{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://docs.chemvault.science/contracts/chemvault-event-v1.schema.json",
  "title": "ChemVault cross-service event envelope",
  "type": "object",
  "additionalProperties": false,
  "required": ["specVersion", "id", "type", "source", "subject", "time", "user", "data"],
  "properties": {
    "specVersion": { "const": "1.0" },
    "id": { "type": "string", "minLength": 1 },
    "type": {
      "enum": [
        "files.file.ready",
        "lab.analysis.started",
        "lab.analysis.completed",
        "lab.analysis.failed"
      ]
    },
    "source": { "enum": ["chemvault-files", "chemvault-lab"] },
    "subject": { "type": "string", "minLength": 1 },
    "time": { "type": "string", "format": "date-time" },
    "user": {
      "type": "object",
      "additionalProperties": false,
      "required": ["id"],
      "properties": {
        "id": { "type": "string", "minLength": 1 }
      }
    },
    "data": { "type": "object" }
  }
}