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nana-story/contracts/schema/presentation-snapshot.schema.json
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"title": "PresentationSnapshot",
"description": "Player-authorized presentation output committed with a [`StoryNode`].\n\nThe snapshot deliberately contains no runtime facts. Exact relationships,\nhidden checks, NPC knowledge and private inventory remain in `RuntimeState`\nand must pass through the normal `PlayerView` projection boundary.",
"type": "object",
"properties": {
"beats": {
"type": "array",
"default": [],
"items": {
"$ref": "#/$defs/PresentationBeat"
}
},
"can_continue": {
"type": "boolean",
"default": true
},
"character": {
"$ref": "#/$defs/PresentationCharacter",
"default": {
"expression": null,
"id": "",
"name": "",
"pose": null
}
},
"scene": {
"$ref": "#/$defs/PresentationScene",
"default": {
"id": "",
"title": ""
}
},
"suggestions": {
"type": "array",
"default": [],
"items": {
"$ref": "#/$defs/ActionSuggestion"
}
}
},
"$defs": {
"ActionSuggestion": {
"type": "object",
"properties": {
"draft": {
"type": "string"
},
"id": {
"type": "string"
},
"label": {
"type": "string"
}
},
"required": [
"id",
"label",
"draft"
]
},
"BeatKind": {
"type": "string",
"enum": [
"narration",
"dialogue",
"action",
"system"
]
},
"PresentationBeat": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"kind": {
"$ref": "#/$defs/BeatKind"
},
"speaker": {
"type": [
"string",
"null"
]
},
"text": {
"type": "string"
},
"visual": {
"anyOf": [
{
"$ref": "#/$defs/VisualDirective"
},
{
"type": "null"
}
]
}
},
"required": [
"id",
"kind",
"text"
]
},
"PresentationCharacter": {
"description": "Resolved public visual state for the primary character at a committed node.\n\n`expression` and `pose` are the final values after the node's beats have\nplayed. Persisting the resolved values means restoring a node does not need\nto replay an earlier branch to reconstruct the current portrait.",
"type": "object",
"properties": {
"expression": {
"type": [
"string",
"null"
],
"default": null
},
"id": {
"type": "string"
},
"name": {
"type": "string"
},
"pose": {
"type": [
"string",
"null"
],
"default": null
}
},
"required": [
"id",
"name"
]
},
"PresentationScene": {
"description": "Public scene identity frozen at a committed story node.\n\nThis is presentation data, not authoritative world state. In particular it\nmust never contain unrevealed scene facts or trigger conditions.",
"type": "object",
"properties": {
"id": {
"type": "string"
},
"title": {
"type": "string"
}
},
"required": [
"id",
"title"
]
},
"VisualDirective": {
"type": "object",
"properties": {
"character": {
"type": [
"string",
"null"
]
},
"expression": {
"type": [
"string",
"null"
]
},
"pose": {
"type": [
"string",
"null"
]
},
"scene": {
"type": [
"string",
"null"
]
}
}
}
}
}