{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T10:25:17Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 14.3, "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: 01a09525-40db-77c1-95ce-29cd10316927\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: igil\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 registered", "usd": 0.0, "recall": true }, "codex": { "seconds": 75.6, "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: 01a09525-40db-7653-bc70-d2b141ae3bf4\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: igil\nRegistry id: vr.tr.igil\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext for th" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:53:40+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:26+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q1572629", "registryId": "vr.tr.igil", "name": "igil", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1572629/", "model": { "registry_id": "vr.tr.igil", "name": "igil", "purpose": "Enable an agent to recognise an igil, assess its playing condition, and select appropriate tuning, handling and maintenance actions.", "definition": "An igil is a traditional Tuvan two-string bowed fiddle with a long neck and a skin-covered resonator, played upright with the strings stopped by light finger contact rather than pressed against a fingerboard.", "scope_statement": "This model owns the identifying construction, acoustic setup, playable states and care requirements of the igil kind registered as vr.tr.igil in PHY / PHY.OBJ, with instrument-specific observations recorded against that kind.", "in_scope": [ "Identification as an igil using construction and documented Tuvan musical context", "Resonator, neck, strings, bridge, pegs and compatible bow", "Tuning, string geometry and bowed response", "Playing posture, fingering interface and musical suitability", "Condition, replacement compatibility and limits on intervention" ], "out_of_scope": [ "Morin khuur, byzaanchy and other neighbouring instrument kinds", "Throat-singing techniques and the human voice", "Compositions, performances and sound recordings as creative works", "Maker biographies and ownership histories beyond identification evidence", "Generic bow manufacture, amplification equipment and transport cases" ], "distinguishing_features": [ "Check for the characteristic combination of two strings, bowed operation and a body supported between the player's legs. [Alash instrument guide](https://alashensemble.com/instruments.htm)", "Inspect for an unfretted playing interface using light string contact rather than assuming violin-style pressing against a fingerboard. [Alash instrument guide](https://alashensemble.com/instruments.htm)", "Use a teardrop-shaped resonator as supporting evidence; a carved horse head alone does not establish igil identity. [Alash instrument guide](https://alashensemble.com/instruments.htm)", "Require documented naming or practitioner attribution when distinguishing an igil from visually similar regional fiddles.", "Treat departures from the usual string count as an identification question requiring evidence, rather than automatically excluding the instrument." ], "characteristics": [ { "name": "Instrument attribution", "kind": "relation", "unit_or_values": "Maker, practitioner or collection record identifying the instrument as an igil", "why_it_matters": "Resolves identification where appearance overlaps with neighbouring fiddle traditions." }, { "name": "String configuration", "kind": "category", "unit_or_values": "Number of sounding strings; material and construction of each", "why_it_matters": "Supports identification and determines replacement and tuning compatibility." }, { "name": "Resonator face", "kind": "category", "unit_or_values": "Skin, wood, other documented construction, unknown", "why_it_matters": "Changes the inspection and care needed for the sound-producing body." }, { "name": "Vibrating string length", "kind": "measurement", "unit_or_values": "mm, measured separately for each sounding string", "why_it_matters": "Provides context for pitch, replacement strings and playing geometry." }, { "name": "Open-string tuning", "kind": "measurement", "unit_or_values": "Hz per string; interval in cents; reference pitch and measurement conditions", "why_it_matters": "Separates measured tuning from a player's intended setup." }, { "name": "String clearance", "kind": "measurement", "unit_or_values": "mm at explicitly identified positions along the neck", "why_it_matters": "Helps investigate difficult fingering or unwanted contact without imposing violin setup assumptions." }, { "name": "Bow compatibility", "kind": "relation", "unit_or_values": "Associated bow, hair condition and observed access to sounding strings", "why_it_matters": "A complete instrument may still lack a bow suitable for controlled playing." }, { "name": "Playing readiness", "kind": "state", "unit_or_values": "Unassessed, playable, playable with limitations, adjustment needed, withheld from playing", "why_it_matters": "Connects observed string, bridge and body condition to permitted actions." }, { "name": "Tuning stability", "kind": "measurement", "unit_or_values": "Pitch drift in cents over a stated duration and playing protocol", "why_it_matters": "Helps distinguish an initial tuning error from an unstable setup." } ], "affordances": [ "Identify a candidate igil and flag uncertain attribution for practitioner review.", "Compare its measured tuning with a documented player-requested setup.", "Select a compatible bow and assess access to each string.", "Conduct a limited playing assessment when its condition permits.", "Identify string, bridge, peg or resonator problems requiring adjustment or specialist repair.", "Prepare construction-specific handling and storage instructions from maker or conservation guidance." ], "agent_conduct": { "may": [ "Describe the igil, its construction and its role in Tuvan music from reputable sources.", "Help a user tune, play or record one." ], "must_not": [ "Misrepresent its origin or the traditions of Tuvan musicians.", "Present a mass-made instrument as handmade by a named master without evidence.", "Help trade instruments made with protected animal materials in breach of the law." ], "requires_human": [ "Exporting or selling instruments with skin, horsehair or carved heads of uncertain origin." ] }, "ethics": { "considerations": [ "The igil belongs to a living tradition of a small people; credit and respect matter.", "Animal materials raise welfare and legal questions in trade." ], "affected_parties": [ "Tuvan musicians and communities", "Buyers and collectors" ] }, "owners": { "steward": "The person who owns and plays it.", "master_systems": [] }, "visual_identification": [ "A two-string upright fiddle with a long neck and a small skin-covered body.", "Often a carved horse head at the top of the neck and horsehair strings." ], "failure_modes_and_hazards": [ "Skin membranes split with dryness or damp." ], "what_it_is_for": [ "The igil is used in Tuvan traditional music for instrumental performance and accompaniment to singing, including throat singing.", "It is encountered in cultural performances, music teaching, instrument collections and studies of Tuvan musical traditions." ], "standards_and_regulation": [ "The revised Hornbostel-Sachs classification published by the Musical Instrument Museums Online consortium provides an organological framework for classifying the igil as a bowed necked lute." ] }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q1572629: igil", "url": "https://www.wikidata.org/wiki/Q1572629", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Igil", "url": "https://en.wikipedia.org/wiki/Igil", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "igil-identity", "name": "Igil identity", "description": "Establish igil identity through physical evidence and attributed musical context.", "rationale": "Regional bowed instruments can share visual features, making a single silhouette or ornament insufficient.", "layers": [ { "id": "construction-signature", "name": "Construction signature", "description": "Compare the candidate's observable form with documented igil construction.", "findings": [ { "id": "combined-identification-evidence", "name": "Combined identification evidence", "description": "Record string arrangement, resonator outline, neck interface and bowing configuration as a combined identification case.", "questions": [ { "text": "Which observed features support identifying this instrument as an igil?", "kind": "definition", "id": "combined-identification-evidence-q01" }, { "text": "Which features leave it confusable with a morin khuur, byzaanchy or another regional fiddle?", "kind": "boundary", "id": "combined-identification-evidence-q02" } ] } ] }, { "id": "attribution-and-variants", "name": "Attribution and variants", "description": "Connect naming and unusual construction to an identifiable source.", "findings": [ { "id": "documented-igil-attribution", "name": "Documented igil attribution", "description": "Preserve the exact attributed name and its evidence; do not silently merge related regional names or reject documented variants.", "questions": [ { "text": "Who identified the instrument as an igil, and where is that identification recorded?", "kind": "provenance", "id": "documented-igil-attribution-q01" }, { "text": "If the construction departs from the usual form, what evidence establishes it as an igil variant?", "kind": "boundary", "id": "documented-igil-attribution-q02" } ] } ] } ] }, { "id": "resonator-and-string-path", "name": "Resonator and string path", "description": "Describe the construction that carries string tension and transmits vibration.", "rationale": "Body construction and string routing determine how an igil can be assessed, adjusted and repaired.", "layers": [ { "id": "soundbox-construction", "name": "Soundbox construction", "description": "Identify the resonator face and the structures beneath it where observable.", "findings": [ { "id": "resonator-material-evidence", "name": "Resonator material evidence", "description": "Document the actual face material and assembly. Alash describes both wooden and skin-faced igils. [Alash instrument guide](https://alashensemble.com/instruments.htm)", "questions": [ { "text": "Is the resonator face wood, skin or another documented material, and how was this established?", "kind": "provenance", "id": "resonator-material-evidence-q01" }, { "text": "What are the body's dimensions and the visible condition of its face and joints?", "kind": "measurement", "id": "resonator-material-evidence-q02" } ] } ] }, { "id": "strings-bridge-and-anchors", "name": "Strings, bridge and anchors", "description": "Trace each string between its attachment points and across the bridge.", "findings": [ { "id": "string-path-geometry", "name": "String path geometry", "description": "Record string materials, attachment details, bridge seating and clearances before proposing replacement or adjustment.", "questions": [ { "text": "What material and construction does each string use, and which evidence supports that identification?", "kind": "provenance", "id": "string-path-geometry-q01" }, { "text": "What are the vibrating lengths, bridge position and clearances along each string path?", "kind": "measurement", "id": "string-path-geometry-q02" }, { "text": "Which replacement or adjustment specifications have the maker or an experienced igil repairer endorsed?", "kind": "action", "id": "string-path-geometry-q03" } ] } ] } ] }, { "id": "tuning-and-bowed-response", "name": "Tuning and bowed response", "description": "Connect the chosen tuning with the instrument's observed acoustic behaviour.", "rationale": "An agent needs an explicit tuning target and a reproducible response check before judging musical readiness.", "layers": [ { "id": "tuning-intent", "name": "Tuning intent", "description": "Separate customary interval descriptions from the setup intended for this instrument.", "findings": [ { "id": "documented-tuning-target", "name": "Documented tuning target", "description": "Record both target pitches and their authority. Alash's Achai notes describe fifth and fourth tunings, so no single interval should be imposed universally. [Achai liner notes](https://www.alashensemble.com/CDs/Achai_liner-notes.pdf)", "questions": [ { "text": "Which open-string pitches and interval does the player or maker specify for this use?", "kind": "provenance", "id": "documented-tuning-target-q01" }, { "text": "What pitches are measured, and how far do they differ from the specified targets?", "kind": "measurement", "id": "documented-tuning-target-q02" } ] } ] }, { "id": "response-assessment", "name": "Response assessment", "description": "Assess the sounding strings under documented bowing conditions.", "findings": [ { "id": "bowed-response-and-drift", "name": "Bowed response and drift", "description": "Record onset, sustained response, unwanted contact and pitch drift without treating every complex tone as a defect.", "questions": [ { "text": "Under which bow, player and tuning conditions were response and pitch stability assessed?", "kind": "provenance", "id": "bowed-response-and-drift-q01" }, { "text": "Which strings or playing positions exhibit unstable response, unwanted contact or measurable drift?", "kind": "measurement", "id": "bowed-response-and-drift-q02" }, { "text": "Does practitioner assessment call for technique changes, setup adjustment or repair?", "kind": "action", "id": "bowed-response-and-drift-q03" } ] } ] } ] }, { "id": "playing-interface", "name": "Playing interface", "description": "Represent the igil's support, bowing access and fingering requirements.", "rationale": "Playable setup depends on the igil's own handling and fingering practice.", "layers": [ { "id": "support-and-bow-access", "name": "Support and bow access", "description": "Assess how the body is supported and how the bow reaches the strings.", "findings": [ { "id": "supported-playing-position", "name": "Supported playing position", "description": "Record the demonstrated playing position and any restrictions on bow travel or instrument support.", "questions": [ { "text": "How does the player support this igil without obstructing its strings or loading vulnerable body areas?", "kind": "action", "id": "supported-playing-position-q01" }, { "text": "Can the associated bow reach the intended strings throughout the demonstrated stroke?", "kind": "measurement", "id": "supported-playing-position-q02" } ] } ] }, { "id": "fingering-and-musical-fit", "name": "Fingering and musical fit", "description": "Connect the string interface with a practitioner's intended use.", "findings": [ { "id": "technique-specific-playability", "name": "Technique-specific playability", "description": "Assess neck access and string response using demonstrated igil technique, with the intended musical role recorded separately.", "questions": [ { "text": "Which string-contact technique does the practitioner demonstrate for this instrument?", "kind": "provenance", "id": "technique-specific-playability-q01" }, { "text": "Do its clearances and response support the demonstrated technique across the required range?", "kind": "measurement", "id": "technique-specific-playability-q02" }, { "text": "What tuning or setup changes, if any, are needed for the intended solo or accompaniment role?", "kind": "action", "id": "technique-specific-playability-q03" } ] } ] } ] }, { "id": "condition-and-care", "name": "Condition and care", "description": "Translate the igil's material condition into playing and maintenance decisions.", "rationale": "A sounding instrument can still have compromised strings, supports or resonator components that limit use.", "layers": [ { "id": "playing-condition", "name": "Playing condition", "description": "Inspect the assembled instrument before tuning or sustained bowing.", "findings": [ { "id": "load-bearing-condition", "name": "Load-bearing condition", "description": "Assess string attachments, pegs, bridge, neck and resonator for conditions that require restricted use or specialist examination.", "questions": [ { "text": "Are there frayed strings, slipping pegs, displaced supports, cracks or face deformation?", "kind": "measurement", "id": "load-bearing-condition-q01" }, { "text": "Which observed conditions require withholding tuning or playing pending expert assessment?", "kind": "action", "id": "load-bearing-condition-q02" } ] } ] }, { "id": "material-specific-interventions", "name": "Material-specific interventions", "description": "Select care actions using the actual string and resonator materials.", "findings": [ { "id": "supported-care-plan", "name": "Supported care plan", "description": "Record approved cleaning, storage, restringing and bow-hair care procedures, distinguishing routine player care from maker or conservator work.", "questions": [ { "text": "Which care instructions are documented for this igil's face, finish, strings and bow hair?", "kind": "provenance", "id": "supported-care-plan-q01" }, { "text": "Which interventions can the player perform, and which require an igil maker or conservator?", "kind": "action", "id": "supported-care-plan-q02" }, { "text": "What post-intervention checks establish that bridge position, tuning stability and bowed response are acceptable?", "kind": "action", "id": "supported-care-plan-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": [ "The identification assumes 'igil' denotes the Tuvan musical instrument.", "Traditional strings and bow hair are commonly horsehair, but contemporary materials and construction should be checked for individual instruments.", "No standardized varieties, dimensions, or instrument-specific regulatory standards are confidently recalled." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of igil 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": [ "Accompanying Tuvan singing, including throat singing.", "Performing solo instrumental music.", "Playing in ensembles of traditional Tuvan instruments." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of igil 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": "Number of strings", "typical_range": "2", "unit": "strings" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of igil 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": [ "Wear or breakage of string and bow hairs.", "Changes in humidity affecting the tension of the skin soundboard and the instrument's tuning.", "Cracking or joint separation in wooden components." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of igil 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": [ "The igil is particularly associated with Tuva in southern Siberia.", "Construction varies between makers, including resonator shape and materials; horsehead carvings are common." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of igil 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": "morin khuur", "difference": "A distinct Mongolian two-string bowed fiddle tradition, typically identified by its trapezoidal resonator; a horsehead carving alone does not distinguish it from an igil." }, { "name": "doshpuluur", "difference": "A Tuvan long-necked lute played by plucking rather than bowing." }, { "name": "violin", "difference": "A violin normally has four strings stopped against a fingerboard and is held at the shoulder, unlike the upright, two-string igil." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of igil this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which practitioner-backed criteria distinguish igil variants from related regional fiddles, especially when names or string counts overlap?", "Which string materials, dimensions and tension limits are documented across historical and contemporary igil construction?", "How do tuning targets and fingering practices vary by maker, performer lineage and musical role?", "What material-specific environmental limits and maintenance procedures are supported for skin-faced and wooden-faced igils?", "Are there published igil-specific construction or assessment standards, and which issuing bodies or practitioner organisations recognise them?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 16, "questions": 30 } }