{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://thinkloom.app/schemas/provenance/1.0/idea-revision.schema.json",
  "title": "Idea revision",
  "description": "Immutable content revision for one idea.",
  "type": "object",
  "properties": {
    "schema_version": {
      "const": "1.0"
    },
    "revision_id": {
      "type": "string",
      "pattern": "^revision_[0-9A-HJKMNP-TV-Z]{26}$"
    },
    "idea_id": {
      "type": "string",
      "pattern": "^idea_[0-9A-HJKMNP-TV-Z]{26}$"
    },
    "revision_number": {
      "type": "integer",
      "minimum": 1
    },
    "title": {
      "type": "string",
      "minLength": 1
    },
    "summary": {
      "type": "string",
      "minLength": 1
    },
    "detail": {
      "type": "string"
    },
    "tags": {
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 1
      },
      "uniqueItems": true
    },
    "source_turn_ids": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^turn_[0-9A-HJKMNP-TV-Z]{26}$"
      },
      "uniqueItems": true
    },
    "parent_idea_ids": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^idea_[0-9A-HJKMNP-TV-Z]{26}$"
      },
      "uniqueItems": true
    },
    "created_by": {
      "enum": [
        "user",
        "assistant",
        "mixed"
      ]
    },
    "created_at": {
      "type": "string",
      "format": "date-time",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d{3}Z$"
    },
    "content_sha256": {
      "type": "string",
      "pattern": "^sha256:[a-f0-9]{64}$"
    }
  },
  "required": [
    "schema_version",
    "revision_id",
    "idea_id",
    "revision_number",
    "title",
    "summary",
    "detail",
    "tags",
    "source_turn_ids",
    "parent_idea_ids",
    "created_by",
    "created_at",
    "content_sha256"
  ],
  "additionalProperties": false,
  "examples": [
    {
      "schema_version": "1.0",
      "revision_id": "revision_01J0000000000000000000000A",
      "idea_id": "idea_01J00000000000000000000009",
      "revision_number": 1,
      "title": "Attention as civic infrastructure",
      "summary": "Institutions influence shared attention.",
      "detail": "Treat attention as a public condition.",
      "tags": [
        "thesis"
      ],
      "source_turn_ids": [
        "turn_01J00000000000000000000007"
      ],
      "parent_idea_ids": [],
      "created_by": "mixed",
      "created_at": "2026-07-17T18:42:10.123Z",
      "content_sha256": "sha256:cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc"
    }
  ]
}