{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "draft_outreach_message response",
  "type": "object",
  "properties": {
    "draft_type": { "type": "string" },
    "channel": { "type": "string" },
    "prompt_source_path": { "type": "string" },
    "prompt_context": { "type": "string" },
    "instruction": { "type": "string" },
    "variables": {
      "type": "object",
      "additionalProperties": {
        "type": ["string", "null"]
      }
    },
    "usage_notes": {
      "type": "array",
      "items": { "type": "string" }
    }
  },
  "required": [
    "draft_type",
    "channel",
    "prompt_source_path",
    "prompt_context",
    "instruction",
    "variables",
    "usage_notes"
  ]
}