{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://mnstry.app/schemas/atelier-claim.v1.schema.json",
  "title": "atelier-claim@v1",
  "description": "Proposal-only relationship claim emitted by an agent, human, script, or optional provider. It cannot mutate canonical front matter, graph relations, public exports, MCP feeds, or runtime imports.",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema",
    "claimId",
    "subject",
    "predicate",
    "object",
    "provider",
    "status",
    "promoted"
  ],
  "properties": {
    "schema": {
      "const": "atelier-claim@v1"
    },
    "claimId": {
      "type": "string",
      "pattern": "^claim:[a-z0-9][a-z0-9:-]*$"
    },
    "subject": {
      "description": "Stable kg.id for the source node being described.",
      "type": "string",
      "pattern": "^[a-z0-9][a-z0-9-]*:[a-z0-9][a-z0-9:-]*$"
    },
    "predicate": {
      "description": "Proposed relation type. Promotion into kg.relations is a separate reviewed edit.",
      "enum": [
        "related",
        "supports",
        "supersedes",
        "implements",
        "depends_on",
        "evidences",
        "contradicts",
        "belongs_to"
      ]
    },
    "object": {
      "description": "Stable kg.id for the target node being described.",
      "type": "string",
      "pattern": "^[a-z0-9][a-z0-9-]*:[a-z0-9][a-z0-9:-]*$"
    },
    "provider": {
      "description": "Claim proposer, not authority.",
      "enum": [
        "codex",
        "manual",
        "graphify",
        "claude",
        "script"
      ]
    },
    "status": {
      "const": "proposed"
    },
    "promoted": {
      "const": false
    },
    "confidence": {
      "type": "number",
      "minimum": 0,
      "maximum": 1
    },
    "evidence": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "notes": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "createdAt": {
      "type": "string",
      "format": "date-time"
    }
  }
}