Function findThinkingTriggerPositions

src/utils/thinking.ts:36–58

(text: string)

 * Find positions of "ultrathink" keyword in text (for UI highlighting/notification)
 */
export function findThinkingTriggerPositions(text: string): Array<{
  word: string
  start: number
  end: number
}> {
  const positions: Array<{ word: string; start: number; end: number }> = []
  // Fresh /g literal each call — String.prototype.matchAll copies lastIndex
  // from the source regex, so a shared instance would leak state from
  // hasUltrathinkKeyword's .test() into this call on the next render.
  const matches = text.matchAll(/\bultrathink\b/gi)

  for (const match of matches) {
    if (match.index !== undefined) {
      positions.push({
        word: match[0],
        start: match.index,
        end: match.index + match[0].length,
      })
    }
  }

  return positions
}

const RAINBOW_COLORS: Array<keyof Theme> = [
  'rainbow_red',