Function isOpenThinkingBlock

cli/src/utils/block-operations.ts:98–103

(block: ContentBlock | undefined)

 * Check if a text block represents an open (unclosed) thinking block.
 */
const isOpenThinkingBlock = (block: ContentBlock | undefined): boolean => {
  if (!block || block.type !== 'text') {
    return false
  }
  return block.textType === 'reasoning' && block.thinkingOpen === true
}

/**
 * Creates a new reasoning (thinking) text block.