Function getPlanModeAttachmentTurnCount

src/utils/attachments.ts:1131–1163

(messages: Message[])

}

function getPlanModeAttachmentTurnCount(messages: Message[]): {
  turnCount: number
  foundPlanModeAttachment: boolean
} {
  let turnsSinceLastAttachment = 0
  let foundPlanModeAttachment = false

  // Iterate backwards to find most recent plan_mode attachment.
  // Count HUMAN turns (non-meta, non-tool-result user messages), not assistant
  // messages — the tool loop in query.ts calls getAttachmentMessages on every
  // tool round, so counting assistant messages would fire the reminder every
  // 5 tool calls instead of every 5 human turns.
  for (let i = messages.length - 1; i >= 0; i--) {
    const message = messages[i]

    if (
      message?.type === 'user' &&
      !message.isMeta &&
      !hasToolResultContent(message.message.content)
    ) {
      turnsSinceLastAttachment++
    } else if (
      message?.type === 'attachment' &&
      (message.attachment.type === 'plan_mode' ||
        message.attachment.type === 'plan_mode_reentry')
    ) {
      foundPlanModeAttachment = true
      break
    }
  }

  return { turnCount: turnsSinceLastAttachment, foundPlanModeAttachment }
}

/**
 * Count plan_mode attachments since the last plan_mode_exit (or from start if no exit).