Function isToolResultContentEmpty

src/utils/toolResultStorage.ts:250–265

(
  content: ToolResultBlockParam['content'],
)

 * (images, tool_reference) are treated as non-empty.
 */
export function isToolResultContentEmpty(
  content: ToolResultBlockParam['content'],
): boolean {
  if (!content) return true
  if (typeof content === 'string') return content.trim() === ''
  if (!Array.isArray(content)) return false
  if (content.length === 0) return true
  return content.every(
    block =>
      typeof block === 'object' &&
      'type' in block &&
      block.type === 'text' &&
      'text' in block &&
      (typeof block.text !== 'string' || block.text.trim() === ''),
  )
}

/**
 * Handle large tool results by persisting to disk instead of truncating.