{
  "_comment": "Canonical empty envelope for predefined meter types (DIRECT, DELTA, CUMULATIVE, SUM, MAX, MIN, COUNT, AVG). Build skill deep-copies this, sets type to the specific value, and fills typeDefinition. NO tasks[] field. Source convention: developer-agent examples 1-5 in meter-complete-examples.md.",
  "name": "",
  "description": "",
  "type": "",
  "version": "0.0.1",
  "typeDefinition": {
    "sourceType": "",
    "schemaId": "",
    "fieldMappings": []
  }
}