@angular-devkit/build-angular/src/builders/ng-packagr/schema.json

Angular Webpack Build Facade

{
  "$schema": "http://json-schema.org/draft-07/schema",
  "title": "ng-packagr Target",
  "description": "ng-packagr target options for Build Architect. Use to build library projects.",
  "type": "object",
  "properties": {
    "project": {
      "type": "string",
      "description": "The file path for the ng-packagr configuration file, relative to the current workspace."
    },
    "tsConfig": {
      "type": "string",
      "description": "The full path for the TypeScript configuration file, relative to the current workspace."
    },
    "watch": {
      "type": "boolean",
      "description": "Run build when files change.",
      "default": false
    },
    "poll": {
      "type": "number",
      "description": "Enable and define the file watching poll time period in milliseconds."
    }
  },
  "additionalProperties": false,
  "required": ["project"]
}