Function resultToText

packages/ai-react/src/mcp-app-resource.tsx:31–37

* Coalesce an arbitrary bridge result into the `string` required by the * `CallToolResult` text content block. `JSON.stringify` is typed to return * `string` but actually returns `undefined` for inputs like `undefined` or a * function, so we narrow explicitly to avoid `text: undefined`.

(result: unknown)

 * function, so we narrow explicitly to avoid `text: undefined`.
 */
function resultToText(result: unknown): string {
  if (typeof result === 'string') return result
  // `JSON.stringify`'s lib signature claims `string`, but it returns
  // `undefined` for `undefined`/function inputs; type the call honestly.
  const stringify: (value: unknown) => string | undefined = JSON.stringify
  return stringify(result) ?? 'null'
}

export function MCPAppResource(props: MCPAppResourceProps): JSX.Element {
  const { bridge } = props