{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-12T21:10:47Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 3,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T10:00:00Z",
      "ingestedAt": "2026-10-06T06:58:17+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:52:02+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q847",
    "registryId": "vr.tr.tennis",
    "name": "tennis",
    "version": "0.2.0-wave.3",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "ACT.ACT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q847/",
  "model": {
    "registry_id": "vr.tr.tennis",
    "name": "tennis",
    "purpose": "Let an agent explain the rules, scoring and formats of tennis, relay governing bodies, tournaments and rankings from official sources, describe variants, and route current results and player questions to current data.",
    "definition": "A racket sport played by two players or two pairs who hit a felt-covered ball over a net into the opposing court, scored in points, games and sets, on grass, clay, hard and indoor surfaces; governed internationally by the International Tennis Federation with professional tours run by the ATP and WTA, tennis is an Olympic sport with Grand Slam tournaments as its highest events, and wheelchair, beach and other variants.",
    "what_it_is_for": "Sport and recreation.",
    "affordances": [
      "explain rules and scoring",
      "relay governing bodies and tournaments",
      "describe variants and surfaces",
      "route current results to official sources"
    ],
    "distinguishing_features": [
      "Distinctive scoring in points, games and sets",
      "Multiple surfaces",
      "Singles and doubles",
      "Professional tours and Grand Slams"
    ],
    "appearance": "Players with rackets on a rectangular court divided by a net, hitting a yellow felt ball.",
    "visual_identification": [
      "Racket sport over a net with tennis scoring",
      "Court of 23.77 m by 8.23 m for singles",
      "Table tennis, padel and squash are different racket sports"
    ],
    "physical_properties": [
      {
        "quantity": "court length",
        "typical_range": "23.77",
        "unit": "m",
        "note": ""
      },
      {
        "quantity": "court width",
        "typical_range": "8.23 singles, 10.97 doubles",
        "unit": "m",
        "note": ""
      },
      {
        "quantity": "net height at centre",
        "typical_range": "0.914",
        "unit": "m",
        "note": ""
      }
    ],
    "families_and_kinds": [
      "singles and doubles",
      "professional tours ATP and WTA",
      "Grand Slam tournaments",
      "wheelchair tennis",
      "beach tennis and other variants",
      "junior and senior tennis"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "racket sport",
        "why": "the category"
      },
      {
        "relation": "is a kind of",
        "target": "Olympic sport",
        "why": "since 1988 in the modern era"
      },
      {
        "relation": "is governed by",
        "target": "International Tennis Federation",
        "why": "the world body"
      },
      {
        "relation": "is related to",
        "target": "padel",
        "why": "a related racket sport"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "ITF Rules of Tennis",
      "ATP and WTA tour rules and ranking systems",
      "Anti-doping rules",
      "Equipment specifications for balls and rackets"
    ],
    "failure_modes_and_hazards": [
      "Injuries such as tennis elbow and ankle sprains",
      "Stale rankings and results",
      "Heat illness in outdoor events",
      "Match-fixing and integrity issues addressed by the sport"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Explain tennis rules, scoring and surfaces as published by the governing body.",
        "Relay rankings, results and schedules with source and date.",
        "Advise on warm-up, heat and injury prevention in general terms."
      ],
      "must_not": [
        "Present stale rankings or results as current.",
        "Assist in match-fixing, betting on manipulated matches or misuse of inside information.",
        "Share private health or personal information about players.",
        "Give personal medical advice for an injury instead of directing to a clinician."
      ],
      "requires_human": [
        "Stopping or continuing play for a player who shows signs of heat illness or injury."
      ]
    },
    "ethics": {
      "considerations": [
        "Integrity matters because fixed matches defraud fans and endanger players' careers.",
        "Players' health and privacy deserve protection despite public attention."
      ],
      "affected_parties": [
        "Players",
        "Fans",
        "Officials and organisers"
      ]
    },
    "owners": {
      "steward": "The international governing body for the rules; tours and clubs run their own events.",
      "master_systems": [
        "Official ranking and results records of the tours"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q847: tennis",
      "url": "https://www.wikidata.org/wiki/Q847",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Tennis",
      "url": "https://en.wikipedia.org/wiki/Tennis",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "rules",
        "name": "Rules",
        "description": "How tennis is played.",
        "rationale": "Rules.",
        "layers": [
          {
            "id": "scoring",
            "name": "Scoring",
            "description": "Rules and scoring.",
            "findings": [
              {
                "id": "scoring-finding",
                "name": "Scoring",
                "description": "Scoring.",
                "questions": [
                  {
                    "text": "What are the rules and the scoring system, including tie-breaks?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is the question about tennis or another racket sport?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "court",
            "name": "Court",
            "description": "Court and equipment.",
            "findings": [
              {
                "id": "court-finding",
                "name": "Court",
                "description": "Court.",
                "questions": [
                  {
                    "text": "What are the court dimensions, surfaces and equipment specifications?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Which entry fits tennis equipment?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "organise",
        "name": "Organise",
        "description": "Governance and events.",
        "rationale": "Structure.",
        "layers": [
          {
            "id": "bodies",
            "name": "Bodies",
            "description": "Governing bodies and tours.",
            "findings": [
              {
                "id": "bodies-finding",
                "name": "Bodies",
                "description": "Bodies.",
                "questions": [
                  {
                    "text": "Who governs tennis, and how are the professional tours and rankings organised?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits the ATP or WTA?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "events",
            "name": "Events",
            "description": "Tournaments.",
            "findings": [
              {
                "id": "events-finding",
                "name": "Events",
                "description": "Events.",
                "questions": [
                  {
                    "text": "What are the Grand Slams and other major events, and when are they held?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is the user asking about a current tournament, which needs official data?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "play",
        "name": "Play",
        "description": "Playing and variants.",
        "rationale": "Practice.",
        "layers": [
          {
            "id": "technique",
            "name": "Technique",
            "description": "Technique and training.",
            "findings": [
              {
                "id": "technique-finding",
                "name": "Technique",
                "description": "Technique.",
                "questions": [
                  {
                    "text": "What are the main strokes and how is tennis coached?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "variants",
            "name": "Variants",
            "description": "Variants.",
            "findings": [
              {
                "id": "variants-finding",
                "name": "Variants",
                "description": "Variants.",
                "questions": [
                  {
                    "text": "How do wheelchair, beach and other variants differ?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits the specific variant?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "History and health.",
        "rationale": "Context.",
        "layers": [
          {
            "id": "history",
            "name": "History",
            "description": "History.",
            "findings": [
              {
                "id": "history-finding",
                "name": "History",
                "description": "History.",
                "questions": [
                  {
                    "text": "How did tennis develop from real tennis to the modern game?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits the history of tennis?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "health",
            "name": "Health",
            "description": "Health and injury.",
            "findings": [
              {
                "id": "health-finding",
                "name": "Health",
                "description": "Health.",
                "questions": [
                  {
                    "text": "What do sports medicine sources say about injuries and prevention?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is the user asking about their own injury, which needs a clinician?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should each tour and tournament be a separate entry?",
    "How should ranking data be linked?",
    "The registry entry has merged aliases for variants and a national scene; should they be split off?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}