Function wrapSystemUpdate

packages/llm/src/protocols/shared.ts:120–121

(parts: ReadonlyArray<{ readonly text: string }>)

 * temporal position, and XML-escapes content so it cannot close the wrapper.
 */
export const wrapSystemUpdate = (parts: ReadonlyArray<{ readonly text: string }>) =>
  `<system-update>\n${escapeSystemUpdateText(joinText(parts))}\n</system-update>`

/**
 * Chronological system updates deliberately accept text only. Do not insert