Function closeNativeReasoningBlock

cli/src/utils/block-operations.ts:363–390

(
  blocks: ContentBlock[],
)

 * been added after the reasoning block but before text output starts.
 */
export const closeNativeReasoningBlock = (
  blocks: ContentBlock[],
): ContentBlock[] => {
  // Find the last native reasoning block (not just the last block)
  let lastReasoningIndex = -1
  for (let i = blocks.length - 1; i >= 0; i--) {
    if (isNativeReasoningBlock(blocks[i])) {
      lastReasoningIndex = i
      break
    }
  }
  
  if (lastReasoningIndex === -1) {
    return blocks
  }
  
  const reasoningBlock = blocks[lastReasoningIndex]
  if (reasoningBlock.type !== 'text') {
    return blocks
  }
  
  const nextBlocks = [...blocks]
  nextBlocks[lastReasoningIndex] = {
    ...reasoningBlock,
    thinkingOpen: false,
  }
  return nextBlocks
}

export const appendTextToRootStream = (
  blocks: ContentBlock[],