{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://cortex-agent/schemas/event-bus/extension.json",
  "title": "custom:* extension event payload",
  "description": "Template for custom extension events. Payload must be a non-empty object; no fixed required fields beyond the envelope.",
  "type": "object",
  "required": [],
  "additionalProperties": true,
  "properties": {}
}