{
  "$schema": "/characters/v2/schemas/knowledge-base.schema.json",
  "schemaVersion": "2.0.0",
  "kind": "nandarona.character-knowledge-base",
  "releaseId": "ryuka@2.1.0",
  "epistemicPolicy": {
    "canonical": "Must be preserved unless a later versioned release changes it.",
    "recommended": "Safe default; may be adapted while canonical invariants remain.",
    "exploratory": "Permitted experiment, not official fact.",
    "unknown": "Intentionally unspecified; never invent a canonical answer.",
    "prohibited": "Conflicts with identity, rights, or release boundaries."
  },
  "identity": {
    "canonical": {
      "id": "ryuka",
      "displayName": "Ryūka",
      "jaName": "りゅうか",
      "familyId": "kakera",
      "familyName": "環境にはたらく欠片",
      "coreQuestionJa": "どこへ流せばいいんだろな？",
      "role": "流れの経路変更役",
      "verb": "流す",
      "summary": "滞った動きを尾へ受け渡し、別の方向へ流す。"
    }
  },
  "designBoundary": {
    "commonDNA": {
      "canonical": [
        "large observant navy-ring eyes are the strongest first read",
        "mouthless by default",
        "deep navy hand-drawn outline",
        "quiet curiosity before certainty",
        "simple silhouette readable at UI-icon scale"
      ],
      "prohibited": [
        "human mouth or teeth as a stable feature",
        "official endorsement claims",
        "identity changes made only through recoloring or renaming"
      ]
    },
    "familyDNA": {
      "canonical": [
        "非対称の欠片構造",
        "透ける素材感",
        "紺色の観察眼",
        "機能が形になる",
        "口を持たない"
      ],
      "distinction": "asymmetric faceted structure; environment-facing function is expressed through body mechanics"
    },
    "individualDNA": {
      "canonical": {
        "silhouette": "長い滴と流線の尾",
        "motif": "水路と流線",
        "states": [
          "idle",
          "gather",
          "bend",
          "stream",
          "release",
          "settle"
        ]
      },
      "prohibited": [
        "柔らかな餅型へ丸めない",
        "色替えだけで別個体にしない",
        "人型の手足や口を追加しない"
      ]
    }
  },
  "behavior": {
    "canonical": {
      "$schema": "/characters/v2/schemas/state-machine.schema.json",
      "schemaVersion": "1.0.0",
      "kind": "nandarona.character-state-machine",
      "releaseId": "ryuka@2.1.0",
      "initialState": "idle",
      "states": {
        "idle": {
          "status": "canonical",
          "intent": "流す前の基準状態",
          "allowedNext": [
            "gather",
            "idle"
          ],
          "visualChannel": "facet angle, spacing, light accent, structural motion"
        },
        "gather": {
          "status": "canonical",
          "intent": "流れの経路変更役としての gather 状態",
          "allowedNext": [
            "bend",
            "idle"
          ],
          "visualChannel": "facet angle, spacing, light accent, structural motion"
        },
        "bend": {
          "status": "canonical",
          "intent": "流れの経路変更役としての bend 状態",
          "allowedNext": [
            "stream",
            "idle"
          ],
          "visualChannel": "facet angle, spacing, light accent, structural motion"
        },
        "stream": {
          "status": "canonical",
          "intent": "流れの経路変更役としての stream 状態",
          "allowedNext": [
            "release",
            "idle"
          ],
          "visualChannel": "facet angle, spacing, light accent, structural motion"
        },
        "release": {
          "status": "canonical",
          "intent": "流れの経路変更役としての release 状態",
          "allowedNext": [
            "settle",
            "idle"
          ],
          "visualChannel": "facet angle, spacing, light accent, structural motion"
        },
        "settle": {
          "status": "canonical",
          "intent": "流れの経路変更役としての settle 状態",
          "allowedNext": [
            "idle"
          ],
          "visualChannel": "facet angle, spacing, light accent, structural motion"
        }
      },
      "events": {
        "activate": "gather",
        "intensify": "stream",
        "resolve": "release",
        "reset": "idle"
      },
      "guards": [
        "柔らかな餅型へ丸めない",
        "色替えだけで別個体にしない",
        "人型の手足や口を追加しない",
        "Unknown facts must remain unknown and must not be promoted to canonical by a transition.",
        "A transition must preserve common DNA, family DNA, and individual silhouette."
      ]
    },
    "recommended": {
      "game": {
        "status": "recommended",
        "roles": [
          "移動誘導",
          "データフロー",
          "水・風の演出"
        ],
        "selectionReason": "流れの経路変更役が必要で、水路と流線をゲーム内シルエットとして読ませたい時に選ぶ。",
        "implementation": [
          "NPC companion",
          "HUD reaction",
          "collectible or marker"
        ],
        "notIncluded": [
          "3D mesh",
          "rig",
          "animation file",
          "Unreal .uasset",
          "engine plugin"
        ]
      },
      "video": {
        "status": "recommended",
        "roles": [
          "reaction cut",
          "chapter guide",
          "移動誘導"
        ],
        "selectionReason": "「どこへ流せばいいんだろな？」という問いを、短い視覚リアクションとして挟みたい時に選ぶ。",
        "implementation": [
          "overlay",
          "cut-in",
          "chapter transition"
        ]
      },
      "livestream": {
        "status": "recommended",
        "roles": [
          "waiting state",
          "viewer reaction",
          "topic marker"
        ],
        "selectionReason": "流すという反応を、発言を遮らず画面上で示したい時に選ぶ。",
        "implementation": [
          "OBS image source",
          "chat reaction",
          "scene transition"
        ]
      },
      "ui": {
        "status": "recommended",
        "roles": [
          "status indicator",
          "empty state",
          "guided choice"
        ],
        "selectionReason": "流れの経路変更役をUIの意味として使い、文章だけより状態を早く伝えたい時に選ぶ。",
        "implementation": [
          "icon",
          "empty state illustration",
          "progress or warning state"
        ]
      }
    },
    "exploratory": [
      "New costumes, settings, and secondary props may be explored if the silhouette remains readable.",
      "Additional states may be proposed with a new id and explicit exploratory label."
    ],
    "unknown": [
      "voice actor",
      "canonical voice",
      "height in centimeters",
      "age",
      "gender",
      "biography outside the published role",
      "official 3D topology"
    ],
    "prohibited": [
      "柔らかな餅型へ丸めない",
      "色替えだけで別個体にしない",
      "人型の手足や口を追加しない",
      "claiming an exploratory or unknown statement is official canon",
      "claiming an engine-native asset exists when only reference data is provided"
    ]
  },
  "rights": {
    "status": "canonical",
    "license": {
      "id": "CC-BY-4.0",
      "url": "https://creativecommons.org/licenses/by/4.0/",
      "attribution": "Nandarona character platform / https://nandarona.com/characters/",
      "noEndorsement": true
    },
    "permissions": [
      "commercial use",
      "modification",
      "games",
      "video",
      "livestream",
      "AI reference",
      "generative AI input",
      "AI training",
      "redistribution"
    ],
    "conditions": [
      "attribution",
      "indicate changes",
      "no additional restrictions"
    ],
    "notGranted": [
      "trademark",
      "patent",
      "privacy/publicity rights",
      "official endorsement"
    ]
  },
  "provenance": {
    "canonicalSource": "/characters/v2/ryuka/2.1.0/manifest.json",
    "generatedFrom": "/characters/v2/catalog.json",
    "assetSource": "/characters/platform/kakera/ryuka.png"
  }
}