Function extractOutline

src/agent/read-cache.ts:73–82

(content: string | null)

/** Extract the structural outline block from a read_file result, if present. */
export function extractOutline(content: string | null): string | null {
  if (!content) return null;
  const idx = content.indexOf('OUTLINE');
  if (idx === -1) return null;
  const tail = content.slice(idx);
  const stop = tail.search(/\n\s*(HEAD\b|---|===|\.\.\.)/);
  const block = (stop === -1 ? tail : tail.slice(0, stop)).trim();
  const lines = block.split('\n').slice(0, 40).join('\n').trim();
  return lines || null;
}

function approxLineCount(content: string | null): number | null {
  if (!content) return null;