Function getTodoReminderTurnCounts

src/utils/attachments.ts:3219–3271

(messages: Message[])

}

function getTodoReminderTurnCounts(messages: Message[]): {
  turnsSinceLastTodoWrite: number
  turnsSinceLastReminder: number
} {
  let lastTodoWriteIndex = -1
  let lastReminderIndex = -1
  let assistantTurnsSinceWrite = 0
  let assistantTurnsSinceReminder = 0

  // Iterate backwards to find most recent events
  for (let i = messages.length - 1; i >= 0; i--) {
    const message = messages[i]

    if (message?.type === 'assistant') {
      if (isThinkingMessage(message)) {
        // Skip thinking messages
        continue
      }

      // Check for TodoWrite usage BEFORE incrementing counter
      // (we don't want to count the TodoWrite message itself as "1 turn since write")
      if (
        lastTodoWriteIndex === -1 &&
        'message' in message &&
        Array.isArray(message.message?.content) &&
        message.message.content.some(
          block => block.type === 'tool_use' && block.name === 'TodoWrite',
        )
      ) {
        lastTodoWriteIndex = i
      }

      // Count assistant turns before finding events
      if (lastTodoWriteIndex === -1) assistantTurnsSinceWrite++
      if (lastReminderIndex === -1) assistantTurnsSinceReminder++
    } else if (
      lastReminderIndex === -1 &&
      message?.type === 'attachment' &&
      message.attachment.type === 'todo_reminder'
    ) {
      lastReminderIndex = i
    }

    if (lastTodoWriteIndex !== -1 && lastReminderIndex !== -1) {
      break
    }
  }

  return {
    turnsSinceLastTodoWrite: assistantTurnsSinceWrite,
    turnsSinceLastReminder: assistantTurnsSinceReminder,
  }
}

async function getTodoReminderAttachments(
  messages: Message[] | undefined,