Function stripBase64Images

src/tools/web/extract-select.ts:52–54

(text: string)

 * or vision-analyze them. Mirrors Hermes's convert_base64_images_to_links. PURE.
 */
export function stripBase64Images(text: string): string {
  return text.replace(/!\[([^\]]*)\]\(\s*data:image\/[^;]+;base64,[^)]*\)/gi, (_m, alt) => `[IMAGE${alt ? `: ${String(alt).trim()}` : ''}]`);
}

/** Hermes's positional fallback: a head+tail window (~75/25), snapped to line boundaries. PURE. */
export function headTailWindow(text: string, budget: number): { content: string; keptChars: number } {