Function buildCompactionMessageText

src/common/utils/compaction/compactionPrompt.ts:20–32

(options: BuildCompactionMessageTextOptions)

 * so prompt wording stays consistent regardless of where compaction starts.
 */
export function buildCompactionMessageText(options: BuildCompactionMessageTextOptions): string {
  const targetWords = options.maxOutputTokens
    ? Math.round(options.maxOutputTokens / WORDS_TO_TOKENS_RATIO)
    : DEFAULT_COMPACTION_WORD_TARGET;

  let messageText = buildCompactionPrompt(targetWords);

  if (options.followUpContent && !isDefaultSourceContent(options.followUpContent)) {
    messageText += `\n\nThe user wants to continue with: ${options.followUpContent.text}`;
  }

  return messageText;
}