{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://mnstry.org/contracts/atelier/source-sidecar.v1.schema.json",
  "title": "Atelier Source Sidecar",
  "description": "Committed metadata sidecar for non-Markdown Atelier knowledge graph sources.",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema", "asset", "title", "summary", "tags", "kg"],
  "properties": {
    "schema": {
      "const": "mnstry.source-sidecar@v1"
    },
    "asset": {
      "description": "Filename of the adjacent non-Markdown asset this sidecar identifies.",
      "type": "string",
      "minLength": 1
    },
    "title": {
      "type": "string",
      "minLength": 1
    },
    "summary": {
      "type": "string"
    },
    "tags": {
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 1
      },
      "uniqueItems": true
    },
    "kg": {
      "type": "object",
      "additionalProperties": false,
      "required": ["id", "type", "domain", "lifecycle", "status", "audience", "relations"],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-z0-9][a-z0-9-]*:[a-z0-9][a-z0-9:._/-]*$"
        },
        "type": {
          "enum": ["html", "pdf", "docx", "artifact", "evidence", "source", "prototype", "research", "report", "manifest"]
        },
        "domain": {
          "type": "string",
          "minLength": 1
        },
        "lifecycle": {
          "type": "string",
          "minLength": 1
        },
        "status": {
          "enum": ["active", "draft", "archived", "template"]
        },
        "audience": {
          "enum": ["private", "team", "operator", "staff", "public", "sensitive"]
        },
        "relations": {
          "type": "object",
          "additionalProperties": false,
          "properties": {
            "related": { "$ref": "#/$defs/relationTargets" },
            "supports": { "$ref": "#/$defs/relationTargets" },
            "supersedes": { "$ref": "#/$defs/relationTargets" },
            "implements": { "$ref": "#/$defs/relationTargets" },
            "depends_on": { "$ref": "#/$defs/relationTargets" },
            "evidences": { "$ref": "#/$defs/relationTargets" },
            "contradicts": { "$ref": "#/$defs/relationTargets" },
            "belongs_to": { "$ref": "#/$defs/relationTargets" }
          }
        }
      }
    }
  },
  "$defs": {
    "relationTargets": {
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 1
      },
      "uniqueItems": true
    }
  }
}