Function stripThinkingForDisplay

src/llm/thinking.ts:89–103

(text: string)

 * render. For append-only stdout streams use {@link StreamDisplayFilter} instead.
 */
export function stripThinkingForDisplay(text: string): string {
  if (!text) return text;
  // Fast path: no tags to extract, but STILL collapse runaway blank lines and
  // trim. Some local models emit long runs of newlines before their answer;
  // without this they'd render as a huge gap (the old early-return skipped it).
  if (!text.includes('<')) {
    return text.replace(/\n{3,}/g, '\n\n').replace(/^\s+/, '');
  }
  let s = extractThinking(text).visibleText;
  // An unclosed block mid-stream: cut from the opening tag to the end, dropping the
  // now-dangling whitespace that preceded it.
  const open = s.match(/<(thinking|think|reasoning|reflection)>[\s\S]*$/i);
  if (open && open.index !== undefined) s = s.slice(0, open.index).trimEnd();
  return trimTrailingPartialTag(s);
}

// Tag-delimited spans we suppress from display. Two kinds leak from local models that
// emit tool calls (or reasoning) as plain text instead of via the structured field: