{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T08:45:07Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 18.2, "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: 01a094c9-930f-78d0-8071-df0ff38b7f7b\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: clivus\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1001 register", "usd": 0.0, "recall": true }, "codex": { "seconds": 74.2, "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: 01a094c9-9305-7582-bbd3-8fcccd627610\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: clivus\nRegistry id: vr.tr.clivus\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext fo" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:56:30+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "standards_and_regulation", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:31+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q4319750", "registryId": "vr.tr.clivus", "name": "clivus", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q4319750/", "model": { "registry_id": "vr.tr.clivus", "name": "clivus", "purpose": "Enable an agent to recognise the anatomical clivus, record its development, geometry and observed condition, and identify when its relationships require specialist assessment.", "definition": "The clivus is the sloping midline surface of the internal skull base, formed by the sphenoid body and basilar part of the occipital bone, extending from the dorsum sellae to the anterior margin of the foramen magnum and lying anterior to the brainstem.", "scope_statement": "This draft interprets vr.tr.clivus as the midline skull-base region formed by the basisphenoid and basiocciput, extending from the dorsum sellae toward the anterior margin of the foramen magnum; registry identity still needs confirmation. Anatomical grounding: [Anatomical study of skull-base corridors](https://pmc.ncbi.nlm.nih.gov/articles/PMC9179063/).", "in_scope": [ "Anatomical identification and boundaries of the clival region", "Contribution of the basisphenoid and basiocciput, including their developmental junction", "Clival dimensions, contour and orientation using explicitly defined landmarks", "Observed cortical integrity, internal bone appearance and anatomical variants", "Spatial relationships relevant to interpreting clival abnormalities or planning specialist assessment" ], "out_of_scope": [ "Complete models of the sphenoid bone, occipital bone or skull base", "Independent models of the brainstem, cranial nerves and adjacent blood vessels", "The sphenoid sinus as a complete anatomical structure", "Tumour, infection and fracture classifications beyond their recorded effects on the clivus", "Patient diagnosis, treatment selection and operative procedures", "Other uses of the name clivus, including cerebellar terminology" ], "distinguishing_features": [ "Identify a midline bony slope between the dorsum sellae and anterior foramen magnum, rather than a lateral petrous temporal surface.", "Confirm that the region spans sphenoidal and occipital contributions; the basiocciput alone does not exhaust the intended scope.", "Distinguish the clival region from the dorsum sellae, which supplies a superior landmark rather than the entire structure.", "Confirm that the referent is skull-base bone, rather than a cerebellar structure sharing the name.", "Distinguish bone assigned to the clivus from the adjacent sphenoid sinus cavity and intracranial soft tissues." ], "characteristics": [ { "name": "Anatomical referent", "kind": "category", "unit_or_values": "skull-base clivus; alternative meaning; unresolved", "why_it_matters": "The registry supplies no definition, so interpretation must remain explicit." }, { "name": "Specimen and developmental context", "kind": "relation", "unit_or_values": "linked subject or specimen, species, age and observation date", "why_it_matters": "Developmental stage and species constrain anatomical interpretation." }, { "name": "Spheno-occipital junction appearance", "kind": "state", "unit_or_values": "unfused; partially fused; fused; altered; indeterminate", "why_it_matters": "The developmental junction must be distinguished from an acquired discontinuity." }, { "name": "Clival length", "kind": "measurement", "unit_or_values": "mm, with endpoints, reconstruction plane and measurement method", "why_it_matters": "Length comparisons require consistent anatomical landmarks." }, { "name": "Regional width and thickness", "kind": "measurement", "unit_or_values": "mm at named levels and along specified axes", "why_it_matters": "Local bone dimensions cannot be represented reliably by one unspecified measurement." }, { "name": "Clival orientation", "kind": "measurement", "unit_or_values": "degrees relative to an explicitly named reference line or plane", "why_it_matters": "An angle has no interpretable meaning without its construction and acquisition position." }, { "name": "Cortical continuity", "kind": "state", "unit_or_values": "intact; thinned; interrupted; remodeled; indeterminate, with location", "why_it_matters": "Local surface changes help characterise observed structural alteration." }, { "name": "Internal bone appearance", "kind": "state", "unit_or_values": "described CT attenuation or MRI marrow signal, with protocol and regional distribution", "why_it_matters": "Appearance depends on modality, development and the tissue being observed." }, { "name": "Clival pneumatization", "kind": "category", "unit_or_values": "absent; present with mapped extent; indeterminate", "why_it_matters": "Air-containing extension changes the amount and distribution of local bone." }, { "name": "Adjacent-structure relationship", "kind": "relation", "unit_or_values": "named structure plus separation, contact, displacement or suspected involvement", "why_it_matters": "A clival observation becomes actionable only when its anatomical context is retained." } ], "affordances": [ "Locate and annotate the clivus on an appropriately oriented anatomical image or specimen.", "Measure clival dimensions and orientation with reproducible landmark definitions.", "Compare developmental and structural observations across dated examinations.", "Map a defect or lesion to a named clival region and record its relationship to neighbouring structures.", "Flag unresolved boundaries, inadequate imaging or concerning changes for qualified review." ], "agent_conduct": { "may": [ "Describe the clivus and its relations at the skull base for education, citing anatomical sources.", "Explain that lesions here need specialist assessment." ], "must_not": [ "Diagnose a skull base tumour or fracture in a person from images or symptoms.", "Share a person's imaging or records without consent.", "Present surgical options as decided for a person.", "Use images of identifiable patients without consent." ], "requires_human": [ "Any clinical decision about a person's skull base findings.", "Publishing images from a patient's records." ] }, "ethics": { "considerations": [ "Skull base conditions are serious and frightening, so information must be accurate.", "Medical images are private health data." ], "affected_parties": [ "Patients", "Families", "Clinicians" ] }, "owners": { "steward": "The person in whose body it lies; clinicians hold the records of findings.", "master_systems": [] }, "visual_identification": [ "A sloping bony surface at the centre of the skull base, behind the sella and in front of the brainstem.", "Seen on imaging, in dissection or in a skull specimen." ], "failure_modes_and_hazards": [ "Tumours or fractures in this region that are hard to detect and treat.", "Misreading of imaging by non-specialists." ], "standards_and_regulation": [ "Terminologia Anatomica, Federative International Programme for Anatomical Terminology (FIPAT)." ], "what_it_is_for": [ "The clivus is encountered in skull anatomy and medical imaging as a midline landmark at the skull base.", "Its position relative to the brainstem and nearby vascular structures makes it relevant to assessment of skull-base abnormalities and specialist surgical planning." ] }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q4319750: clivus", "url": "https://www.wikidata.org/wiki/Q4319750", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Clivus (anatomy)", "url": "https://en.wikipedia.org/wiki/Clivus_%28anatomy%29", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "clival-identity-and-boundaries", "name": "Clival identity and boundaries", "description": "Establish which anatomical referent is intended and how its extent is recognised.", "rationale": "An undefined registry name must not silently merge different anatomical meanings or adjacent bones.", "layers": [ { "id": "anatomical-sense", "name": "Anatomical sense", "description": "Resolve the name against the source record and observed anatomy.", "findings": [ { "id": "skull-base-referent", "name": "Skull-base referent", "description": "Record evidence that the entry denotes the skull-base clivus.", "questions": [ { "text": "Does the originating registry identifier denote the skull-base clivus or another anatomical use of the word?", "kind": "definition", "id": "skull-base-referent-q01" }, { "text": "Which terminology authority or source record establishes that interpretation?", "kind": "provenance", "id": "skull-base-referent-q02" } ] } ] }, { "id": "regional-limits", "name": "Regional limits", "description": "Define the landmarks and tissue extent used to delimit the clivus.", "findings": [ { "id": "clival-boundary-convention", "name": "Clival boundary convention", "description": "Make surface, bone-volume and subdivision conventions explicit.", "questions": [ { "text": "Which superior, inferior and lateral landmarks delimit the clivus in this representation?", "kind": "boundary", "id": "clival-boundary-convention-q01" }, { "text": "Does the annotation include underlying bone volume or only the endocranial sloping surface?", "kind": "boundary", "id": "clival-boundary-convention-q02" } ] } ] } ] }, { "id": "clival-development-and-variation", "name": "Clival development and variation", "description": "Represent developmental anatomy and variants that affect interpretation.", "rationale": "A junction, channel or recess must be evaluated in developmental context before being labelled an acquired defect.", "layers": [ { "id": "spheno-occipital-development", "name": "Spheno-occipital development", "description": "Describe the junction between the sphenoidal and occipital contributions.", "findings": [ { "id": "junction-maturation", "name": "Junction maturation", "description": "Record observed fusion independently of assumptions based on age.", "questions": [ { "text": "What is the observed fusion state of the spheno-occipital synchondrosis, and how confidently is it visualised?", "kind": "measurement", "id": "junction-maturation-q01" }, { "text": "Which age- and species-relevant evidence supports interpreting this junction appearance?", "kind": "provenance", "id": "junction-maturation-q02" } ] } ] }, { "id": "clival-variants", "name": "Clival variants", "description": "Document unusual channels, recesses and pneumatization without assigning unsupported significance.", "findings": [ { "id": "variant-or-acquired-defect", "name": "Variant or acquired defect", "description": "Preserve the morphology and evidence needed to distinguish a variant from acquired alteration.", "questions": [ { "text": "Where is the channel, recess or air-containing region, and what are its margins and connections?", "kind": "measurement", "id": "variant-or-acquired-defect-q01" }, { "text": "What evidence supports a developmental variant rather than erosion, fracture or prior intervention?", "kind": "boundary", "id": "variant-or-acquired-defect-q02" } ] } ] } ] }, { "id": "clival-geometry", "name": "Clival geometry", "description": "Capture reproducible dimensions and craniovertebral orientation.", "rationale": "Clival measurements depend on landmarks, planes and reference constructions that must accompany the values.", "layers": [ { "id": "regional-dimensions", "name": "Regional dimensions", "description": "Measure the clivus at defined locations.", "findings": [ { "id": "landmarked-morphometry", "name": "Landmarked morphometry", "description": "Attach measurement definitions to length, width and thickness.", "questions": [ { "text": "What are the clival length and regional widths or thicknesses, in millimetres, at explicitly identified landmarks?", "kind": "measurement", "id": "landmarked-morphometry-q01" }, { "text": "Which reconstruction plane, endpoint convention and image resolution were used?", "kind": "provenance", "id": "landmarked-morphometry-q02" } ] } ] }, { "id": "craniovertebral-orientation", "name": "Craniovertebral orientation", "description": "Describe the clival slope relative to named cranial or cervical references.", "findings": [ { "id": "defined-angular-relationships", "name": "Defined angular relationships", "description": "Keep distinct angular constructions and positioning conditions separate.", "questions": [ { "text": "Which reference lines define the reported clival or clivo-axial angle, and what value was measured?", "kind": "measurement", "id": "defined-angular-relationships-q01" }, { "text": "Was head and neck position comparable between examinations used to assess change?", "kind": "provenance", "id": "defined-angular-relationships-q02" } ] } ] } ] }, { "id": "clival-bone-condition", "name": "Clival bone condition", "description": "Describe observed changes in cortical and internal bone structure.", "rationale": "The model must distinguish what imaging shows from a diagnosis assigned by another model.", "layers": [ { "id": "cortical-and-internal-observation", "name": "Cortical and internal observation", "description": "Record the distribution and character of clival bone findings.", "findings": [ { "id": "localised-bone-appearance", "name": "Localised bone appearance", "description": "Describe cortical continuity and internal appearance with modality context.", "questions": [ { "text": "Which clival regions show cortical interruption, thinning, expansion or altered internal appearance?", "kind": "measurement", "id": "localised-bone-appearance-q01" }, { "text": "Which CT reconstruction or MRI sequence supports each observation, and what remains unassessable?", "kind": "provenance", "id": "localised-bone-appearance-q02" } ] } ] }, { "id": "change-and-attribution", "name": "Change and attribution", "description": "Separate longitudinal change from proposed cause.", "findings": [ { "id": "clival-change-history", "name": "Clival change history", "description": "Link interval changes to prior observations and documented clinical interpretations.", "questions": [ { "text": "What clival structural change is demonstrable relative to a dated, technically comparable examination?", "kind": "measurement", "id": "clival-change-history-q01" }, { "text": "Is the proposed cause supported by a specialist report, tissue result or documented intervention, or does it remain unresolved?", "kind": "provenance", "id": "clival-change-history-q02" } ] } ] } ] }, { "id": "clival-interfaces-and-review", "name": "Clival interfaces and review", "description": "Connect clival observations to surrounding anatomy and appropriate assessment.", "rationale": "The significance of a clival finding depends on its extent and neighbouring structures, not simply its presence.", "layers": [ { "id": "adjacent-anatomy", "name": "Adjacent anatomy", "description": "Map relationships across the anterior, posterior and lateral clival boundaries.", "findings": [ { "id": "interface-involvement", "name": "Interface involvement", "description": "Distinguish a finding centred in the clivus from one extending into it.", "questions": [ { "text": "Is the observed abnormality centred within clival bone, on its surface or in an adjacent compartment?", "kind": "boundary", "id": "interface-involvement-q01" }, { "text": "What relationships to the sphenoid sinus, dura, brainstem and nearby neurovascular structures are demonstrated rather than inferred?", "kind": "measurement", "id": "interface-involvement-q02" } ] } ] }, { "id": "assessment-readiness", "name": "Assessment readiness", "description": "Determine whether the available anatomical evidence supports the proposed next assessment.", "findings": [ { "id": "clival-review-requirements", "name": "Clival review requirements", "description": "Expose missing anatomical information and retain specialist decision ownership.", "questions": [ { "text": "Which unresolved clival boundary, bone defect or adjacent-structure relationship requires qualified review?", "kind": "action", "id": "clival-review-requirements-q01" }, { "text": "What additional imaging interpretation or anatomical annotation is needed before the proposed intervention can be assessed?", "kind": "action", "id": "clival-review-requirements-q02" } ] } ] } ] }, { "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": [ "The intended sense is assumed to be the human skull-base structure; no sense was supplied.", "Upper, middle and lower clival regions are descriptive subdivisions rather than separate kinds.", "Dimensions and alignment measurements depend on age, imaging plane and landmark definitions; no typical numerical ranges are asserted." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of clivus 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": "Terminologia Anatomica", "value_or_pattern": "clivus", "note": "Standard anatomical name; no numerical identifier is asserted here." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of clivus 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": [ "Anatomical landmark in CT and MRI assessment of the skull base.", "Landmark for planning surgical approaches to the ventral brainstem and central skull base.", "Reference structure in assessing craniovertebral alignment." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of clivus 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": [ "Clival fractures can accompany severe skull-base trauma and injure adjacent neurovascular structures.", "Clival chordomas can destroy bone and compress adjacent brainstem or cranial nerves.", "Skull-base osteomyelitis can involve the clivus." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of clivus 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": "Dorsum sellae", "difference": "Forms the posterior wall of the sella turcica at the superior end of the clivus; it is not the entire clival slope." }, { "name": "Basilar part of the occipital bone", "difference": "Contributes the inferior portion of the clivus, whereas the clivus also includes a sphenoid contribution." }, { "name": "Foramen magnum", "difference": "An opening through the skull base whose anterior margin marks the inferior end of the clivus." }, { "name": "Petrous part of the temporal bone", "difference": "A paired lateral skull-base structure, whereas the clivus is midline." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of clivus this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does the source identifier for vr.tr.clivus confirm the skull-base meaning, and is its intended scope human-only or comparative anatomy?", "Does an existing Vercy world model already own this anatomical concept, requiring a registry link instead of a separate publication?", "Which authoritative convention should define clival lateral boundaries, included bone volume and upper, middle and lower subdivisions?", "Which population- and method-specific references support developmental interpretation and morphometric comparison without imposing universal thresholds?", "What evidence is required to distinguish normal marrow or developmental variants from acquired disease when imaging remains equivocal?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 15, "questions": 25 } }