Function markRunningAgentsAsCancelled

cli/src/utils/block-operations.ts:491–523

(
  blocks: ContentBlock[],
)

 * Also closes any open native reasoning blocks so they don't appear "streaming".
 */
export const markRunningAgentsAsCancelled = (
  blocks: ContentBlock[],
): ContentBlock[] => {
  return blocks.map((block) => {
    if (block.type !== 'agent') {
      return block
    }

    // First recursively process nested agents, then close any reasoning blocks
    let updatedBlocks = block.blocks
      ? markRunningAgentsAsCancelled(block.blocks)
      : undefined
    
    // Close any open native reasoning blocks in this agent
    if (updatedBlocks) {
      updatedBlocks = closeNativeReasoningBlock(updatedBlocks)
    }

    if (block.status === 'running') {
      return {
        ...block,
        status: 'cancelled' as const,
        ...(updatedBlocks && { blocks: updatedBlocks }),
      }
    }

    if (updatedBlocks && updatedBlocks !== block.blocks) {
      return { ...block, blocks: updatedBlocks }
    }

    return block
  })
}