "name": "Syndrome attribution",
                                "description": "Identify the basis and limits of calling the presentation angina.",
                                "findings": [
                                    {
                                        "id": "ischaemic-attribution",
                                        "name": "Ischaemic attribution",
                                        "description": "Keep the angina label linked to its assessor, evidence and degree of certainty.",
                                        "questions": [
                                            {
                                                "text": "Who attributed these symptoms to myocardial ischaemia, when, and on what evidence?",
                                                "kind": "provenance",
                                                "id": "ischaemic-attribution-q01"
                                            },
                                            {
                                                "text": "Is this an established anginal syndrome, suspected angina, or a symptom presentation with competing explanations?",
                                                "kind": "definition",
                                                "id": "ischaemic-attribution-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "episode-pattern-and-change",
                        "name": "Episode pattern and change",
                        "description": "Describe provocation, relief and evolution relative to an established baseline.",
                        "rationale": "The clinical meaning of angina depends on when it occurs and how its pattern changes.",
                        "layers": [
                            {
                                "id": "provocation-and-resolution",
                                "name": "Provocation and resolution",
                                "description": "Relate episodes to workload, context and the circumstances of relief.",
                                "findings": [
                                    {
                                        "id": "trigger-relief-sequence",
                                        "name": "Trigger and relief sequence",
                                        "description": "Capture the sequence from activity or rest through onset to resolution.",
                                        "questions": [
                                            {
                                                "text": "What activity, workload or resting context preceded onset, and how reproducible is that association?",
                                                "kind": "measurement",
                                                "id": "trigger-relief-sequence-q01"
                                            },
                                            {
                                                "text": "How long did symptoms last, and what happened before they resolved or persisted?",
                                                "kind": "measurement",
                                                "id": "trigger-relief-sequence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "baseline-deviation",
                                "name": "Baseline deviation",
                                "description": "Compare current symptoms with a dated and adequately observed prior pattern.",
                                "findings": [
                                    {
                                        "id": "changing-anginal-pattern",
                                        "name": "Changing anginal pattern",
                                        "description": "Make new onset, increasing burden, lower provocation thresholds and rest symptoms explicit.",
                                        "questions": [
                                            {
                                                "text": "Compared with the documented baseline, have frequency, duration, intensity or provocation threshold changed?",
                                                "kind": "measurement",
                                                "id": "changing-anginal-pattern-q01"
                                            },
                                            {
                                                "text": "Are rest symptoms new, longstanding or of uncertain onset, and has a clinician assessed the change?",
                                                "kind": "provenance",
                                                "id": "changing-anginal-pattern-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "ischaemic-evidence-and-mechanism",
                        "name": "Ischaemic evidence and mechanism",
                        "description": "Connect the symptom syndrome to investigations, proposed mechanisms and unresolved alternatives.",
                        "rationale": "Neither symptoms nor coronary anatomy alone provide a complete account of angina.",
                        "layers": [
                            {
                                "id": "investigation-interpretation",
                                "name": "Investigation interpretation",
                                "description": "Preserve relevant investigation results together with timing and clinical interpretation.",
                                "findings": [
                                    {
                                        "id": "symptom-evidence-alignment",
                                        "name": "Symptom and evidence alignment",
                                        "description": "Distinguish observed test results from claims about what explains the symptoms.",
                                        "questions": [
                                            {
                                                "text": "Which investigations informed the assessment, and were they performed during symptoms, after symptoms or under provocation?",
                                                "kind": "provenance",
                                                "id": "symptom-evidence-alignment-q01"
                                            },
                                            {
                                                "text": "What does each result support, leave unresolved or fail to exclude according to its documented interpretation?",
                                                "kind": "boundary",
                                                "id": "symptom-evidence-alignment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "mechanism-and-alternatives",
                                "name": "Mechanism and alternatives",
                                "description": "Represent possible coronary mechanisms and competing explanations without forcing exclusivity.",
                                "findings": [
                                    {
                                        "id": "mechanism-confidence",
                                        "name": "Mechanism confidence",
                                        "description": "Link each proposed mechanism to supporting evidence and retain uncertainty where attribution is incomplete.",
                                        "questions": [
                                            {
                                                "text": "Which obstructive, vasospastic or microvascular mechanisms have been assessed, and which remain hypotheses?",
                                                "kind": "provenance",
                                                "id": "mechanism-confidence-q01"
                                            },
                                            {
                                                "text": "Which alternative or coexisting causes could explain some episodes, and what evidence distinguishes them?",
                                                "kind": "boundary",
                                                "id": "mechanism-confidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "burden-and-care-response",
                        "name": "Burden and care response",
                        "description": "Represent effects on daily life and the documented response to ongoing or changing symptoms.",
                        "rationale": "An actionable model must connect symptom history to lived limitations and accountable clinical follow-up.",
                        "layers": [
                            {
                                "id": "activity-and-symptom-burden",
                                "name": "Activity and symptom burden",
                                "description": "Assess limitations while accounting for avoidance of symptom-provoking activity.",
                                "findings": [
                                    {
                                        "id": "functional-impact",
                                        "name": "Functional impact",
                                        "description": "Record restricted activities, patient priorities and interpretable burden assessments.",
                                        "questions": [
                                            {
                                                "text": "Which activities are limited or avoided because of symptoms or fear of symptoms?",
                                                "kind": "measurement",
                                                "id": "functional-impact-q01"
                                            },
                                            {
                                                "text": "Does a reported improvement reflect greater activity tolerance, fewer symptoms at comparable activity, or reduced exposure to activity?",
                                                "kind": "boundary",
                                                "id": "functional-impact-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "documented-management-and-escalation",
                                "name": "Documented management and escalation",
                                "description": "Track the applicable clinician-authored plan, observed response and reassessment status.",
                                "findings": [
                                    {
                                        "id": "care-plan-response",
                                        "name": "Care plan response",
                                        "description": "Connect symptom changes to documented interventions and identify required clinical handoffs.",
                                        "questions": [
                                            {
                                                "text": "What current clinician-authored symptom and escalation plan applies, and where is its authoritative record?",
                                                "kind": "provenance",
                                                "id": "care-plan-response-q01"
                                            },
                                            {
                                                "text": "Do the recorded symptoms meet an applicable escalation rule, and has the required assessment or handoff occurred?",
                                                "kind": "action",
                                                "id": "care-plan-response-q02"
                                            },
                                            {
                                                "text": "Following a documented intervention, what changed in symptoms and activity tolerance, and what uncertainty remains about causation?",
                                                "kind": "measurement",
                                                "id": "care-plan-response-q03"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "This describes the cardiovascular clinical syndrome; no narrower registry sense was supplied.",
                                            "The listed kinds overlap: refractory describes treatment resistance, whereas vasospastic and microvascular describe mechanisms.",
                                            "Guideline editions, national coding details, and formal diagnostic criteria require verification; these statements are recalled knowledge, not newly researched findings."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of angina pectoris this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Stable angina",
                                            "Unstable angina",
                                            "Vasospastic angina (variant or Prinzmetal angina)",
                                            "Microvascular angina",
                                            "Refractory angina"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of angina pectoris this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "scheme": "ICD-10",
                                                "value_or_pattern": "I20",
                                                "note": "WHO category for angina pectoris; subcategories distinguish unstable angina, angina with documented spasm, other forms, and unspecified angina."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of angina pectoris this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-standards-and-regulation",
                                        "name": "Standards and regulation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "European Society of Cardiology guidelines for chronic coronary syndromes.",
                                            "European Society of Cardiology guidelines for acute coronary syndromes, including unstable angina.",
                                            "American Heart Association and American College of Cardiology multisociety guideline for chronic coronary disease.",
                                            "Canadian Cardiovascular Society classification of angina severity."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of angina pectoris this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Describing ischemic symptoms in clinical assessment and medical records.",
                                            "Classifying symptom burden and limitation of ordinary physical activity.",
                                            "Informing investigation of obstructive coronary disease, coronary spasm, and coronary microvascular dysfunction.",
                                            "Assessing symptom response to antianginal treatment and coronary revascularization."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of angina pectoris this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "quantity": "Functional limitation using the Canadian Cardiovascular Society angina classification",
                                                "typical_range": "I-IV, from symptoms only with strenuous activity to inability to undertake physical activity without discomfort, with possible symptoms at rest",
                                                "unit": "Ordinal class"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of angina pectoris this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "New, worsening, or rest symptoms can reflect an acute coronary syndrome.",
                                            "Associated coronary disease can lead to myocardial infarction, serious arrhythmias, or death; symptom intensity alone does not establish risk.",
                                            "Ischemic symptoms can be mistaken for gastrointestinal, musculoskeletal, or anxiety-related discomfort.",
                                            "Absence of obstructive coronary disease does not exclude microvascular or vasospastic angina.",
                                            "A normal resting electrocardiogram does not exclude angina."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of angina pectoris this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "ICD-10 national modifications differ in coding detail and may combine angina with documented coronary atherosclerosis."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of angina pectoris this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "Myocardial ischemia",
                                                "difference": "Ischemia is the underlying physiological disturbance and may be silent; angina is its symptomatic clinical expression."
                                            },
                                            {
                                                "name": "Myocardial infarction",
                                                "difference": "Infarction requires acute myocardial injury with evidence of ischemia; angina does not itself establish myocardial necrosis."
                                            },
                                            {
                                                "name": "Coronary artery disease",
                                                "difference": "Coronary disease is an underlying disease process that may occur without angina, while angina can occur without obstructive epicardial coronary disease."
                                            },
                                            {
                                                "name": "Noncardiac chest pain",
                                                "difference": "The discomfort arises from causes other than myocardial ischemia; symptom description alone may not reliably distinguish it."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of angina pectoris this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Which authoritative clinical definitions should govern inclusion of anginal equivalents without chest discomfort, and how should these presentations be labelled?",
                "How should stable or unstable clinical patterns be represented alongside vasospastic and microvascular mechanisms without treating them as mutually exclusive categories?",
                "Which validated burden instruments and meaningful-change thresholds are appropriate for the intended population and setting?",
                "Which jurisdiction-specific escalation pathways should the agent reference, and who is responsible for maintaining them?",
                "Does an existing Vercy world model already own this syndrome or any proposed bundle, requiring a registry link or shared component instead of a duplicate publication?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 17,
                "questions": 26
            }
        },
        "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 angina pectoris, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise and describe angina pectoris, track its symptom pattern and diagnostic uncertainty, and identify when clinician assessment or an established escalation pathway is needed.",
            "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: Prinzmetal's angina, unstable angina, microvascular angina, stable angina.",
                "4 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 73 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 angina pectoris, 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": [
                        "Prinzmetal's angina",
                        "unstable angina",
                        "microvascular angina",
                        "stable angina"
                    ]
                }
            ],
            "standing": "Described in 73 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 4 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 angina pectoris from another, and a angina pectoris 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 angina pectoris, 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 angina pectoris, 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 angina pectoris 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 angina pectoris, 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 angina pectoris, 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 angina pectoris 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 angina pectoris 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 angina pectoris, 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 angina pectoris, 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 angina pectoris 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 angina pectoris from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a angina pectoris, 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 angina pectoris, 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 angina pectoris 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 angina pectoris 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 angina pectoris between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a angina pectoris, 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 angina pectoris, 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 angina pectoris 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 angina pectoris, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a angina pectoris 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 angina pectoris, 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 angina pectoris, 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 angina pectoris 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 angina pectoris 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 angina pectoris contains and in what form it is held.",
                                        "questions": [
                                            {
                                                "id": "content-and-format-q01",
                                                "text": "What identifies and describes the content of a angina pectoris, 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 angina pectoris, 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 angina pectoris 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 angina pectoris and the period it survives.",
                                        "questions": [
                                            {
                                                "id": "access-rules-q01",
                                                "text": "What identifies and describes access to a angina pectoris, 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 angina pectoris, 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 angina pectoris 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 angina pectoris 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 angina pectoris 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 angina pectoris 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 angina pectoris 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 angina pectoris 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 angina pectoris, 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 angina pectoris 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 angina pectoris and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a angina pectoris, 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 angina pectoris, 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 angina pectoris 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 angina pectoris is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a angina pectoris, 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 angina pectoris, 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 angina pectoris 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
            }
        }
    }
}