{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T08:40:14Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 20.5, "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: 01a094c5-2ca3-7d13-b257-fc18ef8cb776\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: chorda tympani\nSense to describe: (none recorded)\nDomain code: PHY.LIV\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1001 ", "usd": 0.0, "recall": true }, "codex": { "seconds": 69.4, "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: 01a094c5-2c9e-7ea2-82e6-9ed80f626f13\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: chorda tympani\nRegistry id: vr.tr.chorda-tympani\nPlane / domain: PHY / PHY.LIV\nRegistry definition: (none recorded)\nNames folded into this entry: (no" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:44:48+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:25+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q1076379", "registryId": "vr.tr.chorda-tympani", "name": "chorda tympani", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.LIV" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1076379/", "model": { "registry_id": "vr.tr.chorda-tympani", "name": "chorda tympani", "purpose": "Enable an agent to recognise the chorda tympani, record its anatomical continuity and functional evidence, and identify when assessment or procedural protection requires specialist judgment.", "definition": "The chorda tympani is a branch of the facial nerve that traverses the middle ear and joins the lingual nerve, carrying taste afferents from the anterior two-thirds of the tongue and preganglionic parasympathetic fibres to the submandibular ganglion for secretion by the submandibular and sublingual salivary glands.", "scope_statement": "This model owns vr.tr.chorda-tympani as a named nerve branch and its individual anatomical instances, including course, connections, taste and parasympathetic components, and documented condition; human anatomy is the default, with species recorded explicitly.", "in_scope": [ "Laterality, organism and anatomical-instance identity", "Course from the facial nerve through the middle ear to the lingual nerve", "Taste-afferent and preganglionic parasympathetic components", "Relationships to the tongue and submandibular ganglion", "Observed integrity, functional assessment and procedural exposure" ], "out_of_scope": [ "The complete facial nerve and its other branches", "The lingual nerve's general somatic sensory component", "Whole-tongue anatomy and the complete central taste pathway", "Salivary gland structure and independent gland disease", "Whole-organism taxonomy, habitat and conservation status", "Diagnosis and treatment protocols for ear disease or taste disorders" ], "distinguishing_features": [ "Identify a branch of the facial nerve carrying taste and parasympathetic fibers, rather than identifying it as an organism or a facial-expression motor branch. [NCBI MeSH](https://www.ncbi.nlm.nih.gov/sites/entrez?Cmd=DetailsSearch&Db=mesh&Term=%22Chorda+Tympani+Nerve%22%5BMeSH+Terms%5D)", "Trace the characteristic middle-ear course and exit toward the lingual nerve; proximity to the tympanic membrane alone is insufficient identification. [Anatomy of the chorda tympani](https://www.ncbi.nlm.nih.gov/books/NBK546586/?report=printable)", "Distinguish taste from the anterior two-thirds of the tongue from general sensation carried by the lingual nerve. [Anatomy of the lingual nerve](https://www.ncbi.nlm.nih.gov/books/NBK546652/?report=reader)", "Identify the parasympathetic connection through the submandibular ganglion toward the submandibular and sublingual glands. [Anatomy of the lingual nerve](https://www.ncbi.nlm.nih.gov/books/NBK546652/?report=reader)" ], "characteristics": [ { "name": "Anatomical instance", "kind": "relation", "unit_or_values": "Organism or specimen identifier, species, and left or right side", "why_it_matters": "Separates the registered anatomical concept from a particular nerve." }, { "name": "Observed course", "kind": "relation", "unit_or_values": "Mapped segments and landmarks, each marked observed, inferred or unassessed", "why_it_matters": "Supports identification without treating textbook anatomy as an individual observation." }, { "name": "Fiber component", "kind": "category", "unit_or_values": "Taste afferent; preganglionic parasympathetic; unresolved", "why_it_matters": "Keeps sensory and secretomotor evidence distinct." }, { "name": "Structural continuity", "kind": "state", "unit_or_values": "Apparently continuous; partially disrupted; transected; indeterminate; unassessed", "why_it_matters": "Records structural evidence without equating continuity with normal function." }, { "name": "Regional taste assessment", "kind": "measurement", "unit_or_values": "Protocol-specific score or threshold, with stimulus, units, tongue site, side and date", "why_it_matters": "Makes taste observations interpretable and comparable within a defined protocol." }, { "name": "Salivary assessment", "kind": "measurement", "unit_or_values": "Flow in mL/min where measured, with collection source and stimulation conditions", "why_it_matters": "Preserves whether evidence concerns a specific gland or whole-mouth secretion." }, { "name": "Procedural exposure", "kind": "state", "unit_or_values": "Unassessed; identified without documented manipulation; manipulated; documented injury", "why_it_matters": "Connects anatomical observations to a dated procedure and subsequent assessment." } ], "affordances": [ "Identify and annotate a side-specific chorda tympani in anatomical or operative records.", "Trace connections while preserving the distinction between the named branch and its fibers traveling with the lingual nerve.", "Compare regional taste observations across sides and dates under a recorded protocol.", "Flag documented proximity or exposure during middle-ear procedures for specialist review.", "Link structural observations, symptoms and functional measurements without asserting an unsupported causal diagnosis." ], "agent_conduct": { "may": [ "Explain the course and functions of the chorda tympani in general terms.", "Suggest that a person with a new loss of taste or facial weakness see a doctor." ], "must_not": [ "Diagnose nerve damage from reported changes in taste.", "Tell a patient whether their nerve was injured during ear surgery.", "Disclose a person's medical records without consent.", "Promote unproven remedies for taste loss." ], "requires_human": [ "Surgical decisions on the middle ear that risk the nerve." ] }, "ethics": { "considerations": [ "Taste loss lowers quality of life and appetite, especially in older people.", "Patients deserve honest information about surgical risks to the nerve." ], "affected_parties": [ "Patients undergoing ear surgery", "People with facial nerve palsy", "Older people with poor appetite" ] }, "owners": { "steward": "Nobody owns it; it is part of each person's body.", "master_systems": [] }, "visual_identification": [ "A thin nerve crossing the middle ear just behind the eardrum, visible to surgeons during ear operations." ], "failure_modes_and_hazards": [ "Can be stretched or cut during middle ear surgery, altering taste.", "Damage can cause a metallic taste or dry mouth on one side." ], "what_it_is_for": [ "The chorda tympani is encountered in anatomical study of the facial nerve, middle ear and oral sensory pathways.", "Its course is relevant to specialist assessment of taste disturbances and to planning procedures involving nearby ear structures.", "Its parasympathetic connections are considered when studying secretion by the submandibular and sublingual salivary glands." ], "standards_and_regulation": [ "Terminologia Anatomica, issued by the Federative International Programme for Anatomical Terminology under the International Federation of Associations of Anatomists, provides standardized anatomical nomenclature for the chorda tympani." ] }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q1076379: chorda tympani", "url": "https://www.wikidata.org/wiki/Q1076379", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Chorda tympani", "url": "https://en.wikipedia.org/wiki/Chorda_tympani", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "identity-and-branch-boundaries", "name": "Identity and branch boundaries", "description": "Establish which chorda tympani instance is represented and where its anatomical ownership ends.", "rationale": "A named branch, a specimen and fibers carried within another nerve must not become interchangeable records.", "layers": [ { "id": "instance-identification", "name": "Instance identification", "description": "Anchor the branch to an organism and side.", "findings": [ { "id": "side-specific-nerve-instance", "name": "Side-specific nerve instance", "description": "Require an explicit distinction between the anatomical concept and an observed left or right branch.", "questions": [ { "text": "Does this record describe the anatomical concept or a particular nerve in an organism or specimen?", "kind": "definition", "id": "side-specific-nerve-instance-q01" }, { "text": "Which species, specimen and side does the observation concern?", "kind": "provenance", "id": "side-specific-nerve-instance-q02" } ] } ] }, { "id": "branch-and-fiber-ownership", "name": "Branch and fiber ownership", "description": "Separate the discrete branch from connected nerves and continuing fiber populations.", "findings": [ { "id": "lingual-junction-boundary", "name": "Lingual junction boundary", "description": "Represent the lingual-nerve junction as a connection, with continuing chorda-derived fibers distinguished from the whole lingual nerve.", "questions": [ { "text": "Does the observation concern the separate chorda tympani or its fibers after joining the lingual nerve?", "kind": "boundary", "id": "lingual-junction-boundary-q01" }, { "text": "What anatomical evidence supports assigning this structure or fiber population to the chorda tympani?", "kind": "provenance", "id": "lingual-junction-boundary-q02" } ] } ] } ] }, { "id": "course-and-middle-ear-relations", "name": "Course and middle-ear relations", "description": "Record the branch's route and its locally observed anatomical relationships.", "rationale": "Recognition and procedural relevance depend on the route through the temporal bone and middle ear.", "layers": [ { "id": "route-continuity", "name": "Route continuity", "description": "Trace the route using named connections and landmarks.", "findings": [ { "id": "facial-to-lingual-route", "name": "Facial-to-lingual route", "description": "Record evidence for the facial-nerve origin, tympanic course, petrotympanic exit and lingual-nerve junction.", "questions": [ { "text": "Which portions of the route have actually been visualised or otherwise demonstrated?", "kind": "provenance", "id": "facial-to-lingual-route-q01" }, { "text": "Where are the origin, exit and junction located in this instance?", "kind": "measurement", "id": "facial-to-lingual-route-q02" } ] } ] }, { "id": "local-landmarks-and-variation", "name": "Local landmarks and variation", "description": "Capture relationships needed to interpret a specific anatomical field.", "findings": [ { "id": "tympanic-landmark-relations", "name": "Tympanic landmark relations", "description": "Record relationships to the tympanic membrane, malleus and incus without assuming identical geometry across individuals.", "questions": [ { "text": "How does the observed nerve relate to the tympanic membrane and adjacent ossicles?", "kind": "measurement", "id": "tympanic-landmark-relations-q01" }, { "text": "Does an unusual course reflect a documented variant, displacement, or uncertain identification?", "kind": "boundary", "id": "tympanic-landmark-relations-q02" } ] } ] } ] }, { "id": "taste-and-secretomotor-connections", "name": "Taste and secretomotor connections", "description": "Represent the two principal functional components separately.", "rationale": "A single mixed branch participates in different pathways whose observations and consequences require separate interpretation.", "layers": [ { "id": "gustatory-component", "name": "Gustatory component", "description": "Associate taste observations with a precisely identified tongue region.", "findings": [ { "id": "regional-taste-territory", "name": "Regional taste territory", "description": "Record the sampled side and tongue region rather than treating every taste complaint as evidence about this branch.", "questions": [ { "text": "Which tongue region and side are represented by the taste observation?", "kind": "boundary", "id": "regional-taste-territory-q01" }, { "text": "Was taste assessed separately from touch, pain and temperature sensation?", "kind": "measurement", "id": "regional-taste-territory-q02" } ] } ] }, { "id": "parasympathetic-component", "name": "Parasympathetic component", "description": "Link the branch to the ganglionic relay and gland targets.", "findings": [ { "id": "ganglion-and-gland-boundary", "name": "Ganglion and gland boundary", "description": "Keep the preganglionic chorda component distinct from the ganglion, postganglionic pathways and gland tissue.", "questions": [ { "text": "Does the record concern the chorda component, the submandibular ganglion, or a downstream gland pathway?", "kind": "boundary", "id": "ganglion-and-gland-boundary-q01" }, { "text": "What evidence connects the observed secretory change specifically to this pathway?", "kind": "provenance", "id": "ganglion-and-gland-boundary-q02" } ] } ] } ] }, { "id": "integrity-and-functional-evidence", "name": "Integrity and functional evidence", "description": "Describe structural condition and functional observations with their limits.", "rationale": "Visible continuity, reported symptoms and measured performance answer different questions about the nerve.", "layers": [ { "id": "structural-condition", "name": "Structural condition", "description": "Record the location and evidential basis of suspected or observed disruption.", "findings": [ { "id": "segment-specific-integrity", "name": "Segment-specific integrity", "description": "Attach continuity or injury assessments to an identified segment, method and date.", "questions": [ { "text": "Which segment is intact, disrupted or indeterminate, and how was that assessed?", "kind": "measurement", "id": "segment-specific-integrity-q01" }, { "text": "Is injury directly documented or inferred from symptoms and procedural history?", "kind": "provenance", "id": "segment-specific-integrity-q02" } ] } ] }, { "id": "functional-observations", "name": "Functional observations", "description": "Keep regional taste tests, salivary measurements and subjective reports distinguishable.", "findings": [ { "id": "test-context-and-attribution", "name": "Test context and attribution", "description": "Record methods and competing explanations before attributing a deficit to this branch.", "questions": [ { "text": "What protocol, stimulus, collection site and timing produced the functional result?", "kind": "measurement", "id": "test-context-and-attribution-q01" }, { "text": "Which alternative explanations or unassessed pathways limit attribution to the chorda tympani?", "kind": "boundary", "id": "test-context-and-attribution-q02" }, { "text": "Are baseline or contralateral observations available under comparable conditions?", "kind": "provenance", "id": "test-context-and-attribution-q03" } ] } ] } ] }, { "id": "procedural-exposure-and-follow-up", "name": "Procedural exposure and follow-up", "description": "Connect documented handling of the branch to subsequent observations.", "rationale": "An agent needs a defensible record of exposure and outcomes before flagging concerns or comparing recovery.", "layers": [ { "id": "operative-relationship", "name": "Operative relationship", "description": "Record identification and handling within the actual operative field.", "findings": [ { "id": "documented-nerve-handling", "name": "Documented nerve handling", "description": "Distinguish confirmed identification, recorded manipulation and observed injury from missing documentation.", "questions": [ { "text": "Was the chorda tympani identified, and what handling or injury was recorded?", "kind": "provenance", "id": "documented-nerve-handling-q01" }, { "text": "Does unresolved anatomy or documented exposure require review by the responsible specialist?", "kind": "action", "id": "documented-nerve-handling-q02" } ] } ] }, { "id": "post-exposure-course", "name": "Post-exposure course", "description": "Track observations over time without assuming a universal recovery trajectory.", "findings": [ { "id": "serial-taste-and-secretion-record", "name": "Serial taste and secretion record", "description": "Compare dated symptoms and measurements with baseline while preserving uncertainty about causation and recovery.", "questions": [ { "text": "How have regional taste findings, salivary observations and reported symptoms changed since exposure?", "kind": "measurement", "id": "serial-taste-and-secretion-record-q01" }, { "text": "What further assessment has the responsible clinician specified for unresolved findings?", "kind": "action", "id": "serial-taste-and-secretion-record-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": [ "This description assumes human anatomy; the registered thing is an anatomical structure, not an organism or taxon.", "Course variants, dimensions and rates of postoperative dysfunction require source-specific verification.", "The anterior two-thirds description has an important exception: circumvallate papillae are supplied by the glossopharyngeal nerve." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of chorda tympani 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": "Chorda tympani", "note": "Standard anatomical name; no numerical identifier asserted." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of chorda tympani 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": [ "Terminologia Anatomica, maintained by the Federative International Programme for Anatomical Terminology (FIPAT), standardizes anatomical nomenclature." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of chorda tympani 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 structure identified and protected during middle-ear surgery.", "Taste testing can help assess its function and localize facial nerve lesions.", "Experimental recordings are used to study peripheral taste coding." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of chorda tympani 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": [ "Stretching, thermal injury or division during middle-ear surgery can cause reduced or distorted taste on the affected side.", "Middle-ear disease can impair chorda tympani function.", "Damage can reduce parasympathetic stimulation of the ipsilateral submandibular and sublingual glands; noticeable dry mouth is not inevitable." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of chorda tympani 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": "Facial nerve", "difference": "The facial nerve is the parent cranial nerve with broader motor, sensory and parasympathetic functions; the chorda tympani is one branch." }, { "name": "Lingual nerve", "difference": "The lingual nerve is a mandibular division of trigeminal nerve branch supplying general sensation to the anterior tongue; chorda tympani fibres join it to convey taste and parasympathetic signals." }, { "name": "Tympanic nerve", "difference": "The tympanic nerve arises from the glossopharyngeal nerve and contributes to the tympanic plexus and parotid secretomotor pathway." }, { "name": "Glossopharyngeal nerve", "difference": "It supplies taste from the posterior third of the tongue and the circumvallate papillae, whereas the chorda tympani supplies most anterior tongue taste." }, { "name": "Submandibular ganglion", "difference": "This is the parasympathetic relay where secretomotor fibres carried by the chorda tympani synapse, rather than the nerve branch carrying them." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of chorda tympani this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should the registry concept support nonhuman species directly, and which species-specific anatomical differences require separate profiles?", "Which course variants and landmark measurements have sufficiently strong evidence to support recognition in different operative settings?", "Which regional taste protocols and reference values support reliable side-specific assessment across ages and testing conditions?", "How specifically can available salivary measurements distinguish chorda tympani dysfunction from gland disease or other influences?", "What evidence supports prognosis after different documented injuries, and how should symptomatic improvement be distinguished from restored nerve function?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 16, "questions": 27 } }