SI loop guards in the Tool Plane — an SI's tasks_comment sends aiTurnLimit and its mail_reply the multipart field aiTurnLimit, both its charter's maxAiOnlyChatTurns (6 by default), so KBService's and EmailService's thread turn guards hold it to its own limit (their 429 AI_TURN_LIMIT answers WAIT_FOR_HUMAN, as in chat; a person's comment or reply is unchanged); and the SI pair budget (AiPairBudget): beside the charter's limit counters, an SI's disclosing send takes one unit on kamo:collab:pair:<o...