{
 "documentation_revision": 33,
 "api_revision": 79,
 "source": "Endpoints.all + Learn.endpoints + McpTools",
 "operation": {
  "summary": "Start downloading an opt-in engine's model now (on Wi-Fi), so the first find with it doesn't wait. A find or crop that names it starts the download too",
  "method": "POST",
  "auth": true,
  "mcp_tool": "images_engines_download",
  "query": [],
  "developer_only": false,
  "capture": false,
  "body": [{
   "name": "engine",
   "description": "on_device_detector or on_device_outline",
   "type": "string",
   "required": true,
   "enum": [
    "on_device_detector",
    "on_device_outline"
   ]
  }],
  "example": "POST /v1/images/engines/download {\"engine\":\"on_device_outline\"}",
  "idempotent": true,
  "path": "/v1/images/engines/download",
  "capability": "find_crop",
  "returns": "The engine as GET /v1/images/engines shows it",
  "mcp_input_schema": {
   "type": "object",
   "properties": {
    "engine": {
     "description": "on_device_detector or on_device_outline",
     "type": "string",
     "enum": [
      "on_device_detector",
      "on_device_outline"
     ]
    },
    "idempotency_key": {
     "description": "Any UUID; repeating the call with the same key within 24 h returns the first result instead of acting twice",
     "type": "string"
    }
   },
   "required": ["engine"]
  },
  "errors": [
   "invalid_parameter",
   "capability_disabled"
  ],
  "requires": null
 }
}