Function countUserPromptsInMessages

src/utils/attribution.ts:105–148

(
  messages: ReadonlyArray<{ type: string; message?: { content?: unknown } }>,
)

 * Callers should pass messages already filtered to exclude sidechain messages.
 */
export function countUserPromptsInMessages(
  messages: ReadonlyArray<{ type: string; message?: { content?: unknown } }>,
): number {
  let count = 0

  for (const message of messages) {
    if (message.type !== 'user') {
      continue
    }

    const content = message.message?.content
    if (!content) {
      continue
    }

    let hasUserText = false

    if (typeof content === 'string') {
      if (isTerminalOutput(content)) {
        continue
      }
      hasUserText = content.trim().length > 0
    } else if (Array.isArray(content)) {
      hasUserText = content.some(block => {
        if (!block || typeof block !== 'object' || !('type' in block)) {
          return false
        }
        return (
          (block.type === 'text' &&
            typeof block.text === 'string' &&
            !isTerminalOutput(block.text)) ||
          block.type === 'image' ||
          block.type === 'document'
        )
      })
    }

    if (hasUserText) {
      count++
    }
  }

  return count
}

/**
 * Count non-sidechain user messages in transcript entries.