{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/osolmaz/pi-workflows/schemas/human-decision-cancellation-v1.schema.json",
  "title": "pi-workflows human decision cancellation v1",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema", "decisionId", "requestDigest", "cancelledAt", "reason"],
  "properties": {
    "schema": { "const": "pi-workflows.human-decision-cancellation.v1" },
    "decisionId": { "type": "string" },
    "requestDigest": { "type": "string", "pattern": "^sha256:[a-f0-9]{64}$" },
    "cancelledAt": { "type": "string", "format": "date-time" },
    "reason": { "enum": ["cancelled", "expired"] }
  }
}