Function buildDeepLinkBanner

src/utils/deepLink/banner.ts:54–75

(info: DeepLinkBannerInfo)

 * and whether its CLAUDE.md may be stale relative to upstream.
 */
export function buildDeepLinkBanner(info: DeepLinkBannerInfo): string {
  const lines = [
    `This session was opened by an external deep link in ${tildify(info.cwd)}`,
  ]
  if (info.repo) {
    const age = info.lastFetch ? formatRelativeTimeAgo(info.lastFetch) : 'never'
    const stale =
      !info.lastFetch ||
      Date.now() - info.lastFetch.getTime() > STALE_FETCH_WARN_MS
    lines.push(
      `Resolved ${info.repo} from local clones · last fetched ${age}${stale ? ' — CLAUDE.md may be stale' : ''}`,
    )
  }
  if (info.prefillLength) {
    lines.push(
      info.prefillLength > LONG_PREFILL_THRESHOLD
        ? `The prompt below (${formatNumber(info.prefillLength)} chars) was supplied by the link — scroll to review the entire prompt before pressing Enter.`
        : 'The prompt below was supplied by the link — review carefully before pressing Enter.',
    )
  }
  return lines.join('\n')
}

/**
 * Read the mtime of .git/FETCH_HEAD, which git updates on every fetch or